Publication Search Results

Search Results

Showing 1-20 of about 14099 results.
Accumulation of trace elements in leatherback turtle (Dermochelys coriacea) eggs from the south-western Caribbean indicates potential health risks to consumersGuzmán, Héctor M.Kaiser, StefanieVan Hinsberg, Vincent J.2020DOI: info:10.1016/j.chemosphere.2019.125424Chemospherev. 2430045-6535
Guzmán, Héctor M., Kaiser, Stefanie, and Van Hinsberg, Vincent J. 2020. "Accumulation of trace elements in leatherback turtle (Dermochelys coriacea) eggs from the south-western Caribbean indicates potential health risks to consumers." Chemosphere 243:https://doi.org/10.1016/j.chemosphere.2019.125424
ID: 153842
Type: article
Authors: Guzmán, Héctor M.; Kaiser, Stefanie; Van Hinsberg, Vincent J.
Keywords: STRI
Abstract: Trace metal and metalloid levels were measured in eggs of the NW Atlantic leatherback turtle (Dermochelys coriacea) from nesting grounds in the Bocas del Toro province, Panama, to infer exposure and associated risks to local communities. Samples were analyzed for a set of 26 essential and non-essential elements using inductively coupled plasma techniques. Median concentrations of Fe, Zn, As, Se and Sr in D. coriacea eggs were higher than previously reported for this species, which likely reflects differential contamination levels of specimens during foraging. The evaluation of non-carcinogenic human health risks from ingesting leatherback eggs has revealed potential deleterious effects due to high concentrations of As, Se and Sr for all examined age and gender groups, while Hg and Zn levels were above international standards for children. Hazard index (HI) values exceeded unity in all cases indicating serious health impacts related to possible additive effects of multiple metals co-occurring in the eggs. Our findings suggest that exposure to high (inorganic) As and Cr(VI) levels is associated with an increased carcinogenic risk, significantly exceeding the acceptable lifetime risk of 10−6 for both adults and children. Despite some limitations, such as unclear As and Cr speciation, our results demonstrated that the ingestion of D. coriacea eggs poses considerable health risks to local communities, and their consumption should not exceed 3.4 × 10−4 g (5.0 × 10−6 eggs) kg BW d−1. Resource managers and conservationists should focus their attention to human health effects as an alternative tool to address egg poaching and consumption.
TRY plant trait database – enhanced coverage and open accessKattge, JensBönisch, GerhardDíaz, SandraLavorel, SandraPrentice, Iain ColinLeadley, PaulTautenhahn, SusanneWerner, Gijsbert D. A.Aakala, TuomasAbedi, MehdiAcosta, Alicia T. R.Adamidis, George C.Adamson, KairiAiba, MasahiroAlbert, CéAlcántara, Julio M.C, Carolina AlcázarAleixo, IzabelaAli, HamadaAmiaud, BernardAmmer, ChristianAmoroso, Mariano M.Anand, MadhurAnderson, CarolynAnten, NielsAntos, JosephApgaua, Deborah Mattos GuimarãesAshman, Tia-LynnAsmara, Degi HarjaAsner, Gregory P.Aspinwall, MichaelAtkin, OwenAubin, IsabelleBaastrup-Spohr, LarsBahalkeh, KhadijehBahn, MichaelBaker, TimothyBaker, William J.Bakker, Jan P.Baldocchi, DennisBaltzer, JenniferBanerjee, ArindamBaranger, AnneBarlow, JosBarneche, Diego R.Baruch, ZdravkoBastianelli, DenisBattles, JohnBauerle, WilliamBauters, MarijnBazzato, ErikaBeckmann, MichaelBeeckman, HansBeierkuhnlein, CarlBekker, ReneeBelfry, GavinBelluau, MichaelBeloiu, MirelaBenavides, RaquelBenomar, LahcenBerdugo-Lattke, Mary LeeBerenguer, ErikaBergamin, RodrigoBergmann, JoanaCarlucci, Marcos BergmannBerner, LoganBernhardt-Römermann, MarkusBigler, ChristofBjorkman, Anne D.Blackman, ChrisBlanco, CarolinaBlonder, BenjaminBlumenthal, DanaBocanegra-González, Kelly T.Boeckx, PascalBohlman, StephanieBöhning-Gaese, KatrinBoisvert-Marsh, LauraBond, WilliamBond-Lamberty, BenBoom, ArnoudBoonman, Coline C. F.Bordin, KauaneBoughton, Elizabeth H.Boukili, VanessaBowman, David M. J. S.Bravo, SandraBrendel, Marco RichardBroadley, Martin R.Brown, Kerry A.Bruelheide, HelgeBrumnich, FedericoBruun, Hans HenrikBruy, DavidBuchanan, Serra W.Bucher, Solveig FranziskaBuchmann, NinaBuitenwerf, RobertBunker, Daniel E.Bürger, JanaBurrascano, SabinaBurslem, David F. R. P.Butterfield, Bradley J.Byun, ChaehoMarques, MarciaScalon, Marina C.Caccianiga, MarcoCadotte, MarcCailleret, MaximeCamac, JamesCamarero, Jesús JulioCampany, CourtneyCampetella, GiandiegoCampos, Juan AntonioCano-Arboleda, LauraCanullo, RobertoCarbognani, MicheleCarvalho, FabioCasanoves, FernandoCastagneyrol, BastienCatford, Jane A.Cavender-Bares, JeannineCerabolini, Bruno E. L.Cervellini, MarcoChacón-Madrigal, EduardoChapin, KennethChapin, F. S.Chelli, StefanoChen, Si-ChongChen, AnpingCherubini, PaoloChianucci, FrancescoChoat, BrendanChung, Kyong-SookChytrý, MilanCiccarelli, DanielaColl, LluísCollins, Courtney G.Conti, LuisaCoomes, DavidCornelissen, Johannes H. C.Cornwell, William K.Corona, PiermariaCoyea, MarieCraine, JosephCraven, DylanCromsigt, Joris P. G. M.Csecserits, AnikóCufar, KatarinaCuntz, MatthiasSilva, Ana Carolina daDahlin, Kyla M.Dainese, MatteoDalke, IgorFratte, Michele DalleDang-Le, Anh TuanDanihelka, JiríDannoura, MasakoDawson, SamanthaBeer, Arend Jacobus deFrutos, Angel DeLong, Jonathan R. DeDechant, BenjaminDelagrange, SylvainDelpierre, NicolasDerroire, GéDias, Arildo S.Diaz-Toribio, Milton HugoDimitrakopoulos, Panayiotis G.Dobrowolski, MarkDoktor, DanielDrevojan, PavelDong, NingDransfield, JohnDressler, StefanDuarte, LeandroDucouret, EmilieDullinger, StefanDurka, WalterDuursma, RemkoDymova, OlgaE-Vojtkó, AnnaEckstein, Rolf LutzEjtehadi, HamidElser, JamesEmilio, ThaiseEngemann, KristineErfanian, Mohammad BagherErfmeier, AlexandraEsquivel-Muelbert, AdrianeEsser, GerdEstiarte, MarcDomingues, Tomas F.Fagan, William F.Fagúndez, JaimeFalster, Daniel S.Fan, YingFang, JingyunFarris, EmmanueleFazlioglu, FatihFeng, YanhaoFernandez-Mendez, FernandoFerrara, CarlottaFerreira, JoiceFidelis, AlessandraFinegan, BryanFirn, JenniferFlowers, Timothy J.Flynn, Dan F. B.Fontana, VeronikaForey, EstelleForgiarini, CristianeFrançois, LouisFrangipani, MarceloFrank, DorotheaFrenette-Dussault, CedricFreschet, Grégoire T.Fry, Ellen L.Fyllas, Nikolaos M.Mazzochini, Guilherme G.Gachet, SophieGallagher, RachaelGanade, GisleneGanga, FrancescaGarcía-Palacios, PabloGargaglione, VeronicaGarnier, EricGarrido, Jose LuisGasper, André Luís deGea-Izquierdo, GuillermoGibson, DavidGillison, Andrew N.Giroldo, AeltonGlasenhardt, Mary-ClaireGleason, SeanGliesch, MarianaGoldberg, EmmaGöldel, BastianGonzalez-Akre, ErikaGonzalez-Andujar, Jose L.González-Melo, AndrésGonzález-Robles, AnaGraae, Bente JessenGranda, ElenaGraves, SarahGreen, Walton A.Gregor, ThomasGross, NicolasGuerin, Greg R.Günther, AngelaGutiérrez, Alvaro G.Haddock, LillieHaines, AnnaHall, JeffersonHambuckers, AlainHan, WenxuanHarrison, Sandy P.Hattingh, WesleyHawes, Joseph E.He, TianhuaHe, PengchengHeberling, Jacob MasonHelm, AveliinaHempel, StefanHentschel, JöHérault, BrunoHeres, Ana-MariaHerz, KatharinaHeuertz, MyriamHickler, ThomasHietz, PeterHiguchi, PedroHipp, Andrew L.Hirons, AndrewHock, MariaHogan, James AaronHoll, KarenHonnay, OlivierHornstein, DanielHou, EnqingHough-Snee, NateHovstad, Knut AndersIchie, TomoakiIgic, BorisIlla, EstelaIsaac, MarneyIshihara, MasaeIvanov, LeonidIvanova, LarissaIversen, Colleen M.Izquierdo, JordiJackson, Robert B.Jackson, BenjaminJactel, HervéJagodzinski, Andrzej M.Jandt, UteJansen, StevenJenkins, ThomasJentsch, AnkeJespersen, Jens Rasmus PlantenerJiang, Guo-FengJohansen, Jesper LiengaardJohnson, DavidJokela, Eric J.Joly, Carlos AlfredoJordan, Gregory J.Joseph, Grant StuartJunaedi, DeckyJunker, Robert R.Justes, EricKabzems, RichardKane, JeffreyKaplan, ZdenekKattenborn, TejaKavelenova, LyudmilaKearsley, ElizabethKempel, AnneKenzo, TanakaKerkhoff, AndrewKhalil, Mohammed I.Kinlock, Nicole L.Kissling, Wilm DanielKitajima, KaoruKitzberger, ThomasKjøller, RasmusKlein, TamirKleyer, MichaelKlimešová, JitkaKlipel, JoiceKloeppel, BrianKlotz, StefanKnops, Johannes M. H.Kohyama, TakashiKoike, FumitoKollmann, JohannesKomac, BenjaminKomatsu, KimberlyKönig, ChristianKraft, Nathan J. B.Kramer, KoenKreft, HolgerKühn, IngolfKumarathunge, DushanKuppler, JonasKurokawa, HirokoKurosawa, YokoKuyah, ShemLaclau, Jean-PaulLafleur, BenoitLallai, ErikLamb, EricLamprecht, AndreaLarkin, Daniel J.Laughlin, DanielBagousse-Pinguet, Yoann LeMaire, Guerric leRoux, Peter C. leRoux, Elizabeth leLee, TaliLens, FredericLewis, Simon L.Lhotsky, BarbaraLi, YuanzhiLi, XineLichstein, Jeremy W.Liebergesell, MarioLim, Jun YingLin, Yan-ShihLinares, Juan CarlosLiu, ChunjiangLiu, DaijunLiu, UdayanganiLivingstone, StuartLlusià, JoanLohbeck, MadelonLópez-García, ÁlvaroLopez-Gonzalez, GabrielaLososová, ZdenkaLouault, FrédériqueLukács, Balázs A.Lukeš, PetrLuo, YunjianLussu, MicheleMa, SiyanPereira, Camilla Maciel RabeloMack, MichelleMaire, VincentMäkelä, AnnikkiMäkinen, HarriMalhado, Ana Claudia MendesMallik, AzimManning, PeterManzoni, StefanoMarchetti, ZuleicaMarchino, LucaMarcilio-Silva, ViniciusMarcon, EricMarignani, MichelaMarkesteijn, LarsMartin, AdamMartínez-Garza, CristinaMartínez-Vilalta, JordiMašková, TerezaMason, KellyMason, NormanMassad, Tara JoyMasse, JacyntheMayrose, ItayMcCarthy, JamesMcCormack, M. L.McCulloh, KatherineMcFadden, Ian R.McGill, Brian J.McPartland, Mara Y.Medeiros, Juliana S.Medlyn, BelindaMeerts, PierreMehrabi, ZiaMeir, PatrickMelo, Felipe P. L.Mencuccini, MaurizioMeredieu, CéMessier, JulieMészáros, IlonaMetsaranta, JuhaMichaletz, Sean T.Michelaki, ChrysanthiMigalina, SvetlanaMilla, RubenMiller, Jesse E. D.Minden, VanessaMing, RayMokany, KarelMoles, Angela T.Molnár, AttilaMolofsky, JaneMolz, MartinMontgomery, Rebecca A.Monty, ArnaudMoravcová, LenkaMoreno-Martínez, AlvaroMoretti, MarcoMori, Akira S.Mori, ShigetaMorris, DaveMorrison, JaneMucina, LadislavMueller, SandraMuir, Christopher D.Müller, Sandra CristinaMunoz, FrançoisMyers-Smith, Isla H.Myster, Randall W.Nagano, MasahiroNaidu, ShawnaNarayanan, AyyappanNatesan, BalachandranNegoita, LukaNelson, Andrew S.Neuschulz, Eike LenaNi, JianNiedrist, GeorgNieto, JhonNiinemets, ÜloNolan, RachaelNottebrock, HenningNouvellon, YannNovakovskiy, AlexanderNystuen, Kristin OddenO'Grady, AnthonyO'Hara, KevinO'Reilly-Nugent, AndrewOakley, SimonOberhuber, WalterOhtsuka, ToshiyukiOliveira, RicardoÖllerer, KingaOlson, Mark E.Onipchenko, VladimirOnoda, YusukeOnstein, Renske E.Ordonez, Jenny C.Osada, NoriyukiOstonen, IvikaOttaviani, GianluigiOtto, SarahOverbeck, Gerhard E.Ozinga, Wim A.Pahl, Anna T.Paine, C. E. T.Pakeman, Robin J.Papageorgiou, Aristotelis C.Parfionova, EvgeniyaPärtel, MeelisPatacca, MarcoPaula, SusanaPaule, JurajPauli, HaraldPausas, Juli G.Peco, BegoñaPenuelas, JosepPerea, AntonioPeri, Pablo LuisPetisco-Souza, Ana CarolinaPetraglia, AlessandroPetritan, Any MaryPhillips, Oliver L.Pierce, SimonPillar, Valério D.Pisek, JanPomogaybin, AlexandrPoorter, HendrikPortsmuth, AngelikaPoschlod, PeterPotvin, CatherinePounds, DevonPowell, A. S.Power, Sally A.Prinzing, AndreasPuglielli, GiacomoPyšek, PetrRaevel, ValerieRammig, AnjaRansijn, JohannesRay, Courtenay A.Reich, Peter B.Reichstein, MarkusReid, Douglas E. B.Réjou-Méchain, MaximeDios, Victor Resco deRibeiro, SabinaRichardson, SarahRiibak, KerstiRillig, Matthias C.Riviera, FiammaRobert, Elisabeth M. R.Roberts, ScottRobroek, BjornRoddy, AdamRodrigues, Arthur ViniciusRogers, AlistairRollinson, EmilyRolo, VictorRömermann, ChristineRonzhina, DinaRoscher, ChristianeRosell, Julieta A.Rosenfield, Milena FerminaRossi, ChristianRoy, David B.Royer-Tardif, SamuelRüger, NadjaRuiz-Peinado, RicardoRumpf, Sabine B.Rusch, Graciela M.Ryo, MasahiroSack, LawrenSaldaña, AngelaSalgado-Negret, BeatrizSalguero-Gomez, RobertoSanta-Regina, IgnacioSantacruz-García, Ana CarolinaSantos, JoaquimSardans, JordiSchamp, BrandonScherer-Lorenzen, MichaelSchleuning, MatthiasSchmid, BernhardSchmidt, MarcoSchmitt, SylvainSchneider, Julio V.Schowanek, Simon D.Schrader, JulianSchrodt, FranziskaSchuldt, BernhardSchurr, FrankGarvizu, Galia SelayaSemchenko, MarinaSeymour, ColleenSfair, Julia C.Sharpe, Joanne M.Sheppard, Christine S.Sheremetiev, SergeShiodera, SatomiShipley, BillShovon, Tanvir AhmedSiebenkäs, AlrunSierra, CarlosSilva, VascoSilva, MateusSitzia, TommasoSjöman, HenrikSlot, MartijnSmith, Nicholas G.Sodhi, DarwinSoltis, PamelaSoltis, DouglasSomers, BenSonnier, GrégorySørensen, Mia VedelSosinski, Enio EgonSoudzilovskaia, Nadejda A.Souza, Alexandre F.Spasojevic, MarkoSperandii, Marta GaiaStan, Amanda B.Stegen, JamesSteinbauer, KlausStephan, JöSterck, FrankStojanovic, Dejan B.Strydom, TanyaSuarez, Maria LauraSvenning, Jens-ChristianSvitková, IvanaSvitok, MarekSvoboda, MiroslavSwaine, EmilySwenson, NathanTabarelli, MarceloTakagi, KentaroTappeiner, UlrikeTarifa, RubénTauugourdeau, SimonTavsanoglu, CagatayBeest, Mariska TeTedersoo, LehoThiffault, NelsonThom, DominikThomas, EvertThompson, KenThornton, Peter E.Thuiller, WilfriedTichý, LubomírTissue, DavidTjoelker, Mark G.Tng, David Yue PhinTobias, JosephTörök, PéterTarin, TonantzinTorres-Ruiz, José M.Tóthmérész, BélaTreurnicht, MartinaTrivellone, ValeriaTrolliet, FranckTrotsiuk, VolodymyrTsakalos, James L.Tsiripidis, IoannisTysklind, NiklasUmehara, ToruUsoltsev, VladimirVadeboncoeur, MatthewVaezi, JamilValladares, FernandoVamosi, JanaBodegom, Peter M. vanBreugel, Michiel vanCleemput, Elisa VanWeg, Martine van deMerwe, Stephni van derPlas, Fons van derSande, Masha T. van derKleunen, Mark vanMeerbeek, Koenraad VanVanderwel, MarkVanselow, Kim AndréVårhammar, AngelicaVarone, LauraValderrama, Maribel Yesenia VasquezVassilev, KirilVellend, MarkVeneklaas, Erik J.Verbeeck, HansVerheyen, KrisVibrans, AlexanderVieira, ImaVillacís, JaimeViolle, CyrilleVivek, PandiWagner, KatrinWaldram, MatthewWaldron, AnthonyWalker, Anthony P.Waller, MartynWalther, GabrielWang, HanWang, FengWang, WeiqiWatkins, HarryWatkins, JamesWeber, UlrichWeedon, James T.Wei, LipingWeigelt, PatrickWeiher, EvanWells, Aidan W.Wellstein, CamillaWenk, ElizabethWestoby, MarkWestwood, AlanaWhite, Philip JohnWhitten, MarkWilliams, MathewWinkler, Daniel E.Winter, KlausWomack, ChevonneWright, Ian J.Wright, S. J.Wright, JustinPinho, Bruno X.Ximenes, FabianoYamada, ToshihiroYamaji, KeikoYanai, RuthYankov, NikolayYguel, BenjaminZanini, KáZanne, Amy E.Zelený, DavidZhao, Yun-PengZheng, JingmingZheng, JiZieminska, KasiaZirbel, Chad R.Zizka, GeorgZo-Bi, Irié CasimirZotz, GerhardWirth, Christian2020DOI: info:10.1111/gcb.14904Global Change Biologyv. 26No. 1119188Hoboken, New JerseyWiley119–1881365-2486
Kattge, Jens, Bönisch, Gerhard, Díaz, Sandra, Lavorel, Sandra, Prentice, Iain Colin, Leadley, Paul, Tautenhahn, Susanne, Werner, Gijsbert D. A., Aakala, Tuomas, Abedi, Mehdi, Acosta, Alicia T. R., Adamidis, George C., Adamson, Kairi, Aiba, Masahiro, Albert, Cé, Alcántara, Julio M., C, Carolina Alcázar, Aleixo, Izabela, Ali, Hamada, Amiaud, Bernard, Ammer, Christian, Amoroso, Mariano M., Anand, Madhur, Anderson, Carolyn, Anten, Niels et al. 2020. "TRY plant trait database – enhanced coverage and open access." Global Change Biology 26 (1):119–188. https://doi.org/10.1111/gcb.14904
ID: 153685
Type: article
Authors: Kattge, Jens; Bönisch, Gerhard; Díaz, Sandra; Lavorel, Sandra; Prentice, Iain Colin; Leadley, Paul; Tautenhahn, Susanne; Werner, Gijsbert D. A.; Aakala, Tuomas; Abedi, Mehdi; Acosta, Alicia T. R.; Adamidis, George C.; Adamson, Kairi; Aiba, Masahiro; Albert, Cé; Alcántara, Julio M.; C, Carolina Alcázar; Aleixo, Izabela; Ali, Hamada; Amiaud, Bernard; Ammer, Christian; Amoroso, Mariano M.; Anand, Madhur; Anderson, Carolyn; Anten, Niels; Antos, Joseph; Apgaua, Deborah Mattos Guimarães; Ashman, Tia-Lynn; Asmara, Degi Harja; Asner, Gregory P.; Aspinwall, Michael; Atkin, Owen; Aubin, Isabelle; Baastrup-Spohr, Lars; Bahalkeh, Khadijeh; Bahn, Michael; Baker, Timothy; Baker, William J.; Bakker, Jan P.; Baldocchi, Dennis; Baltzer, Jennifer; Banerjee, Arindam; Baranger, Anne; Barlow, Jos; Barneche, Diego R.; Baruch, Zdravko; Bastianelli, Denis; Battles, John; Bauerle, William; Bauters, Marijn; Bazzato, Erika; Beckmann, Michael; Beeckman, Hans; Beierkuhnlein, Carl; Bekker, Renee; Belfry, Gavin; Belluau, Michael; Beloiu, Mirela; Benavides, Raquel; Benomar, Lahcen; Berdugo-Lattke, Mary Lee; Berenguer, Erika; Bergamin, Rodrigo; Bergmann, Joana; Carlucci, Marcos Bergmann; Berner, Logan; Bernhardt-Römermann, Markus; Bigler, Christof; Bjorkman, Anne D.; Blackman, Chris; Blanco, Carolina; Blonder, Benjamin; Blumenthal, Dana; Bocanegra-González, Kelly T.; Boeckx, Pascal; Bohlman, Stephanie; Böhning-Gaese, Katrin; Boisvert-Marsh, Laura; Bond, William; Bond-Lamberty, Ben; Boom, Arnoud; Boonman, Coline C. F.; Bordin, Kauane; Boughton, Elizabeth H.; Boukili, Vanessa; Bowman, David M. J. S.; Bravo, Sandra; Brendel, Marco Richard; Broadley, Martin R.; Brown, Kerry A.; Bruelheide, Helge; Brumnich, Federico; Bruun, Hans Henrik; Bruy, David; Buchanan, Serra W.; Bucher, Solveig Franziska; Buchmann, Nina; Buitenwerf, Robert; Bunker, Daniel E.; Bürger, Jana; Burrascano, Sabina; Burslem, David F. R. P.; Butterfield, Bradley J.; Byun, Chaeho; Marques, Marcia; Scalon, Marina C.; Caccianiga, Marco; Cadotte, Marc; Cailleret, Maxime; Camac, James; Camarero, Jesús Julio; Campany, Courtney; Campetella, Giandiego; Campos, Juan Antonio; Cano-Arboleda, Laura; Canullo, Roberto; Carbognani, Michele; Carvalho, Fabio; Casanoves, Fernando; Castagneyrol, Bastien; Catford, Jane A.; Cavender-Bares, Jeannine; Cerabolini, Bruno E. L.; Cervellini, Marco; Chacón-Madrigal, Eduardo; Chapin, Kenneth; Chapin, F. S.; Chelli, Stefano; Chen, Si-Chong; Chen, Anping; Cherubini, Paolo; Chianucci, Francesco; Choat, Brendan; Chung, Kyong-Sook; Chytrý, Milan; Ciccarelli, Daniela; Coll, Lluís; Collins, Courtney G.; Conti, Luisa; Coomes, David; Cornelissen, Johannes H. C.; Cornwell, William K.; Corona, Piermaria; Coyea, Marie; Craine, Joseph; Craven, Dylan; Cromsigt, Joris P. G. M.; Csecserits, Anikó; Cufar, Katarina; Cuntz, Matthias; Silva, Ana Carolina da; Dahlin, Kyla M.; Dainese, Matteo; Dalke, Igor; Fratte, Michele Dalle; Dang-Le, Anh Tuan; Danihelka, Jirí; Dannoura, Masako; Dawson, Samantha; Beer, Arend Jacobus de; Frutos, Angel De; Long, Jonathan R. De; Dechant, Benjamin; Delagrange, Sylvain; Delpierre, Nicolas; Derroire, Gé; Dias, Arildo S.; Diaz-Toribio, Milton Hugo; Dimitrakopoulos, Panayiotis G.; Dobrowolski, Mark; Doktor, Daniel; Drevojan, Pavel; Dong, Ning; Dransfield, John; Dressler, Stefan; Duarte, Leandro; Ducouret, Emilie; Dullinger, Stefan; Durka, Walter; Duursma, Remko; Dymova, Olga; E-Vojtkó, Anna; Eckstein, Rolf Lutz; Ejtehadi, Hamid; Elser, James; Emilio, Thaise; Engemann, Kristine; Erfanian, Mohammad Bagher; Erfmeier, Alexandra; Esquivel-Muelbert, Adriane; Esser, Gerd; Estiarte, Marc; Domingues, Tomas F.; Fagan, William F.; Fagúndez, Jaime; Falster, Daniel S.; Fan, Ying; Fang, Jingyun; Farris, Emmanuele; Fazlioglu, Fatih; Feng, Yanhao; Fernandez-Mendez, Fernando; Ferrara, Carlotta; Ferreira, Joice; Fidelis, Alessandra; Finegan, Bryan; Firn, Jennifer; Flowers, Timothy J.; Flynn, Dan F. B.; Fontana, Veronika; Forey, Estelle; Forgiarini, Cristiane; François, Louis; Frangipani, Marcelo; Frank, Dorothea; Frenette-Dussault, Cedric; Freschet, Grégoire T.; Fry, Ellen L.; Fyllas, Nikolaos M.; Mazzochini, Guilherme G.; Gachet, Sophie; Gallagher, Rachael; Ganade, Gislene; Ganga, Francesca; García-Palacios, Pablo; Gargaglione, Veronica; Garnier, Eric; Garrido, Jose Luis; Gasper, André Luís de; Gea-Izquierdo, Guillermo; Gibson, David; Gillison, Andrew N.; Giroldo, Aelton; Glasenhardt, Mary-Claire; Gleason, Sean; Gliesch, Mariana; Goldberg, Emma; Göldel, Bastian; Gonzalez-Akre, Erika; Gonzalez-Andujar, Jose L.; González-Melo, Andrés; González-Robles, Ana; Graae, Bente Jessen; Granda, Elena; Graves, Sarah; Green, Walton A.; Gregor, Thomas; Gross, Nicolas; Guerin, Greg R.; Günther, Angela; Gutiérrez, Alvaro G.; Haddock, Lillie; Haines, Anna; Hall, Jefferson; Hambuckers, Alain; Han, Wenxuan; Harrison, Sandy P.; Hattingh, Wesley; Hawes, Joseph E.; He, Tianhua; He, Pengcheng; Heberling, Jacob Mason; Helm, Aveliina; Hempel, Stefan; Hentschel, Jö; Hérault, Bruno; Heres, Ana-Maria; Herz, Katharina; Heuertz, Myriam; Hickler, Thomas; Hietz, Peter; Higuchi, Pedro; Hipp, Andrew L.; Hirons, Andrew; Hock, Maria; Hogan, James Aaron; Holl, Karen; Honnay, Olivier; Hornstein, Daniel; Hou, Enqing; Hough-Snee, Nate; Hovstad, Knut Anders; Ichie, Tomoaki; Igic, Boris; Illa, Estela; Isaac, Marney; Ishihara, Masae; Ivanov, Leonid; Ivanova, Larissa; Iversen, Colleen M.; Izquierdo, Jordi; Jackson, Robert B.; Jackson, Benjamin; Jactel, Hervé; Jagodzinski, Andrzej M.; Jandt, Ute; Jansen, Steven; Jenkins, Thomas; Jentsch, Anke; Jespersen, Jens Rasmus Plantener; Jiang, Guo-Feng; Johansen, Jesper Liengaard; Johnson, David; Jokela, Eric J.; Joly, Carlos Alfredo; Jordan, Gregory J.; Joseph, Grant Stuart; Junaedi, Decky; Junker, Robert R.; Justes, Eric; Kabzems, Richard; Kane, Jeffrey; Kaplan, Zdenek; Kattenborn, Teja; Kavelenova, Lyudmila; Kearsley, Elizabeth; Kempel, Anne; Kenzo, Tanaka; Kerkhoff, Andrew; Khalil, Mohammed I.; Kinlock, Nicole L.; Kissling, Wilm Daniel; Kitajima, Kaoru; Kitzberger, Thomas; Kjøller, Rasmus; Klein, Tamir; Kleyer, Michael; Klimešová, Jitka; Klipel, Joice; Kloeppel, Brian; Klotz, Stefan; Knops, Johannes M. H.; Kohyama, Takashi; Koike, Fumito; Kollmann, Johannes; Komac, Benjamin; Komatsu, Kimberly; König, Christian; Kraft, Nathan J. B.; Kramer, Koen; Kreft, Holger; Kühn, Ingolf; Kumarathunge, Dushan; Kuppler, Jonas; Kurokawa, Hiroko; Kurosawa, Yoko; Kuyah, Shem; Laclau, Jean-Paul; Lafleur, Benoit; Lallai, Erik; Lamb, Eric; Lamprecht, Andrea; Larkin, Daniel J.; Laughlin, Daniel; Bagousse-Pinguet, Yoann Le; Maire, Guerric le; Roux, Peter C. le; Roux, Elizabeth le; Lee, Tali; Lens, Frederic; Lewis, Simon L.; Lhotsky, Barbara; Li, Yuanzhi; Li, Xine; Lichstein, Jeremy W.; Liebergesell, Mario; Lim, Jun Ying; Lin, Yan-Shih; Linares, Juan Carlos; Liu, Chunjiang; Liu, Daijun; Liu, Udayangani; Livingstone, Stuart; Llusià, Joan; Lohbeck, Madelon; López-García, Álvaro; Lopez-Gonzalez, Gabriela; Lososová, Zdenka; Louault, Frédérique; Lukács, Balázs A.; Lukeš, Petr; Luo, Yunjian; Lussu, Michele; Ma, Siyan; Pereira, Camilla Maciel Rabelo; Mack, Michelle; Maire, Vincent; Mäkelä, Annikki; Mäkinen, Harri; Malhado, Ana Claudia Mendes; Mallik, Azim; Manning, Peter; Manzoni, Stefano; Marchetti, Zuleica; Marchino, Luca; Marcilio-Silva, Vinicius; Marcon, Eric; Marignani, Michela; Markesteijn, Lars; Martin, Adam; Martínez-Garza, Cristina; Martínez-Vilalta, Jordi; Mašková, Tereza; Mason, Kelly; Mason, Norman; Massad, Tara Joy; Masse, Jacynthe; Mayrose, Itay; McCarthy, James; McCormack, M. L.; McCulloh, Katherine; McFadden, Ian R.; McGill, Brian J.; McPartland, Mara Y.; Medeiros, Juliana S.; Medlyn, Belinda; Meerts, Pierre; Mehrabi, Zia; Meir, Patrick; Melo, Felipe P. L.; Mencuccini, Maurizio; Meredieu, Cé; Messier, Julie; Mészáros, Ilona; Metsaranta, Juha; Michaletz, Sean T.; Michelaki, Chrysanthi; Migalina, Svetlana; Milla, Ruben; Miller, Jesse E. D.; Minden, Vanessa; Ming, Ray; Mokany, Karel; Moles, Angela T.; Molnár, Attila; Molofsky, Jane; Molz, Martin; Montgomery, Rebecca A.; Monty, Arnaud; Moravcová, Lenka; Moreno-Martínez, Alvaro; Moretti, Marco; Mori, Akira S.; Mori, Shigeta; Morris, Dave; Morrison, Jane; Mucina, Ladislav; Mueller, Sandra; Muir, Christopher D.; Müller, Sandra Cristina; Munoz, François; Myers-Smith, Isla H.; Myster, Randall W.; Nagano, Masahiro; Naidu, Shawna; Narayanan, Ayyappan; Natesan, Balachandran; Negoita, Luka; Nelson, Andrew S.; Neuschulz, Eike Lena; Ni, Jian; Niedrist, Georg; Nieto, Jhon; Niinemets, Ülo; Nolan, Rachael; Nottebrock, Henning; Nouvellon, Yann; Novakovskiy, Alexander; Nystuen, Kristin Odden; O'Grady, Anthony; O'Hara, Kevin; O'Reilly-Nugent, Andrew; Oakley, Simon; Oberhuber, Walter; Ohtsuka, Toshiyuki; Oliveira, Ricardo; Öllerer, Kinga; Olson, Mark E.; Onipchenko, Vladimir; Onoda, Yusuke; Onstein, Renske E.; Ordonez, Jenny C.; Osada, Noriyuki; Ostonen, Ivika; Ottaviani, Gianluigi; Otto, Sarah; Overbeck, Gerhard E.; Ozinga, Wim A.; Pahl, Anna T.; Paine, C. E. T.; Pakeman, Robin J.; Papageorgiou, Aristotelis C.; Parfionova, Evgeniya; Pärtel, Meelis; Patacca, Marco; Paula, Susana; Paule, Juraj; Pauli, Harald; Pausas, Juli G.; Peco, Begoña; Penuelas, Josep; Perea, Antonio; Peri, Pablo Luis; Petisco-Souza, Ana Carolina; Petraglia, Alessandro; Petritan, Any Mary; Phillips, Oliver L.; Pierce, Simon; Pillar, Valério D.; Pisek, Jan; Pomogaybin, Alexandr; Poorter, Hendrik; Portsmuth, Angelika; Poschlod, Peter; Potvin, Catherine; Pounds, Devon; Powell, A. S.; Power, Sally A.; Prinzing, Andreas; Puglielli, Giacomo; Pyšek, Petr; Raevel, Valerie; Rammig, Anja; Ransijn, Johannes; Ray, Courtenay A.; Reich, Peter B.; Reichstein, Markus; Reid, Douglas E. B.; Réjou-Méchain, Maxime; Dios, Victor Resco de; Ribeiro, Sabina; Richardson, Sarah; Riibak, Kersti; Rillig, Matthias C.; Riviera, Fiamma; Robert, Elisabeth M. R.; Roberts, Scott; Robroek, Bjorn; Roddy, Adam; Rodrigues, Arthur Vinicius; Rogers, Alistair; Rollinson, Emily; Rolo, Victor; Römermann, Christine; Ronzhina, Dina; Roscher, Christiane; Rosell, Julieta A.; Rosenfield, Milena Fermina; Rossi, Christian; Roy, David B.; Royer-Tardif, Samuel; Rüger, Nadja; Ruiz-Peinado, Ricardo; Rumpf, Sabine B.; Rusch, Graciela M.; Ryo, Masahiro; Sack, Lawren; Saldaña, Angela; Salgado-Negret, Beatriz; Salguero-Gomez, Roberto; Santa-Regina, Ignacio; Santacruz-García, Ana Carolina; Santos, Joaquim; Sardans, Jordi; Schamp, Brandon; Scherer-Lorenzen, Michael; Schleuning, Matthias; Schmid, Bernhard; Schmidt, Marco; Schmitt, Sylvain; Schneider, Julio V.; Schowanek, Simon D.; Schrader, Julian; Schrodt, Franziska; Schuldt, Bernhard; Schurr, Frank; Garvizu, Galia Selaya; Semchenko, Marina; Seymour, Colleen; Sfair, Julia C.; Sharpe, Joanne M.; Sheppard, Christine S.; Sheremetiev, Serge; Shiodera, Satomi; Shipley, Bill; Shovon, Tanvir Ahmed; Siebenkäs, Alrun; Sierra, Carlos; Silva, Vasco; Silva, Mateus; Sitzia, Tommaso; Sjöman, Henrik; Slot, Martijn; Smith, Nicholas G.; Sodhi, Darwin; Soltis, Pamela; Soltis, Douglas; Somers, Ben; Sonnier, Grégory; Sørensen, Mia Vedel; Sosinski, Enio Egon; Soudzilovskaia, Nadejda A.; Souza, Alexandre F.; Spasojevic, Marko; Sperandii, Marta Gaia; Stan, Amanda B.; Stegen, James; Steinbauer, Klaus; Stephan, Jö; Sterck, Frank; Stojanovic, Dejan B.; Strydom, Tanya; Suarez, Maria Laura; Svenning, Jens-Christian; Svitková, Ivana; Svitok, Marek; Svoboda, Miroslav; Swaine, Emily; Swenson, Nathan; Tabarelli, Marcelo; Takagi, Kentaro; Tappeiner, Ulrike; Tarifa, Rubén; Tauugourdeau, Simon; Tavsanoglu, Cagatay; Beest, Mariska Te; Tedersoo, Leho; Thiffault, Nelson; Thom, Dominik; Thomas, Evert; Thompson, Ken; Thornton, Peter E.; Thuiller, Wilfried; Tichý, Lubomír; Tissue, David; Tjoelker, Mark G.; Tng, David Yue Phin; Tobias, Joseph; Török, Péter; Tarin, Tonantzin; Torres-Ruiz, José M.; Tóthmérész, Béla; Treurnicht, Martina; Trivellone, Valeria; Trolliet, Franck; Trotsiuk, Volodymyr; Tsakalos, James L.; Tsiripidis, Ioannis; Tysklind, Niklas; Umehara, Toru; Usoltsev, Vladimir; Vadeboncoeur, Matthew; Vaezi, Jamil; Valladares, Fernando; Vamosi, Jana; Bodegom, Peter M. van; Breugel, Michiel van; Cleemput, Elisa Van; Weg, Martine van de; Merwe, Stephni van der; Plas, Fons van der; Sande, Masha T. van der; Kleunen, Mark van; Meerbeek, Koenraad Van; Vanderwel, Mark; Vanselow, Kim André; Vårhammar, Angelica; Varone, Laura; Valderrama, Maribel Yesenia Vasquez; Vassilev, Kiril; Vellend, Mark; Veneklaas, Erik J.; Verbeeck, Hans; Verheyen, Kris; Vibrans, Alexander; Vieira, Ima; Villacís, Jaime; Violle, Cyrille; Vivek, Pandi; Wagner, Katrin; Waldram, Matthew; Waldron, Anthony; Walker, Anthony P.; Waller, Martyn; Walther, Gabriel; Wang, Han; Wang, Feng; Wang, Weiqi; Watkins, Harry; Watkins, James; Weber, Ulrich; Weedon, James T.; Wei, Liping; Weigelt, Patrick; Weiher, Evan; Wells, Aidan W.; Wellstein, Camilla; Wenk, Elizabeth; Westoby, Mark; Westwood, Alana; White, Philip John; Whitten, Mark; Williams, Mathew; Winkler, Daniel E.; Winter, Klaus; Womack, Chevonne; Wright, Ian J.; Wright, S. J.; Wright, Justin; Pinho, Bruno X.; Ximenes, Fabiano; Yamada, Toshihiro; Yamaji, Keiko; Yanai, Ruth; Yankov, Nikolay; Yguel, Benjamin; Zanini, Ká; Zanne, Amy E.; Zelený, David; Zhao, Yun-Peng; Zheng, Jingming; Zheng, Ji; Zieminska, Kasia; Zirbel, Chad R.; Zizka, Georg; Zo-Bi, Irié Casimir; Zotz, Gerhard; Wirth, Christian
Keywords: SERC; NZP; STRI
Abstract: Plant traits-the morphological, anatomical, physiological, biochemical and phenological characteristics of plants-determine how plants respond to environmental factors, affect other trophic levels, and influence ecosystem properties and their benefits and detriments to people. Plant trait data thus represent the basis for a vast area of research spanning from evolutionary biology, community and functional ecology, to biodiversity conservation, ecosystem and landscape management, restoration, biogeography and earth system modelling. Since its foundation in 2007, the TRY database of plant traits has grown continuously. It now provides unprecedented data coverage under an open access data policy and is the main plant trait database used by the research community worldwide. Increasingly, the TRY database also supports new frontiers of trait-based plant research, including the identification of data gaps and the subsequent mobilization or measurement of new data. To support this development, in this article we evaluate the extent of the trait data compiled in TRY and analyse emerging patterns of data coverage and representativeness. Best species coverage is achieved for categorical traits-almost complete coverage for 'plant growth form'. However, most traits relevant for ecology and vegetation modelling are characterized by continuous intraspecific variation and trait–environmental relationships. These traits have to be measured on individual plants in their respective environment. Despite unprecedented data coverage, we observe a humbling lack of completeness and representativeness of these continuous traits in many aspects. We, therefore, conclude that reducing data gaps and biases in the TRY database remains a key challenge and requires a coordinated approach to data mobilization and trait measurements. This can only be achieved in collaboration with other initiatives.
Response of tropical and subtropical chthamalid barnacles to increasing substrate temperaturesLeal, InêsFlores, Augusto A. V.Archambault, PhilippeCollin, RachelTremblay, Ré2020DOI: info:10.1016/j.jembe.2019.151281Journal of experimental marine biology and ecologyv. 5240022-0981
Leal, Inês, Flores, Augusto A. V., Archambault, Philippe, Collin, Rachel, and Tremblay, Ré. 2020. "Response of tropical and subtropical chthamalid barnacles to increasing substrate temperatures." Journal of experimental marine biology and ecology 524:https://doi.org/10.1016/j.jembe.2019.151281
ID: 153843
Type: article
Authors: Leal, Inês; Flores, Augusto A. V.; Archambault, Philippe; Collin, Rachel; Tremblay, Ré
Keywords: STRI
Abstract: Marine invertebrates inhabiting low-latitude shores are exposed to both extremely hot and highly variable conditions. Further changes in habitat temperature may pose a risk to these populations. In this study, we examined the early life stage response of foundation species from subtropical and tropical latitudes to changes in the thermal habitat. We manipulated the color of settling surfaces for barnacle species that occupy the same ecological niche, Chthamalus bisinuatus (southeastern coast of Brazil), and Chthamalus proteus (northwestern coast of Panama). Using an in situ experimental approach, we assessed: 1) the combined effects of temperature and other abiotic parameters, and 2) the significance of larval and early juvenile traits in determining post-settlement performance for the first three days of benthic life. We found that the biological outcomes differed for the two species, according to the local thermal regime experienced. C. bisinuatus juveniles responded positively to higher temperatures, through a positive interaction between larval energetic condition, post-metamorphic size and temperature on their initial growth. Conversely, C. proteus juveniles grew slower at higher temperatures, although a positive effect of size at settlement was found. Continuous air- and sea-surface temperature measurements revealed that the tropical chthamalids experienced temperatures ≈6 °C higher than their subtropical congeners, as well as harsher thermal conditions during aerial exposure. This suggests that manipulated temperatures likely exceeded the tolerance of the Caribbean population, already living on the edge of their thermal threshold. Our findings contribute to the understanding of the factors underpinning the critical post-settlement events that drive patterns of abundance and distribution of barnacles in low-latitude systems.
Isolation of Inositol Hexakisphosphate from Soils by Alkaline Extraction and Hypobromite OxidationTurner, Benjamin L.Miller, Gregory J.2020DOI: info:10.1007/978-1-0716-0167-9_3Inositol Phosphates: Methods and Protocols3946New York, NYSpringer US39–46978-1-07-160167-9
Turner, Benjamin L. 2020. "Isolation of Inositol Hexakisphosphate from Soils by Alkaline Extraction and Hypobromite Oxidation." in Inositol Phosphates: Methods and Protocols, edited by Miller, Gregory J., 39–46. Methods in Molecular Biology. New York, NY: Springer US. https://doi.org/10.1007/978-1-0716-0167-9_3
ID: 153439
Type: chapter
Authors: Turner, Benjamin L.
Keywords: STRI
Abstract: Inositol hexakisphosphates are extracted from soil in strong alkali and isolated from other organic phosphates by hypobromite oxidation. The procedure yields the four stereoisomeric forms of inositol hexakisphosphate in a form suitable for spectroscopic or chromatographic identification.
Documenting decapod biodiversity in the Caribbean from DNA barcodes generated during field training in taxonomyVenera-Pontó-n, DEVenera-Pontón, Dagoberto E.Driskell, Amy C.De Grave, SammyFelder, Darryl L.Scioli, Justin A.Collin, Rachel2020DOI: info:10.3897/BDJ.8.e47333Biodiversity Data Journalv. 8Article e47333Sofia, BulgariaPensoft PublishersArticle e473331314-2836
Venera-Pontón, Dagoberto E., Driskell, Amy C., De Grave, Sammy, Felder, Darryl L., Scioli, Justin A., and Collin, Rachel. 2020. "Documenting decapod biodiversity in the Caribbean from DNA barcodes generated during field training in taxonomy
Venera-Pontó-n, DE." Biodiversity Data Journal 8:Article e47333. https://doi.org/10.3897/BDJ.8.e47333
ID: 153943
Type: article
Authors: Venera-Pontón, Dagoberto E.; Driskell, Amy C.; De Grave, Sammy; Felder, Darryl L.; Scioli, Justin A.; Collin, Rachel
Keywords: STRI; NMNH; NH-Invertebrate Zoology
Abstract: DNA barcoding is a useful tool to identify the components of mixed or bulk samples, as well as to determine individuals that lack morphologically diagnostic features. However, the reference database of DNA barcode sequences is particularly sparsely populated for marine invertebrates and for tropical taxa. We used samples collected as part of two field courses, focused on graduate training in taxonomy and systematics, to generate DNA sequences of the barcode fragments of cytochrome c oxidase subunit I (COI) and mitochondrial ribosomal 16S genes for 447 individuals, representing at least 129 morphospecies of decapod crustaceans. COI sequences for 36% (51/140) of the species and 16S sequences for 26% (37/140) of the species were new to GenBank. Automatic Barcode Gap Discovery identified 140 operational taxonomic units (OTUs) which largely coincided with the morphospecies delimitations. Barcode identifications (i.e. matches to identified sequences) were especially useful for OTUs within Synalpheus, a group that is notoriously difficult to identify and rife with cryptic species, a number of which we could not identify to species, based on morphology. Non-concordance between morphospecies and barcode OTUs also occurred in a few cases of suspected cryptic species. As mitochondrial pseudogenes are particularly common in decapods, we investigate the potential for this dataset to include pseudogenes and discuss the utility of these sequences as species identifiers (i.e. barcodes). These results demonstrate that material collected and identified during training activities can provide useful incidental barcode reference samples for under-studied taxa.
Importancia médica de la flora y la fauna PanameñaLópez, Omar R.Mainieri, Milagro2019237Panamá, República de PanamáSecretaría Nacional de Ciencia, Tecnología e Innovación (SENACYT)237978-9962-680-19-2
López, Omar R. and Mainieri, Milagro. , eds. 2019. Importancia médica de la flora y la fauna Panameña. Primera Edición ed. Panamá, República de Panamá: Secretaría Nacional de Ciencia, Tecnología e Innovación (SENACYT).
ID: 152581
Type: book
Keywords: STRI
The physiological response of ‘Hass’ avocado to salinity as influenced by rootstockAcosta-Rangel, AleydaLi, RuiCelis, NydiaSuárez, Donald L.Santiago, Louis S.Arpaia, Mary LuMauk, Peggy A.2019DOI: info:10.1016/j.scienta.2019.108629Scientia Horticulturaev. 2561086291086290304-4238
Acosta-Rangel, Aleyda, Li, Rui, Celis, Nydia, Suárez, Donald L., Santiago, Louis S., Arpaia, Mary Lu, and Mauk, Peggy A. 2019. "The physiological response of ‘Hass’ avocado to salinity as influenced by rootstock." Scientia Horticulturae 256:108629. https://doi.org/10.1016/j.scienta.2019.108629
ID: 152259
Type: article
Authors: Acosta-Rangel, Aleyda; Li, Rui; Celis, Nydia; Suárez, Donald L.; Santiago, Louis S.; Arpaia, Mary Lu; Mauk, Peggy A.
Keywords: STRI
Abstract: With increasing demands on both potable and agricultural water supplies, drought, and extreme temperatures worldwide, agricultural production is challenged with reduced water availability and lower water quality. Salinity, which is associated with low water quality is a critical issue for California avocado growers and, coupled with avocado root rot, threatens the long-term sustainability of the industry since avocados (Persea americana Mill.) are known to be extremely salt sensitive. Salt tolerance of the ‘Hass’ variety, the most commonly grown scion in California, is influenced by rootstock. We investigated ‘Hass’ scions grafted onto three different avocado rootstocks under control (irrigation using water with EC = 0.65 dS/m) and salinity (irrigation using water with EC = 1.5 dS/m) conditions. Results indicated that, compared to control conditions, the irrigation of avocado trees using water with EC = 1.5 dS/m increased canopy damage by 44%, reduced survival by half of the trees tested, and caused yield losses of more than 63%. Avocado leaves visibly damaged by the salinity treatment (named as partially burned or PB leaves) experienced photoinhibition, and reduction of photosynthetic rate and water-use efficiency, suggesting that the poor performance in carbon assimilation contributed to reductions in yield and increases in mortality. The salinity treatment did not cause water stress and the poor performance of treated trees was attributable to chloride accumulation previously reported. Leaf carbon isotopic composition was affected in trees under salinity treatment by increasing the values of δ13C however, this affect was nor correlated with water-use efficiency. Overall, ‘R0.05’, ‘PP40’ and ‘Dusa’ performed similarly and, considering the conditions of the experiment and the intrinsic susceptibility of avocado trees to salinity, were superior to all other rootstocks tested. Future screenings for salinity tolerant rootstocks are required to improve yield when poor quality soil or water is used. Overall, our results showed a coordination between the physiological performance, health and productivity of the ‘Hass’ scion and how these parameters were negatively affected by salinity.
Assessing ecological infrastructure investmentsAdamowicz, WiktorCalderon-Etter, LauraEntem, AliciaFenichel, Eli P.Hall, Jefferson S.Lloyd-Smith, PatrickOgden, Fred L.Regina, Jason A.Rad, Mani RouhiStallard, Robert F.2019DOI: info:10.1073/pnas.1802883116Proceedings of the National Academy of Sciencesv. 116No. 12525452615254–52610027-8424
Adamowicz, Wiktor, Calderon-Etter, Laura, Entem, Alicia, Fenichel, Eli P., Hall, Jefferson S., Lloyd-Smith, Patrick, Ogden, Fred L., Regina, Jason A., Rad, Mani Rouhi, and Stallard, Robert F. 2019. "Assessing ecological infrastructure investments." Proceedings of the National Academy of Sciences 116 (12):5254–5261. https://doi.org/10.1073/pnas.1802883116
ID: 150713
Type: article
Authors: Adamowicz, Wiktor; Calderon-Etter, Laura; Entem, Alicia; Fenichel, Eli P.; Hall, Jefferson S.; Lloyd-Smith, Patrick; Ogden, Fred L.; Regina, Jason A.; Rad, Mani Rouhi; Stallard, Robert F.
Keywords: STRI
Abstract: Conventional markets can underprovide ecosystem services. Deliberate creation of a market for ecosystem services e.g., a payments for ecosystem services (PES) scheme] can close the gap. The new ecosystem service market alters behaviors and quantities of ecosystem service provided and reveals prices for the ecosystems service: a market-clearing equilibrium. Assessing the potential for PES programs, which often act as ecological infrastructure investment mechanisms, requires forecasting the market-clearing equilibrium. Forecasting the equilibrium is complicated, especially at relevant social and ecological scales. It requires greater disciplinary integration than valuing ecosystem services or computing the marginal cost of making a land-use change to produce a service. We conduct an ex ante benefit–cost assessment and forecast market-clearing prices and quantities for ecological infrastructure investment contracts in the Panama Canal Watershed. The Panama Canal Authority could offer contracts to private farmers to change land use to increase dry-season water flow and reduce sedimentation. A feasible voluntary contracting system yields a small program of about 1,840 ha of land conversion in a 279,000-ha watershed and generates a 4.9 benefit–cost ratio. Physical and social constraints limit market supply and scalability. Service delays, caused by lags between the time payments must be made and the time services stemming from ecosystem change are realized, hinder program feasibility. Targeting opportunities raise the benefit–cost ratio but reduce the hectares likely to be converted. We compare and contrast our results with prior state-of-the-art assessments on this system.
Do lianas shape ant communities in an early successional tropical forest?Adams, Benjamin J.Gora, Evan M.Breugel, Michiel vanEstrada-Villegas, SergioSchnitzer, Stefan A.Hall, Jefferson S.Yanoviak, Stephen P.2019DOI: info:10.1111/btp.12709Biotropica191–90006-3606
Adams, Benjamin J., Gora, Evan M., Breugel, Michiel van, Estrada-Villegas, Sergio, Schnitzer, Stefan A., Hall, Jefferson S., and Yanoviak, Stephen P. 2019. "Do lianas shape ant communities in an early successional tropical forest?." Biotropica 1–9. https://doi.org/10.1111/btp.12709
ID: 152689
Type: article
Authors: Adams, Benjamin J.; Gora, Evan M.; Breugel, Michiel van; Estrada-Villegas, Sergio; Schnitzer, Stefan A.; Hall, Jefferson S.; Yanoviak, Stephen P.
Keywords: STRI
Abstract: Almost half of lowland tropical forests are at various stages of regeneration following deforestation or fragmentation. Changes in tree communities along successional gradients have predictable bottom-up effects on consumers. Liana (woody vine) assemblages also change with succession, but their effects on animal succession remain unexplored. Here we used a large-scale liana removal experiment across a forest successional chronosequence (7–31 years) to determine the importance of lianas to ant community structure. We conducted 1,088 surveys of ants foraging on and living in trees using tree trunk baiting and hand-collecting techniques at 34 paired forest plots, half of which had all lianas removed. Ant species composition, β-diversity, and species richness were not affected by liana removal; however, ant species co-occurrence (the coexistence of two or more species in a single tree) was more frequent in control plots, where lianas were present, versus removal plots. Forest stand age had a larger effect on ant community structure than the presence of lianas. Mean ant species richness in a forest plot increased by ca. 10% with increasing forest age across the 31-year chronosequence. Ant surveys from forest >20 years old included more canopy specialists and fewer ground-nesting ant species versus those from forests <20 years old. Consequently, lianas had a minimal effect on arboreal ant communities in this early successional forest, where rapidly changing tree community structure was more important to ant species richness and composition.
Connectivity explains local ant community structure in a Neotropical forest canopy: a large-scale experimental approachAdams, Benjamin J.Schnitzer, Stefan A.Yanoviak, Stephen P.2019DOI: info:10.1002/ecy.2673Ecologyv. 100No. 6Ecological Society of America0012-9658
Adams, Benjamin J., Schnitzer, Stefan A., and Yanoviak, Stephen P. 2019. "Connectivity explains local ant community structure in a Neotropical forest canopy: a large-scale experimental approach." Ecology 100 (6):https://doi.org/10.1002/ecy.2673
ID: 151812
Type: article
Authors: Adams, Benjamin J.; Schnitzer, Stefan A.; Yanoviak, Stephen P.
Keywords: STRI
Abstract: Understanding how habitat structure and resource availability affect local species distributions is a key goal of community ecology. Where habitats occur as a mosaic, variation in connectivity among patches influences both local species richness and composition, and connectivity is a key conservation concern in fragmented landscapes. Similarly, availability of limiting resources frequently determines species co-existence or exclusion. For primarily cursorial arthropods like ants, gaps between neighboring trees are a significant barrier to movement through the forest canopy. Competition for limited resources such as nest sites also promotes antagonistic interactions. Lianas (woody vines) connect normally isolated neighboring tree crowns and often have hollow stems inhabited by ants. We used two large-scale liana removal experiments to determine how connectivity and nest site availability provided by lianas affect arboreal ant species richness, species composition, and β-diversity in a lowland tropical forest in Panama. Removing lianas from a tree crown reduced ant species richness up to 35%, and disproportionately affected species that require large foraging areas. Adding artificial connectivity to trees mitigated the effects of liana removal. Ant colonization of artificial nests was higher (73% occupied) in trees without lianas vs. trees with lianas (28% occupied). However, artificial nests typically were colonized by existing polydomous, resident ant species. As a result, nest addition did not affect ant community structure. Collectively, these results indicate that lianas are important to the maintenance of arboreal ant diversity specifically by providing connectivity among neighboring tree crowns. Anticipated increases in liana abundance in this forest could increase the local (tree-level) species richness of arboreal ants, with a compositional bias toward elevating the density of broad-ranging specialist predators. This article is protected by copyright. All rights reserved.
Tempo and mode of allopatric divergence in the weakly electric fish Sternopygus dariensis in the Isthmus of PanamaAguilar, CelestinoMiller, Matthew J.Loaiza, Jose R.González, RigobertoKrahe, RüdigerDe León, Luis F.2019DOI: info:10.1038/s41598-019-55336-yScientific Reportsv. 9Article 18828London, EnglandSpringer NatureArticle 188282045-2322
Aguilar, Celestino, Miller, Matthew J., Loaiza, Jose R., González, Rigoberto, Krahe, Rüdiger, and De León, Luis F. 2019. "Tempo and mode of allopatric divergence in the weakly electric fish Sternopygus dariensis in the Isthmus of Panama." Scientific Reports 9:Article 18828. https://doi.org/10.1038/s41598-019-55336-y
ID: 153604
Type: article
Authors: Aguilar, Celestino; Miller, Matthew J.; Loaiza, Jose R.; González, Rigoberto; Krahe, Rüdiger; De León, Luis F.
Keywords: STRI
Abstract: Spatial isolation is one of the main drivers of allopatric speciation, but the extent to which spatially-segregated populations accumulate genetic differences relevant to speciation is not always clear. We used data from ultraconserved elements (UCEs) and whole mitochondrial genomes (i.e., mitogenomes) to explore genetic variation among allopatric populations of the weakly electric fish Sternopygus dariensis across the Isthmus of Panama. We found strong genetic divergence between eastern and western populations of S. dariensis. Over 77% of the UCE loci examined were differentially fixed between populations, and these loci appear to be distributed across the species' genome. Population divergence occurred within the last 1.1 million years, perhaps due to global glaciation oscillations during the Pleistocene. Our results are consistent with a pattern of genetic differentiation under strict geographic isolation, and suggest the presence of incipient allopatric species within S. dariensis. Genetic divergence in S. dariensis likely occurred in situ, long after the closure of the Isthmus of Panama. Our study highlights the contribution of spatial isolation and vicariance to promoting rapid diversification in Neotropical freshwater fishes. The study of spatially-segregated populations within the Isthmus of Panama could reveal how genetic differences accumulate as allopatric speciation proceeds.
Bromeliads going batty: pollinator partitioning among sympatric chiropterophilous BromeliaceaeAguilar-Rodríguez, Pedro AdriánTschapka, MarcoGarcía-Franco, José G.Krömer, ThorstenMacSwiney G, ,M.Cristina2019DOI: info:10.1093/aobpla/plz014AoB PLANTSv. 11No. 21201–202041-2851
Aguilar-Rodríguez, Pedro Adrián, Tschapka, Marco, García-Franco, José G., Krömer, Thorsten, and MacSwiney G, ,M.Cristina. 2019. "Bromeliads going batty: pollinator partitioning among sympatric chiropterophilous Bromeliaceae." AoB PLANTS 11 (2):1–20. https://doi.org/10.1093/aobpla/plz014
ID: 151538
Type: article
Authors: Aguilar-Rodríguez, Pedro Adrián; Tschapka, Marco; García-Franco, José G.; Krömer, Thorsten; MacSwiney G, ,M.Cristina
Keywords: STRI
Abstract: Pollinators can be a limited resource and natural selection should favour differences in phenotypic characteristics to reduce competition among plants. Bats are important pollinators of many Neotropical plants, including the Bromeliaceae; however, the pre-pollination mechanisms for isolation among sympatric bat-pollinated bromeliads are unknown. Here, we studied the mechanisms for reproductive segregation between Pitcairnia recurvata, Pseudalcantarea viridiflora, Werauhia noctiflorens and W. nutans. The study was conducted at Los Tuxtlas Biosphere Reserve, in Veracruz, Mexico We carried out ex situ and in situ manual pollination treatments to determine the breeding system by assessing fruiting and seedling success and sampled bat visitors using mist-nets and infrared cameras. We determined the nocturnal nectar production pattern, estimating the energetic content of this reward. All four bromeliads are self-compatible, but only P. recurvata appears to require pollinators, because the physical separation between anthers and stigma prevents self-pollination, it is xenogamous and presents a strictly nocturnal anthesis. The bats Anoura geoffroyi, Glossophaga soricina and Hylonycteris underwoodi are probable pollinators of three of the studied bromeliads. We did not record any animal visiting the fourth species. The flowering season of each species is staggered throughout the year, with minimal overlap, and the floral morphology segregates the locations on the body of the bat where the pollen is deposited. The most abundant nectar per flower is provided by P. viridiflora, but P. recurvata offers the best reward per hectare, considering the density of flowering plants. Staggered flowering, different pollen deposition sites on the body of the pollinator and differences in the reward offered may have evolved to reduce the competitive costs of sharing pollinators while providing a constant supply of food to maintain a stable nectarivorous bat community.
Persistent effects of fragmentation on tropical rainforest canopy structure after 20 yr of isolationAlmeida, Danilo R. A.Stark, Scott C.Schietti, JulianaCamargo, Jose L. C.Amazonas, NinoTGorgens, Eric B.Rosa, Diogo M.Smith, Marielle N.Valbuena, RubenSaleska, ScottAndrade, AnaMesquita, RitaLaurance, Susan G.Laurance, William F.Lovejoy, Thomas E.Broadbent, Eben N.Shimabukuro, Yosio E.Parker, Geoffrey G.Lefsky, MichaelSilva, Carlos A.Brancalion, Pedro H. S.2019DOI: info:10.1002/eap.1952Ecological Applicationsv. 29No. 6e01952Ecological Society of Americae019521051-0761
Almeida, Danilo R. A., Stark, Scott C., Schietti, Juliana, Camargo, Jose L. C., Amazonas, NinoT, Gorgens, Eric B., Rosa, Diogo M., Smith, Marielle N., Valbuena, Ruben, Saleska, Scott, Andrade, Ana, Mesquita, Rita, Laurance, Susan G., Laurance, William F., Lovejoy, Thomas E., Broadbent, Eben N., Shimabukuro, Yosio E., Parker, Geoffrey G., Lefsky, Michael, Silva, Carlos A., and Brancalion, Pedro H. S. 2019. "Persistent effects of fragmentation on tropical rainforest canopy structure after 20 yr of isolation." Ecological Applications 29 (6):e01952. https://doi.org/10.1002/eap.1952
ID: 151543
Type: article
Authors: Almeida, Danilo R. A.; Stark, Scott C.; Schietti, Juliana; Camargo, Jose L. C.; Amazonas, NinoT; Gorgens, Eric B.; Rosa, Diogo M.; Smith, Marielle N.; Valbuena, Ruben; Saleska, Scott; Andrade, Ana; Mesquita, Rita; Laurance, Susan G.; Laurance, William F.; Lovejoy, Thomas E.; Broadbent, Eben N.; Shimabukuro, Yosio E.; Parker, Geoffrey G.; Lefsky, Michael; Silva, Carlos A.; Brancalion, Pedro H. S.
Keywords: STRI; SERC
Abstract: Assessing the persistent impacts of fragmentation on above ground structure of tropical forests is essential to understanding the consequences of land use change for carbon storage and other ecosystem functions. We investigated the influence of edge distance and fragment size on canopy structure, aboveground woody biomass (AGB), and AGB turnover in the Biological Dynamics of Forest Fragments Project (BDFFP) in central Amazon, Brazil, after 22+ years of fragment isolation, by combining canopy variables collected with Portable Canopy profiling lidar and airborne laser scanning surveys with long-term forest inventories. Forest height decreased by 30% at edges of large fragments (> 10 ha) and interiors of small fragments (< 3 ha). In larger fragments, canopy height was reduced up to 40 m from edges. Leaf area density profiles differed near edges: the density of understory vegetation was higher and midstory vegetation lower, consistent with canopy reorganization via increased regeneration of pioneers following post-fragmentation mortality of large trees. However, canopy openness and leaf area index remained similar to control plots throughout fragments, while canopy spatial heterogeneity was generally lower at edges. AGB stocks and fluxes were positively related to canopy height and negatively related to spatial heterogeneity. Other forest structure variables typically used to assess the ecological impacts of fragmentation (basal area, density of individuals, and density of pioneer trees) were also related to lidar-derived canopy surface variables. Canopy reorganization through the replacement of edge-sensitive species by disturbance-tolerant ones may have mitigated the biomass loss effects due to fragmentation observed in the earlier years of BDFFP. Lidar technology offered novel insights and observational scales for analysis of the ecological impacts of fragmentation on forest structure and function, specifically aboveground biomass storage. This article is protected by copyright. All rights reserved.
Plant killing by Neotropical acacia ants: ecology, decision-making, and head morphologyAmador-Vargas, Sabrina2019DOI: info:10.1111/btp.12695Biotropica181–80006-3606
Amador-Vargas, Sabrina. 2019. "Plant killing by Neotropical acacia ants: ecology, decision-making, and head morphology." Biotropica 1–8. https://doi.org/10.1111/btp.12695
ID: 152250
Type: article
Authors: Amador-Vargas, Sabrina
Keywords: STRI
Abstract: Mutualistic species often associate with several partners that vary in the benefits provided. In some protective ant–plant mutualisms, ants vary in the extent at which they kill neighboring vegetation. Particularly, in acacia ants (Pseudomyrmex), the area around the host tree that ants keep free from vegetation (“clearings”) vary depending on the species. This study assessed whether interspecific variation in clearing size corresponds to workers biting on plant tissue of different thickness. As expected, workers from species making the largest clearings bit more often on thicker plant tissues than workers from species making smaller clearings. Because head shape affects mandible force, I also assessed whether pruning on thick tissue in mutualistic ant species or being a predator in non-mutualistic species correlated with broader heads, which yield stronger mandible force. The species with the broader heads were non-mutualistic predators or mutualistic pruners of thick tissues, which suggest that pruning neighboring vegetation in non-predatory species demands force even when the ants do not kill prey with their mandibles. The findings reveal that clearing size variation in mutualistic ant partners of plants can also be observed at the level of individual decision-making processes among workers, and suggest that head morphology could be a trait under selection in protective ant–plant mutualisms. Abstract in Spanish is available with online material.
Acacia trees with parasitic ants have fewer and less spacious spines than trees with mutualistic antsAmador-Vargas, SabrinaDyer, JaredArnold, NatalieCavanaugh, LeahSánchez-Brenes, Elena2019DOI: info:10.1007/s00114-019-1647-4The Science of Naturev. 107No. 1331432-1904
Amador-Vargas, Sabrina, Dyer, Jared, Arnold, Natalie, Cavanaugh, Leah, and Sánchez-Brenes, Elena. 2019. "Acacia trees with parasitic ants have fewer and less spacious spines than trees with mutualistic ants." The Science of Nature 107 (1):3. https://doi.org/10.1007/s00114-019-1647-4
ID: 153605
Type: article
Authors: Amador-Vargas, Sabrina; Dyer, Jared; Arnold, Natalie; Cavanaugh, Leah; Sánchez-Brenes, Elena
Keywords: STRI
Abstract: Obligate ant-defended plants provide food and shelter in exchange for protection against herbivores. Mesoamerican acacia trees have an obligate ant mutualism, but parasitic non-defending ants can also nest on the tree. We assessed whether rewards corresponded to ant defense within a plant species. As we expected, we found that parasite-inhabited trees had fewer swollen spines than ant-defended trees. Spine diameter was smaller in parasite-inhabited plants, but there were no differences in spine length, suggesting that spines serve as mechanical protection against herbivory. Parasite-inhabited plants may have reduced rewards because of plant differences when establishing, a plastic response to limited resources, or differential energy allocation when sensing the lack of defense.
Erosion of phylogenetic diversity in Neotropical bat assemblages: findings from a whole-ecosystem fragmentation experimentAninta, Sabhrina G.Rocha, RicardoLópez-Baucells, AdriàMeyer, Christoph F. J.2019DOI: info:10.1101/534057bioRxiv1351–35bioRxiv
Aninta, Sabhrina G., Rocha, Ricardo, López-Baucells, Adrià, and Meyer, Christoph F. J. 2019. "Erosion of phylogenetic diversity in Neotropical bat assemblages: findings from a whole-ecosystem fragmentation experiment." bioRxiv 1–35. https://doi.org/10.1101/534057
ID: 150608
Type: article
Authors: Aninta, Sabhrina G.; Rocha, Ricardo; López-Baucells, Adrià; Meyer, Christoph F. J.
Keywords: STRI
Abstract: The traditional focus on taxonomic diversity metrics for investigating species responses to habitat loss and fragmentation has limited our understanding on how biodiversity is impacted by habitat modification. This is particularly true for taxonomic groups such as bats which exhibit species-specific responses. Here, we investigate phylogenetic alpha and beta diversity of Neotropical bat assemblages across two environmental gradients, one in habitat quality and one in habitat amount. We surveyed bats in 39 sites located across a whole-ecosystem fragmentation experiment in the Brazilian Amazon, representing a gradient of habitat quality (interior-edge-matrix, hereafter IEM) in both continuous forest and forest fragments of different sizes (1, 10, and 100 ha; forest size gradient). For each habitat category, we quantified alpha and beta phylogenetic diversity, then used linear models and cluster analysis to explore how forest area and IEM gradient affect phylogenetic diversity. We found that the secondary forest matrix harboured significantly lower total evolutionary history compared to the fragment interiors, especially the 1 ha fragments, containing bat assemblages with more closely related species. Forest fragments ≥10 ha had levels of phylogenetic richness similar to continuous forest, suggesting that large fragments retain considerable levels of evolutionary history. The edge and matrix adjacent to large fragments tend to have closely related lineages nonetheless, suggesting phylogenetic homogenization in these IEM gradient categories. Thus, despite the high mobility of bats, fragmentation still induces considerable levels of erosion of phylogenetic diversity, suggesting that the various evolutionary history might not be able to persist in present-day human-modified landscapes.
The eastern Pacific species of Salmoneus Holthuis, 1955, with description of a remarkable new species from Las Perlas Archipelago, Panama (Malacostraca: Decapoda: Alpheidae)Anker, Arthur2019DOI: info:10.11646/zootaxa.4651.1.8Zootaxav. 4651No. 1125140125–1401175-5326
Anker, Arthur. 2019. "The eastern Pacific species of Salmoneus Holthuis, 1955, with description of a remarkable new species from Las Perlas Archipelago, Panama (Malacostraca: Decapoda: Alpheidae)." Zootaxa 4651 (1):125–140. https://doi.org/10.11646/zootaxa.4651.1.8
ID: 152174
Type: article
Authors: Anker, Arthur
Keywords: STRI
Abstract: The present study deals with five species of the alpheid shrimp genus Salmoneus Holthuis, 1955 from the tropical eastern Pacific. One of them is new to science and is described as Salmoneus tiburon sp. nov. The new species is presently known only from the Las Perlas Archipelago in Panama and can be distinguished from all other congeners by the dentition on the cutting edges of the major chela, with some dactylar teeth reminiscent of shark teeth. It is also one of the largest species of the genus, with the carapace length of both type specimens surpassing 8.0 mm. Salmoneus serratidigitus (Coutière, 1897), a species with an ample distribution across the Indo-Pacific, is recorded for the first time from the Pacific coast of Panama and is confirmed from Colombia. Salmoneus malagensis Anker & Lazarus, 2015, previously known only from Bahía Málaga in Colombia, is recorded from Panama’s Azuero Peninsula. The remaining two species, S. excavatus Anker, 2011 and S. alvarezi Anker & Lazarus, 2015, are recorded regionally from Las Perlas Archipelago in Panama and Playa Tarcoles in Costa Rica, both for the first time since their original descriptions. An identification key to the five currently known eastern Pacific species of Salmoneus is provided. However, several immature and/or incomplete specimens herein preliminarily reported as Salmoneus spp., as well photographic records from southern California, USA, indicate the presence of further undescribed species in the eastern Pacific.
Alpheus perlas , sp. nov., a new infaunal snapping shrimp from the Pacific coast of Panama (Malacostraca: Decapoda: Alpheidae)Anker, ArthurPachelle, Paulo P. G.2019DOI: info:10.11646/zootaxa.4651.1.5Zootaxav. 4651No. 1758475–841175-5326
Anker, Arthur and Pachelle, Paulo P. G. 2019. "Alpheus perlas , sp. nov., a new infaunal snapping shrimp from the Pacific coast of Panama (Malacostraca: Decapoda: Alpheidae)." Zootaxa 4651 (1):75–84. https://doi.org/10.11646/zootaxa.4651.1.5
ID: 152188
Type: article
Authors: Anker, Arthur; Pachelle, Paulo P. G.
Keywords: STRI
Abstract: A new snapping shrimp, Alpheus perlas sp. nov., is described based on a single complete male specimen collected on a shallow mudflat at Casayeta Island in the Las Perlas Archipelago, Gulf of Panama. The new species belongs to the large A. edwardsii (Audouin, 1821) species group characterised essentially by the presence of two notches on the major chela palm, with the dorsal notch extending posteriorly on the mesial surface. Within the eastern Pacific members of the A. edwardsii group, A. perlas sp. nov. appears to be morphologically closest to A. latus Kim & Abele, 1988 and A. burukovskyi Anker & Pachelle, 2015. Alpheus perlas sp. nov. does not seem to be specially adapted for digging and may be inquiline of a larger burrowing host, which currently remains unknown.
Calculation of narrower confidence intervals for tree mortality rates when we know nothing but the location of the death/survival eventsArellano, Gabriel2019DOI: info:10.1002/ece3.5495Ecology and Evolution1101–102045-7758
Arellano, Gabriel. 2019. "Calculation of narrower confidence intervals for tree mortality rates when we know nothing but the location of the death/survival events." Ecology and Evolution 1–10. https://doi.org/10.1002/ece3.5495
ID: 152177
Type: article
Authors: Arellano, Gabriel
Keywords: STRI
Abstract: Many ecological applications, like the study of mortality rates, require the estimation of proportions and confidence intervals for them. The traditional way of doing this applies the binomial distribution, which describes the outcome of a series of Bernoulli trials. This distribution assumes that observations are independent and the probability of success is the same for all the individual observations. Both assumptions are obviously false in many cases. I show how to apply bootstrap and the Poisson binomial distribution (a generalization of the binomial distribution) to the estimation of proportions. Any information at the individual level would result in better (narrower) confidence intervals around the estimation of proportions. As a case study, I applied this method to the calculation of mortality rates in a forest plot of tropical trees in Lambir Hills National Park, Malaysia. I calculated central estimates and 95% confidence intervals for species-level mortality rates for 1,007 tree species. I used a very simple model of spatial dependence in survival to estimate individual-level risk of mortality. The results obtained by accounting for heterogeneity in individual-level risk of mortality were comparable to those obtained with the binomial distribution in terms of central estimates, but the precision increased in virtually all cases, with an average reduction in the width of the confidence interval of 20%. Spatial information allows the estimation of individual-level probabilities of survival, and this increases the precision in the estimates of mortality rates. The general method described here, with modifications, could be applied to reduce uncertainty in the estimation of proportions related to any spatially structured phenomenon with two possible outcomes. More sophisticated approaches can yield better estimates of individual-level mortality and thus narrower confidence intervals.
Crown damage and the mortality of tropical treesArellano, GabrielMedina, Nagore G.Tan, SylvesterMohamad, MohizahDavies, Stuart J.2019DOI: info:10.1111/nph.15381New Phytologistv. 221No. 1169179Hoboken, New JerseyWiley169–1790028-646X
Arellano, Gabriel, Medina, Nagore G., Tan, Sylvester, Mohamad, Mohizah, and Davies, Stuart J. 2019. "Crown damage and the mortality of tropical trees." New Phytologist 221 (1):169–179. https://doi.org/10.1111/nph.15381
ID: 148506
Type: article
Authors: Arellano, Gabriel; Medina, Nagore G.; Tan, Sylvester; Mohamad, Mohizah; Davies, Stuart J.
Keywords: STRI
Abstract: What causes individual tree death in tropical forests remains a major gap in our understanding of the biology of tropical trees and leads to significant uncertainty in predicting global carbon cycle dynamics. We measured individual characteristics (diameter at breast height, wood density, growth rate, crown illumination and crown form) and environmental conditions (soil fertility and habitat suitability) for 26 425 trees ≥ 10 cm diameter at breast height belonging to 416 species in a 52-ha plot in Lambir Hills National Park, Malaysia. We used structural equation models to investigate the relationships among the different factors and tree mortality. Crown form (a proxy for mechanical damage and other stresses) and prior growth were the two most important factors related to mortality. The effect of all variables on mortality (except habitat suitability) was substantially greater than expected by chance. Tree death is the result of interactions between factors, including direct and indirect effects. Crown form/damage and prior growth mediated most of the effect of tree size, wood density, fertility and habitat suitability on mortality. Large-scale assessment of crown form or status may result in improved prediction of individual tree death at the landscape scale.