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Showing 1-20 of about 71 results.
Carbon cycling in mature and regrowth forests globallyAnderson-Teixeira, Kristina J.Herrmann, ValentineBanbury Morgan, RebeccaBond-Lamberty, BenCook-Patton, Susan C.Ferson, Abigail E.Muller-Landau, Helene C.Wang, Maria M. H.DOI: info:10.1088/1748-9326/abed01v. 16No. 5
Anderson-Teixeira, Kristina J., Herrmann, Valentine, Banbury Morgan, Rebecca, Bond-Lamberty, Ben, Cook-Patton, Susan C., Ferson, Abigail E., Muller-Landau, Helene C., and Wang, Maria M. H. 2021. "Carbon cycling in mature and regrowth forests globally." Environmental Research Letters 16 (5):https://doi.org/10.1088/1748-9326/abed01
ID: 159526
Type: article
Authors: Anderson-Teixeira, Kristina J.; Herrmann, Valentine; Banbury Morgan, Rebecca; Bond-Lamberty, Ben; Cook-Patton, Susan C.; Ferson, Abigail E.; Muller-Landau, Helene C.; Wang, Maria M. H.
Abstract: Forests are major components of the global carbon (C) cycle and thereby strongly influence atmospheric carbon dioxide (CO2) and climate. However, efforts to incorporate forests into climate models and CO2 accounting frameworks have been constrained by a lack of accessible, global-scale synthesis on how C cycling varies across forest types and stand ages. Here, we draw from the Global Forest Carbon Database, ForC, to provide a macroscopic overview of C cycling in the world's forests, giving special attention to stand age-related variation. Specifically, we use 11 923 ForC records for 34 C cycle variables from 865 geographic locations to characterize ensemble C budgets for four broad forest types-tropical broadleaf evergreen, temperate broadleaf, temperate conifer, and boreal. We calculate means and standard deviations for both mature and regrowth (age < 100 years) forests and quantify trends with stand age in regrowth forests for all variables with sufficient data. C cycling rates generally decreased from tropical to temperate to boreal in both mature and regrowth forests, whereas C stocks showed less directional variation. Mature forest net ecosystem production did not differ significantly among biomes. The majority of flux variables, together with most live biomass pools, increased significantly with the logarithm of stand age. As climate change accelerates, understanding and managing the carbon dynamics of forests is critical to forecasting, mitigation, and adaptation. This comprehensive and synthetic global overview of C stocks and fluxes across biomes and stand ages contributes to these efforts.
Long-Term Impacts of Invasive Insects and Pathogens on Composition, Biomass, and Diversity of Forests in Virginia's Blue Ridge MountainsAnderson-Teixeira, Kristina J.Herrmann, ValentineCass, Wendy B.Williams, Alan B.Paull, Stephen J.Gonzalez-Akre, Erika B.Helcoski, RyanTepley, Alan J.Bourg, Norman A.Cosma, Christopher T.Ferson, Abigail E.Kittle, CarolineMeakem, VictoriaMcGregor, Ian R.Prestipino, Maya N.Scott, Michael K.Terrell, Alyssa R.Alonso, AlfonsoDallmeier, FranciscoMcShea, William J.DOI: info:10.1007/s10021-020-00503-wv. 2489–105
Anderson-Teixeira, Kristina J., Herrmann, Valentine, Cass, Wendy B., Williams, Alan B., Paull, Stephen J., Gonzalez-Akre, Erika B., Helcoski, Ryan, Tepley, Alan J., Bourg, Norman A., Cosma, Christopher T., Ferson, Abigail E., Kittle, Caroline, Meakem, Victoria, McGregor, Ian R., Prestipino, Maya N., Scott, Michael K., Terrell, Alyssa R., Alonso, Alfonso, Dallmeier, Francisco, and McShea, William J. 2021. "Long-Term Impacts of Invasive Insects and Pathogens on Composition, Biomass, and Diversity of Forests in Virginia's Blue Ridge Mountains." Ecosystems 24:89– 105. https://doi.org/10.1007/s10021-020-00503-w
ID: 155476
Type: article
Authors: Anderson-Teixeira, Kristina J.; Herrmann, Valentine; Cass, Wendy B.; Williams, Alan B.; Paull, Stephen J.; Gonzalez-Akre, Erika B.; Helcoski, Ryan; Tepley, Alan J.; Bourg, Norman A.; Cosma, Christopher T.; Ferson, Abigail E.; Kittle, Caroline; Meakem, Victoria; McGregor, Ian R.; Prestipino, Maya N.; Scott, Michael K.; Terrell, Alyssa R.; Alonso, Alfonso; Dallmeier, Francisco; McShea, William J.
Abstract: Exotic forest insects and pathogens (EFIP) have become regular features of temperate forest ecosystems, yet we lack a long-term perspective on their net impacts on tree mortality, carbon sequestration, and tree species diversity. Here, we analyze 3 decades (1987-2019) of forest monitoring data from the Blue Ridge Mountains ecoregion in eastern North America, including 67 plots totaling 29.4 ha, along with a historical survey from 1939. Over the past century, EFIP substantially affected at least eight tree genera. Tree host taxa had anomalously high mortality rates (>= 6% year(-1) from 2008 to 2019 vs 1.4% year(-1) for less-impacted taxa). Following the arrival of EFIP, affected taxa declined in abundance (- 25 to - 100%) and live aboveground biomass (AGB; - 13 to - 100%) within our monitoring plots. We estimate that EFIP were responsible for 21-29% of ecosystem AGB loss through mortality (- 87 g m(-2) year(-1)) from 1991 to 2013 across 66 sites. Over a century, net AGB loss among affected species totaled roughly 6.6-10 kg m(-2). The affected host taxa accounted for 23-29% of genera losses at the plot scale, with mixed net effects on alpha-diversity. Several taxa were lost from our monitoring plots but not completely extirpated from the region. Despite these losses, both total AGB and alpha-diversity were largely recovered through increases in sympatric genera. These results indicate that EFIP have been an important force shaping forest composition, carbon cycling, and diversity. At the same time, less-affected taxa in these relatively diverse temperate forests have conferred substantial resilience with regard to biomass and alpha-diversity.
Global patterns of forest autotrophic carbon fluxesBanbury Morgan, RebeccaHerrmann, ValentineKunert, NorbertBond-Lamberty, BenMuller-Landau, Helene C.Anderson-Teixeira, Kristina J.DOI: info:10.1111/gcb.15574
Banbury Morgan, Rebecca, Herrmann, Valentine, Kunert, Norbert, Bond-Lamberty, Ben, Muller-Landau, Helene C., and Anderson-Teixeira, Kristina J. 2021. "Global patterns of forest autotrophic carbon fluxes." Global Change Biology https://doi.org/10.1111/gcb.15574
ID: 158908
Type: article
Authors: Banbury Morgan, Rebecca; Herrmann, Valentine; Kunert, Norbert; Bond-Lamberty, Ben; Muller-Landau, Helene C.; Anderson-Teixeira, Kristina J.
Abstract: Carbon (C) fixation, allocation, and metabolism by trees set the basis for energy and material flows in forest ecosystems and define their interactions with Earth's changing climate. However, while many studies have considered variation in productivity with latitude and climate, we lack a cohesive synthesis on how forest carbon fluxes vary globally with respect to climate and one another. Here, we draw upon 1,319 records from the Global Forest Carbon Database, representing all major forest types and the nine most significant autotrophic carbon fluxes, to comprehensively review how annual C cycling in mature, undisturbed forests varies with latitude and climate on a global scale. Across all flux variables analyzed, rates of C cycling decreased continuously with absolute latitude-a finding that confirms multiple previous studies and contradicts the idea that net primary productivity of temperate forests rivals that of tropical forests. C flux variables generally displayed similar trends across latitude and multiple climate variables, with no differences in allocation detected at this global scale. Temperature variables in general, and mean annual temperature or temperature seasonality in particular, were the best single predictors of C flux, explaining 19%-71% of variation in the C fluxes analyzed. The effects of temperature were modified by moisture availability, with C flux reduced under hot and dry conditions and sometimes under very high precipitation. Annual C fluxes increased with growing season length and were also influenced by growing season climate. These findings clarify how forest C flux varies with latitude and climate on a global scale. In an era when forests will play a critical yet uncertain role in shaping Earth's rapidly changing climate, our synthesis provides a foundation for understanding global patterns in forest C cycling.
ForestGEO: Understanding forest diversity and dynamics through a global observatory networkDavies, Stuart J.Abiem, IverenAbu Salim, KamariahAguilar, SalomonAllen, DavidAlonso, AlfonsoAnderson-Teixeira, KristinaAndrade, AnaArellano, GabrielAshton, Peter S.Baker, Patrick J.Baker, Matthew E.Baltzer, Jennifer L.Basset, YvesBissiengou, PulcherieBohlman, StephanieBourg, Norman A.Brockelman, Warren Y.Bunyavejchewin, SarayudhBurslem, David F. R. P.Cao, MinCardenas, DaironChang, Li-WanChang-Yang, Chia-HaoChao, Kuo-JungChao, Wei-ChunChapman, HazelChen, Yu-YunChisholm, Ryan A.Chu, ChengjinChuyong, GeorgeClay, KeithComita, Liza S.Condit, RichardCordell, SusanDattaraja, Handanakere S.de Oliveira, Alexandre Adalardoden Ouden, JanDetto, MatteoDick, ChristopherDu, XiaojunDuque, AlvaroEdiriweera, SisiraEllis, Erle C.Obiang, Nestor Laurier EngoneEsufali, ShameemaEwango, Corneille E. N.Fernando, Edwino S.Filip, JonahFischer, Gunter A.Foster, RobinGiambelluca, ThomasGiardina, ChristianGilbert, Gregory S.Gonzalez-Akre, ErikaGunatilleke, I. A. U. N.Gunatilleke, C. V. S.Hao, ZhanqingHau, Billy C. H.He, FangliangNi, HongweiHowe, Robert W.Hubbell, Stephen P.Huth, AndreasInman-Narahari, FaithItoh, AkiraJanik, DavidJansen, Patrick A.Jiang, MingxiJohnson, Daniel J.Jones, F. AndrewKanzaki, MamoruKenfack, DavidKiratiprayoon, SomboonKral, KamilKrizel, LaurenLao, SuzanneLarson, Andrew J.Li, YideLi, XiankunLitton, Creighton M.Liu, YuLiu, ShirongLum, Shawn K. Y.Luskin, Matthew S.Lutz, James A.Hong Truong LuuMa, KepingMakana, Jean-RemyMalhi, YadvinderMartin, AdamMcCarthy, CalyMcMahon, Sean M.McShea, William J.Memiaghe, HerveMi, XiangchengMitre, DavidMohamad, MohizahMonks, LoganMuller-Landau, Helene C.Musili, Paul M.Myers, Jonathan A.Nathalang, AnuttaraNgo, Kang MinNorden, NataliaNovotny, VojtechO'Brien, Michael J.Orwig, DavidOstertag, RebeccaPapathanassiou, KonstantinosParker, Geoffrey G.Perez, RolandoPerfecto, IvettePhillips, Richard P.Pongpattananurak, NantachaiPretzsch, HansRen, HaiboReynolds, GlenRodriguez, Lillian J.Russo, Sabrina E.Sack, LawrenSang, WeiguoShue, JessicaSingh, AnudeepSong, Guo-Zhang M.Sukumar, RamanSun, I-FangSuresh, Hebbalalu S.Swenson, Nathan G.Tan, SylvesterThomas, Sean C.Thomas, DuncanThompson, JillTurner, Benjamin L.Uowolo, AmandaUriarte, MariaValencia, RenatoVandermeer, JohnVicentini, AlbertoVisser, MarcoVrska, TomasWang, XugaoWang, XihuaWeiblen, George D.Whitfeld, Timothy J. S.Wolf, Y.Wright, S. JosephXu, HanYao, Tze LeongYap, Sandra L.Ye, WanhuiYu, MingjianZhang, MinhuaZhu, DaoguangZhu, LiZimmerman, Jess K.Zuleta, DanielDOI: info:10.1016/j.biocon.2020.108907v. 253108907–108907
Davies, Stuart J., Abiem, Iveren, Abu Salim, Kamariah, Aguilar, Salomon, Allen, David, Alonso, Alfonso, Anderson-Teixeira, Kristina, Andrade, Ana, Arellano, Gabriel, Ashton, Peter S., Baker, Patrick J., Baker, Matthew E., Baltzer, Jennifer L., Basset, Yves, Bissiengou, Pulcherie, Bohlman, Stephanie, Bourg, Norman A., Brockelman, Warren Y., Bunyavejchewin, Sarayudh, Burslem, David F. R. P., Cao, Min, Cardenas, Dairon, Chang, Li-Wan, Chang-Yang, Chia-Hao, Chao, Kuo-Jung et al. 2021. "ForestGEO: Understanding forest diversity and dynamics through a global observatory network." Biological Conservation 253:108907– 108907. https://doi.org/10.1016/j.biocon.2020.108907
ID: 158553
Type: article
Authors: Davies, Stuart J.; Abiem, Iveren; Abu Salim, Kamariah; Aguilar, Salomon; Allen, David; Alonso, Alfonso; Anderson-Teixeira, Kristina; Andrade, Ana; Arellano, Gabriel; Ashton, Peter S.; Baker, Patrick J.; Baker, Matthew E.; Baltzer, Jennifer L.; Basset, Yves; Bissiengou, Pulcherie; Bohlman, Stephanie; Bourg, Norman A.; Brockelman, Warren Y.; Bunyavejchewin, Sarayudh; Burslem, David F. R. P.; Cao, Min; Cardenas, Dairon; Chang, Li-Wan; Chang-Yang, Chia-Hao; Chao, Kuo-Jung; Chao, Wei-Chun; Chapman, Hazel; Chen, Yu-Yun; Chisholm, Ryan A.; Chu, Chengjin; Chuyong, George; Clay, Keith; Comita, Liza S.; Condit, Richard; Cordell, Susan; Dattaraja, Handanakere S.; de Oliveira, Alexandre Adalardo; den Ouden, Jan; Detto, Matteo; Dick, Christopher; Du, Xiaojun; Duque, Alvaro; Ediriweera, Sisira; Ellis, Erle C.; Obiang, Nestor Laurier Engone; Esufali, Shameema; Ewango, Corneille E. N.; Fernando, Edwino S.; Filip, Jonah; Fischer, Gunter A.; Foster, Robin; Giambelluca, Thomas; Giardina, Christian; Gilbert, Gregory S.; Gonzalez-Akre, Erika; Gunatilleke, I. A. U. N.; Gunatilleke, C. V. S.; Hao, Zhanqing; Hau, Billy C. H.; He, Fangliang; Ni, Hongwei; Howe, Robert W.; Hubbell, Stephen P.; Huth, Andreas; Inman-Narahari, Faith; Itoh, Akira; Janik, David; Jansen, Patrick A.; Jiang, Mingxi; Johnson, Daniel J.; Jones, F. Andrew; Kanzaki, Mamoru; Kenfack, David; Kiratiprayoon, Somboon; Kral, Kamil; Krizel, Lauren; Lao, Suzanne; Larson, Andrew J.; Li, Yide; Li, Xiankun; Litton, Creighton M.; Liu, Yu; Liu, Shirong; Lum, Shawn K. Y.; Luskin, Matthew S.; Lutz, James A.; Hong Truong Luu; Ma, Keping; Makana, Jean-Remy; Malhi, Yadvinder; Martin, Adam; McCarthy, Caly; McMahon, Sean M.; McShea, William J.; Memiaghe, Herve; Mi, Xiangcheng; Mitre, David; Mohamad, Mohizah; Monks, Logan; Muller-Landau, Helene C.; Musili, Paul M.; Myers, Jonathan A.; Nathalang, Anuttara; Ngo, Kang Min; Norden, Natalia; Novotny, Vojtech; O'Brien, Michael J.; Orwig, David; Ostertag, Rebecca; Papathanassiou, Konstantinos; Parker, Geoffrey G.; Perez, Rolando; Perfecto, Ivette; Phillips, Richard P.; Pongpattananurak, Nantachai; Pretzsch, Hans; Ren, Haibo; Reynolds, Glen; Rodriguez, Lillian J.; Russo, Sabrina E.; Sack, Lawren; Sang, Weiguo; Shue, Jessica; Singh, Anudeep; Song, Guo-Zhang M.; Sukumar, Raman; Sun, I-Fang; Suresh, Hebbalalu S.; Swenson, Nathan G.; Tan, Sylvester; Thomas, Sean C.; Thomas, Duncan; Thompson, Jill; Turner, Benjamin L.; Uowolo, Amanda; Uriarte, Maria; Valencia, Renato; Vandermeer, John; Vicentini, Alberto; Visser, Marco; Vrska, Tomas; Wang, Xugao; Wang, Xihua; Weiblen, George D.; Whitfeld, Timothy J. S.; Wolf, Y.; Wright, S. Joseph; Xu, Han; Yao, Tze Leong; Yap, Sandra L.; Ye, Wanhui; Yu, Mingjian; Zhang, Minhua; Zhu, Daoguang; Zhu, Li; Zimmerman, Jess K.; Zuleta, Daniel
Abstract: ForestGEO is a network of scientists and long-term forest dynamics plots (FDPs) spanning the Earth's major forest types. ForestGEO's mission is to advance understanding of the diversity and dynamics of forests and to strengthen global capacity for forest science research. ForestGEO is unique among forest plot networks in its large-scale plot dimensions, censusing of all stems >= 1 cm in diameter, inclusion of tropical, temperate and boreal forests, and investigation of additional biotic (e.g., arthropods) and abiotic (e.g., soils) drivers, which together provide a holistic view of forest functioning. The 71 FDPs in 27 countries include approximately 7.33 million living trees and about 12,000 species, representing 20% of the world's known tree diversity. With >1300 published papers, ForestGEO researchers have made significant contributions in two fundamental areas: species coexistence and diversity, and ecosystem functioning. Specifically, defining the major biotic and abiotic controls on the distribution and coexistence of species and functional types and on variation in species' demography has led to improved understanding of how the multiple dimensions of forest diversity are structured across space and time and how this diversity relates to the processes controlling the role of forests in the Earth system. Nevertheless, knowledge gaps remain that impede our ability to predict how forest diversity and function will respond to climate change and other stressors. Meeting these global research challenges requires major advances in standardizing taxonomy of tropical species, resolving the main drivers of forest dynamics, and integrating plot-based ground and remote sensing observations to scale up estimates of forest diversity and function, coupled with improved predictive models. However, they cannot be met without greater financial commitment to sustain the long-term research of ForestGEO and other forest plot networks, greatly expanded scientific capacity across the world's forested nations, and increased collaboration and integration among research networks and disciplines addressing forest science.
A restructured and updated global soil respiration database (SRDB-V5)Jian, JinshiVargas, RodrigoAnderson-Teixeira, KristinaStell, EmmaHerrmann, ValentineHorn, MercedesKholod, NazarManzon, JasonMarchesi, RebeccaParedes, DarlinBond-Lamberty, BenDOI: info:10.5194/essd-13-255-2021
Jian, Jinshi, Vargas, Rodrigo, Anderson-Teixeira, Kristina, Stell, Emma, Herrmann, Valentine, Horn, Mercedes, Kholod, Nazar, Manzon, Jason, Marchesi, Rebecca, Paredes, Darlin, and Bond-Lamberty, Ben. 2021. "A restructured and updated global soil respiration database (SRDB-V5)." Earth System Science Data https://doi.org/10.5194/essd-13-255-2021
ID: 158691
Type: article
Authors: Jian, Jinshi; Vargas, Rodrigo; Anderson-Teixeira, Kristina; Stell, Emma; Herrmann, Valentine; Horn, Mercedes; Kholod, Nazar; Manzon, Jason; Marchesi, Rebecca; Paredes, Darlin; Bond-Lamberty, Ben
Abstract: Field-measured soil respiration (R-S, the soil-to-atmosphere CO2 flux) observations were compiled into a global soil respiration database (SRDB) a decade ago, a resource that has been widely used by the biogeochemistry community to advance our understanding of R-S dynamics. Novel carbon cycle science questions require updated and augmented global information with better interoperability among datasets. Here, we restructured and updated the global R-S database to version SRDB-V5. The updated version has all previous fields revised for consistency and simplicity, and it has several new fields to include ancillary information (e.g., R-S measurement time, collar insertion depth, collar area). The new SRDB-V5 includes published papers through 2017 (800 independent studies), where total observations increased from 6633 in SRDB-V4 to 10 366 in SRDB-V5. The SRDB-V5 features more R-S data published in the Russian and Chinese scientific literature and has an improved global spatio-temporal coverage and improved global climate space representation. We also restructured the database so that it has stronger interoperability with other datasets related to carbon cycle science. For instance, linking SRDB-V5 with an hourly timescale global soil respiration database (HGRsD) and a community database for continuous soil respiration (COSORE) enables researchers to explore new questions. The updated SRDB-V5 aims to be a data framework for the scientific community to share seasonal to annual field R-S measurements, and it provides opportunities for the biogeochemistry community to better understand the spatial and temporal variability in R-S, its components, and the overall carbon cycle. The database can be downloaded at https://github.com/bpbond/srdb and will be made available in the Oak Ridge National Laboratory's Distributed Active Archive Center (ORNL DAAC). All data and code to reproduce the results in this study can be found at https://doi.org /10.5281/zenodo.3876443 (Jian and Bond-Lamberty, 2020).
Leaf turgor loss point shapes local and regional distributions of evergreen but not deciduous tropical treesKunert, NorbertZailaa, JosephHerrmann, ValentineMuller-Landau, Helene C.Wright, S. JosephPerez, RolandoMcMahon, Sean M.Condit, Richard C.Hubbell, Steven P.Sack, LawrenDavies, Stuart J.Anderson-Teixeira, Kristina J.DOI: info:10.1111/nph.17187
Kunert, Norbert, Zailaa, Joseph, Herrmann, Valentine, Muller-Landau, Helene C., Wright, S. Joseph, Perez, Rolando, McMahon, Sean M., Condit, Richard C., Hubbell, Steven P., Sack, Lawren, Davies, Stuart J., and Anderson-Teixeira, Kristina J. 2021. "Leaf turgor loss point shapes local and regional distributions of evergreen but not deciduous tropical trees." New Phytologist https://doi.org/10.1111/nph.17187
ID: 158537
Type: article
Authors: Kunert, Norbert; Zailaa, Joseph; Herrmann, Valentine; Muller-Landau, Helene C.; Wright, S. Joseph; Perez, Rolando; McMahon, Sean M.; Condit, Richard C.; Hubbell, Steven P.; Sack, Lawren; Davies, Stuart J.; Anderson-Teixeira, Kristina J.
Abstract: The effects of climate change on tropical forests will depend on how diverse tropical tree species respond to drought. Current distributions of evergreen and deciduous tree species across local and regional moisture gradients reflect their ability to tolerate drought stress, and might be explained by functional traits. We measured leaf water potential at turgor loss (i.e. 'wilting point'; pi(tlp)), wood density (WD) and leaf mass per area (LMA) on 50 of the most abundant tree species in central Panama. We then tested their ability to explain distributions of evergreen and deciduous species within a 50 ha plot on Barro Colorado Island and across a 70 km rainfall gradient spanning the Isthmus of Panama. Among evergreen trees, species with lower pi(tlp) were associated with drier habitats, with pi(tlp) explaining 28% and 32% of habitat association on local and regional scales, respectively, greatly exceeding the predictive power of WD and LMA. In contrast, pi(tlp) did not predict habitat associations among deciduous species. Across spatial scales, pi(tlp) is a useful indicator of habitat preference for tropical tree species that retain their leaves during periods of water stress, and holds the potential to predict vegetation responses to climate change.
Patterns and mechanisms of spatial variation in tropical forest productivity, woody residence time, and biomassMuller-Landau, Helene C.Cushman, K. C.Arroyo, Eva E.Cano, Isabel MartinezAnderson-Teixeira, Kristina J.Backiel, BogumilaDOI: info:10.1111/nph.17084v. 229No. 63065–3087
Muller-Landau, Helene C., Cushman, K. C., Arroyo, Eva E., Cano, Isabel Martinez, Anderson-Teixeira, Kristina J., and Backiel, Bogumila. 2021. "Patterns and mechanisms of spatial variation in tropical forest productivity, woody residence time, and biomass." New Phytologist 229 (6):3065– 3087. https://doi.org/10.1111/nph.17084
ID: 157929
Type: article
Authors: Muller-Landau, Helene C.; Cushman, K. C.; Arroyo, Eva E.; Cano, Isabel Martinez; Anderson-Teixeira, Kristina J.; Backiel, Bogumila
Abstract: Tropical forests vary widely in biomass carbon (C) stocks and fluxes even after controlling for forest age. A mechanistic understanding of this variation is critical to accurately predicting responses to global change. We review empirical studies of spatial variation in tropical forest biomass, productivity and woody residence time, focusing on mature forests. Woody productivity and biomass decrease from wet to dry forests and with elevation. Within lowland forests, productivity and biomass increase with temperature in wet forests, but decrease with temperature where water becomes limiting. Woody productivity increases with soil fertility, whereas residence time decreases, and biomass responses are variable, consistent with an overall unimodal relationship. Areas with higher disturbance rates and intensities have lower woody residence time and biomass. These environmental gradients all involve both direct effects of changing environments on forest C fluxes and shifts in functional composition - including changing abundances of lianas - that substantially mitigate or exacerbate direct effects. Biogeographic realms differ significantly and importantly in productivity and biomass, even after controlling for climate and biogeochemistry, further demonstrating the importance of plant species composition. Capturing these patterns in global vegetation models requires better mechanistic representation of water and nutrient limitation, plant compositional shifts and tree mortality.
Chemical Similarity of Co-occurring Trees Decreases With Precipitation and Temperature in North American ForestsSedio, Brian E.Spasojevic, Marko J.Myers, Jonathan A.Wright, S. JosephPerson, Maria D.Chandrasekaran, HamssikaDwenger, Jack H.Prechi, Maria LauraLopez, Christian A.Allen, David N.Anderson-Teixeira, Kristina J.Baltzer, Jennifer L.Bourg, Norman A.Castillo, Buck T.Day, Nicola J.Dewald-Wang, EmilyDick, Christopher W.James, Timothy Y.Kueneman, Jordan G.LaManna, JosephLutz, James A.McGregor, Ian R.McMahon, Sean M.Parker, Geoffrey G.Parker, John D.Vandermeer, John H.DOI: info:10.3389/fevo.2021.679638v. 9
Sedio, Brian E., Spasojevic, Marko J., Myers, Jonathan A., Wright, S. Joseph, Person, Maria D., Chandrasekaran, Hamssika, Dwenger, Jack H., Prechi, Maria Laura, Lopez, Christian A., Allen, David N., Anderson-Teixeira, Kristina J., Baltzer, Jennifer L., Bourg, Norman A., Castillo, Buck T., Day, Nicola J., Dewald-Wang, Emily, Dick, Christopher W., James, Timothy Y., Kueneman, Jordan G., LaManna, Joseph, Lutz, James A., McGregor, Ian R., McMahon, Sean M., Parker, Geoffrey G., Parker, John D. et al. 2021. "Chemical Similarity of Co-occurring Trees Decreases With Precipitation and Temperature in North American Forests." Frontiers in Ecology and Evolution 9:https://doi.org/10.3389/fevo.2021.679638
ID: 159756
Type: article
Authors: Sedio, Brian E.; Spasojevic, Marko J.; Myers, Jonathan A.; Wright, S. Joseph; Person, Maria D.; Chandrasekaran, Hamssika; Dwenger, Jack H.; Prechi, Maria Laura; Lopez, Christian A.; Allen, David N.; Anderson-Teixeira, Kristina J.; Baltzer, Jennifer L.; Bourg, Norman A.; Castillo, Buck T.; Day, Nicola J.; Dewald-Wang, Emily; Dick, Christopher W.; James, Timothy Y.; Kueneman, Jordan G.; LaManna, Joseph; Lutz, James A.; McGregor, Ian R.; McMahon, Sean M.; Parker, Geoffrey G.; Parker, John D.; Vandermeer, John H.
Abstract: Plant diversity varies immensely over large-scale gradients in temperature, precipitation, and seasonality at global and regional scales. This relationship may be driven in part by climatic variation in the relative importance of abiotic and biotic interactions to the diversity and composition of plant communities. In particular, biotic interactions may become stronger and more host specific with increasing precipitation and temperature, resulting in greater plant species richness in wetter and warmer environments. This hypothesis predicts that the many defensive compounds found in plants' metabolomes should increase in richness and decrease in interspecific similarity with precipitation, temperature, and plant diversity. To test this prediction, we compared patterns of chemical and morphological trait diversity of 140 woody plant species among seven temperate forests in North America representing 16.2 degrees C variation in mean annual temperature (MAT), 2,115 mm variation in mean annual precipitation (MAP), and from 10 to 68 co-occurring species. We used untargeted metabolomics methods based on data generated with liquid chromatography-tandem mass spectrometry to identify, classify, and compare 13,480 unique foliar metabolites and to quantify the metabolomic similarity of species in each community with respect to the whole metabolome and each of five broad classes of metabolites. In addition, we compiled morphological trait data from existing databases and field surveys for three commonly measured traits (specific leaf area [SLA], wood density, and seed mass) for comparison with foliar metabolomes. We found that chemical defense strategies and growth and allocation strategies reflected by these traits largely represented orthogonal axes of variation. In addition, functional dispersion of SLA increased with MAP, whereas functional richness of wood density and seed mass increased with MAT. In contrast, chemical similarity of co-occurring species decreased with both MAT and MAP, and metabolite richness increased with MAT. Variation in metabolite richness among communities was positively correlated with species richness, but variation in mean chemical similarity was not. Our results are consistent with the hypothesis that plant metabolomes play a more important role in community assembly in wetter and warmer climates, even at temperate latitudes, and suggest that metabolomic traits can provide unique insight to studies of trait-based community assembly.
Consequences of spatial patterns for coexistence in species-rich plant communitiesWiegand, ThorstenWang, XugaoAnderson-Teixeira, Kristina J.Bourg, Norman A.Cao, MinCi, XiuqinDavies, Stuart J.Hao, ZhanqingHowe, Robert W.Kress, W. JohnLian, JuyuLi, JieLin, LuxiangLin, YichingMa, KepingMcShea, WilliamMi, XiangchengSu, Sheng-HsinSun, I-FangWolf, AmyYe, WanhuiHuth, AndreasDOI: info:10.1038/s41559-021-01440-0
Wiegand, Thorsten, Wang, Xugao, Anderson-Teixeira, Kristina J., Bourg, Norman A., Cao, Min, Ci, Xiuqin, Davies, Stuart J., Hao, Zhanqing, Howe, Robert W., Kress, W. John, Lian, Juyu, Li, Jie, Lin, Luxiang, Lin, Yiching, Ma, Keping, McShea, William, Mi, Xiangcheng, Su, Sheng-Hsin, Sun, I-Fang, Wolf, Amy, Ye, Wanhui, and Huth, Andreas. 2021. "Consequences of spatial patterns for coexistence in species-rich plant communities." Nature Ecology & Evolution https://doi.org/10.1038/s41559-021-01440-0
ID: 159522
Type: article
Authors: Wiegand, Thorsten; Wang, Xugao; Anderson-Teixeira, Kristina J.; Bourg, Norman A.; Cao, Min; Ci, Xiuqin; Davies, Stuart J.; Hao, Zhanqing; Howe, Robert W.; Kress, W. John; Lian, Juyu; Li, Jie; Lin, Luxiang; Lin, Yiching; Ma, Keping; McShea, William; Mi, Xiangcheng; Su, Sheng-Hsin; Sun, I-Fang; Wolf, Amy; Ye, Wanhui; Huth, Andreas
Abstract: Ecology cannot yet fully explain why so many tree species coexist in natural communities such as tropical forests. A major difficulty is linking individual-level processes to community dynamics. We propose a combination of tree spatial data, spatial statistics and dynamical theory to reveal the relationship between spatial patterns and population-level interaction coefficients and their consequences for multispecies dynamics and coexistence. Here we show that the emerging population-level interaction coefficients have, for a broad range of circumstances, a simpler structure than their individual-level counterparts, which allows for an analytical treatment of equilibrium and stability conditions. Mechanisms such as animal seed dispersal, which result in clustering of recruits that is decoupled from parent locations, lead to a rare-species advantage and coexistence of otherwise neutral competitors. Linking spatial statistics with theories of community dynamics offers new avenues for explaining species coexistence and calls for rethinking community ecology through a spatial lens. Tree spatial data, spatial statistics and dynamical theory reveal the relationship between spatial patterns and population-level interaction coefficients and their consequences for multispecies dynamics and coexistence.
Mapping carbon accumulation potential from global natural forest regrowthCook-Patton, SusanLeavitt, Sara M.Gibbs, DavidHarris, Nancy L.Lister, KristineAnderson-Teixeira, KristinaBriggs, Russell D.Chazdon, Robin L.Crowther, Thomas W.Ellis, Peter W.Griscom, Heather P.Herrmann, ValentineHoll, Karen D.Houghton, Richard A.Larrosa, CeciliaLomax, GuyLucas, RichardMadsen, PalleMalhi, YadvinderPaquette, AlainParker, John D.Paul, KerynRouth, DevinRoxburgh, StephenSaatchi, Sassanvan den Hoogen, JohanWalker, Wayne S.Wheeler, Charlotte E.Wood, Stephen A.Xu, LiangGriscom, Bronson W.DOI: info:10.1038/s41586-020-2686-xv. 585No. 7826545–550
Cook-Patton, Susan, Leavitt, Sara M., Gibbs, David, Harris, Nancy L., Lister, Kristine, Anderson-Teixeira, Kristina, Briggs, Russell D., Chazdon, Robin L., Crowther, Thomas W., Ellis, Peter W., Griscom, Heather P., Herrmann, Valentine, Holl, Karen D., Houghton, Richard A., Larrosa, Cecilia, Lomax, Guy, Lucas, Richard, Madsen, Palle, Malhi, Yadvinder, Paquette, Alain, Parker, John D., Paul, Keryn, Routh, Devin, Roxburgh, Stephen, Saatchi, Sassan et al. 2020. "Mapping carbon accumulation potential from global natural forest regrowth." Nature 585 (7826):545– 550. https://doi.org/10.1038/s41586-020-2686-x
ID: 157060
Type: article
Authors: Cook-Patton, Susan; Leavitt, Sara M.; Gibbs, David; Harris, Nancy L.; Lister, Kristine; Anderson-Teixeira, Kristina; Briggs, Russell D.; Chazdon, Robin L.; Crowther, Thomas W.; Ellis, Peter W.; Griscom, Heather P.; Herrmann, Valentine; Holl, Karen D.; Houghton, Richard A.; Larrosa, Cecilia; Lomax, Guy; Lucas, Richard; Madsen, Palle; Malhi, Yadvinder; Paquette, Alain; Parker, John D.; Paul, Keryn; Routh, Devin; Roxburgh, Stephen; Saatchi, Sassan; van den Hoogen, Johan; Walker, Wayne S.; Wheeler, Charlotte E.; Wood, Stephen A.; Xu, Liang; Griscom, Bronson W.
Temporal population variability in local forest communities has mixed effects on tree species richness across a latitudinal gradientFung, TakChisholm, Ryan A.Anderson-Teixeira, Kristina J.Bourg, NormBrockelman, Warren Y.Bunyavejchewin, SarayudhChang‐Yang, Chia-HaoChitra‐Tarak, RutujaChuyong, GeorgeCondit, RichardDattaraja, Handanakere S.Davies, Stuart J.Ewango, Corneille E. N.Fewless, GaryFletcher, ChristineGunatilleke, C. V. S.Gunatilleke, I. A. U. N.Hao, ZhanqingHogan, J. A.Howe, RobertHsieh, Chang-FuKenfack, DavidLin, YichingMa, KepingMakana, Jean-RemyMcMahon, SeanMcShea, William J.Mi, XiangchengNathalang, AnuttaraOng, Perry S.Parker, GeoffreyRau, E. -PShue, JessicaSu, Sheng-HsinSukumar, RamanSun, I. -FSuresh, Hebbalalu S.Tan, SylvesterThomas, DuncanThompson, JillValencia, RenatoVallejo, Martha I.Wang, XugaoWang, YunquanWijekoon, PushpaWolf, AmyYap, SandraZimmerman, JessDOI: info:10.1111/ele.13412v. 23No. 1160–171
Fung, Tak, Chisholm, Ryan A., Anderson-Teixeira, Kristina J., Bourg, Norm, Brockelman, Warren Y., Bunyavejchewin, Sarayudh, Chang‐Yang, Chia-Hao, Chitra‐Tarak, Rutuja, Chuyong, George, Condit, Richard, Dattaraja, Handanakere S., Davies, Stuart J., Ewango, Corneille E. N., Fewless, Gary, Fletcher, Christine, Gunatilleke, C. V. S., Gunatilleke, I. A. U. N., Hao, Zhanqing, Hogan, J. A., Howe, Robert, Hsieh, Chang-Fu, Kenfack, David, Lin, Yiching, Ma, Keping, Makana, Jean-Remy et al. 2020. "Temporal population variability in local forest communities has mixed effects on tree species richness across a latitudinal gradient." Ecology Letters 23 (1):160– 171. https://doi.org/10.1111/ele.13412
ID: 153274
Type: article
Authors: Fung, Tak; Chisholm, Ryan A.; Anderson-Teixeira, Kristina J.; Bourg, Norm; Brockelman, Warren Y.; Bunyavejchewin, Sarayudh; Chang‐Yang, Chia-Hao; Chitra‐Tarak, Rutuja; Chuyong, George; Condit, Richard; Dattaraja, Handanakere S.; Davies, Stuart J.; Ewango, Corneille E. N.; Fewless, Gary; Fletcher, Christine; Gunatilleke, C. V. S.; Gunatilleke, I. A. U. N.; Hao, Zhanqing; Hogan, J. A.; Howe, Robert; Hsieh, Chang-Fu; Kenfack, David; Lin, Yiching; Ma, Keping; Makana, Jean-Remy; McMahon, Sean; McShea, William J.; Mi, Xiangcheng; Nathalang, Anuttara; Ong, Perry S.; Parker, Geoffrey; Rau, E. -P; Shue, Jessica; Su, Sheng-Hsin; Sukumar, Raman; Sun, I. -F; Suresh, Hebbalalu S.; Tan, Sylvester; Thomas, Duncan; Thompson, Jill; Valencia, Renato; Vallejo, Martha I.; Wang, Xugao; Wang, Yunquan; Wijekoon, Pushpa; Wolf, Amy; Yap, Sandra; Zimmerman, Jess
Abstract: Among the local processes that determine species diversity in ecological communities, fluctuation-dependent mechanisms that are mediated by temporal variability in the abundances of species populations have received significant attention. Higher temporal variability in the abundances of species populations can increase the strength of temporal niche partitioning but can also increase the risk of species extinctions, such that the net effect on species coexistence is not clear. We quantified this temporal population variability for tree species in 21 large forest plots and found much greater variability for higher latitude plots with fewer tree species. A fitted mechanistic model showed that among the forest plots, the net effect of temporal population variability on tree species coexistence was usually negative, but sometimes positive or negligible. Therefore, our results suggest that temporal variability in the abundances of species populations has no clear negative or positive contribution to the latitudinal gradient in tree species richness.
Protecting irrecoverable carbon in Earth's ecosystemsGoldstein, AllieTurner, Will R.Spawn, Seth A.Anderson-Teixeira, Kristina J.Cook-Patton, SusanFargione, JosephGibbs, Holly K.Griscom, BronsonHewson, Jennifer H.Howard, Jennifer F.Ledezma, Juan CarlosPage, SusanKoh, Lian PinRockström, JohanSanderman, JonathanHole, David G.DOI: info:10.1038/s41558-020-0738-8v. 10No. 4287–295
Goldstein, Allie, Turner, Will R., Spawn, Seth A., Anderson-Teixeira, Kristina J., Cook-Patton, Susan, Fargione, Joseph, Gibbs, Holly K., Griscom, Bronson, Hewson, Jennifer H., Howard, Jennifer F., Ledezma, Juan Carlos, Page, Susan, Koh, Lian Pin, Rockström, Johan, Sanderman, Jonathan, and Hole, David G. 2020. "Protecting irrecoverable carbon in Earth's ecosystems." Nature Climate Change 10 (4):287– 295. https://doi.org/10.1038/s41558-020-0738-8
ID: 154881
Type: article
Authors: Goldstein, Allie; Turner, Will R.; Spawn, Seth A.; Anderson-Teixeira, Kristina J.; Cook-Patton, Susan; Fargione, Joseph; Gibbs, Holly K.; Griscom, Bronson; Hewson, Jennifer H.; Howard, Jennifer F.; Ledezma, Juan Carlos; Page, Susan; Koh, Lian Pin; Rockström, Johan; Sanderman, Jonathan; Hole, David G.
Pervasive shifts in forest dynamics in a changing worldMcDowell, Nate G.Allen, Craig D.Anderson-Teixeira, Kristina J.Aukema, Brian H.Bond-Lamberty, BenChini, LouiseClark, James S.Dietze, MichaelGrossiord, CharlotteHanbury-Brown, AdamHurtt, George C.Jackson, Robert B.Johnson, Daniel J.Kueppers, LaraLichstein, Jeremy W.Ogle, KionaPoulter, BenjaminPugh, Thomas A. M.Seidl, RupertTurner, Monica G.Uriarte, MariaWalker, Anthony P.Xu, ChonggangDOI: info:10.1126/science.aaz9463v. 368No. 6494964–+
McDowell, Nate G., Allen, Craig D., Anderson-Teixeira, Kristina J., Aukema, Brian H., Bond-Lamberty, Ben, Chini, Louise, Clark, James S., Dietze, Michael, Grossiord, Charlotte, Hanbury-Brown, Adam, Hurtt, George C., Jackson, Robert B., Johnson, Daniel J., Kueppers, Lara, Lichstein, Jeremy W., Ogle, Kiona, Poulter, Benjamin, Pugh, Thomas A. M., Seidl, Rupert, Turner, Monica G., Uriarte, Maria, Walker, Anthony P., and Xu, Chonggang. 2020. "Pervasive shifts in forest dynamics in a changing world." Science 368 (6494):964– +. https://doi.org/10.1126/science.aaz9463
ID: 155761
Type: article
Authors: McDowell, Nate G.; Allen, Craig D.; Anderson-Teixeira, Kristina J.; Aukema, Brian H.; Bond-Lamberty, Ben; Chini, Louise; Clark, James S.; Dietze, Michael; Grossiord, Charlotte; Hanbury-Brown, Adam; Hurtt, George C.; Jackson, Robert B.; Johnson, Daniel J.; Kueppers, Lara; Lichstein, Jeremy W.; Ogle, Kiona; Poulter, Benjamin; Pugh, Thomas A. M.; Seidl, Rupert; Turner, Monica G.; Uriarte, Maria; Walker, Anthony P.; Xu, Chonggang
Tree height and leaf drought tolerance traits shape growth responses across droughts in a temperate broadleaf forestMcGregor, Ian R.Helcoski, RyanKunert, NorbertTepley, Alan J.Gonzalez‐Akre, Erika B.Herrmann, ValentineZailaa, JosephStovall, Atticus E. L.Bourg, Norman A.McShea, William J.Pederson, NeilSack, LawrenAnderson‐Teixeira, Kristina J.DOI: info:10.1111/nph.16996
McGregor, Ian R., Helcoski, Ryan, Kunert, Norbert, Tepley, Alan J., Gonzalez‐Akre, Erika B., Herrmann, Valentine, Zailaa, Joseph, Stovall, Atticus E. L., Bourg, Norman A., McShea, William J., Pederson, Neil, Sack, Lawren, and Anderson‐Teixeira, Kristina J. 2020. "Tree height and leaf drought tolerance traits shape growth responses across droughts in a temperate broadleaf forest." New Phytologist https://doi.org/10.1111/nph.16996
ID: 157275
Type: article
Authors: McGregor, Ian R.; Helcoski, Ryan; Kunert, Norbert; Tepley, Alan J.; Gonzalez‐Akre, Erika B.; Herrmann, Valentine; Zailaa, Joseph; Stovall, Atticus E. L.; Bourg, Norman A.; McShea, William J.; Pederson, Neil; Sack, Lawren; Anderson‐Teixeira, Kristina J.
Spatial covariance of herbivorous and predatory guilds of forest canopy arthropods along a latitudinal gradientMottl, OndrejFibich, PavelKlimes, PetrVolf, MartinTropek, RobertAnderson-Teixeira, Kristina J.Auga, JohnBlair, ThomasButterill, PhilCarscallen, GraceGonzalez-Akre, ErikaGoodman, AaronKaman, OndrejLamarre, Greg P. A.Libra, MartinLosada, Maria E.Manumbor, MarkusMiller, Scott E.Molem, KennethNichols, GeoffreyPlowman, Nichola S.Redmond, ConorSeifert, Carlo L.Vrana, JanWeiblen, George D.Novotny, VojtechDOI: info:10.1111/ele.13579v. 23No. 101499–1510
Mottl, Ondrej, Fibich, Pavel, Klimes, Petr, Volf, Martin, Tropek, Robert, Anderson-Teixeira, Kristina J., Auga, John, Blair, Thomas, Butterill, Phil, Carscallen, Grace, Gonzalez-Akre, Erika, Goodman, Aaron, Kaman, Ondrej, Lamarre, Greg P. A., Libra, Martin, Losada, Maria E., Manumbor, Markus, Miller, Scott E., Molem, Kenneth, Nichols, Geoffrey, Plowman, Nichola S., Redmond, Conor, Seifert, Carlo L., Vrana, Jan, Weiblen, George D. et al. 2020. "Spatial covariance of herbivorous and predatory guilds of forest canopy arthropods along a latitudinal gradient." Ecology Letters 23 (10):1499– 1510. https://doi.org/10.1111/ele.13579
ID: 156677
Type: article
Authors: Mottl, Ondrej; Fibich, Pavel; Klimes, Petr; Volf, Martin; Tropek, Robert; Anderson-Teixeira, Kristina J.; Auga, John; Blair, Thomas; Butterill, Phil; Carscallen, Grace; Gonzalez-Akre, Erika; Goodman, Aaron; Kaman, Ondrej; Lamarre, Greg P. A.; Libra, Martin; Losada, Maria E.; Manumbor, Markus; Miller, Scott E.; Molem, Kenneth; Nichols, Geoffrey; Plowman, Nichola S.; Redmond, Conor; Seifert, Carlo L.; Vrana, Jan; Weiblen, George D.; Novotny, Vojtech
Abstract: Abstract In arthropod community ecology, species richness studies tend to be prioritised over those investigating patterns of abundance. Consequently, the biotic and abiotic drivers of arboreal arthropod abundance are still relatively poorly known. In this cross-continental study, we employ a theoretical framework in order to examine patterns of covariance among herbivorous and predatory arthropod guilds. Leaf-chewing and leaf-mining herbivores, and predatory ants and spiders, were censused on > 1000 trees in nine 0.1 ha forest plots. After controlling for tree size and season, we found no negative pairwise correlations between guild abundances per plot, suggestive of weak signals of both inter-guild competition and top-down regulation of herbivores by predators. Inter-guild interaction strengths did not vary with mean annual temperature, thus opposing the hypothesis that biotic interactions intensify towards the equator. We find evidence for the bottom-up limitation of arthropod abundances via resources and abiotic factors, rather than for competition and predation.
Vertical stratification of a temperate forest caterpillar community in eastern North AmericaSeifert, Carlo L.Lamarre, Greg P. A.Volf, MartinJorge, Leonardo R.Miller, Scott E.Wagner, David L.Anderson-Teixeira, Kristina J.Novotny, VojtechDOI: info:10.1007/s00442-019-04584-wv. 192501–514
Seifert, Carlo L., Lamarre, Greg P. A., Volf, Martin, Jorge, Leonardo R., Miller, Scott E., Wagner, David L., Anderson-Teixeira, Kristina J., and Novotny, Vojtech. 2020. "Vertical stratification of a temperate forest caterpillar community in eastern North America." Oecologia 192:501– 514. https://doi.org/10.1007/s00442-019-04584-w
ID: 153742
Type: article
Authors: Seifert, Carlo L.; Lamarre, Greg P. A.; Volf, Martin; Jorge, Leonardo R.; Miller, Scott E.; Wagner, David L.; Anderson-Teixeira, Kristina J.; Novotny, Vojtech
Abstract: Vertical niche partitioning might be one of the main driving forces explaining the high diversity of forest ecosystems. However, the forest's vertical dimension has received limited investigation, especially in temperate forests. Thus, our knowledge about how communities are vertically structured remains limited for temperate forest ecosystems. In this study, we investigated the vertical structuring of an arboreal caterpillar community in a temperate deciduous forest of eastern North America. Within a 0.2-ha forest stand, all deciduous trees >= 5 cm diameter at breast height (DBH) were felled and systematically searched for caterpillars. Sampled caterpillars were assigned to a specific stratum (i.e. understory, midstory, or canopy) depending on their vertical position and classified into feeding guild as either exposed feeders or shelter builders (i.e. leaf rollers, leaf tiers, webbers). In total, 3892 caterpillars representing 215 species of butterflies and moths were collected and identified. While stratum had no effect on caterpillar density, feeding guild composition changed significantly with shelter-building caterpillars becoming the dominant guild in the canopy. Species richness and diversity were found to be highest in the understory and midstory and declined strongly in the canopy. Family and species composition changed significantly among the strata; understory and canopy showed the lowest similarity. Food web analyses further revealed an increasing network specialization towards the canopy, caused by an increase in specialization of the caterpillar community. In summary, our study revealed a pronounced stratification of a temperate forest caterpillar community, unveiling a distinctly different assemblage of caterpillars dwelling in the canopy stratum.
Integrating the evidence for a terrestrial carbon sink caused by increasing atmospheric CO2Walker, Anthony P.De Kauwe, Martin G.Bastos, AnaBelmecheri, SoumayaGeorgiou, KaterinaKeeling, RalphMcMahon, Sean M.Medlyn, Belinda E.Moore, David J. P.Norby, Richard J.Zaehle, SönkeAnderson-Teixeira, Kristina J.Battipaglia, GiovannaBrienen, Roel J. W.Cabugao, Kristine G.Cailleret, MaximeCampbell, ElliottCanadell, JosepCiais, PhilippeCraig, Matthew E.Ellsworth, DavidFarquhar, GrahamFatichi, SimoneFisher, Joshua B.Frank, DavidGraven, HeatherGu, LianhongHaverd, VanessaHeilman, KellyHeimann, MartinHungate, Bruce A.Iversen, Colleen M.Joos, FortunatJiang, MingkaiKeenan, Trevor F.Knauer, JürgenKörner, ChristianLeshyk, Victor O.Leuzinger, SebastianLiu, YaoMacBean, NatashaMalhi, YadvinderMcVicar, TimPenuelas, JosepPongratz, JuliaPowell, A. S.Riutta, TerhiSabot, Manon E. B.Schleucher, JuergenSitch, StephenSmith, William K.Sulman, BenjaminTaylor, BentonTerrer, CésarTorn, Margaret S.Treseder, KathleenTrugman, Anna T.Trumbore, Susan E.van Mantgem, Phillip J.Voelker, Steve L.Whelan, Mary E.Zuidema, Pieter A.DOI: info:10.1111/nph.16866
Walker, Anthony P., De Kauwe, Martin G., Bastos, Ana, Belmecheri, Soumaya, Georgiou, Katerina, Keeling, Ralph, McMahon, Sean M., Medlyn, Belinda E., Moore, David J. P., Norby, Richard J., Zaehle, Sönke, Anderson-Teixeira, Kristina J., Battipaglia, Giovanna, Brienen, Roel J. W., Cabugao, Kristine G., Cailleret, Maxime, Campbell, Elliott, Canadell, Josep, Ciais, Philippe, Craig, Matthew E., Ellsworth, David, Farquhar, Graham, Fatichi, Simone, Fisher, Joshua B., Frank, David et al. 2020. "Integrating the evidence for a terrestrial carbon sink caused by increasing atmospheric CO2." The New Phytologist https://doi.org/10.1111/nph.16866
ID: 156767
Type: article
Authors: Walker, Anthony P.; De Kauwe, Martin G.; Bastos, Ana; Belmecheri, Soumaya; Georgiou, Katerina; Keeling, Ralph; McMahon, Sean M.; Medlyn, Belinda E.; Moore, David J. P.; Norby, Richard J.; Zaehle, Sönke; Anderson-Teixeira, Kristina J.; Battipaglia, Giovanna; Brienen, Roel J. W.; Cabugao, Kristine G.; Cailleret, Maxime; Campbell, Elliott; Canadell, Josep; Ciais, Philippe; Craig, Matthew E.; Ellsworth, David; Farquhar, Graham; Fatichi, Simone; Fisher, Joshua B.; Frank, David; Graven, Heather; Gu, Lianhong; Haverd, Vanessa; Heilman, Kelly; Heimann, Martin; Hungate, Bruce A.; Iversen, Colleen M.; Joos, Fortunat; Jiang, Mingkai; Keenan, Trevor F.; Knauer, Jürgen; Körner, Christian; Leshyk, Victor O.; Leuzinger, Sebastian; Liu, Yao; MacBean, Natasha; Malhi, Yadvinder; McVicar, Tim; Penuelas, Josep; Pongratz, Julia; Powell, A. S.; Riutta, Terhi; Sabot, Manon E. B.; Schleucher, Juergen; Sitch, Stephen; Smith, William K.; Sulman, Benjamin; Taylor, Benton; Terrer, César; Torn, Margaret S.; Treseder, Kathleen; Trugman, Anna T.; Trumbore, Susan E.; van Mantgem, Phillip J.; Voelker, Steve L.; Whelan, Mary E.; Zuidema, Pieter A.
Abstract: Atmospheric carbon dioxide concentration (CO2 ]) is increasing, which increases leaf-scale photosynthesis and intrinsic water-use efficiency. These direct responses have the potential to increase plant growth, vegetation biomass, and soil organic matter; transferring carbon from the atmosphere into terrestrial ecosystems (a carbon sink). A substantial global terrestrial carbon sink would slow the rate of CO2 ] increase and thus climate change. However, ecosystem CO2 -responses are complex or confounded by concurrent changes in multiple agents of global change and evidence for a CO2 ]-driven terrestrial carbon sink can appear contradictory. Here we synthesise theory and broad, multi-disciplinary evidence for the effects of increasing CO2 ] (iCO2) on the global terrestrial carbon sink. Evidence suggests a substantial increase in global photosynthesis since pre-industry. Established theory, supported by experiments, indicates that iCO2 is likely responsible for about half of the increase. Global carbon budgeting, atmospheric data, and forest inventories indicate a historical carbon sink, and these apparent iCO2-responses are high in comparison with experiments and theory. Plant mortality and soil carbon iCO2-responses are highly uncertain. In conclusion, a range of evidence supports a positive terrestrial carbon sink in response to iCO2, albeit with uncertain magnitude and strong suggestion of a role for additional agents of global change.
Direct and indirect effects of climate on richness drive the latitudinal diversity gradient in forest treesChu, ChengjinLutz, James A.Kral, KamilVrska, TomasYin, XueMyers, Jonathan A.Abiem, IverenAlonso, AlfonsoBourg, NormBurslem, David F. R. P.Cao, MinChapman, HazelCondit, Richard S.Fang, SuqinFischer, Gunter A.Gao, LianmingHao, ZhanqinHau, Billy C. H.He, QingHector, AndrewHubbell, Stephen P.Jiang, MingxiJin, GuangzeKenfack, DavidLai, JiangshanLi, BuhangLi, XiankunLi, YideLian, JuyuLin, LuxiangLiu, YankunLiu, YuLuo, YahuangMa, KepingMcShea, WilliamMemiaghe, HerveMi, XiangchengNi, MingO'Brien, Michael J.de Oliveira, Alexandre A.Orwig, David A.Parker, Geoffrey G.Qiao, XiujuanRen, HaibaoReynolds, GlenSang, WeiguoShen, GuochunSu, ZhiyaoSui, XinghuaSun, I-FangTian, SongyanWang, BinWang, XihuaWang, XugaoWang, YoushiWeiblen, George D.Wen, ShujunXi, NianxunXiang, WushengXu, HanXu, KunYe, WanhuiZhang, BingweiZhang, JiaxinZhang, XiaotongZhang, YingmingZhu, KaiZimmerman, JessStorch, DavidBaltzer, Jennifer L.Anderson-Teixeira, Kristina J.Mittelbach, Gary G.He, FangliangDOI: info:10.1111/ele.13175v. 22No. 2245–255
Chu, Chengjin, Lutz, James A., Kral, Kamil, Vrska, Tomas, Yin, Xue, Myers, Jonathan A., Abiem, Iveren, Alonso, Alfonso, Bourg, Norm, Burslem, David F. R. P., Cao, Min, Chapman, Hazel, Condit, Richard S., Fang, Suqin, Fischer, Gunter A., Gao, Lianming, Hao, Zhanqin, Hau, Billy C. H., He, Qing, Hector, Andrew, Hubbell, Stephen P., Jiang, Mingxi, Jin, Guangze, Kenfack, David, Lai, Jiangshan et al. 2019. "Direct and indirect effects of climate on richness drive the latitudinal diversity gradient in forest trees." Ecology Letters 22 (2):245– 255. https://doi.org/10.1111/ele.13175
ID: 149947
Type: article
Authors: Chu, Chengjin; Lutz, James A.; Kral, Kamil; Vrska, Tomas; Yin, Xue; Myers, Jonathan A.; Abiem, Iveren; Alonso, Alfonso; Bourg, Norm; Burslem, David F. R. P.; Cao, Min; Chapman, Hazel; Condit, Richard S.; Fang, Suqin; Fischer, Gunter A.; Gao, Lianming; Hao, Zhanqin; Hau, Billy C. H.; He, Qing; Hector, Andrew; Hubbell, Stephen P.; Jiang, Mingxi; Jin, Guangze; Kenfack, David; Lai, Jiangshan; Li, Buhang; Li, Xiankun; Li, Yide; Lian, Juyu; Lin, Luxiang; Liu, Yankun; Liu, Yu; Luo, Yahuang; Ma, Keping; McShea, William; Memiaghe, Herve; Mi, Xiangcheng; Ni, Ming; O'Brien, Michael J.; de Oliveira, Alexandre A.; Orwig, David A.; Parker, Geoffrey G.; Qiao, Xiujuan; Ren, Haibao; Reynolds, Glen; Sang, Weiguo; Shen, Guochun; Su, Zhiyao; Sui, Xinghua; Sun, I-Fang; Tian, Songyan; Wang, Bin; Wang, Xihua; Wang, Xugao; Wang, Youshi; Weiblen, George D.; Wen, Shujun; Xi, Nianxun; Xiang, Wusheng; Xu, Han; Xu, Kun; Ye, Wanhui; Zhang, Bingwei; Zhang, Jiaxin; Zhang, Xiaotong; Zhang, Yingming; Zhu, Kai; Zimmerman, Jess; Storch, David; Baltzer, Jennifer L.; Anderson-Teixeira, Kristina J.; Mittelbach, Gary G.; He, Fangliang
Abstract: Climate is widely recognised as an important determinant of the latitudinal diversity gradient. However, most existing studies make no distinction between direct and indirect effects of climate, which substantially hinders our understanding of how climate constrains biodiversity globally. Using data from 35 large forest plots, we test hypothesised relationships amongst climate, topography, forest structural attributes (stem abundance, tree size variation and stand basal area) and tree species richness to better understand drivers of latitudinal tree diversity patterns. Climate influences tree richness both directly, with more species in warm, moist, aseasonal climates and indirectly, with more species at higher stem abundance. These results imply direct limitation of species diversity by climatic stress and more rapid (co-)evolution and narrower niche partitioning in warm climates. They also support the idea that increased numbers of individuals associated with high primary productivity are partitioned to support a greater number of species.
Precipitation mediates sap flux sensitivity to evaporative demand in the neotropicsGrossiord, CharlotteChristoffersen, BradleyAlonso-Rodríguez, Aura M.Anderson-Teixeira, Kristina J.Asbjornsen, HeidiAparecido, Luiza Maria T.Carter Berry, Z.Baraloto, ChristopherBonal, DamienBorrego, IsaacBurban, BenoitChambers, Jeffrey Q.Christianson, Danielle S.Detto, MatteoFaybishenko, BorisFontes, Clarissa G.Fortunel, ClaireGimenez, Bruno O.Jardine, Kolby J.Kueppers, LaraMiller, Gretchen R.Moore, Georgianne W.Negrón-Juárez, RobinsonStahl, ClémentSwenson, Nathan G.Trotsiuk, VolodymyrVaradharajan, CharuWarren, Jeffrey M.Wolfe, Brett T.Wei, LiangWood, Tana E.Xu, ChonggangMcDowell, Nate G.DOI: info:10.1007/s00442-019-04513-xv. 191No. 3519–530
Grossiord, Charlotte, Christoffersen, Bradley, Alonso-Rodríguez, Aura M., Anderson-Teixeira, Kristina J., Asbjornsen, Heidi, Aparecido, Luiza Maria T., Carter Berry, Z., Baraloto, Christopher, Bonal, Damien, Borrego, Isaac, Burban, Benoit, Chambers, Jeffrey Q., Christianson, Danielle S., Detto, Matteo, Faybishenko, Boris, Fontes, Clarissa G., Fortunel, Claire, Gimenez, Bruno O., Jardine, Kolby J., Kueppers, Lara, Miller, Gretchen R., Moore, Georgianne W., Negrón-Juárez, Robinson, Stahl, Clément, Swenson, Nathan G. et al. 2019. "Precipitation mediates sap flux sensitivity to evaporative demand in the neotropics." Oecologia 191 (3):519– 530. https://doi.org/10.1007/s00442-019-04513-x
ID: 152571
Type: article
Authors: Grossiord, Charlotte; Christoffersen, Bradley; Alonso-Rodríguez, Aura M.; Anderson-Teixeira, Kristina J.; Asbjornsen, Heidi; Aparecido, Luiza Maria T.; Carter Berry, Z.; Baraloto, Christopher; Bonal, Damien; Borrego, Isaac; Burban, Benoit; Chambers, Jeffrey Q.; Christianson, Danielle S.; Detto, Matteo; Faybishenko, Boris; Fontes, Clarissa G.; Fortunel, Claire; Gimenez, Bruno O.; Jardine, Kolby J.; Kueppers, Lara; Miller, Gretchen R.; Moore, Georgianne W.; Negrón-Juárez, Robinson; Stahl, Clément; Swenson, Nathan G.; Trotsiuk, Volodymyr; Varadharajan, Charu; Warren, Jeffrey M.; Wolfe, Brett T.; Wei, Liang; Wood, Tana E.; Xu, Chonggang; McDowell, Nate G.
Abstract: Transpiration in humid tropical forests modulates the global water cycle and is a key driver of climate regulation. Yet, our understanding of how tropical trees regulate sap flux in response to climate variability remains elusive. With a progressively warming climate, atmospheric evaporative demand i.e., vapor pressure deficit (VPD)] will be increasingly important for plant functioning, becoming the major control of plant water use in the twenty-first century. Using measurements in 34 tree species at seven sites across a precipitation gradient in the neotropics, we determined how the maximum sap flux velocity (vmax) and the VPD threshold at which vmax is reached (VPDmax) vary with precipitation regime mean annual precipitation (MAP); seasonal drought intensity (PDRY)] and two functional traits related to foliar and wood economics spectra leaf mass per area (LMA); wood specific gravity (WSG)]. We show that, even though vmax is highly variable within sites, it follows a negative trend in response to increasing MAP and PDRY across sites. LMA and WSG exerted little effect on vmax and VPDmax, suggesting that these widely used functional traits provide limited explanatory power of dynamic plant responses to environmental variation within hyper-diverse forests. This study demonstrates that long-term precipitation plays an important role in the sap flux response of humid tropical forests to VPD. Our findings suggest that under higher evaporative demand, trees growing in wetter environments in humid tropical regions may be subjected to reduced water exchange with the atmosphere relative to trees growing in drier climates.
No significant increase in tree mortality following coring in a temperate hardwood forestHelcoski, RyanTepley, Alan J.McGarvey, Jennifer C.Gonzalez-Akre, ErikaMeakem, VictoriaThompson, Jonathan R.Anderson-Teixeira, Kristina J.DOI: info:10.3959/1536-1098-75.1.67v. 75No. 167–72
Helcoski, Ryan, Tepley, Alan J., McGarvey, Jennifer C., Gonzalez-Akre, Erika, Meakem, Victoria, Thompson, Jonathan R., and Anderson-Teixeira, Kristina J. 2019. "No significant increase in tree mortality following coring in a temperate hardwood forest." Tree-Ring Research 75 (1):67– 72. https://doi.org/10.3959/1536-1098-75.1.67
ID: 150142
Type: article
Authors: Helcoski, Ryan; Tepley, Alan J.; McGarvey, Jennifer C.; Gonzalez-Akre, Erika; Meakem, Victoria; Thompson, Jonathan R.; Anderson-Teixeira, Kristina J.
Abstract: The collection of tree-ring data from living trees is widespread and highly valuable in ecological and dendro-climatological research, yet there is concern that coring injures trees, potentially contributing to mortality. Unlike resinous conifers that can quickly compartmentalize wounds, less decay-resistant angiosperms may face more pronounced risk of injury from coring. To test if coring increases mortality rates in temperate hardwood trees, we leverage a unique dataset tracking the mortality of cored and uncored hardwood trees representing 19 species from 10 genera in a 26-ha plot in Virginia, USA. We compare mortality rates between 935 cored trees and 8,605 uncored trees for seven years following coring. Annual mortality rates did not differ between cored trees (1.71% yr−1; 95% CI 1.40 to 2.20)and uncored trees (1.85% yr−1; 95% CI 1.70 to 2.28)across the full dataset , nor were there differences by genus or size class. These results indicate that the risk of hardwood mortality due to increment coring is probably lower than previously assumed. However, these results cannot rule out the possibility that coring elevates hardwood mortality in other climates or when trees face multiple additional stressors that were not prevalent over the course of our study.