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Your search:
Author = Morton, E
Limited to:National Zoological Park
Resulted in: 117 items


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Chiver, Ioana, Stutchbury, Bridget J. M. and Morton, Eugene S. 2014. Seasonal variation in male testosterone levels in a tropical bird with year-round territoriality. Journal of Field Ornithology, 85(1): 1-9. doi:10.1111/jofo.12044

Stanley, Abby A., Graham, Allie M., Wagner, Richard H., Morton, Eugene S. and Schug, Malcolm D. 2011. Characterization of 10 polymorphic microsatellite markers for the purple martin, Progne subis . Conservation Genetics Resources, 3(3): 577-579. doi:10.1007/s12686-011-9408-5

Chiver, Ioana, Morton, Eugene S. and Stutchbury, Bridget J. M. 2007. Incubation delays territory defence by male blue-headed vireos, Vireo solitarius. Animal Behaviour, 73: 143-148.

Davidar, Priya and Morton, Eugene S. 2006. Are multiple infections more severe for Purple Martins than single infections? The Auk, 123: 141-147.

Morton, Eugene S. 2006. Commentary on "The Influence of Pitch Height on the Perception of Submissiveness and Threat in Musical Passages" by David Huron, Daryl Kinney, and Kristin Precoda. Empirical Musicology Review, 1(3): 178-179.

Morton, Eugene S., Howlett, J., Kopysh, N. and Chiver, I. 2006. Song ranging by incubating male Blue-headed Vireos: the importance of song representation in repertoires and implications for song delivery patterns and local/foreign dialect discrimination. Journal of Field Ornithology, 77: 291-301.

Gorrell, J., Ritchison, G. and Morton, Eugene S. 2005. Territory size and stability in a sedentary neotropical passerine: is resource partitioning a necessary condition? Journal of Field Ornithology, 76: 395-401.

Morton, Eugene S. 2005. Variation in breeding habitat use in the Ovenbird with special reference to breeding habitat in selection in northwestern Pennsylvania. Wilson Bulletin, 117: 327-344.

Stutchbury, Bridget J. M., Woolfenden, Bonnie E., Fedy, Bradley C. and Morton, Eugene S. 2005. Nonbreeding Territorial Behavior of Two Congeneric Antbirds, Chestnut-Backed Antbird (Myrmeciza Exsul) and White-Bellied Antbird (M. Longipes). Ornitologia Neotropical, 16: 397-404.

Morton, Eugene S., Stutchbury, Bridget J. M. and Piper, Walter H. 2004. Cooperative breeding in the tropical mockingbird (Mimus gilvus) in th Panamá Canal Zone. Ornitologia Neotropical, 15: 1-5.

Bolen, G. M., Morton, Eugene S., Greenberg, Russell S. and Derrickson, Scott R. 2002. Mallards replacing black ducks: two views. .

Haggerty, T. M., Morton, Eugene S. and Fleischer, Robert C. 2001. Genetic monogramy in the Carolina Wren, Thryothorus ludovicianus. The Auk, 118: 215-219.

Morton, Eugene S. 2001. "European paper-wasp is new threat to cavity nesters". Bluebird. 23: pp.10-11.

Stutchbury, Bridget J. M. and Morton, Eugene S. 2001. Behavioral Ecology of Tropical Birds London: Academic Press.

Morton, Eugene S. 2000. An evolutionary view of the origins and functions of avian vocal communication. Japan Journal of Ornithology, 49: 69-78.

Morton, Eugene S. 2000. "The European paper-wasp: a new threat to cavity-nesting birds is coming!". Purple Martin Update. : pp.12-13.

Morton, Eugene S. and Stutchbury, Bridget J. M. 2000. Demography and Reproductive Success in the Dusky Antbird, a Sedentary Tropical Passerine. Journal of Field Ornithology, 71(3): 493-500.

Morton, Eugene S., Stutchbury, Bridget J. M. and Derrickson, Kim C. 2000. Territory switching behavior in a sedentary tropical passerine, the dusky antbirds Cercomacra tyrannina . Behavioral Ecology, 11(6): 648-653.

Warkentin, I. G. and Morton, Eugene S. 2000. Flocking and foraging behavior of wintering prothonotary warblers. Wilson Bulletin, 112(1): 88-98.

Hopp, S. L. and Morton, Eugene S. 1998. Sound playback studies. In: Hopp, S. L., Owen, M. J. and Evans, C. S., Animal Acoustic Communication. Berlin: Springer, pp.323-352.

Morton, Eugene S. 1998. Reply to Naguib and Wiley. Behavioral Ecology and Sociobiology, 42: 147-148.

Morton, Eugene S. 1998. Degradation and signal ranging in birds: Memory matters. Behavioral Ecology and Sociobiology, 42: 135-137.

Morton, Eugene S. 1998. Pairing in mallards and American black ducks: a new view on population decline in American black ducks. Animal Conservation, 1(4): 239-244.

Morton, Eugene S. and Stutchbury, Bridget J. M. 1998. "More on martin hogs". Purple Martin Update. 8: pp.3-4.

Morton, Eugene S., Stutchbury, Bridget J. M., Howlett, J. S. and Piper, W. H. 1998. Genetic monogamy in blue-headed vireos and a comparison with a sympatric vireo with extrapair paternity. Behavioral Ecology, 9: 515-524.

Owings, D. H. and Morton, Eugene S. 1998. The Evolution of Vocal Communication: A New Approach Cambridge, MA: Cambridge University Press.

Stutchbury, Bridget J. M., Morton, Eugene S. and Piper, W. H. 1998. Extra-pair mating system of a synchronously breeding tropical songbird. Journal of Avian Biology, 29(1): 72-78.

Wagner, R. H., Schug, M. D. and Morton, Eugene S. 1998. Commentaries: Studying paternity and paternal care: the value of negative results. Animal Behaviour, 55: 239-240.

Fleischer, Robert C., Tarr, C. L., Morton, Eugene S., Sangmeister, A. and Derrickson, Kim C. 1997. Mating system of the dusky antbird, a tropical passerine, as assessed by DNA fingerprinting. The Condor, 99: 512-514.

Morton, Eugene S. 1997. Purple martin. Virginia Breeding Bird Atlas, : 000

Morton, Eugene S. 1997. Carolina wren. Virginia Breeding Bird Atlas, : 000

Morton, Eugene S. and Stutchbury, Bridget J. M. 1997. "Are you a martin hog?". Purple Martin Update. 7: pp.8-9.

Owings, D. H. and Morton, Eugene S. 1997. The role of information in communication : an assessment/manaagement approach. In: Beecher, M. D., Owings, D. H. and Thompson, N., Perspectives in Ethology. New York, NY: Plenum Press, pp.359-390.

Wagner, R. H. and Morton, Eugene S. 1997. Sexual selection for delayed size maturation in a bird exhibiting delayed plumage maturation. Journal of Avian Biology, 28: 143-149.

Wagner, R. H., Morton, Eugene S., Davidar, P. and Schug, M. 1997. Do blood parasites affect paternity and provisioning in Purple Martins? The Condor, 99: 520-523.

Morton, Eugene S. 1996. A comparison of vocal behavior among tropical and temperate passerine birds. In: Kroodsma, D. K. and Miller, T. E., Ecology and Evolution of Acoustic Communication in Birds. Cornell University Press, pp.258-268.

Morton, Eugene S. 1996. Review of Ecology and Management of Neotropical Migratory Birds, edited by T.E. Martin and D.M. Finch. The Auk, 113: 971-973.

Morton, Eugene S. 1996. Why songbirds learn songs: an arms race over ranging? Poultry and Avian Biology Reviews, 7: 65-71.

Morton, Eugene S. and Derrickson, Kim C. 1996. Song ranging by the dusky antbird Cercomacra tyrannina: ranging without song learning. Behavioral Ecology and Sociobiology, 39: 195-201.

Stutchbury, Bridget J. M., Martin, P. and Morton, Eugene S. 1996. Nesting behavior of the Slate-colored Seedeater (Sporophila schistacea) in Panamá. Ornitologia Neotropical, 7: 63-65.

Wagner, R. H., Schug, M. D. and Morton, Eugene S. 1996. Confidence of paternity, actual paternity, and parental effort by purple martins. Animal Behaviour, 52: 123-132.

Wagner, R. H., Schug, M. D. and Morton, Eugene S. 1996. Condition-dependent control of paternity by female purple martins: implications of coloniality. Behavioral Ecology and Sociobiology, 38: 379-389.

Haggerty, T. and Morton, Eugene S. 1995. Carolina Wren Thryothorus ludovicianus. The Birds of North America, Inc, 5(188): 1-20.

McShea, William J., McDonald, M. Victoria, Meier, Rudolf, Morton, Eugene S. and Rappole, John H. 1995. Long term trends in habitat selection by Kentucky warblers as determined by GIS. The Auk, 112: 375-381.

Morton, Eugene S. 1995. Making a difference. In: Greenberg, Russell S. and Reaser, Jamie K., Bring Back the Birds. Stackpole Books, pp.142-145.

Rappole, John H., Morton, Eugene S., Lovejoy, Thomas E. and Ruos, J. R. 1995. Nearctic Avian Migrants in the Neotropics Front Royal, VA: Conservation & Research Center.

Stutchbury, Bridget J. M. and Morton, Eugene S. 1995. The effect of breeding synchrony on extra-pair mating systems in songbirds. Behaviour, 132: 675-690.

Warkentin, I. G. and Morton, Eugene S. 1995. Roosting behavior of Prothonotary Warblers in the nonbreeding season. Wilson Bulletin, 107: 374-376.

Jung, R. E., Morton, Eugene S. and Fleischer, Robert C. 1994. Behavior and parentage of a White-throated Sparrow X Darked-eyed Junco hybrid. Wilson Bulletin, 106(2): 189-202.

Morton, Eugene S. 1994. Sound symbolism and its role in nonhuman vertebrate communication. In: Ohala, J., Hinton, L. and Michols, J., Sound Symbolism. Cambridge, MA: Cambridge University Press, pp.348-365.

Morton, Eugene S., Young, K. and Ramos, M. 1994. Growing points in Neotropical Migrant Bird Conservation. Bird Conservation International, 4: 69-262.

Stutchbury, Bridget J. M., Rhymer, J. H. and Morton, Eugene S. 1994. Parentage and plumage in hooded warblers: support for female control of extrapair fertilizations. Behavioral Ecology and Sociobiology, 5: 384-392.

Davidar, P. and Morton, Eugene S. 1993. Living with parasites: Prevalence of a blood parasite and its effect on survivorship in the purple martin. The Auk, 110: 109-116.

Morton, Eugene S. 1993. Review of Voices of the Cloud Forest by David L. Ross, Jr. Living Bird Quarterly, Spring: 000

Morton, Eugene S., Van der Voort, M. and Greenberg, Russell S. 1993. How a warbler chooses its habitat: Field support for laboratory experiments. Animal Behaviour, 46: 47-53.

Rappole, John H., Morton, Eugene S., Ruos, J. R. and Lovejoy, Thomas E. 1993. Aves migratorios nearticos en los Neotropicos Front Royal, VA: Conservation & Research Center.

Morton, Eugene S. 1992. "Martin night at the Morton's: Civic-minded martins give blood for science". Purple Martin Update. 4(1): pp.1-5.

Morton, Eugene S. 1992. What do we know about the future of migrant landbirds?. In: Hagen, J. M. and Johnston, D. W., Ecology and Conservation of Neotropical Migrant Landbirds. Washington, DC: Smithsonian Institution Press, pp.579-589.

Morton, Eugene S. and Mabey, S. 1992. Demography and territorial behavior of wintering Kentucky Warblers in Panamá. In: Hagen, J. M. and Johnston, D. W., Ecology and Conservation of Neotropical Migrant Landbirds. Washington, DC: Smithsonian Institution Press, pp.329-336.

Morton, Eugene S. and Page, J. 1992. Animal talk: Science and the voices of nature New York, NY: Random House.

Rappole, John H., Morton, Eugene S. and Ramos, M. A. 1992. Density, philopatry, and population estimates for songbird migrants wintering in Veracruz. In: Hagan III, J. M. and Johnston, D. W., Ecology and Conservation of Neotropical Migrant Landbirds. Washington, D.C.: Smithsonian Institution Press, pp.337-344.

Morton, Eugene S. 1991. Condominium living in purple martins: good long term investment but high entry fees!. Living Bird Quarterly, January: 000

Morton, Eugene S. 1990. Habitat segregation by sex in the Hooded Warbler: experiments on proximate causation and discussion of its evolution. The American Naturalist, 135: 319-333.

Morton, Eugene S. and Derrickson, Kim C. 1990. The biological significance of age-specific return schedules in breeding Purple Martins. The Condor, 92: 1040-1050.

Morton, Eugene S., Forman, Lisa and Braun, Michael J. 1990. Extrapair fertilizations and the evolution of colonial breeding in purple martins. The Auk, 107: 275-283.

Morton, Eugene S. 1989. "Purple dawn". Purple Martin Update. 2(1): pp.10-13.

Morton, Eugene S. 1989. Female Hooded Warbler plumage does not become more male-like with age. Wilson Bulletin, 101: 460-462.

Morton, Eugene S. and Greenberg, Russell S. 1989. The outlook for migratory songbirds: "Future shock" for birders. American Birds, 43: 178-183.

Page, J. and Morton, Eugene S. 1989. Lords of the Air, The Smithsonian Book of Birds Washington: Smithsonian Institution Press.

Morton, Eugene S. 1988. The truly long term trend in populations of the Purple Martin. Purple Martin Update, 1: 20-22.

Morton, Eugene S. 1988. Dawnsong of the Purple Martin. Atlantic Naturalist, 38: 38-48.

Morton, Eugene S. 1988. "Innate": Outdated and inadequate or linguistic convenience? Brain and Behavioral Sciences, 11(4): 642-643.

Morton, Eugene S. and Tsipoura, N. 1988. Song-type distribution in a population of Kentucky Warblers. Wilson Bulletin, 100: 9-10.

Morton, Eugene S. 1987. Reintroduction as a method of studying bird behavior and ecology. In: Jordan, W. R., Gilpin, M. E. and Aber, J. D., Restoration Ecology. Cambridge, MA: Cambridge University Press, pp.165-172.

Morton, Eugene S. 1987. Variation in mate guarding intensity by male Purple Martins. Behaviour, 101: 211-224.

Morton, Eugene S. 1987. The effects of distance and isolation on song-type sharing in the Carolina Wren. Wilson Bulletin, 99: 601-610.

Morton, Eugene S., Lynch, James F., Young, Kimberley and Mehlhop, Patricia. 1987. Do male Hooded Warblers exclude females from nonbreeding territories in tropical forest? The Auk, 104(1): 133-135.

Davidar, P. and Morton, Eugene S. 1986. The relationship between fruit crop sizes and removal rates by birds. Ecology, 67: 262-265.

Davidar, Priya and Morton, Eugene S. 1986. Relationship between fruit crop sizes and fruit removal rates by birds. Ecology, 67: 262-265.

Morton, Eugene S. 1986. Predictions from the ranging hypothesis for the evolution of long distance signals in birds. Behaviour, 99: 65-86.

Morton, Eugene S. and Young, K. 1986. A previously undescribed method of song matching in a species with a single song "type", the Kentucky Warbler, Oporornis formosus. Ethology, 73: 334-342.

Morton, Eugene S., Gish, S. and Van der Voort, M. 1986. On the learning of degraded and undegraded songs in the Carolina wren. Animal Behaviour, 34: 815-820.

Shy, E. and Morton, Eugene S. 1986. The role of distance, familiarity, and time of day in Carolina wren responses to conspecific songs. Behavioral Ecology and Sociobiology, 19: 393-400.

Shy, E. and Morton, Eugene S. 1986. Adaptation of amplitude structure of songs to propagation in field habitat in song sparrows. Ethology, 72: 177-184.

Buckley, P., Foster, Mercedes S., Morton, Eugene S., Ridgely, R. and Buckley, F. 1985. Neotropical Ornithology American Ornithologists Union.

Lynch, J., Morton, Eugene S. and Van der Voort, M. 1985. Habitat segregation between the sexes of wintering Hooded Warblers. The Auk, 102: 714-721.

Morton, Eugene S. 1985. Vocal imitation in a captive Purple Martin. Wilson Bulletin, 97: 392-395.

Morton, Eugene S. 1985. Review of The Clapper Rail by Brooke Meanley. Audubon Naturalist Society News, October: 000

Morton, Eugene S. 1985. The realities of reintroducing species to the wild. In: Hoage, R., Animal Extinctions: what everyone should know. Washington, DC: Smithsonian Institution Press, pp.147-158.

Morton, Eugene S. 1985. Review of A Laboratory and Field Manual of Ornithology by Olin Sewall Pettingill. Audubon Naturalist Society News, October: 000

Morton, Eugene S. 1985. Turdus grayi. In: Janzen, D., Costa Rican Natural History. University of Chicago Press, pp.610-611.

Rappole, John H. and Morton, Eugene S. 1985. Effects of habitat alteration on a tropical avian forest community. In: Buckley, P., Foster, Mercedes S., Morton, Eugene S., Buckley, F. and Ridgely, R., Neotropical Ornithology. Washington, DC: American Ornithologists Union, pp.1013-1021.

Morton, Eugene S. 1983. "Animal Communication: What do animals say?". American Biology Teacher. 45: pp.343-348.

Morton, Eugene S. and Patterson, R. 1983. Kin association, spacing, and composition of a post-breeding roost of purple martins. Journal of Field Ornithology, 54: 36-41.

Rappole, John H., Morton, Eugene S., Lovejoy, Thomas E. and Ruos, J. R. 1983. Nearctic Avian Migrants in the Neotropics Washington, DC: U.S. Government Printing Office.

Morton, Eugene S. 1982. Adaptations for tropical survival in wintering North American birds. In: Oehser, P. H., Lea, J. S. and Powars, N. L., National Geographic Society Research Reports. National Geographic, pp.491-498.

Morton, Eugene S. 1982. Grading, discreteness, redundancy, and motivation-structural rules. In: Kroodsma, D. and Miller, E. H., Acoustic Communication in Birds. Academic Press, pp.183-212.

Morton, Eugene S. 1982. Sobre las ventajas y desventajas de comer frutas en la evolucion de aves tropicales. In: Abla, G. and Rubinoff, R., Evolucion en los Tropicos. Panama: Impresora Panama, pp.113-124.

Morton, Eugene S. and Gonzalez, H. 1982. The biology of Torreornis inexpectata I. A comparison of vocalization in T.i. inexpectata and T. i. sigmani. Wilson Bulletin, 94: 433-446.

Gish, S. L. and Morton, Eugene S. 1981. Structural adaptations to local habitat acoustics in Carolina Wren songs. Zeitschrift fur Tierpsychologie, 56: 74-84.

Keast, A. and Morton, Eugene S. 1980. Migrant Birds in the Neotropics: ecology, behavior, distribution, and conservation Washington, DC: Smithsonian Institution Press.

Morton, Eugene S. 1980. Our migrant land birds: Can we continue to take them for granted? Atlantic Naturalist, 33: 36-41.

Morton, Eugene S. 1980. Adaptations to seasonal changes by migrant land birds in the Panamá Canal Zone. In: Keast, A. and Morton, Eugene S., Migrant Birds in the Neotropics: ecology, behavior, distribution, and conservation. Washington, DC: Smithsonian Institution Press, pp.437-453.

Morton, Eugene S. 1980. The adaptations of tropical migrants to winter survival. In: Bird populations, a litmus test of the environment. Audubon Naturalist Society, pp.555-557.

Morton, Eugene S. 1980. The importance of migrant birds to evolutionary theory. In: Keast, A. and Morton, Eugene S., Migrant Birds in the Neotropics: ecology, behavior, distribution, and conservation. Washington, DC: Smithsonian Institution Press, pp.555-557.

Morton, Eugene S. and Farabaugh, S. 1980. The ecological background for the evolution of vocal sounds used at close range. In: Proceedings of the XVIII International Ornithological Congress.. Berlin: pp.737-741.

Morton, Eugene S. 1979. Effective pollination of Erythrina fusca by the Orchard Oriole (Icterus spurius): Coevolved behavioral manipulation? Annals of the Missouri Botanical Garden, 66(3): 482-489.

Morton, Eugene S. 1978. [Review]: Growing Points in Ethology by P. P. G. Bateson; R. A. Hinde. The Quarterly review of biology, 53(2): 201

Morton, Eugene S., Geitgey, Mary S. and McGrath, Susan. 1978. On bluebird "responses to apparent female adultery". American Naturalist, 112(987): 968-971.

Morton, Eugene S. 1977. Intratropical migration in the yellow-green vireo and piratic flycatcher. The Auk, 94(1): 97-106.

Morton, Eugene S. 1977. Ecology and behavior of some Panamanian odonata. Proceedings of the Entomological Society of Washington, 79(2): 273

Morton, Eugene S. 1977. On the occurrence and significance of motivation-structural rules in some bird and mammal sounds. American Naturalist, 111(981): 855-869.

Morton, Eugene S. and Shalter, M. D. 1977. Vocal response to predators in pair-bonded Carolina wrens. Condor, 79(2): 222-227.

Morton, Eugene S. 1976. The adaptive significance of dull coloration in yellow warblers. Condor, 78(3): 423

Morton, Eugene S. 1976. Vocal mimicry in the Thick-billed Euphonia. The Wilson Bulletin, 88(3): 485-487.

Morton, Eugene S. 1975. Ecological sources of selection on avian sounds. American Naturalist, 109(965): 17-34.

Morton, Eugene S. 1973. On the evolutionary advantages and disadvantages of fruit eating in tropical birds. The American Naturalist, 107(953): 8-22.

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