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of 35
pro vyhledávání: '"D. Caldwell Hahn"'
Publikováno v:
Ecology and Evolution, Vol 8, Iss 16, Pp 8537-8546 (2018)
Abstract Here, we describe the design of an Anas‐specific kinome peptide array that can be used to study the immunometabolic responses of mallard and American black duck to pathogens, contaminants, and environmental stress. The peptide arrays conta
Externí odkaz:
https://doaj.org/article/36634cb482a04a038a602b38d21c0c6a
Publikováno v:
Ecology and Evolution, Vol 8, Iss 16, Pp 8537-8546 (2018)
Here, we describe the design of an Anas‐specific kinome peptide array that can be used to study the immunometabolic responses of mallard and American black duck to pathogens, contaminants, and environmental stress. The peptide arrays contain 2,642
Publikováno v:
General and Comparative Endocrinology. 240:143-152
In the coevolutionary dynamic of avian brood parasites and their hosts, maternal (or transgenerational) effects have rarely been investigated. We examined the potential role of elevated yolk testosterone in eggs of the principal brood parasite in Nor
Publikováno v:
Evolutionary Biology. 40:554-561
Immune adaptations of obligate brood parasites attracted interest when three New World cowbird species (Passeriformes, Icteridae, genus Molothrus) proved unusually resistant to West Nile virus. We have used cowbirds as models to investigate the eco-i
Publikováno v:
The Wilson Journal of Ornithology. 123:779-787
We tracked the development of innate immunity in nestling Tree Swallows (Tachycineta bicolor) and compared it to that of adults using blood drawn from nestlings during days 6, 12, and 18 of the ∼20-day nestling period and from adults. Innate immuni
Publikováno v:
The Condor. 113:853-859
Evolutionary theory predicts that exposure to more diverse pathogens will result in the evolution of a more robust immune response. We predicted that during the breeding season the innate immune function of female Tree Swallows (Tachycineta. bicolor)
Autor:
D. Caldwell Hahn, Graham W. Smith
Publikováno v:
The Open Evolution Journal. 5:8-13
Life history theory predicts evolutionary trade-offs between investing in immune defense and other traits. We investigated whether reduced longevity was associated with increased investment in immunity in an avian brood parasite, the brown-headed cow
Autor:
D. Caldwell Hahn
Publikováno v:
General and Comparative Endocrinology. 172:423-429
Owl clutches typically hatch asynchronously, and brood size hierarchies develop. In this study, we describe intra-clutch variation of testosterone, androstenedione, estradiol, and corticosterone in Eastern screech owl egg yolks. In order to assess wh
Autor:
William K. Reisen, D. Caldwell Hahn
Publikováno v:
Evolutionary Biology. 38:214-224
Immunologists and evolutionary biologists are interested in how the immune system evolves to fit an ecological niche. We studied the relationship between exposure to parasites and strength of immunity by investigating the response of two species of N
Autor:
Corinne P. Kozlowski, D. Caldwell Hahn
Publikováno v:
The Wilson Journal of Ornithology. 122:755-761
We studied androgen production during development in nestling Eastern Screech-Owls (Megascops asio) and hypothesized that gender and hatch order might influence serum levels of testosterone and androstenedione. Testosterone levels were highest immedi