Social signal manipulation and environmental challenges have independent effects on physiology, internal microbiome, and reproductive performance in tree swallows (Tachycineta bicolor).

Autor: Taff CC; Department of Ecology & Evolutionary Biology and Lab of Ornithology, Cornell University, Ithaca, New York, USA., McNew SM; Department of Ecology & Evolutionary Biology and Lab of Ornithology, Cornell University, Ithaca, New York, USA.; Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, Arizona, USA., Zimmer C; Laboratoire d'Ethologie Expérimentale et Comparée, University Sorbonne Paris Nord, Paris, France., Uehling JJ; Department of Ecology & Evolutionary Biology and Lab of Ornithology, Cornell University, Ithaca, New York, USA., Houtz JL; Department of Ecology & Evolutionary Biology and Lab of Ornithology, Cornell University, Ithaca, New York, USA., Ryan TA; Department of Ecology & Evolutionary Biology and Lab of Ornithology, Cornell University, Ithaca, New York, USA., Chang van Oordt D; Department of Ecology & Evolutionary Biology and Lab of Ornithology, Cornell University, Ithaca, New York, USA., Injaian AS; Odum School of Ecology, University of Georgia, Athens, Georgia, USA., Vitousek MN; Department of Ecology & Evolutionary Biology and Lab of Ornithology, Cornell University, Ithaca, New York, USA.
Jazyk: angličtina
Zdroj: Journal of experimental zoology. Part A, Ecological and integrative physiology [J Exp Zool A Ecol Integr Physiol] 2023 Oct; Vol. 339 (8), pp. 723-735. Date of Electronic Publication: 2023 Jun 12.
DOI: 10.1002/jez.2722
Abstrakt: The social environment that individuals experience appears to be a particularly salient mediator of stress resilience, as the nature and valence of social interactions are often related to subsequent health, physiology, microbiota, and overall stress resilience. Relatively few studies have simultaneously manipulated the social environment and ecological challenges under natural conditions. Here, we report the results of experiments in wild tree swallows (Tachycineta bicolor) in which we manipulated both ecological challenges (predator encounters and flight efficiency reduction) and social interactions (by experimental dulling of a social signal). In two experiments conducted in separate years, we reversed the order of these treatments so that females experienced either an altered social signal followed by a challenge or vice-versa. Before, during, and after treatments were applied, we tracked breeding success, morphology and physiology (mass, corticosterone, and glucose), nest box visits via an RFID sensor network, cloacal microbiome diversity, and fledging success. Overall, we found that predator exposure during the nestling period reduced the likelihood of fledging and that signal manipulation sometimes altered nest box visitation patterns, but little evidence that the two categories of treatment interacted with each other. We discuss the implications of our results for understanding what types of challenges and what conditions are most likely to result in interactions between the social environment and ecological challenges.
(© 2023 Wiley Periodicals LLC.)
Databáze: MEDLINE
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