Male parental investment reflects the level of partner contributions and brood value in tree swallows
نویسندگان
چکیده
a Department of Biological Sciences, Virginia Tech, Blacksburg, VA, USA 6 b Department of Evolutionary Zoology and Human Biology, University of Debrecen, Debrecen, 7 Hungary 8 c Department of Psychology, Koç University, İstanbul, Turkey 9 d Department of Biology, Davidson College, Davidson, NC, USA 10 e Department of Biology, Bucknell University, Lewisburg, PA, USA 11 f Department of Biology, Queen’s University, Kingston, ON, Canada 12 13 *co-corresponding authors (these authors have contributed equally) 14 15 Corresponding authors: 16 Ádám Z. Lendvai, [email protected] 17 Department of Evolutionary Zoology and Human Biology 18 University of Debrecen 19 Egyetem tér 1. Debrecen, 4032, Hungary 20 21
منابع مشابه
Strategic adjustment of parental care in tree swallows: life-history trade-offs and the role of glucocorticoids
Life-history theory predicts that optimal strategies of parental investment will depend on ecological and social factors, such as current brood value and offspring need. Parental care strategies are also likely to be mediated in part by the hypothalamic-pituitary-adrenal axis and glucocorticoid hormones. Here, we present an experiment in tree swallows (Tachycineta bicolor), a biparental songbir...
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In species with biparental care, males tend to invest less in offspring than do females, likely because of differences in the costs and benefits associated with parental effort. Here I test for sex differences in the response of tree swallows (Tachycineta bicolor (Vieillot, 1808)) to a brood-size manipulation at two locations differing in food resources, Alaska and New York. I tested sex and ha...
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Intra-population variation in many fitness-related traits (e.g. clutch size) is often attributed to variation in individual parental quality. One possible component of quality is the level at which each individual can expend energy while provisioning dependent young. We used breeding tree swallows (Tachycineta bicolor) to test whether adults with large, natural-sized broods and/or nestlings in ...
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