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Probability of incubation by male Japanese Barn Swallows increases with plasma testosterone level
IBIS ( IF 2.1 ) Pub Date : 2020-01-16 , DOI: 10.1111/ibi.12816
Masaru Hasegawa 1 , Emi Arai 1 , Masahiko Nakamura 2
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Empirical studies often support the notion that testosterone inhibits paternal behaviour in animals, although most studies have focused on high, as opposed to low, levels of paternal care. We studied the relationship between plasma testosterone levels and incubation in male Japanese Barn Swallows Hirundo rustica gutturalis, in which some males participate in incubation. Contrary to our prediction, the probability of incubation by males increased with plasma testosterone level. Male incubation behaviour might have emerged as part of nest monitoring behaviour by high‐testosterone males in some subspecies that experience high nest predation rates.

中文翻译:

雄性日本燕子孵化的可能性随着血浆睾丸激素水平的升高而增加

经验研究通常支持以下观点:睾丸激素会抑制动物的父亲行为,尽管大多数研究都集中在高水平而非低水平的父亲照料上。我们研究了雄性日本Bar燕子Hirundo Rustica gutturalis中血浆睾丸激素水平与孵育之间的关系,其中一些雄性参与了孵化。与我们的预测相反,男性孵化的可能性随着血浆睾丸激素水平的升高而增加。在某些巢物种被捕食率较高的亚种中,雄性孵化行为可能是雄性雄性睾丸激素巢监测行为的一部分。
更新日期:2020-01-16
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