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Certainty of paternity and paternal investment in eastern bluebirds and tree swallows

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Bart Kempenaers, Richard B. Lanctot, and Raleigh J. Robertson, 1998, Certainty of paternity and paternal investment in eastern bluebirds and tree swallows: Animal Behaviour, v. 55, iss. 4.

Summary

Extra-pair paternity is common in many socially monogamous passerine birds with biparental care. Thus, males often invest in offspring to which they are not related. Models of optimal parental investment predict that, under certain assumptions, males should lower their investment in response to reduced certainty of paternity. We attempted to reduce certainty of paternity experimentally in two species, the eastern bluebird, Sialia sialis, and the tree swallow, Tachycineta bicolor, by temporarily removing fertile females on two mornings during egg laying. In both species, experimental males usually attempted to copulate with the female immediately after her reappearance, suggesting that they experienced the absence of their mate as a [...]

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Type Scheme Key
local-index unknown 70180709
local-pk unknown 70180709
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.1006/anbe.1997.0667
series unknown Animal Behaviour

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citationTypeArticle
journalAnimal Behaviour
languageEnglish
parts
typevolume
value55
typeissue
value4

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