Certainty of paternity and paternal investment in eastern bluebirds and tree swallows
Article Abstract:
The certainty of paternity was reduced in two species, the eastern bluebird, Sialia sialis, and the tree swallow, Tachycineta bicolor, by temporarily removing fertile females on two morning during egg laying. In both species, the males tried to copulate with the female upon her return, indicating that they perceive the absence of their mate as a threat to their paternity. Results also showed that the males' confidence in their paternity returned after they were able to copulate.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 1998
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No evidence of paternal genetic contribution to nestling cell-mediated immunity in the North American barn swallow
Article Abstract:
Speculations regarding the need for extra pair mating partners in Hirundo rustica, the female barn swallow, for enhancing cell-mediated immunity during nestling, are discussed.
Publication Name: Animal Behaviour
Subject: Zoology and wildlife conservation
ISSN: 0003-3472
Year: 2006
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