The mating strategies of eastern screech-owls: a genetic analysis
Article Abstract:
A genetic analysis of the mating behavior of male and female eastern screech-owls in central Kentucky was conducted. The DNA fingerprints demonstrated no proof of extra-pair fertilizations in 23 broods. These findings indicate that the practice of extra-pair copulations by male and female screech-owls may be counterproductive. Females may lose their nest site or waste their energy, which may risk egg production. Males may not be able to feed their mate sufficiently, which may in turn undermine reproductive success.
Publication Name: The Condor
Subject: Biological sciences
ISSN: 0010-5422
Year: 1997
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A tale of two strategies: Life-history aspects of family strife
Article Abstract:
Breeding birds have evolved life history traits that maximize lifetime reproductive success. Clutch size has been understood to be frequently lower than the number young parents can support. An explanation for over-production is the insurance hypothesis, and skepticism over its role may be misdirected.
Publication Name: The Condor
Subject: Biological sciences
ISSN: 0010-5422
Year: 2000
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Badge size and extra-pair fertilizations in the House Sparrow
Article Abstract:
Research concerning the use of multi-locus DNA fingerprinting to determine the role played by the size of male House Sparrow throat badges in extra-pair copulation and cuckoldry is presented.
Publication Name: The Condor
Subject: Biological sciences
ISSN: 0010-5422
Year: 2000
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