Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 3 of 3 for “"hatching failure"”.
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Incubation behavior, embryonic heart rate, and developmental variation within and among altricial bird species
… incubation behaviors impact EHR, 3) rates of hatching failure across species, and 4) the factors that drive variation in hatching failure across species. EHR was positively related to both the age of the embryo, as well as egg temperature. Additionally, EHR increased as the breeding season …
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Behavioral ecology of juvenile brown-headed cowbirds: implications for the evolution and maintenance of avian brood parasitism
… respond to natural fecundity reduction (i.e. hatching failure and nestling death) with increased frequency of double-brooding. Then, I showed that raising a brood parasite induces compensatory double-brooding for female warblers by parasite-induced fecundity reduction. Consequently, hosts can …
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Understanding the decline of Martial Eagles Polemaetus bellicosus in the Kruger National Park, South Africa
… unnatural mortality, thus leading to recruitment failure back into even the largest protected areas. To test this hypothesis, I fitted GPS tags to 9 juvenile eagles to understand their dispersal behaviour, an aspect of their life cycle for which no previous information existed, and to explore …