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.
Results
Showing 1 to 6 of 6 for “"zonotrichia albicollis"”.
-
Wintering white-throated sparrows (Zonotrichia albicollis): home ranges, aggression and corticosterone
<p>White-throated sparrows (Zonotrichia albicollis) are songbirds that spend the non-breeding season in southeastern North America, where they form philopatric territorial flocks. Flocks exhibit dominance hierarchies, with dominance rank associated with an individual's age and prior residence in …
-
Hormonal Mediation of a Unique Behavioral Polymorphism in the White-throated Sparrow (Zonotrichia albicollis)
In this body of work, I examine how testosterone (T) physiology mediates the life-history trade-off between mating effort and parental care in the White-throated Sparrow. This species exhibits a behavioral polymorphism that occurs in both sexes. White-striped (WS) morphs are more territorially …
-
Hormonal Mediation of a Unique Behavioral Polymorphism in the White-throated Sparrow (Zonotrichia albicollis)
In this body of work, I examine how testosterone (T) physiology mediates the life-history trade-off between mating effort and parental care in the White-throated Sparrow. This species exhibits a behavioral polymorphism that occurs in both sexes. White-striped (WS) morphs are more territorially …
-
IMPACTS OF BLOODBORNE PATHOGEN INFECTIONS ON BREEDING ECOLOGY AND SUCCESS IN WHITE-THROATED SPARROWS (Zonotrichia albicollis)
<p>Bloodborne pathogens have significant and persistent impacts on avian populations worldwide, including decreased long-term survival and population size. Existing research indicates that chronic pathogen infections may have negative impacts on nesting success, such as decreased numbers of …
-
Effect of Temperature and Exercise on Body Weight and Energy Intake of the White-Throated Sparrow, Zonotrichia Albicollis
Made available in DSpace on 2014-12-10T18:13:26Z (GMT). No. of bitstreams: 1 6511811.pdf: 2208161 bytes, checksum: 79f8d6ba433d7642bfc695d81c38d187 (MD5) Previous issue date: 1965
-
Variation In Habitat Thresholds: An Analysis Of Minimum Habitat Requirements Of North American Breeding Birds
… regions (results for White-throated Sparrow (Zonotrichia albicollis)). I found no universal trend in this variation, although a few species showed a significant increase in threshold amounts with increasing forest cover in the landscape. In Chapter IV, I show that it is possible to assess …