Download or read book Some Aspects of Territorial Behaviour in the White throated Sparrow Zonotrichia Albicollis Gmelin written by Maire Lainevool and published by . This book was released on 1966 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Some Aspects of the Breeding Biology of the White throated Sparrow Zonotrichia Albicollis Gmelin I The Nesting Cycle II The Nesting Habitat written by James K. Lowther and published by . This book was released on 1960 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Territorial Behavior of White throated Sparrows Zonotrichia Albicollis with Special Emphasis on Song written by Frederick E. Wasserman and published by . This book was released on 1977 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Canadian Journal of Zoology written by and published by . This book was released on 1988 with total page 798 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Pairing on Activity Pattern of the White throated Sparrow Zonotrichia Albicollis Gmelin written by Mercedes Consuelo Mondecar and published by . This book was released on 1982 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Birds of North America written by and published by . This book was released on 1995 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Migratory Behaviour of the White throated Sparrow Zonotrichia Albicollis at Madison Wisconsin written by John Burton Millar and published by . This book was released on 1960 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Algonquin Provincial Park Bibliography written by Friends of Algonquin Park and published by . This book was released on 1996 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hormonal Mediation of a Unique Behavioral Polymorphism in the White throated Sparrow Zonotrichia Albicollis written by Meredith Bettencourt Swett and published by . This book was released on 2007 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 aggressive, sing more frequently and seek more extra-pair copulations. Tan-striped (TS) morphs provision nestlings more frequently. Thus this species roughly illustrates the trade-off between mating effort and parental care. I examine T physiology on three levels: plasma titres, binding globulins and response to the social environment. I ask whether levels of T correlate with morph-specific behavior and does this relationship change with stage in the nesting cycle. I found that WS males have significantly higher plasma levels of T than TS males. This difference is small, but it persisted through the parental stage of the nesting cycle. This suggests that T may mediate differences in mating effort and parental behavior in males, but is likely not the only factor. Female morphs did not differ in plasma T, thus T does not appear to play a similar role in females. Next I ask how corticosterone binding globulin (CBG) modulates T action. I found that CBG binds over 90% of T and is an important modulator of T action in this species. However CBG capacity did not differ between morphs, nor did morphs differ in baseline levels of corticosterone (CORT, a stress hormone that competes with T for binding sites on CBG.) Therefore interactions with CBG and CORT do not affect T action differently in the morphs, and patterns of free T (T not bound to CBG) mirror patterns of total T. Finally I investigated how T physiology responds to a change in the social environment- the establishment of a dominance relationship. WS males exhibited aggression more frequently and tended to dominate TS males. Levels of total T, CBG, CORT and free T were not predictive of future dominance status. Nor did these measures show persistent changes once the dominance relationship was established. The response of T physiology to the formation of a dominance relationship did not differ between morphs.

Download or read book Nightly Unrest in the White throated Sparrow written by James Rolan Brown and published by . This book was released on 1966 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Canadian Theses written by and published by . This book was released on 1966 with total page 916 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Spatial Relationships and Aggression in the White throated Sparrow Zonotrichia Albicollis written by Emily Dale Kennedy and published by . This book was released on 1979 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Does song deter territorial intrusion in White throated sparrows Zonotrichia albicollis written by J. Bruce Falls and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Some Aspects of the Testicular Cycle of the White throated Sparrow Zonotrichia Leucophrys Albicollis written by John Roberts Faucette and published by . This book was released on 1966 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Colour and Behavioural Polymorphism in the White throated Sparrow Zonotrichia Albicollis Gmelin written by James Kerr Lowther and published by . This book was released on 1962 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Playback and Studies of Animal Communication written by Peter K. McGregor and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: Playback is the technique of rebroadcasting natural or synthetic signals to animals and observing their response. The ability to present a putative signal in isolation, without the potential confounding effects of other activities of the signaller, is the main reason for the depth and range of our knowledge of communication systems. To date, playback of sound signals has predominated, but playback of electric signals and even video playback of visual signals suggests that playback will become just as prevalent in studies of communication in other sensory modalities. This book is one of the outcomes of a workshop on playback held at Thombridge Hall in the Peak District National Park, England during August 1991. There were two reasons for organising the workshop. First, the considerable and lively debate in the literature about the design and analysis of playback experiments -the pseudoreplication debate -was in danger of generating more heat than light. A workshop forum seemed the obvious place to clarify and, if possible, resolve the debate. Second, with the number of new playback and analysis techniques increasing rapidly, it seemed an opportune moment to discuss these techniques and to review some rapidly developing areas of interest in sound communication.

Download or read book Variation in Female Brooding Behavior in the Polymorphic White throated Sparrow Zonotrichia Albicollis written by Heidi L. Murray and published by . This book was released on 2006 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: