EBookClubs

Read Books & Download eBooks Full Online

EBookClubs

Read Books & Download eBooks Full Online

Book Use of Space by Male White throated Sparrows  Zonotrichia Albicollis

Download or read book Use of Space by Male White throated Sparrows Zonotrichia Albicollis written by James Gordon Jones and published by . This book was released on 1987 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Playback and Studies of Animal Communication

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.

Book Canadian Journal of Zoology

Download or read book Canadian Journal of Zoology written by and published by . This book was released on 1982 with total page 1004 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book A Study of the Relationships Among Familiar White throated Sparrows  Zonotrichia Albicollis  when Combined with Strangers

Download or read book A Study of the Relationships Among Familiar White throated Sparrows Zonotrichia Albicollis when Combined with Strangers written by John E. R. Perry (III) and published by . This book was released on 1984 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Ornithology in Laboratory and Field

Download or read book Ornithology in Laboratory and Field written by Olin Sewall Pettingill Jr. and published by Academic Press. This book was released on 2012-12-02 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition of Ornithology in Laboratory and Field continues to offer up-to-date coverage of the important aspects of modern ornithology. Beginning with an overview of ornithology today, Pettingill explores such topics as external and internal anatomy, physiology, ecology, flight, behavior, migration, life histories, and populations.

Book The Birds of North America

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:

Book Algonquin Provincial Park Bibliography

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:

Book Contributions to the History of North American Ornithology

Download or read book Contributions to the History of North American Ornithology written by William E. Davis (Jr.) and published by . This book was released on 1995 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Pair Compatibility in White throated Sparrows  Zonotrichia Albicollis

Download or read book Pair Compatibility in White throated Sparrows Zonotrichia Albicollis written by Nina Francesca Langsam and published by . This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Kids  Field Guide to Birds

Download or read book Kids Field Guide to Birds written by Daisy Yuhas and published by . This book was released on 2024-05-21 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: Kids’ Field Guide to Birds​ is an exciting introduction to bird spotting for kids (and their parents), helping to identify common species while keeping things fun with activities and features throughout.

Book The Ohio Journal of Science

Download or read book The Ohio Journal of Science written by and published by . This book was released on 1983 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes book reviews and abstracts.

Book Hormonal Mediation of a Unique Behavioral Polymorphism in the White throated Sparrow  Zonotrichia Albicollis

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.