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Book The Effects of an Altered Photoperiod Upon the Migratory Orientation in the White throated Sparrow  Zonotrichia Albicollis

Download or read book The Effects of an Altered Photoperiod Upon the Migratory Orientation in the White throated Sparrow Zonotrichia Albicollis written by Larry John Miller and published by . This book was released on 1976 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Wildlife Abstracts

    Book Details:
  • Author : U.S. Fish and Wildlife Service
  • Publisher :
  • Release : 1954
  • ISBN :
  • Pages : 346 pages

Download or read book Wildlife Abstracts written by U.S. Fish and Wildlife Service and published by . This book was released on 1954 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Avian Biology

    Book Details:
  • Author : Donald S. Farner
  • Publisher : Academic Press
  • Release : 2013-09-17
  • ISBN : 1483269442
  • Pages : 548 pages

Download or read book Avian Biology written by Donald S. Farner and published by Academic Press. This book was released on 2013-09-17 with total page 548 pages. Available in PDF, EPUB and Kindle. Book excerpt: Avian Biology, Volume V is a collection of papers that deals with the biology of birds concerning their mechanics of flight and migration. The first paper describes the mechanics of bird flights such as gliding, soaring, and the energy requirements of this activity. Other papers investigate the control and metabolic physiology of migration, including flight restlessness and fat metabolism. Other topics cover migratory orientation research involving topographical, meteorological, inertial, magnetic, and celestial cues. Upon migration to different environments, birds have to adapt as their circadian and circannual rhythms are affected. One paper discusses the works of Wynne-Edwards, Aschoff and Wever, and Leopold and Eynon regarding their observations of bird migration cues. One author describes the vocal behavior in birds, including the dual sound theory where two sound sources can occur in each bronchus. Of interest to many in this paper is the description of the different stages in song development. Other papers discuss the incubation behavior of birds as well as the energetics involved. This book is suitable for zoologists, bird enthusiasts, and avian biologists.

Book Wildlife Review

Download or read book Wildlife Review written by and published by . This book was released on 1958 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Dissertation Abstracts

Download or read book Dissertation Abstracts written by and published by . This book was released on 1960-07 with total page 1080 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Avian Breeding Cycles

Download or read book Avian Breeding Cycles written by R. K. Murton and published by Oxford University Press, USA. This book was released on 1977 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides detailed coverage of the many mechanisms birds have evolved to cope with seasonal variations in the availability of resources. Readers will find discussion of the hypophysial and other endocrine systems, the role of hormones in reproductive behavior, energy budgets in relation to reproduction, egg and clutch size, breeding seasons, circadian and ultradian rhythms and their control, sexual selection, and the pair bond. Factors which influence avian survival rates are distinguished from the processes of population dynamics, and some constraints on evolutionary change are considered.

Book Acta

    Book Details:
  • Author :
  • Publisher :
  • Release : 1976
  • ISBN :
  • Pages : 792 pages

Download or read book Acta written by and published by . This book was released on 1976 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Assessing Population Structure and Migratory Patterns of White throated Sparrow  Zonotrichia Albicollis  Breeding Populations in Western Canada

Download or read book Assessing Population Structure and Migratory Patterns of White throated Sparrow Zonotrichia Albicollis Breeding Populations in Western Canada written by Marcelo Mora and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The objective of the present study was to investigate the genetic and migratory differences among White-throated Sparrow populations in western Canada in order to locate the presence of a migratory divide. Deuterium isotopes and molecular markers were used to assess the migratory differences between sparrows west (Central Interior BC) and east (Peace Region BC) of the Continental Divide. Head feather isotopes showed that both populations are overwinter wintering in either the Pacific Coast, New Mexico/Arizona or Colorado/Kansas areas. Microsatellites and mitochondrial markers did not show genetic structure among populations, however tail feather isotopes were significantly different. Analysis of migratory samples is congruent with Peace region birds migrating east of the divide. The Central Interior birds were not detected in any migratory monitoring locations. Data of the present study is congruent with a migratory divide and an east/west migration pattern between Central Interior and the Peace Region populations."--P. ii.

Book Avian Biology

    Book Details:
  • Author : Donald Sankey Farner
  • Publisher :
  • Release : 1971
  • ISBN :
  • Pages : 560 pages

Download or read book Avian Biology written by Donald Sankey Farner and published by . This book was released on 1971 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vol. III includes information on birds eyes and vision.

Book Animal Behaviour Abstracts

Download or read book Animal Behaviour Abstracts written by and published by . This book was released on 1995 with total page 746 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Behavioural Biology Abstracts

Download or read book Behavioural Biology Abstracts written by and published by . This book was released on 1980 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: