Download or read book The Effects of Social Status on Feather Growth Rate in Wintering White throated Sparrows Zonotrichia Albicollis written by Dana Michelle Hawley and published by . This book was released on 1999 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effects of Prior Residence on Social Rank and Contest Outcome in Wintering Flocks of White throated Sparrows Zonotrichia Albicollis written by Emilie Catherine Snell-Rood and published by . This book was released on 2002 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Recurrent Inclement Winter Weather Cues on White throated Sparrows Zonotrichia Albicollis written by Andrea Cathryn Boyer and published by . This book was released on 2015 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate change has been linked to an increasing frequency of inclement weather and winter storms. As such, it is important to understand the effects changing weather patterns have on avian species. I investigated the effects of recurrent inclement winter weather cues on glucocorticoid hormones and behaviour of a native Canadian songbird, white-throated sparrows (Zonotrichia albicollis). I used a hypobaric climatic wind tunnel to simulate storms by altering barometric pressure and temperature accordingly, and measured behavioural responses, body composition, and baseline corticosterone levels in birds exposed, or not exposed, to weekly simulated storms. After environmental manipulations, experimental birds had significantly higher fat and lean masses. Baseline corticosterone levels decreased over time in both groups, and time spent at food cups increased over time in both groups as well. Thus, although manipulations did not have a detectable effect on baseline corticosterone, it did affect body composition. This research provides novel experimental evidence that birds detect changing weather patterns and respond appropriately, and indicates that repeated exposure to inclement weather cues directly affects birds' energy reserves.

Download or read book Causes and Consequences of Social Dominance in Wintering White throated Sparrows written by Walter H. Piper and published by . This book was released on 1988 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecology Abstracts written by and published by . This book was released on 1996 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coverage: 1982- current; updated: monthly. This database covers current ecology research across a wide range of disciplines, reflecting recent advances in light of growing evidence regarding global environmental change and destruction. Major ares of subject coverage include: Algae/lichens, Animals, Annelids, Aquatic ecosystems, Arachnids, Arid zones, Birds, Brackish water, Bryophytes/pteridophytes, Coastal ecosystems, Conifers, Conservation, Control, Crustaceans, Ecosyst em studies, Fungi, Grasses, Grasslands, High altitude environments, Human ecology, Insects, Legumes, Mammals, Management, Microorganisms, Molluscs, Nematodes, Paleo-ecology, Plants, Pollution studies, Reptiles, River basins, Soil, TAiga/tundra, Terrestrial ecosystems, Vertebrates, Wetlands, Woodlands.

Download or read book The Effects of Weather Variables on the Activity Patterns of Caged White throated Sparrows Zonotrichia Albicollis written by Sheila Diane Hulsey and published by . This book was released on 1980 with total page 110 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 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:

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.

Download or read book Gaseous Metabolism and Heart Rate of the White throated Sparrow Zonotrichia Albicollis written by Marsha Evon Fanning and published by . This book was released on 1973 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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:

Download or read book Thyroidal Effects on the Oxidative Metabolism of the White throated Sparrow Zonotrichia Albicollis written by Thomas P. Dresser and published by . This book was released on 1968 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Prolactin on Gonadal Growth in the White throated Sparrow Zonotrichia Albicollis and Several Other Avian Species written by Jerry William Joseph Dusseau and published by . This book was released on 1966 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Some Effects of Prolactin and Gonadotropins on Respiratory Rates of Liver and Muscle Tissue in the White throated Sparrow Zonotrichia Albicollis written by Barbara C. Dangman and published by . This book was released on 1968 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effect of Temperature and Exercise on Body Weight and Energy Intake of the White throated Sparrow Zonotrichia Albicollis written by John Evangelos Kontogiannis and published by . This book was released on 1965 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Differential Migration Molt and Departure Date in White throated Sparrows Zonotrichia Albicollis written by Kendell Jenkins and published by . This book was released on 2001 with total page 132 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: