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Full-Text Articles in Animal Sciences
Global Warming And Population Responses Among Great Plains Birds, Paul A. Johnsgard
Global Warming And Population Responses Among Great Plains Birds, Paul A. Johnsgard
Zea E-Books Collection
Based on an analysis of 47 years (1967–2014) of Audubon Christmas Bird Counts (CBC), evidence for population changes and shifts in early winter (late December) ranges of nearly 150 species of birds in the Great Plains states is summarized, a region defined as including the Dakotas, Nebraska, Kansas, Oklahoma, and the Texas panhandle. The rationale for this study had its origins in Terry Root’s 1988 Atlas of North American Wintering Birds. Root’s landmark study provided a baseline for evaluating the nationwide winter distributions of 253 North American birds in the mid-20th century, using data from the National Audubon Society’s …
Birds Of The Central Platte River Valley And Adjacent Counties, Mary Bomberger Brown, Paul A. Johnsgard
Birds Of The Central Platte River Valley And Adjacent Counties, Mary Bomberger Brown, Paul A. Johnsgard
Zea E-Books Collection
The central Platte River Valley region of Nebraska is described ecologically, and defined as encompassing 11 counties and nearly 10,000 square miles, and extending about 120 miles from the western edge of Lincoln County to the eastern edge of Merrick County. At its center is the Platte River, the historic spring staging area for Sandhill and Whooping cranes, five species of geese, and millions of waterfowl and water-dependent birds, in addition to providing the breeding habitats for more than 100 other bird species. Collectively, at least 373 bird species have been reported from the Central Platte Valley, making it the …