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Geographic patterns in population trends of neotropical migrants in North America

By:
,
Edited by:
John M. Hagan III, D.W. Johnston

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Abstract

We use the route-regression method to estimate the population trends of 100 species of Neotropical migrants using data from the North American Breeding Bird Survey (BBS). We examine long-term (1966-1988) and recent (1978-1988) trends. In the long-term, more species of Neotropical migrants were increasing than were decreasing in the eastern and western parts of the continent, but recent trends indicate that more species decreased than increased in their population index in the east. Recent population declines in the eastern part of the continent were primarily associated with bird species that breed in forested habitat. No association was detected between changes in forest acreages by state and population trends of Neotropical migrants in the United States and Canada.

Additional Publication Details

Publication type:
Book chapter
Publication Subtype:
Book Chapter
Title:
Geographic patterns in population trends of neotropical migrants in North America
Year Published:
1992
Language:
English
Publisher:
Smithsonian Institution Press
Publisher location:
Washington, DC
Contributing office(s):
Patuxent Wildlife Research Center
Description:
xiii, 609
Larger Work Type:
Book
Larger Work Subtype:
Other Government Series
Larger Work Title:
Ecology and Conservation of Neotropical Migrant Landbirds
First page:
26
Last page:
42