| Abstract: | We summarize population trends for grassland birds from 1966 to 1996 using data from the North American Breeding Bird Survey. Collectively, grassland birds showed the smallest percentage of species that increased of any Breeding Bird Survey bird group, and population declines prevailed throughout most of North America. Although 3 grassland bird species experienced significant population increases between 1966 and 1996, 13 species declined significantly and 9 exhibited non-significant trend estimates. We summarize the temporal and geographic patterns of the trends for grassland bird species and discuss factors that have contributed to these trends. |
| Genre: | Book chapter |
| ProdID: | 5210981 |
| Citation Author: | Peterjohn, B.; Sauer, J.R. |
| Citation Contributing Office: | Patuxent Wildlife Research Center |
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| Citation Editor: | Vickery, Peter D.; Herkert, James R. (editors) |
| Citation End Page: | 44 |
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| Citation Language: | English |
| Citation Larger Work Title: | Ecology and conservation of grassland birds of the western hemisphere |
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| Citation No Pagination: | |
| Citation Number Of Pages: | 299 |
| Citation Online Only Flag: | |
| Citation Phsyical Description: | 299 |
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| Citation Public Comments: | Summary also in Spanish |
| Citation Publisher: | |
| Citation Series: | Studies in Avian Biology |
| Citation Series Code: | |
| Citation Series Number: | 19 |
| Citation Search Results Text: | Population status of North American grassland birds from the North American Breeding Bird Survey; 1999; Book chapter; 19; Ecology and conservation of grassland birds of the western hemisphere; Peterjohn, B.; Sauer, J.R. |
| Citation Start Page: | 27 |
| Citation Volume: | |
| Citation Year: | 1999 |
| Type: | citation/reference |
| Text: | Population status of North American grassland birds from the North American Breeding Bird Survey; 1999; Book chapter; 19; Ecology and conservation of grassland birds of the western hemisphere; Peterjohn, B.; Sauer, J.R. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Tue, 9 Jun 2009 09:23 -0500 |
| Publisher: | |
