| Abstract: | Wintering birds were captured with mist nets at 12 pairs of forested sites in the New World tropics in 1984 and 1985 to compare populations in small isolated woodlands (generally 5-50 ha) with those in extensive forests (> 1,000 ha). Net-hours of effort were similar in large and small sites, as were total birds captured and banded, but species composition was very different. Members of the Todidae, Dendrocolaptidae, Formicariidae and Thraupinae were significantly more common in extensive forest than in small isolated tracts, indicating that these birds are especially vulnerable to effects of forest fragmentation. However, in winter many species of North American migrants, even species that are restricted to extensive forest during the breeding season, were just as common in small forest fragments as in extensive forest. A high percentage of the North American migrants banded in January 1984 (40 to 50 % for some species) were recaptured in 1985. |
| Genre: | Article |
| ProdID: | 5222175 |
| Citation Author: | Robbins, C.S.; Dowell, B.A.; Dawson, D.K.; Colon, J.; Espinoza, F.; Rodriguez, J.; Sutton, R.; Vargas, T. |
| Citation Contributing Office: | Patuxent Wildlife Research Center |
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| Citation End Page: | 292 |
| Citation Issue: | 2 |
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| Citation Language: | English |
| Citation Larger Work Title: | Acta Oecologica Oecologia Generalis |
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| Citation Number Of Pages: | 8 |
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| Citation Phsyical Description: | 285-292 |
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| Citation Public Comments: | Bird census and atlas studies : Actes de la IXe Conference internationale d‘Ornithologie quantitative. Proceedings of the IXth International Conference on Bird Census and Atlas Work, 9th, 1985, Dijon, France / Jacques Blondel, Bernard Frochot, editors. |
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| Citation Search Results Text: | Comparison of neotropical winter bird populations in isolated patches versus extensive forest; 1987; Article; Journal; Acta Oecologica Oecologia Generalis; Robbins, C.S.; Dowell, B.A.; Dawson, D.K.; Colon, J.; Espinoza, F.; Rodriguez, J.; Sutton, R.; Vargas, T. |
| Citation Start Page: | 285 |
| Citation Volume: | 8 |
| Citation Year: | 1987 |
| Type: | citation/reference |
| Text: | Comparison of neotropical winter bird populations in isolated patches versus extensive forest; 1987; Article; Journal; Acta Oecologica Oecologia Generalis; Robbins, C.S.; Dowell, B.A.; Dawson, D.K.; Colon, J.; Espinoza, F.; Rodriguez, J.; Sutton, R.; Vargas, T. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Wed, 16 Jun 2010 12:19 -0500 |
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