| Abstract: | Species-area data from a study of marsh birds are used to test five predictions generated by the equilibrium theory of island biogeography. Three predictions are supported: we found a significant species-area relationship, a non-zero level of turnover, and a variance-mean ratio of 0.5. One prediction is rejected: the extinction rates were not greater on small islands. The results of one test are equivocal: the number of species on each island was not always the same. As Gilbert (1980) suggests, a strong species-area relationship alone does not validate the theory. The avian communities we studied were on habitat islands, not true islands, and underwent complete extinction annually. Thus caution must be used before applying the theory to these and other habitat islands. |
| Genre: | Article |
| ProdID: | 1002338 |
| Citation Author: | Brown, M.; Dinsmore, J.J. |
| Citation Contributing Office: | National Wetlands Research Center |
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| Citation End Page: | 429 |
| Citation Issue: | 3 |
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| Citation Language: | English |
| Citation Larger Work Title: | Oecologia |
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| Citation Month: | APR |
| Citation No Pagination: | |
| Citation Number Of Pages: | 4 |
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| Citation Phsyical Description: | p. 426-429 |
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| Citation Search Results Text: | Habitat islands and the equilibrium theory of island biogeography: testing some predictions; 1988; Article; Journal; Oecologia; Brown, M.; Dinsmore, J.J. |
| Citation Start Page: | 426 |
| Citation Volume: | 75 |
| Citation Year: | 1988 |
| Type: | citation/reference |
| Text: | Habitat islands and the equilibrium theory of island biogeography: testing some predictions; 1988; Article; Journal; Oecologia; Brown, M.; Dinsmore, J.J. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (INDEX PAGE): | http://dx.doi.org/10.1007/BF00376947 |
| Date Other: | Fri, 1 Jan 1988 00:00 -0600 |
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