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Habitat islands and the equilibrium theory of island biogeography: testing some predictions

Oecologia

By:
,
DOI: 10.1007/BF00376947

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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.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Habitat islands and the equilibrium theory of island biogeography: testing some predictions
Series title:
Oecologia
DOI:
10.1007/BF00376947
Volume
75
Issue:
3
Year Published:
1988
Language:
English
Contributing office(s):
National Wetlands Research Center
Description:
p. 426-429
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
426
Last page:
429
Number of Pages:
4