1. TEST OF THE ISLAND BIOGEOGRAPHY THEORY WITH BOULDERS IN A SEAGRASS BED
- Author
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Ana Maria del Pilar Rincon, Camilo B. García, and Valentina Gomez
- Subjects
0106 biological sciences ,Shore ,geography ,geography.geographical_feature_category ,Extinction ,biology ,extinction ,QH301-705.5 ,Insular biogeography ,010604 marine biology & hydrobiology ,habitat size ,Test (biology) ,colonization ,biology.organism_classification ,010603 evolutionary biology ,01 natural sciences ,Seagrass ,Oceanography ,island ,Species richness ,species richness ,Biology (General) ,General Agricultural and Biological Sciences ,Geology - Abstract
We used shore boulders that had been previously colonized, and were scattered in a seagrass bed as models for islands. We tested two predictions of Island Biogeography theory: (1) small boulders harbored fewer species than large boulders, and (2) small boulders had higher rates of extinction than large boulders, as reflected in higher faunal replacement variability. We detected a definite relation between species richness and boulder size although not for all statistical models. We did not confirm higher compositional variability in small boulders.
- Published
- 2020
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