Effects of competition, colonization, and extinction on rodent species diversity
| Autor: | James H. Brown, Thomas J. Valone |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Competitive Behavior
Multidisciplinary Extinction Rodent Ecology media_common.quotation_subject Population Dynamics Biodiversity Arizona Species diversity Metapopulation Rodentia Biology Competition (biology) biology.animal Animals Colonization Ecosystem Dipodomys Desert Climate media_common Probability |
| Zdroj: | Science (New York, N.Y.). 267(5199) |
| ISSN: | 0036-8075 |
| Popis: | Analyses of long-term experimental data from the Chihuahuan desert revealed that species diversity of other rodents was higher on plots from which kangaroo rats (Dipodomys spp.) had been removed. The difference was due to consistently higher colonization and lower extinction probabilities of small granivorous rodents in the absence of competitively dominant kangaroo rats. The results of this ecosystem experiment demonstrate the importance of both competitive exclusion and metapopulation dynamics for biological diversity in a natural community. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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