The Dynamics of the Schoener-Polis-Holt model of Intra-Guild Predation
Intraguild predation occurs when one species (theintraguild predator) predates on and competes with another species(the intraguild prey). A classic model of this interaction wasintroduced by Gary Polis and Robert Holt building on a model ofcompeting species by Thomas Schoener. A global analysis reve...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
AIMS Press
2005-02-01
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| Series: | Mathematical Biosciences and Engineering |
| Subjects: | |
| Online Access: | https://www.aimspress.com/article/doi/10.3934/mbe.2005.2.279 |
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| Summary: | Intraguild predation occurs when one species (theintraguild predator) predates on and competes with another species(the intraguild prey). A classic model of this interaction wasintroduced by Gary Polis and Robert Holt building on a model ofcompeting species by Thomas Schoener. A global analysis reveals thatthis model exhibits generically six dynamics: extinction of one orboth species; coexistence about a globally stable equilibrium;contingent exclusion in which the first established species preventsthe establishment of the other species; contingent coexistence inwhich coexistence or displacement of the intraguild prey depend oninitial conditions; exclusion of the intraguild prey; and exclusionof the intraguild predator. Implications for biological control andcommunity ecology are discussed. |
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| ISSN: | 1551-0018 |