The role of variability and risk on the persistence of shared-enemy, predator-prey assemblages.
The role of indirect effects such as apparent competition in structuring predator-prey assemblages has recently received empirical attention. That one prey species can be excluded by the impact of a shared-enemy contrasts with the known diversity of multispecies predator-prey interactions. Here, the...
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| Formato: | Journal article |
| Idioma: | English |
| Publicado: |
2003
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| _version_ | 1826298107532410880 |
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| author | Bonsall, M |
| author_facet | Bonsall, M |
| author_sort | Bonsall, M |
| collection | OXFORD |
| description | The role of indirect effects such as apparent competition in structuring predator-prey assemblages has recently received empirical attention. That one prey species can be excluded by the impact of a shared-enemy contrasts with the known diversity of multispecies predator-prey interactions. Here, the role of predator foraging among patches of two different prey species is examined as a mechanism that can mediate coexistence in multispecies prey-predator assemblages. Specifically, models of host-parasitoid interactions are constructed to analyse how different types of aggregative behaviour (generated by host-dependent and host-independent responses) affect persistence of the assemblage. How the distribution of hosts and the response of the parasitoid to these distributions can influence coexistence is shown. A generic explanation for coexistence suggests that it is the variability rather than the precise functional relationship that is critical for coexistence under shared-enemy interactions. |
| first_indexed | 2024-03-07T04:41:48Z |
| format | Journal article |
| id | oxford-uuid:d1e6a99c-f04b-44fc-863e-af44e1b557b7 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T04:41:48Z |
| publishDate | 2003 |
| record_format | dspace |
| spelling | oxford-uuid:d1e6a99c-f04b-44fc-863e-af44e1b557b72022-03-27T08:00:04ZThe role of variability and risk on the persistence of shared-enemy, predator-prey assemblages.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:d1e6a99c-f04b-44fc-863e-af44e1b557b7EnglishSymplectic Elements at Oxford2003Bonsall, MThe role of indirect effects such as apparent competition in structuring predator-prey assemblages has recently received empirical attention. That one prey species can be excluded by the impact of a shared-enemy contrasts with the known diversity of multispecies predator-prey interactions. Here, the role of predator foraging among patches of two different prey species is examined as a mechanism that can mediate coexistence in multispecies prey-predator assemblages. Specifically, models of host-parasitoid interactions are constructed to analyse how different types of aggregative behaviour (generated by host-dependent and host-independent responses) affect persistence of the assemblage. How the distribution of hosts and the response of the parasitoid to these distributions can influence coexistence is shown. A generic explanation for coexistence suggests that it is the variability rather than the precise functional relationship that is critical for coexistence under shared-enemy interactions. |
| spellingShingle | Bonsall, M The role of variability and risk on the persistence of shared-enemy, predator-prey assemblages. |
| title | The role of variability and risk on the persistence of shared-enemy, predator-prey assemblages. |
| title_full | The role of variability and risk on the persistence of shared-enemy, predator-prey assemblages. |
| title_fullStr | The role of variability and risk on the persistence of shared-enemy, predator-prey assemblages. |
| title_full_unstemmed | The role of variability and risk on the persistence of shared-enemy, predator-prey assemblages. |
| title_short | The role of variability and risk on the persistence of shared-enemy, predator-prey assemblages. |
| title_sort | role of variability and risk on the persistence of shared enemy predator prey assemblages |
| work_keys_str_mv | AT bonsallm theroleofvariabilityandriskonthepersistenceofsharedenemypredatorpreyassemblages AT bonsallm roleofvariabilityandriskonthepersistenceofsharedenemypredatorpreyassemblages |