Confronting the paradox of enrichment to the metacommunity perspective.
Resource enrichment can potentially destabilize predator-prey dynamics. This phenomenon historically referred as the "paradox of enrichment" has mostly been explored in spatially homogenous environments. However, many predator-prey communities exchange organisms within spatially heterogene...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Public Library of Science (PLoS)
2013-01-01
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| Series: | PLoS ONE |
| Online Access: | https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24358242/?tool=EBI |
| _version_ | 1818575138364325888 |
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| author | Céline Hauzy Grégoire Nadin Elsa Canard Isabelle Gounand Nicolas Mouquet Bo Ebenman |
| author_facet | Céline Hauzy Grégoire Nadin Elsa Canard Isabelle Gounand Nicolas Mouquet Bo Ebenman |
| author_sort | Céline Hauzy |
| collection | DOAJ |
| description | Resource enrichment can potentially destabilize predator-prey dynamics. This phenomenon historically referred as the "paradox of enrichment" has mostly been explored in spatially homogenous environments. However, many predator-prey communities exchange organisms within spatially heterogeneous networks called metacommunities. This heterogeneity can result from uneven distribution of resources among communities and thus can lead to the spreading of local enrichment within metacommunities. Here, we adapted the original Rosenzweig-MacArthur predator-prey model, built to study the paradox of enrichment, to investigate the effect of regional enrichment and of its spatial distribution on predator-prey dynamics in metacommunities. We found that the potential for destabilization was depending on the connectivity among communities and the spatial distribution of enrichment. In one hand, we found that at low dispersal regional enrichment led to the destabilization of predator-prey dynamics. This destabilizing effect was more pronounced when the enrichment was uneven among communities. In the other hand, we found that high dispersal could stabilize the predator-prey dynamics when the enrichment was spatially heterogeneous. Our results illustrate that the destabilizing effect of enrichment can be dampened when the spatial scale of resource enrichment is lower than that of organismss movements (heterogeneous enrichment). From a conservation perspective, our results illustrate that spatial heterogeneity could decrease the regional extinction risk of species involved in specialized trophic interactions. From the perspective of biological control, our results show that the heterogeneous distribution of pest resource could favor or dampen outbreaks of pests and of their natural enemies, depending on the spatial scale of heterogeneity. |
| first_indexed | 2024-12-15T00:36:16Z |
| format | Article |
| id | doaj.art-c57516f23bba4d06bcc04047e68e9d4b |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-12-15T00:36:16Z |
| publishDate | 2013-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-c57516f23bba4d06bcc04047e68e9d4b2022-12-21T22:41:48ZengPublic Library of Science (PLoS)PLoS ONE1932-62032013-01-01812e8296910.1371/journal.pone.0082969Confronting the paradox of enrichment to the metacommunity perspective.Céline HauzyGrégoire NadinElsa CanardIsabelle GounandNicolas MouquetBo EbenmanResource enrichment can potentially destabilize predator-prey dynamics. This phenomenon historically referred as the "paradox of enrichment" has mostly been explored in spatially homogenous environments. However, many predator-prey communities exchange organisms within spatially heterogeneous networks called metacommunities. This heterogeneity can result from uneven distribution of resources among communities and thus can lead to the spreading of local enrichment within metacommunities. Here, we adapted the original Rosenzweig-MacArthur predator-prey model, built to study the paradox of enrichment, to investigate the effect of regional enrichment and of its spatial distribution on predator-prey dynamics in metacommunities. We found that the potential for destabilization was depending on the connectivity among communities and the spatial distribution of enrichment. In one hand, we found that at low dispersal regional enrichment led to the destabilization of predator-prey dynamics. This destabilizing effect was more pronounced when the enrichment was uneven among communities. In the other hand, we found that high dispersal could stabilize the predator-prey dynamics when the enrichment was spatially heterogeneous. Our results illustrate that the destabilizing effect of enrichment can be dampened when the spatial scale of resource enrichment is lower than that of organismss movements (heterogeneous enrichment). From a conservation perspective, our results illustrate that spatial heterogeneity could decrease the regional extinction risk of species involved in specialized trophic interactions. From the perspective of biological control, our results show that the heterogeneous distribution of pest resource could favor or dampen outbreaks of pests and of their natural enemies, depending on the spatial scale of heterogeneity.https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24358242/?tool=EBI |
| spellingShingle | Céline Hauzy Grégoire Nadin Elsa Canard Isabelle Gounand Nicolas Mouquet Bo Ebenman Confronting the paradox of enrichment to the metacommunity perspective. PLoS ONE |
| title | Confronting the paradox of enrichment to the metacommunity perspective. |
| title_full | Confronting the paradox of enrichment to the metacommunity perspective. |
| title_fullStr | Confronting the paradox of enrichment to the metacommunity perspective. |
| title_full_unstemmed | Confronting the paradox of enrichment to the metacommunity perspective. |
| title_short | Confronting the paradox of enrichment to the metacommunity perspective. |
| title_sort | confronting the paradox of enrichment to the metacommunity perspective |
| url | https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24358242/?tool=EBI |
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