Food web dynamics in a seasonally varying wetland
A spatially explicit model is developed to simulate the small fish communityand its underlying food web, in the freshwater marshes of the Everglades.The community is simplified to a few small fish species feeding onperiphyton and invertebrates. Other compartments are detritus, crayfish, anda piscivo...
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| Format: | Article |
| Language: | English |
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AIMS Press
2008-09-01
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| Series: | Mathematical Biosciences and Engineering |
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| Online Access: | https://www.aimspress.com/article/doi/10.3934/mbe.2008.5.877 |
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| author | Donald L. DeAngelis Joel C. Trexler Douglas D. Donalson |
| author_facet | Donald L. DeAngelis Joel C. Trexler Douglas D. Donalson |
| author_sort | Donald L. DeAngelis |
| collection | DOAJ |
| description | A spatially explicit model is developed to simulate the small fish communityand its underlying food web, in the freshwater marshes of the Everglades.The community is simplified to a few small fish species feeding onperiphyton and invertebrates. Other compartments are detritus, crayfish, anda piscivorous fish species. This unit food web model is applied to each ofthe 10,000 spatial cells on a 100 x 100 pixel landscape. Seasonal variationin water level is assumed and rules are assigned for fish movement inresponse to rising and falling water levels, which can cause many spatialcells to alternate between flooded and dry conditions. It is shown thattemporal variations of water level on a spatially heterogeneous landscapecan maintain at least three competing fish species. In addition, theseenvironmental factors can strongly affect the temporal variation of the foodweb caused by top-down control from the piscivorous fish. |
| format | Article |
| id | doaj-art-0b9e75e4cd1341dca83b09d2486c99f0 |
| institution | Kabale University |
| issn | 1551-0018 |
| language | English |
| publishDate | 2008-09-01 |
| publisher | AIMS Press |
| record_format | Article |
| series | Mathematical Biosciences and Engineering |
| spelling | doaj-art-0b9e75e4cd1341dca83b09d2486c99f02025-01-24T01:58:42ZengAIMS PressMathematical Biosciences and Engineering1551-00182008-09-015487788710.3934/mbe.2008.5.877Food web dynamics in a seasonally varying wetlandDonald L. DeAngelis0Joel C. Trexler1Douglas D. Donalson2U.S. Geological Survey and Department of Biology, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33143U.S. Geological Survey and Department of Biology, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33143U.S. Geological Survey and Department of Biology, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33143A spatially explicit model is developed to simulate the small fish communityand its underlying food web, in the freshwater marshes of the Everglades.The community is simplified to a few small fish species feeding onperiphyton and invertebrates. Other compartments are detritus, crayfish, anda piscivorous fish species. This unit food web model is applied to each ofthe 10,000 spatial cells on a 100 x 100 pixel landscape. Seasonal variationin water level is assumed and rules are assigned for fish movement inresponse to rising and falling water levels, which can cause many spatialcells to alternate between flooded and dry conditions. It is shown thattemporal variations of water level on a spatially heterogeneous landscapecan maintain at least three competing fish species. In addition, theseenvironmental factors can strongly affect the temporal variation of the foodweb caused by top-down control from the piscivorous fish.https://www.aimspress.com/article/doi/10.3934/mbe.2008.5.877fish populationspatially explicitfood web modelfish communitydifferential equationseverglades |
| spellingShingle | Donald L. DeAngelis Joel C. Trexler Douglas D. Donalson Food web dynamics in a seasonally varying wetland Mathematical Biosciences and Engineering fish population spatially explicit food web model fish community differential equations everglades |
| title | Food web dynamics in a seasonally varying wetland |
| title_full | Food web dynamics in a seasonally varying wetland |
| title_fullStr | Food web dynamics in a seasonally varying wetland |
| title_full_unstemmed | Food web dynamics in a seasonally varying wetland |
| title_short | Food web dynamics in a seasonally varying wetland |
| title_sort | food web dynamics in a seasonally varying wetland |
| topic | fish population spatially explicit food web model fish community differential equations everglades |
| url | https://www.aimspress.com/article/doi/10.3934/mbe.2008.5.877 |
| work_keys_str_mv | AT donaldldeangelis foodwebdynamicsinaseasonallyvaryingwetland AT joelctrexler foodwebdynamicsinaseasonallyvaryingwetland AT douglasddonalson foodwebdynamicsinaseasonallyvaryingwetland |