Enrichment and ecosystem stability: effect of toxic food.
Enrichment in resource availability theoretically destabilizes predator-prey dynamics (the paradox of enrichment). However, a minor change in the resource stoichiometry may make a prey toxic for the predator, and the presence of toxic prey affects the dynamics significantly. Here, theoretically we e...
| Main Authors: | , |
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| Format: | Journal article |
| Language: | English |
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2007
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| _version_ | 1797102035142705152 |
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| author | Roy, S Chattopadhyay, J |
| author_facet | Roy, S Chattopadhyay, J |
| author_sort | Roy, S |
| collection | OXFORD |
| description | Enrichment in resource availability theoretically destabilizes predator-prey dynamics (the paradox of enrichment). However, a minor change in the resource stoichiometry may make a prey toxic for the predator, and the presence of toxic prey affects the dynamics significantly. Here, theoretically we explore how, at increased carrying capacity, a toxic prey affects the oscillation or destabilization of predator-prey dynamics, and how its presence influences the growth of the predator as well as that of a palatable prey. Mathematical analysis determines the bounds on the food toxicity that allow the coexistence of a predator along with a palatable and a toxic prey. The overall results demonstrate that toxic food counteracts oscillation (destabilization) arising from enrichment of resource availability. Moreover, our results show that, at increased resource availability, toxic food that acts as a source of extra mortality may increase the abundance of the predator as well as that of the palatable prey. |
| first_indexed | 2024-03-07T06:00:17Z |
| format | Journal article |
| id | oxford-uuid:ebf2e22f-98f6-47f5-b2df-cc97ba1d27fb |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T06:00:17Z |
| publishDate | 2007 |
| record_format | dspace |
| spelling | oxford-uuid:ebf2e22f-98f6-47f5-b2df-cc97ba1d27fb2022-03-27T11:13:44ZEnrichment and ecosystem stability: effect of toxic food.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:ebf2e22f-98f6-47f5-b2df-cc97ba1d27fbEnglishSymplectic Elements at Oxford2007Roy, SChattopadhyay, JEnrichment in resource availability theoretically destabilizes predator-prey dynamics (the paradox of enrichment). However, a minor change in the resource stoichiometry may make a prey toxic for the predator, and the presence of toxic prey affects the dynamics significantly. Here, theoretically we explore how, at increased carrying capacity, a toxic prey affects the oscillation or destabilization of predator-prey dynamics, and how its presence influences the growth of the predator as well as that of a palatable prey. Mathematical analysis determines the bounds on the food toxicity that allow the coexistence of a predator along with a palatable and a toxic prey. The overall results demonstrate that toxic food counteracts oscillation (destabilization) arising from enrichment of resource availability. Moreover, our results show that, at increased resource availability, toxic food that acts as a source of extra mortality may increase the abundance of the predator as well as that of the palatable prey. |
| spellingShingle | Roy, S Chattopadhyay, J Enrichment and ecosystem stability: effect of toxic food. |
| title | Enrichment and ecosystem stability: effect of toxic food. |
| title_full | Enrichment and ecosystem stability: effect of toxic food. |
| title_fullStr | Enrichment and ecosystem stability: effect of toxic food. |
| title_full_unstemmed | Enrichment and ecosystem stability: effect of toxic food. |
| title_short | Enrichment and ecosystem stability: effect of toxic food. |
| title_sort | enrichment and ecosystem stability effect of toxic food |
| work_keys_str_mv | AT roys enrichmentandecosystemstabilityeffectoftoxicfood AT chattopadhyayj enrichmentandecosystemstabilityeffectoftoxicfood |