The interplay among prey preference, nutrient enrichment and stability in an omnivory system

Food webs usually display an intricate mix of trophic interactions where multiple prey are common. In this context omnivory has been the subject of intensive analysis regarding food web stability and structure. In a three species omnivory setting it is shown that the modeling of prey preference by t...

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Bibliographic Details
Published in:Brazilian journal of biology 2009-11, Vol.69 (4), p.1027-1035
Main Authors: Faria, L D B, Costa, M I S
Format: Article
Language:English
Subjects:
Animals
BIOLOGY
Ecosystem
Food Chain
Food Preferences
Models, Biological
nutrient enrichment
omnivory
Predatory Behavior
prey preference
stability
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Summary:Food webs usually display an intricate mix of trophic interactions where multiple prey are common. In this context omnivory has been the subject of intensive analysis regarding food web stability and structure. In a three species omnivory setting it is shown that the modeling of prey preference by the top predator may exert a strong influence on the short as well as on the long term dynamics of the respective food web. Clearly, this has implications concerning the stability and the structure of omnivory systems under disturbances such as nutrient enrichment.
ISSN:1519-6984
1678-4375
1678-4375
1519-6984
DOI:10.1590/S1519-69842009000500006