Modeling food webs in Florida Everglades Marshland i

Fred Jopp, Donald L. Deangelis, Hock Lye Koh, Su Yean Teh, Joel C. Trexler, Jiang Jiang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

The fish community in the marshes of the Florida Everglades is subject to huge seasonal fluctuations in the amount of flooded marsh, and thus of habitat. During the wet season, as the flooded area increases, the small fish community spreads across the flooded landscape and grows in population size. During the drying phase, the fish are crowded into smaller areas of permanent water. There they are exploited by higher trophic levels, such as wading birds, piscivorous fish, reptiles, and mammals. We develop a landscape simulation model of the lower trophic level food web that includes the small fish community, in which the various trophic levels are described by differential equations. Annual fluctuations in water level are represented by sinusoidally changing hydrology, resulting in dynamic patterns of flooded and non-flooded areas. In this paper we focus on describing the theoretical framework of the model and an analysis on a scenario with annual water level amplitude of 0.6 m. Within these gradients the fish are allowed to disperse and exploit the different habitat resources. To examine how the trophic levels react to annual changes in the water level, long-term simulations over a period of 10 years are performed. The model takes into account the seasonal flooding and drying over an area of many square kilometers, and predicts biomasses of fish across a heterogeneous landscape over time.

Original languageEnglish (US)
Title of host publicationProceedings of the 5th International Conference on Asian and Pacific Coasts, APAC 2009
PublisherWorld Scientific Publishing Co. Pte Ltd
Pages258-264
Number of pages7
ISBN (Print)9814287962, 9789814287968
StatePublished - Jan 1 2010
Event5th International Conference on Asian and Pacific Coasts, APAC 2009 - Singapore, Singapore
Duration: Oct 13 2009Oct 16 2009

Publication series

NameProceedings of the 5th International Conference on Asian and Pacific Coasts, APAC 2009
Volume1

Other

Other5th International Conference on Asian and Pacific Coasts, APAC 2009
CountrySingapore
CitySingapore
Period10/13/0910/16/09

ASJC Scopus subject areas

  • Ocean Engineering

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  • Cite this

    Jopp, F., Deangelis, D. L., Koh, H. L., Teh, S. Y., Trexler, J. C., & Jiang, J. (2010). Modeling food webs in Florida Everglades Marshland i. In Proceedings of the 5th International Conference on Asian and Pacific Coasts, APAC 2009 (pp. 258-264). (Proceedings of the 5th International Conference on Asian and Pacific Coasts, APAC 2009; Vol. 1). World Scientific Publishing Co. Pte Ltd.