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Simulating Ucides cordatus population recovery on fished grounds. In: Mangrove dynamics and management in North Brazil. Ecological Studies 211

  • C. Piou
  • U. Berger
  • K. Diele

Abstract

The recovery of fishing grounds of Ucides cordatus populations in the Caeté Peninsula is a recurrent process due to individual movements. However, these movements could not be observed in the field. A pattern-oriented modeling approach was used to infer on U. cordatus individual behaviors from population-level observations. An individual-based model was specifically developed for this purpose. The model results informed that the reason of decision of movement of individual crabs was probably a local density-dependent process. Also, fitting the model to field spatial distribution patterns, this process could be seen as an intra-specific competition for nearby resources. It was hypothesized that the spatially structured organization of U. cordatus populations act as hierarchical buffer systems with nonfished high-density areas filling back the fishing grounds at different speeds. Density-induced movement may therefore be an important aspect for the sustainability of the U. cordatus fishery.

Zitiere diese Aktivität

Piou C., Berger U. and Diele K. (2010) Simulating Ucides cordatus population recovery on fished grounds. In: Saint-Paul U. & Schneider H. (eds.). Mangrove dynamics and management in North Brazil. Ecological Studies 211 (pp. 299-303). 10.1007/978-3-642-13457-9_20

Details

Datum 01.01.2010
Seiten 299-303
Buchtitel Mangrove dynamics and management in North Brazil. Ecological Studies 211
Herausgeber Saint-Paul U. and Schneider H.
ISBN 978-3-642-13456-2
ISSN 0070-8356
Open Access Closed Access
Open Access Status Closed Access
Eprints_link https://cris.leibniz-zmt.de/id/eprint/974

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