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Mathematical model of the fiddler crab (genus Uca) population dynamics

Grant number: 14/20970-7
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): December 01, 2014
Effective date (End): November 30, 2015
Field of knowledge:Physical Sciences and Mathematics - Physics
Principal Investigator:Fabio Stucchi Vannucchi
Grantee:Pedro Henrique Areco Gomes Moura
Home Institution: Instituto de Biociências (IB-CLP). Universidade Estadual Paulista (UNESP). Campus Experimental do Litoral Paulista. São Vicente , SP, Brazil

Abstract

Crabs of the genus Uca Leach, 1814 (Crustacea: Decapoda: Ocypodidae), also called fiddlers crabs, occur in estuaries along the Brazilian coast and through feeding and digging activities, contribute to the regulation of the mangrove ecosystem. In this work we will analyze the dynamics of a community of Uca leptodactyla Rathbun, 1898 and Uca uruguayensis Nobili, 1901 present in estuarine environments of Santos, Brazil. For this, a mathematical model will be formulated in terms of a system of coupled ordinary differential equations for the involved populations, and this system will be fitted to the available experimental data. The aim is to analyze the factors that regulate these crabs communities, contributing to the knowledge of their ecology.