Distribuição geográfica potencial de espécies americanas do caranguejo “violinista” (Uca spp.) (Crustacea, Decapoda) com base em modelagem de nicho ecológico
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Data
2009-03-30
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Fundação Zoobotânica do Rio Grande do Sul
Resumo
The genus Uca Leach, 1814 (fiddler-crabs) is a well-know group characterized by a marked sexual dimorphism. Worldwide, there are 97 species of fiddler crabs described. Here, we predicted the potential geographical distribution of four species of this genus (Uca maracoani Latreille, 1802-1803, U. uruguayensis Nobili, 1901, U. panacea Novak & Salmon, 1974 e U. monilifera Rathbun, 1914), which occur in the American continent coast. Data used in the modeling were compiled from occurrence records available in the literature. We used Maxent and GARP programs for modelling, 10 climatic variables and three topographical variables. All variables were converted to a grid resolution of 0.0417 degrees. In both Maxent and GARP models the predicted geographical distribution of the species was larger than suggested by other observed data works, except for U. monilifera. According to the AUC criterion, the models generated by GARP were better than those obtained from Maxent. Evaluating the two models together, it is recommended conservation plans for species with restricted habitat (U. panaceae and U. monilifera) besides suggesting sampling of U. maracoani in the Brazilian northeast and U. uruguyaensis in the Brazilian southeast.
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Garp, Maxent, Delineamento amostral, Planos de conservação, Garp, Maxent, Sampling plans, Conservation plans
Citação
NABOUT, João Carlos; DE MARCO JÚNIOR, Paulo; BINI, Luis Mauricio; DINIZ FILHO, José Alexandre F. Distribuição geográfica potencial de espécies americanas do caranguejo “violonista” (Uca spp.) (crustácea, decapoda) com base em modelagem de nicho ecológico. Iheringia. Série Zoologia, Porto Alegre, v. 99, n. 1, p. 92-98, mar. 2009.