The relative importance of substratum characteristics and recruitment in determining the spatial distribution of the fiddler crab Uca uruguayensis Nobili

Ribeiro, Pablo D.; Iribarne, Oscar; Daleo, Pedro

doi:10.1016/j.jembe.2004.09.014

Cited by 47 publications

(66 citation statements)

References 27 publications

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“…Alguns autores têm investigado as causas da distribuição espacial de caranguejos Uca, e sabe-se que inúmeras variáveis abióticas influenciam a distribuição destes animais, tais como: temperatura e salinidades (CRANE 1975), tipo de solo e substrato (THURMAN, 1987;RIBEIRO et al, 2005), nível do substrato em relação à altura da maré (THURMAN, 1987) e presença de vegetação (NOBBS, 2003).…”

Section: Resultsunclassified

Distribuição geográfica potencial de espécies americanas do caranguejo "violinista" (Uca spp.) (Crustacea, Decapoda) com base em modelagem de nicho ecológico

Nabout

Júnior

Bini

et al. 2009

Iheringia, Sér. Zool.

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ABSTRACT. Potential geographical distribution of American species of "fiddler crab" (Uca spp.) (Crustacea, Decapoda) based on ecological niche model. 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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Section: Resultsunclassified

Distribuição geográfica potencial de espécies americanas do caranguejo "violinista" (Uca spp.) (Crustacea, Decapoda) com base em modelagem de nicho ecológico

Nabout

Júnior

Bini

et al. 2009

Iheringia, Sér. Zool.

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“…It was assumed that the crabs live in 30 cm deep holes burrowed in the sediment [22]. The aim of the theoretical calculations was to compare the pressure exerted by the bulldozer (in low water tide) with that exerted by the column of water during the rising tide.…”

Section: European Fiddler Crab (Uca Tangeri)mentioning

confidence: 99%

“…The male can be easily distinguished from the female by its claw (Fig. 4) that can be up to 30 times bigger than the smaller claw [22]. The scrumptious claw fulfils two functions: on the one hand it is used as a weapon against crabs of the same sex during sexual competition, and on the other hand it is also used for winding movements to attract the female crabs.…”

Section: European Fiddler Crab (Uca Tangeri)mentioning

confidence: 99%

Environmental Impact of Beach Nourishment: A Case Study of the Rio San Pedro Beach (SW Spain)~!2010-01-13~!2010-03-29~!2010-06-10~!

Herrera¹,

Gómez-Pina²,

Fages³

et al. 2010

TOOCEAJ

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Abstract:The beaches on the left bank of Rio San Pedro (SW Spain) are in a regressive state because of the human activities of recent decades. With the objective of minimizing the effects of the erosion, the Spanish Coastal Department (Ministry of the Environment) decided that the most suitable solution was to provide sand nourishment. Previously, an environmental impact study (EIS) was carried out on these beaches, and an environmental monitoring campaign was also completed during that nourishment. A new methodology to perform this kind of studies is proposed in the present report. Moreover, a form is proposed for establishing the degree of observance of the EIS. Additionally, discrepancies in opinions on the alleged environmental impact of the sand nourishment on the Uca tangeri (European Fiddler crab), a representative but not protected species that lives in the area of research, led to the development of a complementary study. Therefore, observations, experimentations and calculations were carried out on individuals of this species of crab. It was concluded that there was no significant impact on this crab's population. With respect to the impact of the sand nourishment project, the overall impact was negative but negligible during the nourishment phase. Once the project was finished, the total environmental impact was also negligible but positive overall.

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“…A. Pinheiro exuberância, composição e desenvolvimento arbóreo dos manguezais, que causam alterações subsequentes à densidade populacional dos caranguejos (Matsumasa et al, 1992;Nomann & Pennings, 1998;Amouroux & Tavares, 2005), gerando condições específicas à ocorrência de determinadas espécies desses crustá-ceos (Morrisey et al, 2003). A estrutura populacional de alguns caranguejos também pode ser alterada em função da granulometria e química do sedimento (Ribeiro et al, 2005), podendo se tornar mais arenoso pelo aumento da densidade de caranguejos, ficando, assim, mais suscetível à erosão (Botto & Iribarne, 2000).…”

Section: Introductionunclassified

Protocolos para o monitoramento de habitats bentônicos costeiros - Rede de Monitoramento de Habitat Bentônicos Costeiros - ReBentos

Turra¹,

Denadai²

2015

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The relative importance of substratum characteristics and recruitment in determining the spatial distribution of the fiddler crab Uca uruguayensis Nobili

Cited by 47 publications

References 27 publications

Distribuição geográfica potencial de espécies americanas do caranguejo "violinista" (Uca spp.) (Crustacea, Decapoda) com base em modelagem de nicho ecológico

Distribuição geográfica potencial de espécies americanas do caranguejo "violinista" (Uca spp.) (Crustacea, Decapoda) com base em modelagem de nicho ecológico

Environmental Impact of Beach Nourishment: A Case Study of the Rio San Pedro Beach (SW Spain)~!2010-01-13~!2010-03-29~!2010-06-10~!

Protocolos para o monitoramento de habitats bentônicos costeiros - Rede de Monitoramento de Habitat Bentônicos Costeiros - ReBentos

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