Busca avançada
Ano de início
Entree
(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Can fiddler crabs detect underwater predators? A laboratory test with Leptuca thayeri

Texto completo
Autor(es):
De Grande, Fernando Rafael [1] ; Cannicci, Stefano [2, 3, 4] ; Costa, Tania Marcia [1, 5]
Número total de Autores: 3
Afiliação do(s) autor(es):
[1] Sao Paulo State Univ UNESP, Botucatu Biosci Inst, Postgrad Program Biol Sci Zool, BR-18618000 Botucatu, SP - Brazil
[2] Univ Hong Kong, Swire Inst Marine Sci, Pokfulam Rd, Hong Kong, Hong Kong - Peoples R China
[3] Univ Hong Kong, Sch Biol Sci, Pokfulam Rd, Hong Kong, Hong Kong - Peoples R China
[4] Univ Florence, Dept Biol, Via Madonna Piano 6, I-50019 Florence - Italy
[5] Sao Paulo State Univ UNESP, Biosci Inst, Lab Ecol & Anim Behav, Coastal Campus, BR-11330900 Sao Vicente, SP - Brazil
Número total de Afiliações: 5
Tipo de documento: Artigo Científico
Fonte: ETHOLOGY ECOLOGY & EVOLUTION; v. 31, n. 1, p. 86-97, JAN 2 2019.
Citações Web of Science: 0
Resumo

Fiddler crabs are intertidal organisms well known to be highly adapted to low tide activity, thus a number of researches have studied their physiological, behavioral and sensory adaptations to such a tidal phase. However, recent evidences showed that some fiddler crabs are the main food item of fish, suggesting that they could also be active underwater. Based on these preliminary observations, we designed laboratory trials aimed to investigate the ability to detect underwater predators in Leptuca thayeri, across sexes and life stages. We tested a combination of chemical and visual cues, using the predator fish Sphoeroides greeleyi, and, as a control, the non-predator fish Mugil curema. Leptuca thayeri detected the presence of chemical cues coming from the predator fish, although significant differences between adults and juveniles were observed. Adults of L. thayeri remained within their burrows and avoided predator exposition, while juveniles were bold and even increased their activity on the sediment surface. We suggest that juvenile crabs' boldness could be explained by a predator inspection behavior, which allows them to gather information about the possible risk of different predatory species, while experienced adults reduce predation risk recognizing the predator itself. (AU)

Processo FAPESP: 13/06472-1 - Efeitos da pressão predatória sobre o ritmo de atividade do caranguejo-chama-maré Uca thayeri (Brachyura, Ocypodidae)
Beneficiário:Fernando Rafael de Grande
Modalidade de apoio: Bolsas no Brasil - Iniciação Científica
Processo FAPESP: 16/08687-3 - Vinda de pesquisador visitante na área de ecologia e fisiologia de organismos intertidais - Dr. Stefano Cannicci
Beneficiário:Tânia Marcia Costa
Modalidade de apoio: Auxílio à Pesquisa - Pesquisador Visitante - Internacional
Processo FAPESP: 10/09763-9 - Ecologia comportamental de caranguejos Ocypodoidea
Beneficiário:Tânia Marcia Costa
Modalidade de apoio: Auxílio à Pesquisa - Regular