Scholarship 12/17003-0 - Polimorfismo genético, Ecologia evolutiva - BV FAPESP
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Polymorphism and function in caridean shrimps: habitat use and reproductive tactics in Hippolyte obliquimanus

Grant number: 12/17003-0
Support Opportunities:Scholarships in Brazil - Doctorate
Start date until: December 01, 2012
End date until: February 07, 2017
Field of knowledge:Biological Sciences - Ecology - Applied Ecology
Principal Investigator:Augusto Alberto Valero Flores
Grantee:Rafael Campos Duarte
Host Institution: Centro de Biologia Marinha (CEBIMAR). Universidade de São Paulo (USP). São Sebastião , SP, Brazil
Associated scholarship(s):15/04484-8 - Camouflage by background matching and disruptive colouration in the polymorphic shrimp species Hippolyte obliquimanus, BE.EP.DR

Abstract

The caridean shrimp Hippolyte obliquimanus is a gonochoric species, inhabiting a variety of macroalgal substrates. Populations are comprised by two different color morphotypes, i.e. homogeneous (H) and disruptive (D) individuals. Preliminary results indicated these morphotypes are unevenly distributed between the two most important macroalgal species, and differ in their capacity of color change. H individuals are specialists, remaining in contact with substratum for long time, while D animals are apparently generalist, and are thought to be more mobile. The main objective of this study is to understand how these different morphotypes use intrinsic characteristics, like color, mobility and mating strategies, to make the best of the available habitat resources. The project comprise field surveys, to evaluate temporal variation of algal cover and morphotype distribution among habitats, and both field and laboratory experiments to (i) assess habitat quality by examining morph-specific fitness and predation rates across habitats, and (ii) understand patterns of habitat use by testing habitat selection, substrate colonization, mobility among algal patches and habitat-related reproductive success. Results will be used to discuss the evolution of mating systems in caridean shrimps, mainly the relationship between the selection of alternative reproductive strategies and patterns of habitat use. (AU)

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VEICULO: TITULO (DATA)
VEICULO: TITULO (DATA)

Scientific publications (4)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DUARTE, RAFAEL CAMPOS; STEVENS, MARTIN; VALERO FLORES, AUGUSTO ALBERTO. The adaptive value of camouflage and colour change in a polymorphic prawn. SCIENTIFIC REPORTS, v. 8, . (12/17003-0, 15/04484-8, 15/22258-5)
DUARTE, RAFAEL C.; FLORES, AUGUSTO A. V.; VINAGRE, CATARINA; LEAL, MIGUEL C.. Habitat-dependent niche partitioning between colour morphs of the algal-dwelling shrimp Hippolyte obliquimanus. Marine Biology, v. 164, n. 11, . (12/17003-0)
DUARTE, RAFAEL C.; FLORES, AUGUSTO A. V.. Morph-specific habitat and sex distribution in the caridean shrimp Hippolyte obliquimanus. Journal of the Marine Biological Association of the United Kingdom, v. 97, n. 2, p. 235-242, . (12/17003-0, 09/06675-4)
DUARTE, RAFAEL C.; STEVENS, MARTIN; FLORES, AUGUSTO A. V.. Shape, colour plasticity, and habitat use indicate morph-specific camouflage strategies in a marine shrimp. BMC Evolutionary Biology, v. 16, . (15/22258-5, 12/17003-0, 09/06675-4)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
DUARTE, Rafael Campos. Colour polymorphism and its function in Hippolyte obliquimanus: camouflage and resource use diversification. 2017. Doctoral Thesis - Universidade de São Paulo (USP). Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (PCARP/BC) Ribeirão Preto.

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