Site-fidelity of Guiana dolphins, Sotalia guianensis, in a protected marine area in Northeastern Brazil: Site-fidelity of Guiana dolphins in a protected marine area in Northeastern Brazil

Gessica Rafaelly Dantas da Silva; Vitor de Oliveira Lunardi; Josivânia Emanuelly Azevedo dos Santos; Diana Gonçalves Lunardi

doi:10.26848/rbgf.v19.01.p463-476

Autores/as

Gessica Rafaelly Dantas da Silva Universidade Federal do Rio Grande do Norte https://orcid.org/0000-0002-6554-2500
Vitor de Oliveira Lunardi Universidade Federal Rural do Semi-Árido http://orcid.org/0000-0003-0977-382X
Josivânia Emanuelly Azevedo dos Santos Universidade Federal Rural do Semi-Árido https://orcid.org/0000-0002-8777-1056
Diana Gonçalves Lunardi Universidade Federal Rural do Semi-Árido https://orcid.org/0000-0001-5535-2917

DOI:

https://doi.org/10.26848/rbgf.v19.01.p463-476

Palabras clave:

biogeografia, conservação, mamíferos marinhos, unidade de conservação, fotoidentificação, uso do espaço

Resumen

Patterns of site-fidelity have important implications for the conservation of small cetaceans, as populations with high site-fidelity are more vulnerable to local anthropic threats. We examined the site-fidelity of Guiana dolphins, Sotalia guianensis, in the Tibau do Sul Coastal Wildlife Reserve (REFAUTS), northeastern Brazil, to subsidize conservation strategies for this species, threatened with extinction on the Brazilian coast. The photo-identification of Guiana dolphins was carried out from 2013 to 2019, during 41 days of sampling. Of a total of 45 photo-identified Guiana dolphins, 10 individuals had an intermediate rate of site-fidelity, ranging from 0.4 to 0.7, and two individuals had a high rate of site-fidelity, greater than 0.7. Twelve Guiana dolphins were registered in three or more years of sampling, while another 33 Guiana dolphins were registered in only one or two years of sampling. Although the majority of individuals are occasional visitors, the REFAUTS harbors regular visitors, such as visitors very faithful to the site of Guiana dolphins. Understanding the patterns of site-fidelity of Guiana dolphins in adjacent areas of this reserve can contribute to the identification of new critical habitats for conservation of this population in a regional context and a current scenario of intense tourist exploration.

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Biografía del autor/a

Gessica Rafaelly Dantas da Silva, Universidade Federal do Rio Grande do Norte

Bacharel em Ecologia e Mestre em Ambiente, Tecnologia e Sociedade pela Universidade Federal Rural do Semi-Árido (UFERSA). Doutoranda no programa de Pós-Graguação em Psicobiologia pela Universidade Federal do Rio Grande do Norte (UFRN). Minha trajetória na pesquisa revela afinidade com a conservação da biodiversidade em áreas naturais protegidas, incluindo, os ecossistemas terrestres, marinho e costeiro. Tabém possuo experiência em atividades de extensão de cunho educativo, aliando sustentabilidade e conservação da biodiversidade. Atuamente, desenvolvo pesquisas voltadas ao estudo do comportamento animal.

Texto: http://lattes.cnpq.br/0396286456755679

Vitor de Oliveira Lunardi, Universidade Federal Rural do Semi-Árido

Vide lattes: http://lattes.cnpq.br/2502162313135026

Professor da Universidade Federal Rural do Semiárido desde 2010, onde ministra as disciplinas: 'biologia da conservação (30h/semestre)', 'ecologia evolutiva (60h/semestre)' e 'ecologia molecular (60h/semestre)' para os cursos de graduação, e 'conservação da biodiversidade' (60h/ano) para os cursos de pós-graduação.
Desenvolve pesquisas científicas e projetos de extensão envolvendo os temas 'ecologia e conservação da biodiversidade' e 'educação para a sustentabilidade'.
Responsável pelo Laboratório de Ecologia Evolutiva e Molecular (https://ccbs.ufersa.edu.br/laboratorios/ecomol/) e é membro da Comissão Permanente do Plano de Gestão de Logística de Sustentável da Ufersa (https://ambiental.ufersa.edu.br/).

Josivânia Emanuelly Azevedo dos Santos, Universidade Federal Rural do Semi-Árido

Bacharel em Ecologia (2011-2016) e Mestre em Ambiente, Tecnologia e Sociedade (2017-2019) pela Universidade Federal Rural do Semi-Árido (UFERSA) e Licenciada em Ciências Biológicas pela Universidade Paulista (UNIP). Atualmente é doutoranda do Programa em Pós-Graduação em Desenvolvimento e Meio Ambiente (PRODEMA) da UFERSA. É integrante do Laboratório de Ecologia Evolutiva e Molecular (ECOMOL), onde desenvolve pesquisas sobre conservação da biodiversidade.

http://lattes.cnpq.br/0238894157731037

Diana Gonçalves Lunardi, Universidade Federal Rural do Semi-Árido

Bacharel e Licenciada em Ciências Biológicas pela Universidade de Brasília, Mestre em Ecologia, pela Universidade de Brasília e Doutora em Psicobiologia pela Universidade Federal do Rio Grande do Norte. Docente da Ufersa desde 2011, coordena a Casa de Leitura e o núcleo de pesquisa e extensão @ufersa.ambiental. Desenvolve projetos de pesquisa e extensão com foco no planejamento ambiental, conservação da biodiversidade e educação para a sustentabilidade. Orienta discentes de doutorado no Prodema/UFERSA.

http://lattes.cnpq.br/3614629176970801

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