Milene Martins

Conservation Genetics of Populations of the Black-Faced Lion Tamarins (Leontopithecus caissara) from Superagüi Island and Mainland, Paraná, Brazil

Adult male black-faced lion tamarin. Photo by Marcos Amend.

Ariri, Cananéia, São Paulo BrazilCentral and Latin America, Mammals9 May 2008

The target of this study is to evaluate the genetic structure and dispersal patterns of two populations of the black-faced lion tamarin (Leontopithecus caissara) in southeastern Brazil. The construction of a navigation channel within the geographic range of this primate species apparently blocked genetic interchange between populations. Both mainland and Superagüi Island population size are very reduced, what may enhance the pervasive effects of the genetic drift and inbreeding. The management plan for lion tamarins recommends translocation of groups as a tool for reestablishing gene flow.

Such conservation effort will certainly be more successful if accompanied by genetic investigations. Genetic analysis of 10 and 34 individuals (mainland and island, respectively) were performed through seven microsatellite markers and revealed significant difference between island and mainland populations. However, the unbalance nature of the sampling may have effects on this preliminary result and may compromise the reliability of the evaluation of dispersal patterns. In order to enlarge sample size at mainland, we intend to capture and collect blood samples from 12 animals. This project will add a genetic dimension to the ongoing efforts to understand the ecology, demography, and natural history of the black-faced lion tamarins. Data generated will provide improvements to the management plan.

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Project Updates

Read about the latest progress of this project in the articles below.

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Genetics and Molecular Biology, 34, 1, 173-175 (2011)56.9 KB
Folia Primatol 2011;82197–2111.45 MB
Final Report

Read more about the activities undertaken and findings of this project in the final report below.

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Final Report694 KB

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