Abstract
The current range of the red ruffed lemur (Varecia rubra) population is primarily restricted to forests of the Masoala Peninsula on the northeastern coast of Madagascar. Whereas much of the peninsula is protected as Masoala National Park, parts of the forest are at risk from anthropogenic pressures and habitat fragmentation. We sampled 32 individual red ruffed lemur from two sites: Ambatoledama (DAMA), a narrow forest corridor across an area of degraded habitat connecting larger blocks of forest in the northwestern reaches of the park, and Masiaposa (MAS) forest, a largely pristine forest on the lower western side of the peninsula. Population genetic parameters were estimated for these two populations employing 15 microsatellite loci derived from the V. variegata genome. We found that by exceeding the expected heterozygosity at mutation-drift equilibrium, the DAMA population has undergone a recent population bottleneck. Population structure analysis detected individuals harboring genotypic admixture of the DAMA genetic cluster in the MAS population, suggesting a possibility of unilateral gene flow or movement between these populations.
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Acknowledgments
This project would not have been possible without the support of the staff of the Institute for Conservation of Tropical Environments, Madagascar (ICTE-MICET), as well as, the National Parks Madagascar (NPM), US Fish and Wildlife Service, and the Ministère des Eaux et Forêts of Madagascar. We thank Bill and Berniece Grewcock for their support of student interns, the Ahmanson Foundation for their generous support of DNA sequencers and other laboratory components, and the Theodore F. and Claire M. Hubbard Family Foundation for supporting conservation projects undertaken by the HDZ Madagascar Biodiversity and Biogeography Project. We thank the late Prof. Randria Ravololonarivo Gisele for her support of graduate students and the Department of Anthropology and Paleontology at the University of Antananarivo. Finally, we thank the three reviewers whose helpful comments greatly improved the manuscript. No animals were injured in this study, and the research protocols were performed within the guidelines of the Primate Society of Japan, the HDZ-IACUC #97-001, and in compliance with the care and expectations of local, national, and international laws and standards.
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Razakamaharavo, V.R., McGuire, S.M., Vasey, N. et al. Genetic architecture of two red ruffed lemur (Varecia rubra) populations of Masoala National Park. Primates 51, 53–61 (2010). https://doi.org/10.1007/s10329-009-0171-0
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DOI: https://doi.org/10.1007/s10329-009-0171-0