How Many Red Ruffed Lemurs Are Left?
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I surveyed the Anaovandrano River Watershed to assess whether large tracts of primary lowland rain forest still occur there and to what extent red ruffed lemurs (Varecia variegata rubra) populate the interior of the Masoala Peninsula. These data permit an informed estimate of the remaining population size for this subspecies. I located large tracts of primary lowland rain forest in the interior, but fragmentation has begun. Red ruffed lemurs appear to be less dense in the interior than they are in remaining lowland coastal rain forest. I estimate the remaining population size to be between 29,682 and 51,115 individuals. Breeding population size is substantially smaller, probably <14,841 individuals.
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- Andrianisa, J. A. (1989). Observation Phénologiques dans la Réserve Spéciale de Nosy Mangabe, Maroantsetra, Unpublished Mémories de fin d'études, Université d'Antananari Madagascar.Google Scholar
- Donque, G. (1972). The climatology of Madagascar. In Battistini, R., and Richard-Vindard, G. (eds.), Biogeography and Ecology in Madagascar, Dr. W. Junk, The Hague, pp. 87–144.Google Scholar
- Koechlin, J. (1972). Flora and vegetation of Madagascar. In Battistini, R., and Richard-Vindard, G. (eds.), Biogeography and Ecology in Madagascar, Dr. W. Junk, The Hague, pp. 145–190.Google Scholar
- Lacy, R. C. (1994). What is population (and habitat) viability analysis? Primate Conserv. 14–15:27–33.Google Scholar
- Lande, R., and Barrowclough, G. F. (1987). Effective population size, genetic variation and their use in population management. In Soule, M. E. (ed.), Viable Populations for Conservation, Cambridge University Press, New York, pp. 87–123.Google Scholar
- Morland, H. S. (1991). Social Organization and Ecology of Black and White Ruffed Lemurs (Varecia variegata variegata) in Lowland Rain Forest, Nosy Mangabe, Madagascar, Unpublished Ph.D. dissertation, Yale University, New Haven, CT.Google Scholar
- PCDI Masoala (1995). Proposition des Limites du Parc National Masoala, Unpublished document, Masoala Integrated Conservation and Development Project.Google Scholar
- Peddie, N. W. (1993). The magnetic field of the Earth, 1990 declination chart, USGS Geophysical Investigations Map GP-1004-D.Google Scholar
- Pollock, J. I. (1975). The Social Ecology and Behavior of Indri Indri, Unpublished Ph.D. thesis, University of London, London.Google Scholar
- Rigamonti, M. M. (1993). Home range and diet in red ruffed lemurs (Varecia variegata rubra) on the Masoala Peninsula, Madagascar. In Kappeler, P. M., and Ganzhorn, J. U. (eds.), Lemur Social Systems and Their Ecological Basis, Plenum, New York, pp. 25–39.Google Scholar
- White, F. J., Ovedorff, D. J., Balko, E. A., and Wright, P. C. (1995). Distribution of ruffed lemurs (Varecia variegata) in Ranomafana National Park, Madagascar. Folia Primatol, 64:124–131.Google Scholar
- Vasey, N. (1997). Community ecology and behavior of Varecia variegata rubra and Lemur fulvus albifrons, on the Masoala Peninsula, Madagascar, Ph.D. thesis, Washington University, St. Louis, MO(in preparation).Google Scholar