Abstract
The south-western Beni forest–grassland mosaic in central western Bolivia, a natural fragmented forest area, is home to two Bolivian primate endemics: the Beni titi monkey (Callicebus modestus) and the Olalla brothers titi monkey (Callicebus olallae). Despite extremely low sample sizes (n = 1 and n = 2, respectively), these species have been consistently recognized in taxonomic reviews of the genus since their discovery and description in the late 1930s; however, no new field data was available until 2002. In this chapter, we present a summary of our efforts to: describe the distributional limits of both species, determine their phenotypical characteristics in the field, conduct preliminary analyses of genetic differences between the two species, estimate population densities, describe the composition and structure of the naturally fragmented forest habitats where they occur, and document the behavioral ecology of both species. We also report the threats facing these two range restricted endemics through informal questionnaires with local actors and deforestation studies. Additionally, we detail efforts to conserve these species to date, such as local outreach campaigns, coordination with national government offices, and assistance to local municipalities for inclusion of these species requirements in municipal development plans and their prominence in the justification for the creation of a Municipal Protected Area in the Santa Rosa municipality. Finally, we identify priority conservation actions for the future.
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References
Arnez A (2012) Dieta y comportamiento alimenticio de dos grupos de monos titi (Callicebus modestus) endémicos del Beni, Bolivia. Disertacion, Universidad Mayor San Simon, Cochabamba, Bolivia
Barreta J (2007) Caracterización genética de dos especies de monos tití Callicebus olallae y Callicebus modestus del Departamento del Beni. Informe Técnico. Wildlife Conservation Society & Instituto de Biología Molecular y Biotecnología, La Paz, Bolivia
Felton A, Felton AM, Wallace RB, Gómez H (2006) Identification, distribution and behavioral observations of the titi monkeys Callicebus modestus Lönnberg, 1939 and Callicebus olallae Lönnberg, 1939. Primate Conserv 20:41–46
Fleck LC, Painter L, Reid J, Amend M (2006) A road through Madidi: an environmental-economic analysis. Conservation strategy fund. Serie Técnica 6:1–95
Fleck LC, Painter L, Amend M (2007) Carreteras y áreas protegidas: un análisiseconómico integrado deproyectos en el norte de la Amazonía Boliviana. Conservation strategy fund. Serie Técnica 12:1–75
Hershkovitz P (1990) Titis, new world monkeys of the genus Callicebus (Cebidae, Platyrrhini): a preliminary taxonomic review. Fieldiana Zool New Ser 55:1–109
Kobayashi S (1995) A phylogenetic study of titi monkeys, genus Callicebus, based on cranial measurements: I. Phyletic groups of Callicebus. Primates 36:101–120
Lönnberg E (1939) Notes on some members of the genus Callicebus. Arkiv för Zoologi 31:1–18
López LA (2011) Dieta y comportamiento alimenticio de dos grupos de Callicebus olallae en la estancia ganadera “La Asunta”; Municipio de Santa Rosa del Yacuma, Beni-Bolivia. Disertación, Universidad Mayor de San Andrés, La Paz, Bolivia
López-Strauss H (2008) Estimación de densidad y composición de grupos de dos especies de primates, Callicebus olallae y Callicebus modestus, endémicos del sudoeste del Departamento del Beni, Bolivia. Disertación, Universidad Mayor de San Andrés, La Paz, Bolivia
López-Strauss H, Wallace RB (Submitted) Density estimates of two Bolivian primate endemics, Callicebus olallae and C. modestus. Mastozoologia Neotropical
Martinez J, Wallace RB (2007) Further notes on the distribution of endemic Bolivian titi monkeys, Callicebus modestus and Callicebus olallae. Neotrop Primates 14:47–54
Mercado N, Wallace RB (2010) Distribución de primates en Bolivia y áreas prioritarias para su conservación. Trop Conserv Sci 3:200–217
Martinez J, Wallace RB (2011) First reports of terrestrial travel of Callicebus olallae. Neotrop Primates 18:49–52
Martinez J, Wallace RB (2013) New information about the distribution of Callicebus in Bolivia. Ecología en Bolivia 48:57–62
Van Roosmalen MGM, van Roosmalen T, Mittermeier RA (2002) A taxonomic review of the titi monkeys, genus Callicebus Thomas, 1903, with the description of two new species, Callicebus bernhardi and Callicebus stephennashi from Brazilian Amazonia. Neotrop Primates 10:1–52
Veiga LM, Wallace RB, Martinez J (2008a) Callicebus modestus. In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.4. www.iucnredlist.org. Downloaded on 29 Dec 2010
Veiga LM, Wallace RB, Martinez J (2008b) Callicebus olallae. In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.4. www.iucnredlist.org. Downloaded on 29 Dec 2010
Acknowledgments
We would like to thank the Wildlife Conservation Society, Gordon and Betty Moore Foundation, Primate Conservation Inc., Margot Marsh Biodiversity Foundation, the BP Conservation Leadership Program, and the Conservation International Primate Action Fund for their continued financial support. We would like to thank the National Directorate for the Protection of Biodiversity for help in acquiring necessary research permits, as well as the collaboration of the Municipalities of Reyes, San Borja, and Santa Rosa del Yacuma, and especially the Nogales cattle ranches for access to the study sites.
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Wallace, R.B., Martinez, J., Lopez-Strauss, H., Barreta, J., Reinaga, A., Lopez, L. (2013). Conservation Challenges Facing Two Threatened Endemic Titi Monkeys in a Naturally Fragmented Bolivian Forest. In: Marsh, L., Chapman, C. (eds) Primates in Fragments. Developments in Primatology: Progress and Prospects. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-8839-2_33
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DOI: https://doi.org/10.1007/978-1-4614-8839-2_33
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