Relationships between Forest Fragments and Howler Monkeys (Alouatta palliata mexicana) in Southern Veracruz, Mexico

  • Erika M. Rodriguez-Toledo
  • Salvador Mandujano
  • Francisco García-Orduña

Abstract

Los Tuxtlas, a region located in the state of Veracruz, Mexico, is the most northern geographic distribution of tropical rain forest in America (Dirzo and Miranda, 1991). In this region there are two species of primates, the howler monkey (Alouatta palliata mexicana) and spider monkey (Ateles geoffroyi vellorosus). Populations of both species have declined 90% (Estrada and Coates-Estrada, 1995). For this reason, these species are considered to be vulnerable according to NOM-059-ECOL-1994 and endangered according to Appendix I of CITES (Rylands et al., 1995). In Mexico, hunting or capturing these primates is illegal, however, the practice continues in the region (Rodriguez-Luna et al., 1987). Nevertheless, the main reason of reduction in distribution and abundance is the dramatic deforestation of tropical rain forest (Silva-Lopez et al., 1988; Estrada and Coates-Estrada, 1995). Loss in 1986 alone was estimated at 84% of the original forest (Dirzo and García, 1992), but the percentage is even higher today. As a consequence, there is relatively intact habitat found only in the higher parts of the region’s volcanoes, while in the lower areas many Alouatta and Ateles groups have been forced to live in forest fragments (García-Orduña, 1995). This is, unfortunately, the most common scenario for the monkeys, thus creating urgency for the development of management plans designed to conserve the primates not only in relatively intact reserves, but also in the disturbed landscape.

Keywords

Fragment Size Canopy Height Tropical Rain Forest Shape Index Spider Monkey 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 2003

Authors and Affiliations

  • Erika M. Rodriguez-Toledo
    • 1
  • Salvador Mandujano
    • 2
  • Francisco García-Orduña
    • 3
  1. 1.Posgrado en Manejo de Fauna SilvestreInstituto de Ecología A. C.XalapaMéxico
  2. 2.Departamento de Ecología y Comportamiento AnimalInstituto de Ecología A. C.XalapaMéxico
  3. 3.Instituto de NeuroetologíaUniversidad VeracruzanaXalapaMéxico

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