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2 resultados encontrados para: AUTOR: Rivera Castañeda, Andrómeda Mariana
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1.
Capítulo de libro
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Forest fragmentation and its effects on the feeding ecology of black howlers (Alouatta pigra) from the Calakmul area in Mexico
Rivera Castañeda, Andrómeda Mariana (autora) ; Calmé, Sophie (autora) ;
Disponible en línea
Contenido en: New perspectives in the study of mesoamerican primates: distribution, ecology, behavior, and conservation / edited by Alejandro Estrada, Paul A. Garber, Mary McDonald Pavelka, LeAndra Luecke New York, New York, United States : Springer Science+Business Media, c2006 páginas 189-213 ISBN:0-387-25854-X :: 978-0-387-25854-6
Bibliotecas: San Cristóbal
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SIBE San Cristóbal
37696-20 (Disponible)
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Resumen en: Inglés |
Resumen en inglés

Information on food selection and feeding habits is critical for species conservation, particularly in the context of forest landscapes heavily transformed by human activities. In this study, we examined the degree to which A. pigra feeding habits differed between two sites in the conserved forest of the Calakmul Biosphere Reserve (CBR) and two forest fragments outside the reserve, and how monkeys select the trees on which they feed. Our results suggest that howlers tended to exploit a smaller set of fruit and leaf species in the conserved sites, whereas their diet was more diverse in the fragments. This can be explained probably by the role, at CBR, of Ficus sp. in howlers’ diet, as it was highly selected and represented half of all feeding events.

Chesson’s electivity index showed that howlers in fragments selected 12 of the 16 species used for feeding; while in CBR, they selected 9 of the 10 species used for feeding. At both types of forests, feeding trees were taller and were greater in diameter than non-feeding trees. Trees exploited by howlers for feeding have commercial dimensions and most of these species are commercially logged. As a result, in fragments and logged forests, howlers have to face the lack of continuity in the canopy and the loss of many vital trees for feeding. We expect howler monkeys to survive in fragmented sites if tree species important in their diet are conserved.


2.
Tesis - Maestría
Dieta del mono aullador negro (Alouatta pigra) en sitios con diferente estado de conservación en la región de Calakmul, Campeche, México / Andrómeda Mariana Rivera Castañeda
Rivera Castañeda, Andrómeda Mariana ; Calmé, Sophie (tutor) ; Ramos Fernández, Gabriel (asesor) ; Estrada Medina, Jesús Alejandro (asesor) ;
Chetumal, Quintana Roo, México : El Colegio de la Frontera Sur , 2004
Clasificación: TE/599.82097264 / R5
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SIBE Campeche
ECO040002994 (Disponible)
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SIBE Chetumal
ECO030006707 (Disponible)
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SIBE San Cristóbal
ECO010010082 (Disponible)
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SIBE Tapachula
ECO020011166 (Disponible)
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SIBE Villahermosa
ECO050003182 (Disponible)
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Índice

Capítulo Uno
Introducción
Generalidades y estudios sobre Alouatta
Alouatta pigra en México
Objetivos
Área de estudio
Literatura citada
Capítulo Dos - Forest fragmentation and its effects on the feeding ecology of black howler (Alouatta pigra) from the Calakmul area in Mexico
Introduction
Materials and Methods
Study Area
Study sites and focal troops
Feeding behavior
Vegetation sampling
Statistical analyses
Results
Comparison of diet composition
Comparison of tree parts consumed
Dietary selectivity in remnants and CBR
Characteristics of consumed and non-consumed trees
Tree species composition and abundance in focal and random plots
Discussion
Feeding habits in CBR and the forest remnants
Food selection in CBR and the forest remnants
Selection of feeding sites at tree and stand levels
Summary
Acknowledgements
References
Anexo
. Frecuencia, abundancia relativa, DAP y altura promedio, cobertura y dominancia de 85 especies de árboles.