La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Herpetofauna diversity and microenvironment correlates across a pasture-edge-interior ecotone in tropical rainforest fragments in the Los Tuxtlas Biosphere Reserve of Veracruz, Mexico
Auteurs :	J. Nicolas Urbina-Cardona, Auteur ; Mario Olivares-Perez, Auteur ; Victor Hugo Reynoso, Auteur
Type de document :	Article
Dans :	Biological Conservation (132(1) SEP 2006)
Article en page(s) :	61-75
Langues:	Anglais
Résumé :	We evaluated the relationship between amphibian and reptile diversity and microhabitat dynamics along pasture-edge-interior ecotones in a tropical rainforest in Veracruz, Mexico. To evaluate the main correlation patterns among microhabitat variables and species composition and richness, 14 ecotones were each divided into three habitats (pasture, forest edge and forest interior) with three transects per habitat, and sampled four times between June 2003 and May 2004 using equal day and night efforts. We measured 12 environmental variables describing the microclimate, vegetation structure, topography and distance to forest edge and streams. After sampling 126 transects (672 man-hours effort) we recorded 1256 amphibians belonging to 21 species (pasture: 12, edge: 14, and interior:

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