Inventario biológico preliminar de Cerro Piedra Larga, Oaxaca, México: aves, mamíferos,reptiles anfibios y plantas

Abstract

CERRO PIEDRA LARGA IS AN ISOLATED MOUNTAIN MASSIF IN EASTERN OAXACA, LYING JUST WEST OF THE ISTHMUS OF TEHUANTEPEC. NO PREVIOUS BIOLOGICAL INVENTORIES HAD ASSESSED THIS RANGE, MAKING EVEN A PRELIMINARY ASSESSMENT OF INTEREST. DURING SEVERAL WEEKS OF WORK IN THE HIGHER PORTIONS OF THE MOUNTAIN RANGE, WE ASSEMBLED SUCH PRELIMINARY INVENTORIES FOR BIRDS, MAMMALS, REPTILES, AMPHIBIANS, AND PLANTS. GEOGRAPHICALLY, THE AFFINITIES OF THE HIGHLAND BIOTA OF CERRO PIEDRA LARGA APPEAR TO BE MIXED BETWEEN THE SIERRA MADRE ORIENTAL AND THE SIERRA MADRE DEL SUR, SUGGESTING THAT THE BIOTA LIKELY ORIGINATED BY COLONIZATION, RATHER THAN VIA HISTORICAL CONNECTIONS.