José Raúl Vázquez

Universidad de Ciencias y Artes de Chiapas · Departamento de Biología

Protected areas are of paramount relevance to conserving wildlife and ecosystem contributions to people. Yet, their conservation success is increasingly threatened by human activities including habitat loss, climate change, pollution, and species overexploitation. Thus, understanding the underlying and proximate drivers of anthropogenic threats is...

A bstract Evidence regarding the ability of agroforests to conserve biological diversity has been mixed; they tend to maintain avian communities with species richness similar to that of undisturbed forest ecosystems but generally do not completely preserve community composition. Using a combination of occupancy modeling and non‐metric multidimensio...

Plant–animal mutualistic interactions through ecological network systems and the environmental conditions in which they occur, allow us to understand patterns of species composition and the structure and dynamics of communities. We evaluated whether flower morphologies with different pollination syndromes (ornithophilous and non-ornithophilous) are...

RESUMEN ∙ La diversidad taxonómica y funcional de las comunidades de aves está determinada por la distribución espacio‐temporal y la densidad de las poblaciones de las especies que las integran. La diversidad puede variar según el gradiente de elevación, en general al aumentar la elevación se reduce la riqueza de especies, como es el caso en alguna...

Mexico has 34 owl species, but little is known about their ecology particularly for tropical species. Of the 12 genera of owl species in the country, the genera Megascops and Glaucidium are the most diverse with eight species each. Strix has five species and Asio four. Four species are extensively distributed in the country, while others have distr...

Owls are difficult to see in dark tropical forests so their calls or vocalizations are used to detect and study them. However, vocalizations may vary during the night in association with environmental factors. We evaluated variations in owl calling at night and environmental variables associated with them for the Vermiculated Screech-Owl (Megascops...

Abstract The taxonomic diversity of trees, edible herbs, insects, fish, birds, amphibians, reptiles and mammals were studied; as well as the genetic diversity of mammals and trees in the nucleo and buffer zone of the REBISO. Moreover, the relationship of biodiversity with a capitals index (human, cultural, social, political, natural, physicalbuilt...

Changes in natural areas for human activities affect differentially density and habitat use of wildlife. In this study, we evaluated the density and habitat use of three owl (Strigidae) species, Vermiculated Screech-Owl (Megascops guatemalae). Ferruginous Pygmy-Owl (Glaucidium ridgwayi), and Mottled Owl (Strix squamulata). This study took place dur...

Environmental loss and degradation are negatively affecting important functional avian groups, such as diurnal raptors. We evaluated spatial variation of diversity in diurnal raptors in core and buffer zones in Selva El Ocote Biosphere Reserve using point counts and elevated points for observation. We recorded 16 diurnal raptor species, 10 in the c...

Environmental loss and degradation are negatively affecting important functional avian groups, such as diurnal raptors. We evaluated spatial variation of diversity in diurnal raptors in core and buffer zones in Selva El Ocote Biosphere Reserve using point counts and elevated points for observation. We recorded 16 diurnal raptor species, 10 in the c...