We collected three specimens and two photograph records of the hairy-legged vampire bat (Diphylla ecaudata) in the municipalities of Victoria and Xichú. These are the first records of this species in Guanajuato, Mexico. Diphylla ecaudata feeds on avian blood. D. ecaudata is a bat with a long, silky and brown dorsal fur, and white color in the base. It usually inhabits tropical...
Feral cats abound at Isla de Guadalupe; they forage on birds, mice, and placental tissue as well as carcasses of northern elephant seals (Mirounga angustirostris), Guadalupe fur seal (Arctocephalus townsendi), California sea lions (Zalophus californianus) and stranded cetaceans such as Cuvier's beaked whale (Ziphius cavirostris). We have found that feral cats are also drinking...
Our research was conducted Colima Volcanic Complex (CVC) and was to make a first list of cave-dwelling bats on the basis of bibliographic records and sampling in caves and forests. We found 25 species of which six are new records for the area (Glossophaga morenoi, Hylonycteris underwoodi, Chiroderma salvini, Artibeus hirsutus A. intermedius, and Myotis velifer) also were recorded...
The mammal of the state of Hidalgo, Mexico, is little known, with the objective of contributing to the knowledge of the richness of the mammals of this state, we compiled information from the records of mammal species distributed in the state through an intensive search in international and national scientific collections, and literature. The mastofaunistic composition of the...
We provide data on small rodent species abundances and community composition over a one year period at four locations comprising two contrasting habitats, agricultural areas (corn fields) and ecological reserves, in the Municipality of San Cristóbal de Las Casas, Chiapas. 469 captures of nine species of murid rodents were recorded in total, the most abundant of which included...
Despite the fact that Puebla is in central Mexico and close to Mexico City, little is known about the felid species that inhabit the state. As part of our studies about the jaguar in Puebla, we are determining the distribution of ocelot (Leopardus pardalis) along the state. We conducted surveys among communities and placed camera traps in the field. We got ten reports of the...
Pups of the Guadalupe fur seal were captured, marked with hair bleach, measured and weighed between two and four times during their first year of life, during three consecutive years (1991, 1992 and 1993) conforming a sample of 132 pups of both sexes. The following parameters were measured: standard length, body mass, and axilar girth, these were measured in the first hours to...
The home ranges of 24 squirrels (Xerospermophilus perotensis) were analyzed and compared in three sampling sites with different degree of ground use in Valle de Perote, Veracruz, México. We found that the largest areas corresponded to the sites with natural vegetation by using the mark-recapture method and calculating the home ranges with minimum convex polygons, In contrast, the...
The white-tailed deer (Odocoileus virginianus) is the most widely distributed and studied ungulate in the American continent. This species is found throughout Mexico, except on the peninsula of Baja California and some areas of northern Chihuahua and Sonora. In this study we compared three geographic distribution models (Kellogg 1956; Hall 1981; Villarreal 1999) of white-tailed...
The energetic requirements of animals are dependent upon their basal metabolism, behavior and physiological conditions. Every activity of the animal represents an energetic cost. It is unknown how deer deal with the thermal conditions in arid and semiarid areas where the air temperature is higher than 40°C and the precipitation is lower than 400 mm annually. Therefore, it is...
We report the first record of tuza real (Agouti paca) from de Querétaro state, México. This record increases 34 km the known distribution of the tuza real. It was caught on deciduous tropical forest.
In the Natural Protected Corridor Chichinautzin (CBCH) there are issues such as hunting, deforestation, expansion of the agricultural frontier, urbanization and poor planning in natural resource management. The management of deer species has been shown to have great potential to promote conservation and sustainable use of the ecosystem of which they form part of. Before proposing...
We evaluated the impact of the extensive livestock practices and subsistence hunting on the relative abundance of mammals in the Zoque, forest, Mexico. We used camera-traps, structured questionnaires and visits to different locations. With a total sampling effort of 4,860 trap-days and 54 camera-traps in two periods of sampling (2009 and 2010), we registered 25 mammals and five...
Many studies analyze and compare species diversity, as a property of community structure, mainly in order to suggest priorities for conservation. Recently, robust measures of diversity have been proposed, and they may be helpful to achieve this objective in a better way. In this work we assess "true" species diversity, using species richness and the effective number of species in...
We give information on the seasonal abundance of herbivores bats and their plant food resources in Reserva de la Biosfera Barranca de Metztitlán, Hidalgo, México. Two types of vegetation were studied: crasicaule shrub of Isolatocereus dumortieri and tropical deciduous forest. We identified eight species of herbivorous bats that inhabit the Barranca de Metztitlán. Three species of...