This study shows the analyses of the mitochondrial regions: control region [D-Loop], the cytochrome b gene and the ARNr 16S gene in the rodents Cynomys mexicanus and Spermophilus spilosoma, with the aim to determine their relevance for studies of genetic variation and phylogenetic inferences. The methodological strategy included, sequencing analysis,...
In the present study is determined and analyzed the community structure of bats presents in the cave "El Salitre", located to 3 km in south of Los Ortices, Colima state. The vegetation consisting in relicts of tropical dry forest and the climate is warmsubhumid, with rain season from June to...
The fruits of the Stenocereus pruinosus and Stenocereus stellatus genders offer an agricultural option to the people of this region. They are popularly know by the name of “sweet xoconostle” and “may pitaya” and outside their production region they are considered as exotic. This in Puebla and Oaxaca, its high...
Along 10 months (October 2013-July 2014) the stomach content of 59 Peromyscus difficilis specimens was examined. Samples were collected in an Oyamel and broadleaved trees forest called “Paraje San Borja” which is part of Mexico City’s National Park "Desierto de los Leones" (PNDL). The sampling allowed evaluating three pluvial seasons...
Se analiza la distribución ecológica de dos ratones silvestres del Género Peromyscus (micromamíferos) en un cuadrante de 55x45 m dentro de un bosque templado de coníferas y latifoliadas en el Parque Nacional Desierto de los Leones (PNDL). El cuadrante quedó integrado por 120 estaciones de muestreo con un área de...
Los estudios de la individualidad en especies animales no humanas se han ido desarrollando cada vez más desde la segunda mitad del siglo XX, en el caso de los canidos la mayoría de las investigaciones se han realizado en los perros (Canis familiaris), pero en otras especies del género como...
Riparian ecosystems are the interface between terrestrial and aquatic ecosystems. Despite its relevance, the riparian vegetation of these ecological systems is threatened, since it is being displaced by agricultural, industrial and human settlement activities. The objective of this work was to compare the avifauna between sites that belong to different...
The Pitaya is a traditional resource of great economic importance in the Mixteca Baja Oaxaqueña. The pitayas is inside the native fruits of our country that have generated an increase in the economic entrance in the farmer in some areas and they have increased the consumer's acceptance. However there are...
In early 1900 the populations of Mexican Wolf began the decline of their populations. Their drastic decline was due to indiscriminate hunting to which were subjected by farmers. By mid-l900 Arizona, New Mexico and Texas will be free of wolves. In the early 1980s created a joint interest by governments...
In order to face the biodiversity crisis experienced by the world it is required to create new alternatives for conservation and sustainable use of resources. Avoid species extinction is one of the most important challenge for the humanity during the new century. To preserve those species which are vanishing or...