We present a review on the conservation status and population trends of the 372 amphibian species currently recognized for Mexico. We based our analyses on the information gathered by the International Union for the ...

Demographic data are essential to determine the probability that species will persist over time. Unfortunately, demographic studies are rarely part of the initial evaluation of potentially threatened or endangered species. ...

There appears to be variation in life-history strategies even between populations of the same species. For ectothermic organisms such as lizards, it has been predicted that demographic and life-history traits should differ ...

Analizamos el crecimiento corporal de una nueva especie de lagartija endémica del género Xenosaurus Peters, ubicada en la Reserva de la Biósfera, Sierra Gorda - Querétaro, México. Se estimaron las tasas de crecimiento ...

We report on growth and demography of Sceloporus mucronatus mucronatus, a lizard subspecies endemic to central Mexico. We characterize the life history of this subspecies, provide quantitative information relevant to ...

In viviparous organisms, pregnant females typically experience an increase in body mass and body volume. In this study, the prediction that variation in reproductive traits among populations of viviparous organisms should ...

Life cycles of living organisms are composed of distinct sub-cycles that represent alternative life-history paths with differential impact on fitness. We identified three reproductive life-history paths (referred here as ...

Asynchronous reproduction is a common phenomenon in high-elevation populations of lizards from Central México. Sperm storage in the reproductive tract of females is the mechanism for making oocyte fertilization possible. ...