Multiple paternity is widespread in nature and despite costs, it has many associated benefits like increased genetic diversity and fertilization success. It has been described in many viviparous systems, suggesting the existence of some fitness advantages counteracting the inherent costs of viviparity, such as fecundity reduction and high parental investment. Leer más.
Accurate estimations of population size and space-use are critical issues, for assessing population trends and extinction risk. In this study, we applied spatially explicit capture-recapture (SECR) modelling customized for linear habitats to a three-year Capture-Mark-Recapture (CMR) monitoring of three populations of stream-dwelling Pyrenean brook newt (Calotriton asper), an endemic species of the Pyrenean mountain range. Leer más.
Assessment of parasites and their pathogenicity is essential for studying the ecology of populations and understanding their dynamics. In this study, we investigate the prevalence and intensity of infection of haemogregarines (phylum Apicomplexa) in two sympatric lizard species, Podarcis vaucheri and Scelarcis perspicillata, across three localities in Morocco, and their effect on host immune response. Leer más.
Los casos de introducción de reptiles en las islas canarias va aumentando con el tiempo. En la última publicación del Boletín de la Asociación Herpetológica Española, los autores Elba Montes, Ramón Gallo y Miguel Ángel Cabrera presentan el trabajo “Presence of the horseshoe whip snake (Hemorrhois hippocrepis) on Gran Canaria, Spain.” Leer más. Ir al Boletín
Two types of pathogens cause highly contagious upper respiratory tract diseases (URTD) in Chelonians: testudinid herpesviruses (TeHV) and a mycoplasma (Mycoplasma agassizii). In captivity, these infections are frequent and can provoke outbreaks. Pet trade generates an international ow of tortoises, often without sanitary checking; individuals intentionally or accidentally released in the wild may spread pathogens.. Leer más.
