The Aesculapian snake (Zemensis longissimus) is an introduced species in the UK, with two populations established in Wales and one along the Regents Canal in central London. The snake is non-venomous and can grow up to 2m in length but is rarely seen and reputedly lives on rats and mice in their urban environment. Leer más.
We found that independent transitions from larviparity to pueriparity are consistently associated with ecological differentiation driven primarily by steep topography and karstic geology. Leer más.
Here, we compared macroscale patterns of morphological diversification between two geographically separated evolutionary radiations of widespread frogs to assess how morphological diversity has arisen and tested whether distinct ecogeographical rules operate at broad spatial scales. Leer más.
Drought-induced shifts in hydroperiod can drastically reduce reproductive success and accelerate larval development with fitness consequences while, on land, desiccation risk and habitat degradation could limit access to refugia and fragment populations by reducing structural connectivity. These environmental constraints are compounded by the interactions between drought and emerging infectious diseases. Leer más.
Cool-and-wet-adapted amphibians were more infected with B. dendrobatidis during warm-and-dry spells, while warm-and-dry-adapted hosts showed higher B. dendrobatidis infection during cool-and-wet spells. For Ranavirus, mismatches occurred under opposite climatic conditions to those of B. dendrobatidis. Leer más.
