Phenotypic plasticity may allow ectotherms with complex life histories such as amphibians to cope with climate-driven changes in their environment. Plasticity in thermal tolerance (i.e., shifts of thermal limits via acclimation to higher temperatures) has been proposed as a mechanism to cope with warming and extreme thermal events. However, thermal tolerance and, hence, acclimation capacity, is known to vary with life stage. Leer más.
Due to the speed of climate changes, rapid buffering mechanisms such as phenotypic plasticity – which may depend on breeding phenology – could be key to avoid extinction. The links between phenology and plasticity, however, remain understudied. Here we explored the matching between phenology and the thermal sensitivity of standard (SMR) and routine metabolic rates (RMR), metabolic scope (i.e. the difference between RMR and SMR), survival and growth-development trajectories in larvae of a prolonged breeder amphibian Alytes almogavarii acclimated to 10 and 20°C, belonging to three cohorts: autumn pre-overwintering, autumn overwintering and spring tadpoles. Leer más.
It is most similar with Scinax rupestris, from which it differs by having larger adult males; less developed nuptial pad; and hidden surfaces of thigh and light or dark brown, with lighter, large and irregular blotches (yellow in life). Leer más.
El Ayuntamiento de Viladecans (Baix Llobregat) junto con la Diputación de Barcelona han unido fuerzas para mejorar las dos balsas creadas hace una década por el Consistorio en el parque forestal Mas Ratés y en la Font de Can Preses. Leer más.
El Parque Moret cuenta desde ya con una nueva charca (la tercera) para anfibios de 6 metros de largo, 3 de ancho y 0,5 de altura, que se convertirá en un refugio de fauna y flora destinado a la conservación de distintas especies. Leer más.
