Video en el que se explica la construcción de un paso para anfibios en carretera y su improtancia. Ir al enlace.
About 81 percent of recorded snake strikes were accurate, yet the snake actually bit the kangaroo rat in just 47 percent of the strikes and latched on long enough in just 22 percent of strikes to actually kill and eat the kangaroo rat. The slowed-down videos demonstrate the importance of kangaroo rats’ physical features, including long tails and powerful legs, and mid-air maneuverability in escaping predation. Leer más.
Invasive D. pictus started breeding earlier than E. calamita, but differences were not significant. Similarly, there were not clear differences among areas with different invasion histories. However, we found for both species a mutual tendency to directly avoid larval syntopy at the end of the reproductive season. We also found interspecific differences in the features that both species use for pond choice, preferring the native species shallower and less vegetated ephemeral ponds. Globally however, co-occurrence was high, pointing at other processes as key to the coexistence between both species in these habitats. Leer más.
Batrachochytrium salamandrivorans (Bsal), el hongo «comesalamandras», podría exterminar varias especies en Estados Unidos, donde se teme que llegue en los próximos años. Los biólogos van a la carrera para averiguar cómo reaccionan las diferentes especies al Bsal en un intento por conocer cómo se podría propagar y dónde mejor dirigir los esfuerzos de la conservación. Leer más.
Known to science since 1857, a common species of frog found from north-eastern Honduras through to central Panama, turns out to have been keeping its ‘multiple identities’ a secret. According to herpetologists who recently used DNA barcoding on the species, showed that what we currently call Warszewitsch’s frog is indeed a group of ‘cryptic’ species. Leer más.
