The spectacled caiman (Caiman crocodilus) and the black caiman (Melanosuchus niger) occupy the same space and eat the same food, which could generate competition between the two species and perhaps delay the recovery of the conservation-dependent black caiman crocodile. Leer más.
Aprovecho para presentaros lo último que me ha llegado sobre este tema. Es el proyecto de Master que han realizado en la Universidad de Oporto: Patterns of biological invasion in the herpetofauna of the Balearic Islands: Determining the origin and predicting the expansion as conservation tools. (Los patrones de invasión biológica en la herpetofauna de las Islas Baleares: Determinar el origen y la predicción de la expansión como herramientas de conservación.). Leer más.
Invasive alien American bullfrog populations are commonly identified as a pernicious influence on the survival of native species due to their adaptability, proliferation and consequent ecological impacts through competition and predation. However, it has been difficult to determine conclusively their destructive influence due to the fragmentary and geographically dispersed nature of the historical database. An expanding meta-population of invasive American bullfrogs, Rana catesbeiana (= Lithobates catesbeianus), became established on southern Vancouver Island, British Columbia, Canada in the mid- to late 1980s. Leer más.
As part of a “Lazarus Project” to try to bring the Australian gastric-brooding frog back from extinction a UNSW-led team has succeeded in producing early stage cloned embryos containing the DNA of the frog, which died out 30 year ago. The unpublished research is presented publicly for the first time at the TEDx DeExtinction conference in Washington today. Gastric-brooding frogs were unique in incubating their young in their stomachs. Leer más.
Pressing Problems: Distribution, Threats, and Conservation Status of the Monitor Lizards (Varanidae: Varanus spp.) of Southeast Asia and the Indo-Australian Archipelago Monograph 3. André Koch, Thomas Ziegler, Wolfgang Böhme, Evy Arida and Mark Auliya. Para descargar la monografía presionar en el siguiente enlace.
