Amphibian Specialist Group

Madagascar

Amphibian Specialist Group

Madagascar
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Rosa G.M.,University of Kent | Rosa G.M.,UK Institute of Zoology | Rosa G.M.,University of Lisbon | Crottini A.,University of Porto | And 4 more authors.
Salamandra | Year: 2014

We describe a new arboreal and diminutive species of the genus Platypelis from the Réserve Naturelle Intégrale N. 1 de Betampona, one of the last low-altitude rainforest fragments of eastern Madagascar. P. karenae sp. nov. is a phytotelmic species, living among leaves of Pandanus spp. and those of a herbaceous plant of the genus Crinum. Amongst species of comparable size, the new species is most similar to P. tetra, with which it shares a similar life history of occupying leaf axils of phytotelms. Phylogenetically, P. karenae is sister to P. tuberifera yet differentiated by a high level of genetic divergence (>7% p-distance for the analysed fragment of the 16S rRNA gene), its distinctly smaller size, acoustic repertoire, and colour pattern. The mitochondrial, nuclear, bioacoustic, and morphological data all independently support the validity of this new species. © 2014 Deutsche Gesellschaft für Herpetologie und Terrarienkunde e.V. (DGHT), Mannheim, Germany.


Carpenter A.I.,University of East Anglia | Andreone F.,Amphibian Specialist Group | Moore R.D.,Wildlife Conservation Society | Griffiths R.A.,University of Kent
ORYX | Year: 2014

Globally, amphibians face many potential threats, including international trade. However, there is a lack of knowledge regarding the types, levels and dynamics of the amphibian trade at the global scale. This study reviewed the trade in CITES-listed species between 1976 and 2007. Four main trade groups (eggs, skins, meat and individuals) were identified. Trade in amphibian leather focused on Hoplobatrachus tigerinus (5,572 individuals), whereas trade in eggs focused on Ambystoma mexicanum (6,027 eggs). However, for the entire study period (1976-2007), trade in skins and eggs was small compared with trade in meat and live animals. The meat trade was estimated to be worth > USD 111 million, whereas the trade in live animals was estimated to be worth > USD 11.5 million in only three of the genera involved. Trade dynamics have changed as a result of changes in legislation, such as a ban on H. tigerinus exports from Bangladesh for meat. Within the live trade 22 species categorized as either Critically Endangered or Endangered were traded during the study period, and these require greater attention. International trade and potential conservation benefits are affected by countries supplying captive-bred individuals to their domestic markets as this trade goes unrecorded. However, this study only investigated trade in species listed by CITES, and other species may comprise a significant additional component of international trade. The trade in amphibians is dynamic, and changes in both the types of trade and the species concerned were identified over the study period. Conservation concerns have multiplied from issues concerning population depletions to include indirect impacts associated with disease, predation and competition, which requires a reappraisal of data capture and reporting. Copyright © Fauna & Flora International 2014.


Soamiarimampionona J.,Association Mitsinjo andasibe | Sam S.S.,Association Mitsinjo andasibe | Dolch R.,Association Mitsinjo andasibe | Klymus K.,University of Toledo | And 4 more authors.
Alytes | Year: 2015

Conservation breeding programmes are increasingly needed for amphibians given the ongoing amphibian extinction crisis, yet key aspects of husbandry such as larval diet remain understudied and in many cases completely unknown. In Madagascar, enacting such programmes can also be challenging due to the unavailability of diets designed specifically for tadpoles. We tested three diets locally available in Madagascar - mustard greens, spirulina algae, and atyid shrimp - on the larvae of Mantidactylus betsileanus and recorded their growth and development. Tadpoles fed mustard greens took longer to develop and completed metamorphosis at a smaller size. No difference was found in the survival of tadpoles between treatments. These results suggest that mustard greens are a poor food source for rearing M. betsileanus and similar species. Instead, spirulina and atyid shrimp should be used, although other alternatives such as commercially manufactured tadpole and fish foods might yield even better results. © ISSCA and authors 2015.

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