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Using sighting records to infer extinction in three endemic A rgentinean marsupial frogs
Author(s) -
Akmentins M. S.,
Pereyra L. C.,
Vaira M.
Publication year - 2012
Publication title -
animal conservation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.111
H-Index - 85
eISSN - 1469-1795
pISSN - 1367-9430
DOI - 10.1111/j.1469-1795.2011.00494.x
Subject(s) - marsupial , endangered species , extant taxon , biology , amphibian , extinction (optical mineralogy) , ecology , conservation status , zoology , threatened species , habitat , evolutionary biology , paleontology
Three species of marsupial frogs of the genus G astrotheca are at the forefront of amphibian conservation concern in A rgentina. Most of the data available on these amphibian species in the country are in the form of museum collections. In this study, we use the recent rediscovery of G . gracilis to test the applicability of a series of probabilistic methods and a trend analysis to analyse the sighting records in the marsupial frog species of A rgentina, and to assess the probability that G . christinani and G . chrysosticta are still extant. The results suggest that the two marsupial frog species are still extant, but probably declining. Based on these results, we suggest as a precautionary measure to raise the actual conservation status of these marsupial frog species to Critically Endangered.