Range extension of Cryptonanus agricolai (DIDELPHIMORPHIA, DIDELPHIDAE) and first record in the Atlantic Forest core
Abstract
According to the Wallacean shortfall, knowledge about the geographic distribution of most species is still incomplete. Cryptonanus agricolai (Moojen, 1943) is a didelphid marsupial considered Data Deficient by IUCN, since species records are few and sparse. Although little information is available for the species, it is commonly associated with xeric habitats from Caatinga and open formations of the Cerrado in east-central Brazil. Here we report the first records of C. agricolai in the Atlantic Forest core, a new ecoregion of occurrence for the species, based on a recent collected voucher - identified through morphological and molecular analysis - from a Mussununga formation in Reserva Biologica do Corrego do Veado, southeastern Brazil. This record extends the occurrence of the species to more than 1 700 000 km2 and lower its altitudinal range limit to 108 m.\n\nRESUMOAmpliacao da distribuicao de Cryptonanus agricolai (Didelphimorphia, Didelphidae) e primeiro registro no centro da Mata Atlantica. De acordo com a Lacuna Wallaceana, o conhecimento sobre a distribuicao geografica da maioria das especies esta incompleto. Cryptonanus agricolai (Moojen, 1943) e um marsupial didelfideo classificado pela IUCN na categoria Dados Insuficientes, uma vez que os registros existentes sao poucos e esparsos. Embora haja pouca informacao disponivel para tal especie, ela e comumente associada a habitats xericos da Caatinga e formacoes abertas do Cerrado no centro-leste do Brasil. Aqui relatamos os primeiros registros de C. agricolai na Mata Atlantica, notadamente uma nova ecorregiao de ocorrencia para a especie, com base em um especime recentemente coletado - e identificado atraves de analises morfologicas e moleculares - em formacao de Mussununga na Reserva Biologica do Corrego do Veado, sudeste do Brasil. Nossos achados ampliam a ocorrencia da especie para mais de 1 700 000 km2 e estabelece novo limite inferior de altitude para 108 m. Palavras-chave. Corredor Central da Mata Atlantica. Lacuna Wallaceana. Marsupial. Mussununga.
02 /Specification & Classification
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