Autor: Rubén M. Barquez

Rubén Barquez

Nueva especie de Eptesicus (Chiroptera, Vespertilionidae) para Argentina

, ,

Hasta el momento solo se conocían tres especies de murciélagos del género Eptesicus en la Argentina, E. brasiliensis, E. furinalis y E. diminutus, las que podían diferenciarse con relativa claridad siguiendo los caracteres y diagnosis de la literatura. Nuestros estudios permitieron incorporar una cuarta especie, Eptesicus chiriquinus, que hasta ahora solo era conocida hasta el centro de Bolivia, por lo que nuestro registro amplía su distribución hasta la provincia de Jujuy, unos 600 kilómetros hacia el Sur.

A new species of Eptesicus (Chiroptera, Vespertilionidae) for Argentina. Here we report the inclusion of a new species of bat of the genus Eptesicus for Argentina. This is the fourth species of the genus for the country, and it was recently collected in the province of Jujuy. The other three species previously recorded for Argentina are E. brasiliensis, E. furinalis, and E. diminutus. A detailed analysis indicated us that the new species is E. chiriquinus, previously known only to central Bolivia, at about 600 km North of the new locality reported here for Argentina.

Comentarios sobre la distribución de Abtrothrix andinus y Calomys lepidus (Rodentia: Cricetidae) en la provincia de Tucumán, Argentina

,

Se ofrece información sobre las comunidades de micromamíferos que habitan las altas cumbres de la provincia de Tucumán, por encima de 4000 m, con especial referencia a dos especies de roedores sigmodontinos. Se confirma la presencia de Abrothrix andinus y Calomys lepidus y se destaca la alta frecuencia de estos taxones en las estepas altoandinas de las Cumbres Calchaquíes y Nevados del Aconquija. Se amplía la distribución de Abrothrix andinus en Tucumán y se suman dos localidades, y se extiende la distribución conocida de Calomys lepidus unos 200 km al sur.

Comments on the distribution of Abrothrix andinus and Calomys lepidus (Rodentia: Cricetidae) in Tucumán Province, Argentina. Information on the small mammal’s communities inhabiting the highlands of Tucumán Province is provided. The presence of Abrothrix andinus and Calomys lepidus are confirmed for the province and new localities for their distribution are added. The distribution of Abrothrix andinus in Tucumán is extended and two localities are added; also the distribution of Calomys lepidus is extended for about 200 km South of its previous known distribution.

Aportes al conocimiento de la distribución de los carnívoros del noroeste de Argentina

, , ,

En este trabajo se agregan 151 nuevas localidades de distribución para 20 especies de carnívoros del noroeste argentino: cinco cánidos, nueve félidos, cuatro mustélidos y dos prociónidos. Se agregan tres especies a la fauna conocida de la provincia de Santiago del Estero y dos a la de Jujuy.

Contribution to the knowledge of the distribution of the carnivores of northwestern Argentina. Northwestern Argentina includes the provinces of Jujuy, Salta, Tucumán, Catamarca, and Santiago del Estero and is a unique area where biotic and abiotic factors have a significant influence on faunal patterns. Most species of carnivores that occur in Argentina are found in this region, with the exception of Speothos venaticus, Oncifelis guigna, Lontra provocax, L. felina, and Conepatus humboldtii. Distributional records were obtained from specimens deposited in systematic collections in Argentina and the United States, as well as from field surveys and personal communication from field workers at collecting localities. One hundred and fifty one new localities for carnivores in northwestern Argentina are presented, and include information on five canids, nine felids, four mustelids and two procyonids. Three species are added to the mammal fauna of the province of Santiago del Estero and two species are added to the mammal fauna of Jujuy province.