<b> MAMÍFEROS DE GUERRERO<B>

Abstract

ResumenEl estado de Guerrero se encuentra ubicado en el centro poniente de México, al sur del Eje Volcánico Transversal. Con objeto de actualizar el conocimiento de los mamíferos nativos del estado, se revisó la literatura disponible en referencia a dichos animales que h an sido registrados en el territorio estatal, encontrando que la mayor parte de los estudios se han realizado en los últimos 60 años. Diez órdenes, 29 familias (72.5% del total nacional), 105 géneros (58.01%) y 154especies (28.79%) de mamíferos, de las cuales 50 son monotípicas y 104 politípicas; 35 especies son endémicas al país y tres al estado. Los órdenes mejor representados son Chiroptera (66 especies), Rodentia (36), Carnivora (20) y Cetacea (17); con 31 taxones des critos con base en ejemplares procedentes del estado. En cuanto a la distribución de las especies, ha y una mayor presencia de especies terrestres con afinidad Mesoamericana (70) que Neotropical (36) o Neártica (31), mientras que dentro de las especies del orden Cetacea, 13 son de afinidad Tropical y cuatroAntitropical. Se han registrado al menos 40 especies en algún listado de conservación nacional o internacional. Se considera que una especie ha replegado su distribución actual o que fue extirpada del estado. Dos especies de pinnípedos han sido registradas una única vez por lo que han sido consideradas en este trabajo como registros de ocurrencia extralimital.Palabras clave: centro poniente de México, conservación, distribución, diversidad, mastofauna.AbstractThe state of Guerrero is located in West Central México, south from the Trans-Mexican Volcanic Belt. In order to learn about the current native mammals from the state, available literature of mammal records in the state was reviewed, finding that most studies have b een carried out in the last 60 years. Ten orders, 29 families (72.5% national wide), 105 genera (58.01%), and 154 species(28.79%), including 50 monotypic and 104 politypic; 35 species are endemics to the country and three to the state. The most diverse orders are Chiroptera (66 species), Rodentia (36), Carnivora (20), and Cetacea (17); 31 taxa were described based on specimens collected in the state. In regard to the species distributional affinities, most terrestrial are Mesoamerican (70), then Neotropical (36) and Nearctic (31), while for the Order Cetacea there are 13 Tropical and four Antitr opical. There are at least 40 species recorded on national or international conservation lists. Only one species has reduced its distribution or has been extirpated from the state and, two species of pinnipeds have been registered only once, in this paper we have considered them as outliers.Key words: conservation, distribution, diversity, mammal fauna, West Central México.

Notes on Vampyressa thyone (Chiroptera: Phyllostomidae): distribution, genetics and hypopigmentation

“…The new specimen reported here represents the first record in the Mexican state of Guerrero, according to the most recent mammal checklist for the state (Espinosa-Martínez et al 2017), the distribution of the samples used in the systematic revision of V. thyone (Lim et al 2003) and in a previous range extension work (Brosset & Charles-Dominique 1990). This specimen extends the northwestern limit of the species' distribution by more than 153 Km and increases the bat diversity of Guerrero to 67 species.…”

“…This specimen extends the northwestern limit of the species' distribution by more than 153 Km and increases the bat diversity of Guerrero to 67 species. In Mexico, this state is considered one of the most diverse in terms of mammal species, despite reduced sampling effort by field researchers over the past 50 years due to social and security problems (Espinosa-Martínez et al 2017). Increased sampling effort is necessary, mainly in Eastern Guerrero, because we suspect that other Stenodermatinae species with ecological requirements similar to V. thyone (such as Chiroderma villosum or Platyrrhinus helleri, which have their limits until Oaxaca state; Pacheco R., 2014; Tellez-Giron, 2014), could inhabit Guerrero due to the continuity of habitats and absence of geographical barriers.…”

Northwesternmost records of Vampyressa thyone Thomas, 1909 (Chiroptera, Phyllostomidae) from Sierra de Atoyac, Guerrero, M&eacute;xico

“…This species is apparently rare in Mexico and Central America, with individuals known from only few sites (Téllez-Girón 2014;Ordoñez-Mazier et al 2020). A single male V. thyone was recently reported in eastern Guerrero, Mexico, extending the known distribution of the species to the northwest; given this record, increased sampling effort was recommended for that Mexican state to improve basic knowledge of Neotropical bats (Hernández-Canchola et al 2019) and mammal species in general (Espinosa-Martínez et al 2017;Osorio-Rodriguez et al 2021). As a result of that recommendation, we conducted fieldwork in south-central Guerrero, which allowed for the discovery of new northwesternmost records of V. thyone.…”