scholarly journals MAMÍFEROS DE AGUASCALIENTES

2015 ◽  
Vol 5 (2) ◽  
pp. 1
Author(s):  
Mariana Chávez-Andrade ◽  
Jaime Luévano-Esparza ◽  
Gustavo E. Quintero-Díaz ◽  
Horacio V. Bárcenas ◽  
Gerardo Ceballos
Keyword(s):  
Conservation Status ◽  
Endangered Species Act ◽  
Mammalian Fauna ◽  
Mammal Species ◽  
Leopardus Pardalis ◽  
Taxidea Taxus ◽  
Mammal Fauna ◽  
Palabras Clave ◽  
American Badger ◽  
Leptonycteris Nivalis

RESUMENEl estado de Aguascalientes es uno de los más pequeños de la república, y ocupa el lugar 29 por su extensión territorial. Dada su superficie territorial, su diversidad de mamíferos es una de las menores entre los estados del país. Aguascalientes no cuenta con una lista actualizada. Aquí reportamos 86 especies de mamíferos. El orden con mayor número de especies es Rodentia, seguido por el Chiroptera; ambos incluyen el 71% de la mastofauna del estado. No hay especies endémicas al estado, pero dos especies de murciélagos, seis de roedores y un carnívoro son endémicas de México. Según la norma oficial mexicana (NOM-059-SEMARNAT-2010) de especies en riesgo de extinción, la musaraña (Notiosorex crawfordi), el tejon (Taxidea taxus) y tres murciélagos (Choeronycteris mexicana, Leptonycteris nivalis y L. yerbabuenae) se encuentran en la categoría de Amenazada (A) y Leopardus pardalis (ocelote) está en Peligro de extinción (P). Palabras clave: Mamíferos, Aguascalientes, Estado de conservación.ABSTRACTThe state of Aguascalientes is very small in size and has a relatively small mammalian fauna diversity. There is not an updated checklist of the mammal fauna of the state, so here we reported 86 species; the orders Rodentia and Chiroptera are the most diverse and together comprised 71% of the mammal species. There are no endemic species in Aguascalientes, but two bat species and six rodents are endemic to Mexico. According to the Mexican endangered species act (NOM-059-SEMARNAT-2010), the dessert shrew (Notiosorex crawfordi), the American badger (Taxidea taxus), and three species (Choeronycteris mexicana, Leptonycteris nivalis and L. yerbabuenae, are listed as threatened species, and the ocelot (Leopardus pardalis) as endangered. Key words: Mammals, Aguascalientes, Conservation status.

scholarly journals Mammal richness and diversity in Serra do Facão region, Southeastern Goiás state, central Brazil

2015 ◽  
Vol 15 (4) ◽  
Author(s):  
Leonardo de Paula Gomes ◽  
Clarisse Rezende Rocha ◽  
Reuber Albuquerque Brandão ◽  
Jader Marinho-Filho
Keyword(s):  
Species Diversity ◽  
Camera Traps ◽  
Mammalian Fauna ◽  
Mammal Species ◽  
Central Brazil ◽  
Direct Observations ◽  
Mammal Fauna ◽  
Before And After ◽  
Short Time ◽  
Reservoir Filling

At least 251 mammal species are recorded for the Brazilan cerrado, which, therefore, is the third richest Brazilian biome. Most mammal surveys in Brazilian cerrado result from studies performed opportunistically and in short time periods. The aims of the present study were (1) provide a checklist for the mammalian fauna based on a five-year sampling in Serra do Facão region, Southeastern Goiás state; (2) compare small non-flying mammals diversity in open and forest areas and (3) compare species diversity before and after the flood caused by a hydroelectric reservoir filling. The data was gathered in 19 sampling periods, from May 2008 to September 2013. We sampled open and forest habitats and captured non-flying small mammals with Sherman and Tomahawk live traps and pitfalls; bats were sampled with mist-nets; large mammals were recorded with camera traps, and by direct observations and track surveys in field. We found 20 species of small non-flying mammals, 10 species of bats and 33 species of larger mammals. Species diversity was greater for forest than open habitats, and was also greater before than after the complete reservoir filling. About 10% of the recorded species are included in the Brazilian official list of threatened species. The total richness represents 25% of all cerrado mammal fauna, highlighting the importance of this area for regional mammal fauna conservation.

scholarly journals Distributional patterns and conservation status of mammals of Swaziland, southern Africa

Koedoe ◽  
1998 ◽  
Vol 41 (2) ◽  
Author(s):  
A. Monadjem
Keyword(s):  
Species Richness ◽  
Conservation Status ◽  
Vegetation Types ◽  
Mammalian Fauna ◽  
Lycaon Pictus ◽  
Mammal Species ◽  
Savanna Vegetation ◽  
Distributional Patterns ◽  
Privately Owned ◽  
Effective Conservation

Distributional patterns (mapped at the quarter-degree square scale) of species richness of 121 species of mammals recorded from Swaziland were examined in relation to the distribution of protected areas (reserves), privately-owned ranches and six vegetation types. The richness of mammal species was highest in the NE and NW, and lowest in the SW areas of Swaziland. Total mammal species richness was positively and highly significantly correlated with the presence of reserves. Similar patterns were shown by artiodactyls, rodents and carnivores. Total mammal species richness, as well as for most mammalian orders, was positively correlated with moist grassveld and moist savanna vegetation types but negatively correlated with dry grassveld. Mammal species richness, especially for the larger species, was very low on Swazi Nation Land, which covers about 60 of the country. The mammalian fauna of the high-lying areas (Highveld) was distinct from that of the low-lying areas (Lowveld). The Middleveld region supported elements of both Highveld and Lowveld species. A large proportion (87.6 ) of Swaziland's mammal species have been recorded from reserves. Two species {Alcelaphus lichtensteini and Lycaon pictus) no longer occur in Swaziland. For effective conservation of Swaziland's mammals, the issue of how to maintain viable populations on Swazi Nation Land will have to be addressed.

scholarly journals An Addition to the Mammalian Fauna of Saskatchewan: The Western Harvest Mouse, Reithrodontomys megalotis

2012 ◽  
Vol 126 (2) ◽  
pp. 95
Author(s):  
Gilbert Proulx ◽  
Benjamin P. Proulx
Keyword(s):  
British Columbia ◽  
Vulpes Vulpes ◽  
Red Fox ◽  
Mammalian Fauna ◽  
Taxidea Taxus ◽  
South Central ◽  
Reithrodontomys Megalotis ◽  
American Badger ◽  
First Time ◽  
Harvest Mouse

The Western Harvest Mouse (Reithrodontomys megalotis) is rare in Canada, and its distribution is believed to be restricted to south-central British Columbia and southeastern Alberta. Between 2008 and 2010, we identified Western Harvest Mouse hairs in 71 of 1424 scats (5%) of Red Fox (Vulpes vulpes), Coyote (Canis latrans), American Badger (Taxidea taxus), and Long-tailed Weasel (Mustela frenata) collected in southwestern Saskatchewan. The presence of Western Harvest Mouse was confirmed at the same latitude as populations reported in Alberta and British Columbia, in scats collected in or nearby grasslands. This is the first time that the presence of the Western Harvest Mouse has been confirmed in Saskatchewan.

Biogeography and conservation of non-volant mammals from the Urucum Mountains: a Chiquitano dry forest ecoregion in western Brazil

Mammalia ◽  
2017 ◽  
Vol 81 (2) ◽  
Author(s):  
Wellington Hannibal ◽  
Mauricio Neves Godoi ◽  
Walfrido Moraes Tomas ◽  
Grasiela Porfirio ◽  
Vanda Lúcia Ferreira ◽  
...  
Keyword(s):  
Species Composition ◽  
Conservation Status ◽  
Indirect Evidence ◽  
Camera Traps ◽  
Dry Forest ◽  
Amazon Forest ◽  
Mammalian Fauna ◽  
Mammal Species ◽  
Comprehensive Overview ◽  
Biogeographic Patterns

AbstractThe distributional data of mammalian fauna are important to reach a comprehensive overview of biogeographic patterns and to highlight regional conservation status, especially in a poorly known region such as the Chiquitano dry forest in western Brazil. Our aims were to survey the mammal species occurring in the Urucum Mountains, located in the southeast end of the Chiquitano forest, compare its species composition to areas elsewhere in different ecoregions, and discuss their conservation statuses. Small mammals were sampled using pitfall and live traps, and medium and large mammals were sampled by direct observation, indirect evidence (e.g. faeces and tracks), and camera traps. Patterns of species composition were compared to other surrounding areas of different ecoregions in South America using multivariate analyses. The results indicated that both faunas have similar biogeographical influences. The Urucum Mountains have an influence on the faunas from the Cerrado, Chaco and Pantanal ecoregions, and only secondarily from forested ecoregions (e.g. Amazon forest). The Urucum harbours a rich non-volant mammalian fauna with species that are widely and restrictedly distributed. The conservation of Urucum Mountains is important because these mountains harbour threatened plant, invertebrate, and vertebrate (mammals) species, which could be suffering due to the mining activity carried out in the region. We stress that the Chiquitano dry forest is unique to western Brazil, situated in a complex biogeographical region, and harbouring a rich and diversified mammal fauna.

scholarly journals Taxonomy, Conservation, and the Future of Native Aquatic Snails in the Hawaiian Islands

Diversity ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 215
Author(s):  
Carl C. Christensen ◽  
Kenneth A. Hayes ◽  
Norine W. Yeung
Keyword(s):  
Invasive Species ◽  
Conservation Status ◽  
Endangered Species Act ◽  
Habitat Requirements ◽  
Freshwater Snails ◽  
Full Understanding ◽  
State Legislation ◽  
The World ◽  
Threatened Habitats ◽  
Life On Earth

Freshwater systems are among the most threatened habitats in the world and the biodiversity inhabiting them is disappearing quickly. The Hawaiian Archipelago has a small but highly endemic and threatened group of freshwater snails, with eight species in three families (Neritidae, Lymnaeidae, and Cochliopidae). Anthropogenically mediated habitat modifications (i.e., changes in land and water use) and invasive species (e.g., Euglandina spp., non-native sciomyzids) are among the biggest threats to freshwater snails in Hawaii. Currently, only three species are protected either federally (U.S. Endangered Species Act; Erinna newcombi) or by Hawaii State legislation (Neritona granosa, and Neripteron vespertinum). Here, we review the taxonomic and conservation status of Hawaii’s freshwater snails and describe historical and contemporary impacts to their habitats. We conclude by recommending some basic actions that are needed immediately to conserve these species. Without a full understanding of these species’ identities, distributions, habitat requirements, and threats, many will not survive the next decade, and we will have irretrievably lost more of the unique books from the evolutionary library of life on Earth.

scholarly journals Primer registro del tlalcoyote (Taxidea taxus) en la Reserva de la Biosfera Sierra Gorda, Guanajuato

2019 ◽  
Vol 9 (1) ◽  
pp. 44
Author(s):  
J. Manuel Rangel-Rojas ◽  
Juan F. Charre-Medellín ◽  
Tiberio Monterrubio-Rico ◽  
Gloria Magaña-Cota
Keyword(s):  
Biosphere Reserve ◽  
Camera Trap ◽  
Management Plan ◽  
Camera Trapping ◽  
Taxidea Taxus ◽  
San Luis ◽  
Influence Area ◽  
San Luis Potosi ◽  
American Badger ◽  
Established Population

ResumenEn el estado de Guanajuato se confirmó la presencia de tlalcoyote (Taxidea taxus) mediante fototrampeo. Estos registros se localizan en la zona de influencia de la Reserva de la Biosfera Sierra Gorda de Guanajuato (RBSGG) y complementan ellistado de mamíferos reportados en la reserva. Los registros más cercanos de tlalcoyote se localizan a 90 km al noroeste en el estado de San Luis Potosíy a 105 km al suroeste del registro colectado en Silao, Guanajuato por Alfredo Dugès en 1874. Es fundamental incluir al tlalcoyote dentro del plan de manejo de la rbsgg con el fin de implementar acciones para su monitoreo y conservación a largo plazo, así como confirmar si en la región puede existir una población establecida y que no se trate de individuos errantes.Palabras clave: cámaras trampa, matorral xerófilo, mustelidae, Sierra Gorda, tejón norteamericano.AbstractIn Guanajuato state is confirmed the presence of tlalcoyote (Taxidea taxus) by camera trapping. These records are located in the influence area of the Sierra Gorda of Guanajuato Biosphere Reserve (RBSGG) and complement the list of mammals reported for the reserve. The nearest tlalcoyote records are located 90 km at northwest in San Luis Potosí state and 105 km at southwest from the recordcollected in Silao, Guanajuato by Alfredo Dugès in 1874. Is essential to include the tlalcoyote within the management plan of the rbsgg to implement actions of monitoring and conservation and confirm that in the region there may be an established population and it’s are not of errant individuals.Key words: American Badger, camera trap, mustelidae, Sierra Gorda, xerophytic scrub. 

Anthropogenic perturbation modifies interactions between mammals and fruits in a tropical forest of southern Mexico

2021 ◽  
Vol 71 (3) ◽  
pp. 311-327
Author(s):  
Mayra Zamora-Espinoza ◽  
Juan Carlos López-Acosta ◽  
Eduardo Mendoza
Keyword(s):  
Daily Activity ◽  
Interaction Strength ◽  
Biotic Interactions ◽  
Camera Traps ◽  
Canis Lupus Familiaris ◽  
Mammalian Fauna ◽  
Mammal Species ◽  
Southern Mexico ◽  
Field Station ◽  
The Impact

Abstract Studies of tropical mammal defaunation highlight the loss of species as well as their reduction in abundance and diversity; however, there is a complex series of effects associated with this anthropogenic disruption, including increases in the relative abundance of disturbance-tolerant mammals and the arrival of alien mammals whose effects on biotic interactions have been poorly studied. We compared the species richness, composition, interaction strength, and patterns of daily activity of mammals that consume the fruits of Pouteria sapota on the forest floor, both inside and outside of the Los Tuxtlas Field Station (LTFS) in Veracruz, southern Mexico. Using camera traps, we recorded eight mammal species interacting with the fruits inside the LTFS ( trees) and nine species interacting outside ( trees). Alien species such as Canis lupus familiaris were recorded both inside and outside of the LTFS, whereas Bos taurus was only recorded outside. Medium-sized generalist mammals were overrepresented both inside and outside of the LTFS, evidencing an impoverishment of the fauna, when compared to the mammal assemblage reported to interact with P. sapota fruits in a more intact forest. The daily activity patterns of the mammals that interacted strongly with P. sapota fruits were different inside and outside the LTFS, particularly in the case of Cuniculus paca. Our results show that the impact of human activity is highly pervasive, directly affecting the mammalian fauna at different levels and indirectly affecting the biotic interactions in which these animals are involved.

Mammals

Monteverde ◽  
2000 ◽  
Author(s):  
Robert M. Timm ◽  
Richard K. LaVal
Keyword(s):  
Costa Rica ◽  
Land Surface ◽  
Mammal Species ◽  
Human Disturbances ◽  
Habitat Changes ◽  
Mammal Fauna ◽  
Neotropical Mammals ◽  
Life Zone ◽  
Systematic Relationships ◽  
Diverse Groups

Costa Rica is one of the most biotically diverse countries on earth, with 4% of known terrestrial plant and animal species in only 0.04% of the world’s land surface. The country’s mammal fauna is equally diverse, with more than 207 species (4.8% of the world’s 4629 species) in an area of 51,022 km2. The majority of the world’s mammal species and Monteverde’s fauna are small (< 0.5 kg), nocturnal, and secretive. We know considerably less about most neotropical mammals and other vertebrates than we do about birds, which are more easily observed and communicate with sounds audible to humans. Although certain species of mammals have been studied in Costa Rica (Janzen 1983a, Timm 1994, Vaughan and Rodríguez 1994), and Monteverde is one of the best-known regions of the country biologically, there has been little work on the ecology, distribution, abundance, altitudinal zonation, systematic relationships, and biogeography of most mammals. Deforestation and other human disturbances have had a significant impact on the native mammals of the region; knowledge of Monteverde’s mammals is vital to understand how habitat changes affect tropical montane mammals. In this chapter, we provide an overview of the mammal fauna of the Monteverde area. We discuss the biology and abundance of some of the area’s species, document how these are changing, and explore conservation issues. Most of the research on mammals at Monteverde has centered on bats or rodents, the two most diverse groups. Much of our knowledge of other species consists of isolated observations. We augment published reports with unpublished observations made by ourselves and colleagues. We also examined most of the Monteverde mammal specimens in museum collections to verify species identifications and to understand better their systematics, ecology, and distribution. We integrate this information into a list of the mammals that occur in the region, document their occurrence in each life zone, and estimate their overall abundance.

11. Humans and mammals: the past and the future

2017 ◽  
pp. 128-138
Author(s):  
T. S. Kemp
Keyword(s):  
Human Activity ◽  
Mammalian Species ◽  
Mammalian Fauna ◽  
Mammal Species ◽  
The Past ◽  
The Future ◽  
Huge Impact

From the very start of the spread of humans, the world’s mammals have been irreversibly, and mostly detrimentally, affected through direct exploitation for food and for skins to make clothes and shelter. Our domestication of certain mammal species has also had a huge impact on the rest of the world’s mammalian fauna, and indeed on its whole biota. ‘Humans and mammals: the past and the future’ considers how human activity has caused the latest megafaunal extinction and looks at the future crisis facing many mammalian species. A quarter of mammalian species are, today, faced with severe population decreases that may result in extinction. What can be done to conserve them?

scholarly journals Carnivores (Mammalia) from areas of Nearctic–Neotropical transition in Puebla, central Mexico: presence, distribution, and conservation

Check List ◽  
2016 ◽  
Vol 12 (1) ◽  
pp. 1833 ◽  
Author(s):  
Osvaldo Eric Ramírez-Bravo ◽  
Lorna Hernandez-Santin
Keyword(s):  
Habitat Loss ◽  
Conservation Status ◽  
The State ◽  
Lynx Rufus ◽  
Risk Category ◽  
Central Mexico ◽  
Leopardus Pardalis ◽  
Lethal Control ◽  
Hunting Pressure ◽  
Carnivore Species

The Nearctic and Neotropical realms converge in central Mexico, where many areas have not been adequately characterized. Our objective was to revise the distribution and conservation status of carnivores in the state of Puebla, central Mexico. Between September 2008 and January 2011, we conducted interviews and fieldwork on seven previously selected areas. We complemented our data with bibliographical research. We obtained 733 records for 21 species, representing 63% of the carnivores reported for Mexico. We expanded known ranges of three species: Ocelot (Leopardus pardalis), Bobcat (Lynx rufus), and Tropical Ringtail (Bassariscus sumichastrii). Fifty percent of the carnivore species we recorded in Puebla are considered under some risk category. We found that carnivores in our study area are vulnerable to hunting pressure, human-carnivore conflicts that result in lethal control practices, and extensive habitat loss.

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