Therya

<font color="#000080">Therya is an official publication of the Asociación Mexicana de Mastozoología and is published three times per year. The aims and scope of THERYA are to be a journal devoted to the publication of articles on all mammal aspects. Research papers, as well as editorials, comments and research notes are welcome. Three-times-a-year publication.<br></font><br>

List of Papers (Total 738)

Abundancia y densidad de venado cola blanca (Odocoileus virginianus couesi) en Sierra de San Luis, Sonora, México

White-tailed deer are an ecologically and economically important species in Mexico, with limited information on population status throughout the country. The aim of this study was to estimate the abundance and density of white-tailed deer using an alternative method with camera traps in northeastern Sonora, Mexico. We placed 31camera traps with attractants along trails and major...

Abundancia relativa de tres ungulados en la Reserva de la Biosfera "La Sepultura

Large mammals have important roles in the dynamics of Neotropical rainforests. However, their ecology has barely been studied in the forests and tropical forest of southern Mexico. In the present study, we assessed the relative abundance in populations of Baird's tapir Tapirus bairdii, white-tailed deer Odocoileus virginianus, and collared peccary Pecari tajacu, along 246.4 km of...

El Venado Cola Blanca en la mixteca poblana

The objective of this study is to present progress on management and conservation of with tailed-deer (Odocoileus virginianus) at the Mixteca poblana; an ethnic region whit 47 municipalities and 10,565.7 km2, whit semiarid and arid climates, rangeland slopes with tropical dry forest and xerophytes shrubs, where the Mexican subspecie of white-tailed deer mexicanus is distributed...

The International Federation of Mammalogists: What is it and what does it do?

Carta al editor The International Federation of Mammalogists: What is it and what does it do? The IFM is a federation of organizations from throughout the world that serves "to promote international cooperation and understanding in the science of mammalogy." All scientists interested in research on mammals should therefore know about this organization, and support it when...

Semblanza del Dr. David J. Schmidly

Notas Semblanza del Dr. David J. Schmidly Livia León Paniagua1 Presentada en el congreso Nacional de Mastozoología al recibir el premio "Ticul Álvarez" de la Asociación Mexicana de Mastozoología A. C. 1 Museo de Zoología, Facultad de Ciencias, Universidad Nacional Autónoma de México. Es para mí un honor hablar de una persona tan querida como lo es el Dr. David J. Schmidly. Cuando...

Importancia de los detectores ultrasónicos para mejorar los inventarios de murciélagos Neotropicales

This study demonstrates the usefulness of ultrasonic bat detectors as a methodological tool to improve inventories of Neotropical bats to increase 40% the inventory of bats recorded with traditional capture methods in a deciduous lowland dry forest site in the Yucatan Peninsula.Keywords : Chiroptera; bats; bat detectors; deciduous lowland forest; diversity inventories; Yucatan.

Primeros registros del murciélago vampiro de pata peluda (Diphylla ecaudata) para el estado de Guanajuato, México

We collected three specimens and two photograph records of the hairy-legged vampire bat (Diphylla ecaudata) in the municipalities of Victoria and Xichú. These are the first records of this species in Guanajuato, Mexico. Diphylla ecaudata feeds on avian blood. D. ecaudata is a bat with a long, silky and brown dorsal fur, and white color in the base. It usually inhabits tropical...

Feral cats steal milk from northern Elephant Seals

Feral cats abound at Isla de Guadalupe; they forage on birds, mice, and placental tissue as well as carcasses of northern elephant seals (Mirounga angustirostris), Guadalupe fur seal (Arctocephalus townsendi), California sea lions (Zalophus californianus) and stranded cetaceans such as Cuvier's beaked whale (Ziphius cavirostris). We have found that feral cats are also drinking...

Los mamíferos en el Estado de Hidalgo, México

The mammal of the state of Hidalgo, Mexico, is little known, with the objective of contributing to the knowledge of the richness of the mammals of this state, we compiled information from the records of mammal species distributed in the state through an intensive search in international and national scientific collections, and literature. The mastofaunistic composition of the...

Hábitos alimentarios del Coyote en el parque nacional Pico de Orizaba

We examined the food habits of coyotes (Canis latrans) from the Pico de Orizaba National Park by analyzing 136 scat samples that were collected for 11 months in a 7 km transect. Coyote diet consisted mainly of mammals (48.96%), plants (20.28%), birds (6.76%) and insects (0.68%). Our results indicate that annual coyote diet consisted of 15 prey-species. Their diet is based mainly...

El tapir Tapirus bairdii en la región sureste del Área de Protección de Flora y Fauna Bala'an Ka'ax, Quintana Roo, México

We estimated the abundance of Baird's tapir with 1.01 tracks/km and six photographic records/23 days trap, and its presence in the Protected Area of Flora and Fauna Bala'an Ka'ax (APFFBK), Quintana Roo was confirmed. Based on the local view of the residents, it was determined that the main threat of the tapir is the deforestation and that the most common plant species in its diet...

Interspecific variability in the abundance of small rodents in the highlands of Chiapas, Mexico

We provide data on small rodent species abundances and community composition over a one year period at four locations comprising two contrasting habitats, agricultural areas (corn fields) and ecological reserves, in the Municipality of San Cristóbal de Las Casas, Chiapas. 469 captures of nine species of murid rodents were recorded in total, the most abundant of which included...

Seroprevalencia de Leptospira interrogans, hematología y perfil bioquímico en cánidos silvestres del Parque Nacional El Cimatario, Querétaro. México

Leptospira interrogans is common in wild canids but unknown its effect is in Mexican wild canid populations. This study was realized in a sample of gray foxes (Urocyon cinereoargenteus Schreber, 1775) and coyotes (Canis latrans Say, 1823) in El Cimatario National Park, in Querétaro, a fragment of tropical deciduos forest in the highlands of Central Mexico. A total of 17 wild...

Ocelot (Leopardus pardalis) distribution in the state of Puebla, Central Mexico

Despite the fact that Puebla is in central Mexico and close to Mexico City, little is known about the felid species that inhabit the state. As part of our studies about the jaguar in Puebla, we are determining the distribution of ocelot (Leopardus pardalis) along the state. We conducted surveys among communities and placed camera traps in the field. We got ten reports of the...

Estudio mastofaunístico del Parque Nacional Malinche, Tlaxcala, México

An inventory of wild mammals that inhabit the Malinche National Park was done through captures and records of traces. The distribution for each species along the Malinche Volcano was determined within four vegetation types: crops (15 species), pine forest (27 species), pine-alder-fir forest (19 species), and mountain grassland (four species). During 2007 and 2008, a total of 27...

El siguiente reto: la conservación fuera de las áreas protegidas

Carta al editor El siguiente reto: la conservación fuera de las áreas protegidas En la actualidad existe una justificada preocupación por la pérdida de la biodiversidad a nivel mundial, no estando México exento de formar parte de esta crisis de extinción de especies. Ante este problema los gobiernos han establecido diversas estrategias, destacando el establecimiento de áreas...

Nuevo registro del Ocelote (Leopardus pardalis) para el estado de Puebla

In this study, we confirmed the presence of the ocelot (Leoparudspardalis) for the Sierra Norte of the state of Puebla with camera trapping.Keywords : Camera trapping; Hueytamalco; Ocelot; Puebla; Sierra Norte.

Pup Growth of the Guadalupe fur seal, Arctocephalus townsendi.

Pups of the Guadalupe fur seal were captured, marked with hair bleach, measured and weighed between two and four times during their first year of life, during three consecutive years (1991, 1992 and 1993) conforming a sample of 132 pups of both sexes. The following parameters were measured: standard length, body mass, and axilar girth, these were measured in the first hours to...

Áreas de actividad de la ardilla endémica de Perote Xerospermophilus perotensis

The home ranges of 24 squirrels (Xerospermophilus perotensis) were analyzed and compared in three sampling sites with different degree of ground use in Valle de Perote, Veracruz, México. We found that the largest areas corresponded to the sites with natural vegetation by using the mark-recapture method and calculating the home ranges with minimum convex polygons, In contrast, the...