Results 31 to 40 of about 3,892 (125)

South American giant short-faced bear (Arctotherium angustidens) diet: evidence from pathology, morphology, stable isotopes, and biomechanics [PDF]

open access: yes, 2014
Fil: Soibelzon, Leopoldo Héctor. División Paleontología Vertebrados. Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Grinspan, Gustavo A.. Núcleo de Biomecánica. Espacio Interdisciplinario.
Acosta, Walter G.   +6 more
core   +1 more source

Huéspedes definitivos de Spirometra mansonoides (Cestoda, Diphyllobothriidae) en el Perú

open access: yesRevista Peruana de Biología, 2013
Se realizó un estudio parasitológico en el zoológico Parque de Las Leyendas, Lima, Perú en el año de 1993. Se recolectaron 49 muestras de heces de carnívoros pertenecientes a cinco familias: Canidae, Ursidae, Procyonidae, Mustelidae y Felidae, éstas ...
Manuel Tantaleán, Carmen Michaud
doaj   +1 more source

Primer registro de oso negro americano (Ursus americanus) para el estado de Hidalgo, México

open access: yesRevista Mexicana de Biodiversidad, 2013
Se documenta el primer registro del oso negro americano (Ursus americanus) para el estado de Hidalgo, México, mismo que representa el punto más sureño de la distribución de esta especie. El ejemplar se encontró muerto cerca del poblado El Aguaje de Cerro
Luis Antonio Juárez Casillas   +1 more
doaj   +1 more source

Evaluation of black bear (Ursus americanus) diet and consequences in its conservation in Sierra de Picachos, Nuevo León, Mexico

open access: yesRevista Mexicana de Biodiversidad, 2013
Black bears (Ursus americanus) are considered endangered in Mexico. In northern Mexico, bears are considered responsible for preying on livestock, damaging private property, and crops; therefore they are killed to protect locals’ livelihoods. There is a
Luis Antonio Juárez Casillas   +1 more
doaj   +1 more source

Registros del oso andino Tremarctos ornatus (Carnivora: Ursidae) en el Subandino Sur de Bolivia

open access: yesActa Zoológica Lilloana, 2021
En la presente nota se reportan cuatro registros documentados mediante fotografías de la presencia del oso andino (Tremarctos ornatus) en el Subandino Sur de Bolivia dentro los límites de las Unidades de Conservación del Oso Andino (UCO) Carrasco-Amboró-
Efraín Miguel Peñaranda Barrios   +5 more
doaj   +1 more source

Bears and Humans, a Neanderthal tale. Reconstructing uncommon behaviors from zooarchaeological evidence in Southern Europe [PDF]

open access: yes, 2018
Cave bear (Ursus spelaeus), brown bear (Ursus arctos), and Neanderthals were potential competitors for environmental resources (shelters and food) in Europe.
Benazzi, Stefano   +5 more
core   +2 more sources

Registros de Oso Andino (Tremarctos ornatus, Carnivora: Ursidae) en Zapatoca, Serranía de los Yariguíes, Santander, Colombia

open access: yesMammalogy Notes, 2019
El Oso Andino (Tremarctos ornatus) es la única especie de la familia Ursidae que existe en Suramérica. La especie es de tamaño mediano y su peso varía entre 70 y 195 kg, siendo el macho de 30 a 40% más grande que la hembra (Castellanos 1996, Peyton 1999).
Daniel M. Díaz-Rueda   +3 more
doaj   +1 more source

Understanding Species–Habitat Associations: A Case Study with the World’s Bears

open access: yesLand, 2022
Habitat modeling is one of the most common practices in ecology today, aimed at understanding complex associations between species and an array of environmental, bioclimatic, and anthropogenic factors.
David Lance Garshelis
doaj   +1 more source

Tracing the evolutionary history of the morpho‐anatomy of baculum in primates

open access: yesThe Anatomical Record, EarlyView.
Abstract Animal morphology reflects both evolutionary history and present‐day adaptation. Male mammal copulatory structures such as the baculum (penile bone) are ideal for studying these processes because of their complexity and high interspecific variability. In primates, however, research has focused mostly on baculum length.
Federica Spani   +3 more
wiley   +1 more source

Comments on : diet, physiology and ecology of fossil mammals as inferred from stable carbon and nitrogen isotope biogeochemistry: implications for Pleistocene bears [PDF]

open access: yes, 1997
A detailed study of isotopic relationships in European Pleistocene ursid teeth have been presented by Bocherens et al. (1994). We agree with the resu1ts and broad conclusions derived from the stable carbon isotope relationships.
Torres Pérez-Hidalgo, Trinidad José
core   +1 more source

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