Results 51 to 60 of about 2,172 (199)
Bosques: Recursos y Manejo Sustentable [PDF]
, 2017 La primera parte del curso presenta conceptos técnicos sobre los bosques, su distribución y ecología. La unidad de estudio incluye los bosques Andinos y de las estribaciones occidentales y orientales.
Sabogal, Ana
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REPORTE ULTRASONOGRÁFICO POSTMORTEM DE ÓRGANOS ABDOMINALES DEL OSO DE ANTEOJOS (Tremarctos ornatus).
Revista de Investigaciones Veterinarias del Perú, 2012 Se realizo el estudio ultrasonografico postmortem de los organos abdominales de un oso de anteojos, Tremarctos ornatos, de 28 anos de edad y 38 kg p.v., criado en cautiverio. El higado presento parenquima homogeneo, hipoecogenico, con seis lobulos, donde el lobulo caudado se extendio hasta el ultimo intercostal derecho y el lobulo medial izquierdo ...
Cahua U, Jacqueline, Sato S, Alberto
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ESTUDIO PRELIMINAR DE COLECCIÓN DE SEMEN EN OSO DE ANTEOJOS (Tremarctos ornatus)
Revista de Investigaciones Veterinarias del Perú, 2012 Semen was collected in a Spectacled Bear (Tremarctos ornatus) reared in captivity using the electroejaculation technique. Four series of 6 volt discharges by 15 seconds each plus manual stimulation were carried out. An effective penis erection and small volume of ejaculate was obtained in the last series of electrical stimulus. Seminal motility was 50%.
Enciso H, Marco +4 more
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Dietary ecology of the extinct cave bear: Evidence of omnivory as inferred from dental microwear textures [PDF]
Acta Palaeontologica Polonica, 2016 The diet of the extinct European cave bear, Ursus spelaeus, has widely been debated. Diverging from the extant brown bear (Ursus arctos) approximately 1.2 million years ago, the cave bear is one of the most ubiquitous fossil bears occurring in Europe ...
D. Brent Jones, Larisa R.G. DeSantis
doaj +1 more source
Estudio químico y parasitológico de muestras fecales del oso Andino (Tremarctos ornatus) provenientes de 2 reservas ecológicas, 2 zoológicos y un centro de rescate en el Ecuador [PDF]
, 2014 The Andean Bear (Tremarctos ornatus), is the only one amongst its species found in South America, and currently listed as an endangered species. Studies have been conducted, however, very little is known about this species.
Luzuriaga Espinosa, María Gabriela
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Morfología cráneo−mandibular del oso andino Tremarctos ornatus (Carnivora: Ursidae)
Therya, 2013 We described and illustrated the skull and jaw of the andean bear Tremarctos ornatus , comparatively analyzing among individuals of different ages and sexes, and adults of other species of Ursidae. In ontogenetic level, we found the following morphological changes associated with senescence: obliteration of the sutures, crests development, widening
Marcelo Stucchi, Judith Figueroa
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PLoS ONE, 2013 Dramatic environmental changes associated with global cooling since the late Miocene, and the onset of glacial-interglacial cycles in the Pleistocene served as a backdrop to the evolutionary radiation of modern bears (family Ursidae). These environmental
Shelly L Donohue +3 more
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Global Ecology and Conservation, 2022 Human encroachment into wildlife habitat threatens the persistence of large carnivore populations because it shrinks their distribution and promotes conflicts related to agricultural and livestock damage.
Roxana Rojas-VeraPinto +2 more
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Data access, distribution models, and stable isotopes: Merging approaches to improve bear distribution estimates and bear carnivory for conservation [PDF]
, 2021 My dissertation aims to contribute to the knowledge of Andean bears in Peru. The Andean bear (Tremarctos ornatus) is the sole bear species in south America.
Falconi, Nereyda
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Exploring dietary adaptations in Ursus minimus: a 3D geometric morphometric analysis of the mandible
Boreas, Volume 55, Issue 2, Page 443-453, April 2026.Using 3D geometric morphometrics, the dietary adaptations of the extinct Auvergne bear (Ursus minimus) are analysed. Its mandibular morphology aligns more closely with omnivorous rather than insectivorous bears, challenging current ideas. The extinct bear Ursus minimus, which lived in Europe during the Pliocene and possibly Early Pleistocene, is ...
Anneke H. van Heteren
wiley +1 more source