Results 181 to 190 of about 21,430 (211)
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Andean bear home ranges in the Intag region, Ecuador
Ursus, 2011Abstract I estimated home ranges of 5 female and 4 male Andean bears (Tremarctos ornatus) inhabiting the Intag region in Ecuador between September 2001 and December 2006, using 1,439 and 412 telemetry locations for females and males, respectively. Multi-annual and seasonal home ranges were estimated using 2 methods: minimum convex polygon (MCP) and ...
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Mitochondrial DNA Part A, 2020
One of the top carnivores in the Andean mountains is the Andean bear (Tremarctos ornatus, Ursidae), the only bear in South America. This is a flagship and key umbrella species in Ecuador because its conservation has a positive impact on the conservation of many other species in the Andes. But to preserve, first one must know the genetic characteristics
Manuel, Ruiz-García +3 more
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One of the top carnivores in the Andean mountains is the Andean bear (Tremarctos ornatus, Ursidae), the only bear in South America. This is a flagship and key umbrella species in Ecuador because its conservation has a positive impact on the conservation of many other species in the Andes. But to preserve, first one must know the genetic characteristics
Manuel, Ruiz-García +3 more
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Andean bear management needs and interactions with humans in Colombia
Ursus, 2005Abstract Andean bears (Tremarctos ornatus) in Colombia face serious threats, including hunting, habitat loss, and bear–human interactions. Interactions are increasing, but data about these encounters are not consistently compiled. Likewise, bear management needs have not been evaluated.
Jeffrey P. Jorgenson, Sergio Sandoval-A
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Mitochondrial DNA reveals low genetic diversity in Ecuadorian Andean bears
Ursus, 2018Few studies have analyzed the genetics of Andean bear (Tremarctos ornatus) populations through the use of the hypervariable D-Loop mitochondrial region. This approach can be useful for the assessment of genetic diversity and ancestral lineages. In the present study we evaluate the genetic status of an Andean bear population in northern Ecuador using D ...
Darío F. Cueva +4 more
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Rub-tree selection by Andean bears in the Peruvian dry forest
Ursus, 2018To advance our knowledge on the rubbing behavior of Andean bears (Tremarctos ornatus), we assessed characteristics of their rub-trees in the Peruvian tropical dry forest, where water is a rare and critical resource. We registered characteristics of rubbed and unrubbed trees and shrubs along bear trails in an area of approximately 100 km2 surrounding 7 ...
Jack D. Kleiner +3 more
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A preliminary density estimate for Andean bear using camera-trapping methods
Ursus, 2007Abstract Andean (spectacled) bears (Tremarctos ornatus) are threatened across most of their range in the Andes. To date no field-based density estimations are available for this species. We present a preliminary estimate of the density of this species in the Greater Madidi Landscape using standard camera-trapping methods and capture–recapture analysis.
Boris Ríos-Uzeda +2 more
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Mysterious Ucumari: The Andean Bear in Nature and Culture
2016The only ursid native to South America, the spectacled bear (Tremarctos ornatus) still occurs in parts of the Urubamba Valley and its tributaries where human impact has been low. Small size (90–150 kg), distinctive facial markings, and a strong tree-climbing habit set this species, called ucumari in Quechua, apart from bears elsewhere in the world ...
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Selective foraging on bromeliads by Andean bears in the Ecuadorian páramo
Ursus, 2014Abstract The Andean bear (Tremarctos ornatus), the only extant ursid in South America, lives in paramo and montane forest ecosystems and is classified as vulnerable on the International Union for Conservation of Nature Red List (Goldstein et al. 2008).
Stephanie M. DeMay +3 more
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Andean bear gastrointestinal parasites in Chingaza Massif, Colombia
Ursus, 2023Laura R. Quintero +5 more
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Andean bear Tremarctos ornatus natural history and conservation
Mammal Review, 2012ABSTRACT A wealth of information has been generated for the Andean bear Tremarctos ornatus during the past four decades, and a thorough review of the species' natural history, ecology and conservation is provided here. The Andean bear is the only remaining bear species in South America.
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