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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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Diet of Andean bears in Tamá National Natural Park, Colombia
Ursus, 2020Diet is among the most important and basic ecological aspects of a species. Information on diet composition, seasonality, and spatial variation is necessary for adequate ecological understanding and therefore conservation. Andean bears (Tremarctos ornatus) have been poorly studied across their distribution, and especially in Colombia; therefore, most ...
Cáceres Martínez, CH. +3 more
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Genetic evidence confirms presence of Andean bears in Argentina
Ursus, 2014Abstract The Andean bear (Tremarctos ornatus) is found throughout the Andes Mountains from Venezuela to Bolivia. However, little is known about its distribution and range in southern areas, including Argentina. Our objective was to develop a genetic marker to identify this species by analysis of non-invasive samples (i.e., hair or feces). We designed a
Mariana Cosse +3 more
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Marking behavior of Andean bears in an Ecuadorian cloud forest: a pilot study
Ursus, 2017Very little is known about marking behavior of the endangered Andean bear (Tremarctos ornatus). Here, we present a first detailed description of Andean bear marking behavior obtained using camera traps. From November 2012 to April 2013, we inspected 16 bear trails in the Napo province of eastern Ecuador, and installed camera traps (n = 3) at marking ...
Filipczyková, Eva +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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Shared spaces: The influence of cattle on Andean bear occurrence
Livestock expansion frequently intensifies interactions between domestic animals and large carnivores, often resulting in conflict. The Andean bear (Tremarctos ornatus) is frequently associated with cattle conflict despite its predominantly herbivorous diet.Carmen Julia Quiroga-Pacheco +2 more
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Andean bear density and abundance estimates — How reliable and useful are they?
Ursus, 2011Abstract Few attempts have been made to estimate numbers and densities of Andean bears (Tremarctos ornatus). It is understandable that the many challenges involved in these efforts have made it difficult to produce rigorous estimates. A crude estimate of ∼20,000 Andean bears was derived by extrapolating the lowest observed density of American black ...
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Oso, Osito ¿A Qué Venís? Andean Bear Conflict, Conservation, and Campesinos in the Colombian Páramos
Sustainability, 2021Hanne Cottyn +2 more
exaly