Results 11 to 20 of about 319,757 (184)
Ancient genomes reveal hybridisation between extinct short-faced bears and the extant spectacled bear (Tremarctos ornatus) [PDF]
SSRN Electronic Journal, 2021 SummaryTwo genera and multiple species of short-faced bear from the Americas went extinct during or toward the end of the Pleistocene, and all belonged to the endemic New World subfamily Tremarctinae [1-7]. Two of these species were giants, growing in excess of 1,000 kg [6, 8, 9], but it remains uncertain how these extinct bears were related to the ...
Alexander T Salis +9 more
semanticscholar +3 more sources
Anesthetic protocol using propofol and isoflurane in spectacled bear (Tremarctos ornatus)
Brazilian Journal of Veterinary Research and Animal Science, 2023 The management of wild animals generally requires chemical containment with the use of sedatives, tranquilizers, general anesthetics or dissociative drugs. The spectacled bear (Tremarctos ornatus) is the only member of the family Ursidae characteristic of South America. There are few reports on the main anesthetic protocols used in this specie. The aim
Júlio Rodrigues Pereira Júnior +5 more
openaire +2 more sources
Revista Peruana de Biología, 2016 There have been numerous studies about Spectacled bear´s diet, however little is known about the small vertebrates it consumes. This study present nine vertebrate species (seven rodent and two birds) as preys of the Spectacled bear, based on the analysis
Fiorella N. Gonzales +3 more
doaj +2 more sources
Microsatellite Analysis of the Spectacled Bear (Tremarctos ornatus) Across its Range Distribution
Genes & Genetic Systems, 2005 DNA samples of the spectacled bear (Tremarctos ornatus) from five Andean countries, Venezuela, Colombia, Ecuador, Peru and Bolivia, were analyzed for nine microsatellite loci. Seven of them were polymorphic, which led us to investigate several population-genetic parameters.
Manuel, Ruiz-García +3 more
openaire +4 more sources
Range fragmentation in the spectacled bear Tremarctos ornatus in the northern Andes [PDF]
Oryx, 2004 This paper addresses the conservation status of the spectacled bear Tremarctos ornatus in the northern Andes (Venezuela, Colombia and Ecuador) by analysing the degree of range fragmentation and estimating habitat availability. From satellite images we constructed maps of remnant habitat blocks, consisting of Andean forest and páramo (high elevation ...
Gustavo Kattan +7 more
openaire +2 more sources
Molecular population genetic analysis of the spectacled bear (Tremarctos ornatus) in the northern Andean area [PDF]
Hereditas, 2003 Eighty-two Andean bear samples obtained in three South American Andean countries were analyzed using five hypervariable microsatellite markers. Neither the overall sample nor the samples coming from each of the countries analyzed were in Hardy-Weinberg equilibrium.
M. Ruiz‐García
openaire +3 more sources
A 6,000+ year-old specimen of a spectacled bear from an Andean cave in Peru
Ursus, 2009 We report the discovery of a partial skeleton of the oldest spectacled bear (Tremarctos ornatus) known to date. It was found at 2,950 m elevation in the Chaquil cave, in the Departamento de Amazonas, north central Peru. Its age, as determined by accelerated mass spectrometry con- ventional radiocarbon dating, was, within 50 years, 5,980 years before ...
Stucchi, M. +4 more
openaire +3 more sources
Freedom for Chucho. The Andean Bear (Spectacled Bear)
Derecho Animal. Forum of Animal Law Studies, 2018 Javier Ernesto Baquero Riveros
openaire +3 more sources
Global Ecology and Conservation, 2021 Global declines in large-bodied terrestrial vertebrates are widely linked to human disturbance and habitat loss. Identifying remaining opportunities to conserve areas wherein such species may persist or might be reintroduced has thus become a key ...
N. Morrell, R.D. Appleton, P. Arcese
doaj +1 more source