Results 51 to 60 of about 342 (141)

Molecular population genetic analysis of the spectacled bear (Tremarctos ornatus) in the northern Andean area [PDF]

open access: yesHereditas, 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.
openaire   +2 more sources

Spectacled Bear Optimization Algorithm

open access: yes
Swarm intelligence optimization algorithms are widely used in engineering optimization, machine learning, and data mining due to their lack of gradient information requirements and good adaptability to complex non-convex problems. However, most existing swarm intelligence algorithms still rely mainly on simple random perturbations and historical ...
openaire   +2 more sources

Hábitos alimentarios del Puma concolor (Carnivora: Felidae) en el Parque Nacional Natural Puracé, Colombia

open access: yesRevista de Biología Tropical, 2011
La dieta de Puma concolor es ampliamente conocida a lo largo de su distribución, sin embargo, en Colombia no se ha realizado ningún estudio sobre sus hábitos alimentarios.
Andrés Hernández-Guzmán   +2 more
doaj  

A spectacle of the Roman amphitheatre at Viminacium: multiproxy analysis of a brown bear skull

open access: yesAntiquity
Roman amphitheatres were centres of public entertainment, hosting various spectacles that often included wild animals. Excavation of a building near the Viminacium amphitheatre in Serbia in 2016 uncovered the fragmentary cranium of a bear. Multistranded analysis, presented here, reveals that the six-year-old male brown bear (
Nemanja Marković   +4 more
openaire   +3 more sources

Uncovering the enigmatic evolution of bears in greater depth: The hybrid origin of the Asiatic black bear. [PDF]

open access: yesProc Natl Acad Sci U S A, 2022
Zou T   +7 more
europepmc   +1 more source

Ultrasonographic characterization of of the abdominal and pelvic organs of the spectacled bear (Tremarctos ornatus) in captivity

open access: yesRevista de Investigaciones Veterinarias del Perú, 2021
The aim of this study was to characterize ultrasound images of the abdominal and pelvic organs of the spectacled bear (Tremarctos ornatus) in captivity. Eight adult specimens (3 males and 2 females) from the Patronato del Parque de las Leyendas zoo (Lima, Peru) and two males from the Mundo Natural Rescue Center (Tingo María, Peru) were evaluated.
Talavera C., Camila   +3 more
openaire   +1 more source

Molecular sexing from stools in spectacled bear (Tremarctos ornatus)

open access: yes, 2016
El oso de anteojos (Tremarctos ornatus) se encuentra vulnerable debido a la caza y destrucción de su medio ambiente y es de difícil observación en vida libre, lo que obstaculiza su manejo e investigación, por lo que el uso de muestras no invasivas como heces se convierte en una gran herramienta.
Caselli S., Caselli S.   +1 more
openaire   +1 more source

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