Results 61 to 70 of about 332 (169)

The influence of domestic dogs on the spatial and temporal distribution of tayra

open access: yesWildlife Biology, Volume 2025, Issue 2, March 2025.
The domestic dog Canis familiaris is an exotic species known to have impacts on native fauna and it may induce spatial and temporal segregation in other species as a mechanism to reduce agonistic interactions. The tayra Eira barbara, a medium‐sized, widely distributed mustelid, is one of the species that can be affected.
Isabele Aparecida Manzo   +2 more
wiley   +1 more source

Indicios indirectos de la presencia del oso andino (Tremarctos ornatus Cuvier, 1825) en el noroeste de Argentina Indirect evidence on the presence of the Andean bear (Tremarctos ornatus Cuvier, 1825) in northwestern Argentina

open access: yesRevista del Museo Argentino de Ciencias Naturales, 2009
La presencia de osos andinos (Tremarctos ornatus) en Argentina ha sido muy discutida debido a la ausencia de evidencia confirmativa. Muchos expertos en el oso dudan actualmente de su presencia en el país.
J. Fernando Del Moral, Andrés E. Bracho
doaj  

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

A global assessment of large terrestrial carnivore kill rates

open access: yesBiological Reviews, Volume 100, Issue 1, Page 327-350, February 2025.
ABSTRACT Through killing and instilling fear in their prey, large terrestrial carnivores shape the structure and function of ecosystems globally. Most large carnivore species have experienced severe range and population declines due to human activities, and many are now threatened with extinction.
Luke D. Emerson   +7 more
wiley   +1 more source

Análisis genético molecular del Oso Andino ( Tremarctos ornatus ) en el norte de los andes (Venezuela, Colombia, Ecuador): Una visión global

open access: yesActa Biológica Colombiana, 2001
Se analizaron 82 muestras de oso andino (Tremarctos ornatus) procedentes de 3 países latinoamericanos, Venezuela, Colombia y Ecuador, mediante 5 microsatélites hipervariables (G1A, G1D, G10B, G10C y G10X).
M. Ruiz-García
doaj  

Depredación de Nasuella olivacea (Carnivora: Procyonidae) por Tremarctos ornatus (Carnivora: Ursidae) y Canis lupus familiaris (Carnivora: Canidae), en Parque Chingaza, Colombia

open access: yesMammalogy Notes
El Cusumbo de montaña (Nasuella olivacea) es una especie de gran importancia para los ecosistemas andinos, debido a que dispersa semillas y ayuda a controlar poblaciones de invertebrados y pequeños vertebrados. De igual forma, N.
Fredy Yhamit García Pulido   +3 more
doaj   +1 more source

Nuevas evidencias de la presencia del Oso Andino (Tremarctos ornatus) en las Yungas de Puno, el registro más austral de Perú

open access: yesRevista Peruana de Biología, 2011
El oso de anteojos Tremarctos ornatus es el único representante de la familia Ursidae en Suramérica. La población más grande y de distribución continua del oso andino en el Perú, se localiza en la ladera oriental de la cordillera oriental, incluyendo al ...
Gisella Márquez, Víctor Pacheco
doaj   +1 more source

The primitive giant panda Kretzoiarctos beatrix (Carnivora, Ursidae) from the hominid locality of Hammerschmiede: dietary implications

open access: yesPapers in Palaeontology, Volume 10, Issue 5, September/October 2024.
Abstract Extant giant pandas are among the most herbivorous forms of the order Carnivora, feeding mainly on hard plant material. The first steps of their evolutionary lineage are of particular interest for our understanding of the factors that led to this specialized niche.
Nikolaos Kargopoulos   +6 more
wiley   +1 more source

Socioenvironmental conflicts in Peru with the Andean bear species (Tremarctos ornatus): a review

open access: yesSocial Innova Sciences, 2021
The main objective of this article is to provide information on conservation measures for the only South American ursid. Reference is made to the Tremarctos ornatus, commonly called "Andean bear" or "spectacled bear". This species presents innumerable contributions to the ecosystem where it lives, fulfilling an important role in the countries where it ...
Karen Emilia Pillaca Salcedo   +1 more
openaire   +1 more source

Morphological disparity of mammalian limb bones throughout the Cenozoic: the role of biotic and abiotic factors

open access: yesPalaeontology, Volume 67, Issue 4, July/August 2024.
Abstract Mammals exhibit ecology‐related diversity in long bone morphology, revealing an ample spectrum of adaptations both within and between clades. Their occupation of unique ecological niches in postcranial morphology is thought to have occurred at different chronological phases in relation to abiotic factors such as climate and biotic interactions
Carmela Serio   +3 more
wiley   +1 more source

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