Results 61 to 70 of about 2,395 (203)

Epigenetic Clock in Bears: A Simple Cost‐Effective Blood DNA Methylation‐Based Age Estimation Method Applicable to Multiple Bear Species

Ecology and Evolution, Volume 15, Issue 5, May 2025.
Age is an essential factor to understand the life history and demographic parameters of wildlife. In this study, we built a common epigenetic clock model for multiple bear species, including brown, Asian black, polar, sun, and Andean bears. The model will contribute to ecological research, conservation, and management of bear species.
Michito Shimozuru, Shiori Nakamura, Jumpei Yamazaki, Yojiro Yanagawa, Hiroo Tamatani, Misako Kuroe, Koji Yamazaki, Shinsuke Koike, Yusuke Goto, Tomoko Naganuma, Kahoko Tochigi, Akino Inagaki, Naoki Takekoshi, Seungyun Baek, Nobutaka Sato, Yusuke Honda, Toshio Tsubota, Hideyuki Ito   +17 more
wiley   +1 more source

Registros de ocurrencia del oso andino (Tremarctos ornatus Cuvier, 1825) en sus límites de distribución nororiental y austral Occurrence of the Andean bear (Tremarctos ornatus Cuvier, 1825) in its north eastern and southern limit of distribution.

Revista del Museo Argentino de Ciencias Naturales, 2011
El conocimiento de la distribución del oso andino (Tremarctos ornatus), es fundamental para evaluar el estado de conservación de la especie y el desarrollo de medidas de conservación tales como la declaración de nuevas áreas protegidas o la ...
J. Fernando Del Moral Sachetti, Fátima I Lameda Camacaro   +1 more
doaj  

Living high and at risk: predicting Andean bear occurrence and conflicts with humans in southeastern Peru

Global Ecology and Conservation, 2022
Human encroachment into wildlife habitat threatens the persistence of large carnivore populations because it shrinks their distribution and promotes conflicts related to agricultural and livestock damage.
Roxana Rojas-VeraPinto, Carlos Bautista, Nuria Selva   +2 more
doaj   +1 more source

An assessment of the populations of Sylvilagus brasiliensis meridensis in páramos with different vegetation structures in the Northeastern Andes of Ecuador [PDF]

, 2015
A defecation rate is calculated from three captured páramo rabbit Sylvilagus brasiliensis meridensis individuals for the first time in Ecuador. Combining this defecation rate, the pellet count method, and Novaro et al.’s (1992) hare density equation ...
García Mejía, Juanita
core  

ESTUDIO PRELIMINAR DE COLECCIÓN DE SEMEN EN OSO DE ANTEOJOS (Tremarctos ornatus)

Revista de Investigaciones Veterinarias del Perú, 2012
Semen was collected in a Spectacled Bear (Tremarctos ornatus) reared in captivity using the electroejaculation technique. Four series of 6 volt discharges by 15 seconds each plus manual stimulation were carried out. An effective penis erection and small volume of ejaculate was obtained in the last series of electrical stimulus. Seminal motility was 50%.
Enciso H, Marco, Bermúdez L., Lizette, Evangelista V, Shirley, Rojas M., Gianmarco, Huanca L., Wilfredo   +4 more
openaire   +4 more sources

FOGS: A SNPSTR Marker Database to Combat Wildlife Trafficking and a Cell Culture Bank for Ex‐Situ Conservation

Molecular Ecology Resources, Volume 25, Issue 4, May 2025.
ABSTRACT Illegal wildlife trade is a growing problem internationally. Poaching of animals not only leads to the extinction of populations and species but also has serious consequences for ecosystems and economies. This study introduces a molecular marker system that authorities can use to detect and substantiate wildlife trafficking.
Annika Mozer, Camilla Bruno Di‐Nizo, Albia Consul, Bruno Huettel, Richard Jäger, Ayodélé Akintayo, Christoph Erhardt, Lena Fenner, Dominik Fischer, Sophia Forat, France Gimnich, Peter Grobe, Sebastian Martin, Vikram Nathan, Ammar Saeed, Laura von der Mark, Christian Woehle, Klaus Olek, Bernhard Misof, Jonas J. Astrin   +19 more
wiley   +1 more source

Nueva evidencia sobre la relación filogenética entre los osos pleistocenos de América del Sur y del Norte [PDF]

, 2000
Fil: Soibelzon, Leopoldo Héctor. División Paleontología Vertebrados. Facultad de Ciencias Naturales y Museo.
Soibelzon, Leopoldo Héctor
core  

Morfología cráneo−mandibular del oso andino Tremarctos ornatus (Carnivora: Ursidae)

Therya, 2013
We described and illustrated the skull and jaw of the andean bear Tremarctos ornatus , comparatively analyzing among individuals of different ages and sexes, and adults of other species of Ursidae. In ontogenetic level, we found the following morphological changes associated with senescence: obliteration of the sutures, crests development, widening
Marcelo Stucchi, Judith Figueroa
openaire   +1 more source

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

Wildlife 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, Rodolpho Gonçalves da Silva, Rita C. Bianchi   +2 more
wiley   +1 more source

Des plantes tropicales qui forment des mares : les broméliacées-citerne : un écosystème aquatique miniature capital pour la biodiversité [PDF]

, 2011
Les plantes qui présentent des structures anatomiques permettant de retenir de l'eau en permanence sont assez répandues en milieu tropical. Si beaucoup sont maintenant cultivées pour être vendues en jardineries, faisant le bonheur des amateurs, elles ...
Carrias, Jean-François, Corbara, Bruno, Céréghino, Régis, Dejean, Alain, Lehours, Anne-Catherine, Leroy, Céline, Pelozuelo, Laurent   +6 more
core   +1 more source