Results 51 to 60 of about 7,234 (207)

Tool-use in the brown bear (Ursus arctos) [PDF]

Animal Cognition, 2012
This is the first report of tool-using behaviour in a wild brown bear (Ursus arctos). Whereas the use of tools is comparatively common among primates and has also been documented in several species of birds, fishes and invertebrates, tool-using behaviours have so far been observed in only four species of non-primate mammal. The observation was made and
openaire   +2 more sources

Inferring Brown Bear Hair Snare Interactions by Automatically Detecting Bipedalism on Camera Trap Images Using Pose Estimation and a Multilayer Perceptron

Remote Sensing in Ecology and Conservation, EarlyView.
This study proposes an automated method to infer brown bear hair snare interactions by detecting bipedal behavior in camera‐trap images using a pose estimation model and a multilayer perceptron (MLP). A YOLO‐based model, fine‐tuned from humans and dogs to a custom dataset, achieved high performance (≈93% keypoint precision and ≈96% classification ...
Arnau Campanera‐Moliné, Víctor Sazatornil, Lluís Brotons, Felipe Lumbreras Ruiz, Robert Benavente, Maguiña Ramilo‐Henry, Cristina Ramos, Santiago Palazón, Daniel Ponsa   +8 more
wiley   +1 more source

Feline Panleukopenia Virus in a Marsican Brown Bear and Crested Porcupine, Italy, 2022–2023

Emerging Infectious Diseases
The virus species Protoparvovirus carnivoran 1 encompasses pathogens that infect both domestic and wild carnivores, including feline panleukopenia virus.
Georgia Diakoudi, Gianvito Lanave, Shadia Berjaoui, Costantina Desario, Giovanni Di Teodoro, Violetta Iris Vasinioti, Francesco Pellegrini, Sabrina V.P. Defourny, Stefania Salucci, Antonio Cocco, Alessio Lorusso, Vito Martella, Nicola Decaro   +12 more
doaj   +1 more source

The brown bear (<em>Ursus arctos</em> L.) in Trentino, Italy: geographical distribution and population size during 1987-1991 / L'orso bruno (<em>Ursus arctos</em> L.) nel Trentino: distribuzione geografica e consistenza numerica negli anni 1987-1991

Hystrix, the Italian Journal of Mammalogy, 1993
<strong>Abstract</strong> The present research on alpine Brown bears (<em>Ursus arctos</em> L.), covers a period of five years (1987-1991) of collection of data about the status of this population in Western Trentino ...
Fabio Osti
doaj   +1 more source

Anthropogenic food: an emerging threat to polar bears

Oryx, 2023
Supplemental food from anthropogenic sources is a source of conflict with humans for many wildlife species. Food-seeking behaviours by black bears Ursus americanus and brown bears Ursus arctos can lead to property damage, human injury and mortality of ...
Tom S. Smith, Andrew E. Derocher, Rachel L. Mazur, Geoff York, Megan A. Owen, Martyn Obbard, Evan S. Richardson, Steven C. Amstrup   +7 more
doaj   +1 more source

Modelling the surprising recolonisation of an understudied aquatic mammal in a highly urbanised area: fortune favoured the smooth‐coated otter in Singapore

Wildlife Biology, EarlyView.
Ever‐growing human activities present an active and continuing threat to many species throughout the world. Nevertheless, concerted conservation efforts in some regions have balanced these threats and allowed endangered species to recolonise former parts of their original ranges and reverse their decline.
Kilian Hughes, Justin M. J. Travis, Aurore Ponchon   +2 more
wiley   +1 more source

Restos de oso pardo en estructuras de la Edad del Hierro del yacimiento de Can Roqueta/Can Revella (Vallés Occidental) [PDF]

Munibe Antropologia-Arkeologia, 2008
La excepcional recuperación de tres restos de oso pardo en tres estructuras de la primera Edad del Hierro del yacimiento de Can Roqueta, Sector Can Revella, nos llevó a realizar este trabajo de documentación sobre la evidencia de la captura y ...
Albizuri, Silvia, Maroto, Julià
doaj  

Monitoring GPS‐collared moose by ground versus drone approaches: efficiency and disturbance effects

Wildlife Biology, EarlyView.
Efficient wildlife management requires precise monitoring methods, for example to estimate population density, reproductive success, and survival. Here, we compared the efficiency of drone (equipped with a RGB camera) and ground approaches to detect and observe GPS‐collared female moose Alces alces and their calves. We also quantified how drone (n = 42)
Martin Mayer, Erlend Furuhovde, Kristoffer Nordli, Giorgia Myriam Ausilio, Petter Wabakken, Ane Eriksen, Alina L. Evans, Karen Marie Mathisen, Barbara Zimmermann   +8 more
wiley   +1 more source

Unraveling the impact of dog‐friendly spaces on urban–wildland pumas and other wildlife

Wildlife Biology, EarlyView.
As the most widespread large carnivore on the planet, domestic dogs Canis lupus familiaris can pose a major threat to wildlife, even within protected areas (PAs). Growing human presence in PAs, coupled with increasing pet dog ownership underscores the urgency to understand the influence of dogs on wildlife activity and health.
Alys Granados, Zara McDonald, Katie McPherson, David Stoner   +3 more
wiley   +1 more source

A high‐altitude thermal infrared method for estimating moose abundance and demography in Rocky Mountain National Park, USA

Wildlife Biology, EarlyView.
Resource managers require accurate estimates of large herbivore abundance and demography to maintain ecological integrity. Common methods to count these species, including observations from low altitude helicopter flights, may conflict with other protected area management objectives and struggle to produce precise estimates for more cryptic species. To
Hanem G. Abouelezz, N. Thompson Hobbs
wiley   +1 more source