Results 61 to 70 of about 15,567 (163)

Excavation of an Arctic Fox, Alopex lagopus, den by a Polar Bear, Ursus maritimus [PDF]

open access: yes, 2004
We observed a Polar Bear (Ursus maritimus) excavating an Arctic Fox (Alopex lagopus) den on 24 June 1998, 3 km inland from the Hudson Bay coast (58°40'N, 93°12'W), near Cape Churchill in Wapusk National Park, Manitoba.
Brook, Ryan K., Richardson, Evan S.
core   +1 more source

Phylogeny Drives Carrion Consumption by Vertebrate Scavengers Towards Distantly Related Species

open access: yesEcology Letters, Volume 29, Issue 9, September 2026.
Carrion is a highly nutritious resource that plays a key role in ecosystem functioning, but may pose pathogen risks, particularly between phylogenetically close carcass‐scavenger pairs. Using camera traps, we assessed how phylogenetic distance influenced scavenging in a Mediterranean wetland.
Tatiana Pessano‐Serrat   +3 more
wiley   +1 more source

(Table 2) Rates of seropositivity for Toxoplasma gondii antibodies in polar bears (Ursus maritimus) by age and geographic area

open access: yes, 2010
(Table 2) Rates of seropositivity for Toxoplasma gondii antibodies in polar bears (Ursus maritimus) by age and geographic ...
Jon Aars (681814)   +9 more
core   +1 more source

Myths, Furphies and Red Herrings Associated With Dingo Ecology and Management

open access: yesEcological Management &Restoration, Volume 27, Issue 3, September 2026.
ABSTRACT Variability in the inferential strength or reliability of different scientific studies creates uncertainty in the status of knowledge on a given subject, giving rise to multiple myths, furphies and red herrings in scientific discourse. This is particularly true in the case of dingo ecology and management in Australia, which exemplifies common ...
Benjamin L. Allen
wiley   +1 more source

First recorded ice entrapment of a beluga whale (Delphinapterus leucas) in east Greenland

open access: yesPolar Research
Beluga whales are rare along the coast of east Greenland and the closest recognized stock occurs around Svalbard. Here we report on an ice entrapment of an adult beluga whale (Delphinapterus leucas) in north-east Greenland.
Kristin L. Laidre   +4 more
doaj   +1 more source

Bacterial diversity in faeces from polar bear (Ursus maritimus) in Arctic Svalbard

open access: yesBMC Microbiology, 2010
Background Polar bears (Ursus maritimus) are major predators in the Arctic marine ecosystem, feeding mainly on seals, and living closely associated with sea ice.
Brusetti Lorenzo   +6 more
doaj   +1 more source

The ecological and behavioral significance of short-term food caching in polar bears (Ursus maritimus)

open access: yesArctic Science, 2020
The paucity of observations of wild polar bears (Ursus maritimus) caching of food (including hoarding, i.e., burying and remaining with a kill for up to a few days) has led to the conclusion that such behavior does not occur or is negligible in this ...
Ian Stirling   +3 more
doaj   +1 more source

Avian influenza overview June–August 2026

open access: yesEFSA Journal, Volume 24, Issue 9, September 2026.
Abstract Between 5 June and 28 August 2026, 110 highly pathogenic avian influenza (HPAI) A(H5N1) virus detections were reported in domestic (7) and wild (103) birds in 12 countries in Europe. The number of detections remained at a seasonal low throughout the summer, continuing the decline observed since spring.
European Food Safety Authority (EFSA)   +16 more
wiley   +1 more source

Demographic buffering in natural populations: A multi‐level perspective

open access: yesJournal of Animal Ecology, Volume 95, Issue 8, Page 1298-1310, August 2026.
We introduce a multi‐level framework that unites stochastic elasticities with nonlinear selection to test demographic buffering. Applying it across mammals reveals a key insight: ecological robustness to variability often decouples from evolutionary constraint, reshaping how we understand resilience under environmental stochasticity.
Gabriel Silva Santos   +4 more
wiley   +1 more source

Virale Entdeckung in Gefangenschaft gehaltener Eisbären (Ursus maritimus)

open access: yes, 2014
In 2010, two co-housed polar bears (Ursus maritimus) in the Wuppertal Zoological Garden exhibited seizures that led to the death of the female polar bear Jerka, 8 days later. The male polar bear Lars, survived after receiving medical treatment. Knut, the
Tsangaras, Kyriakos
core   +1 more source

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