Results 161 to 170 of about 61,718 (201)

Common ravens raid arctic fox food caches

Journal of Ethology, 2006
Cache recovery is critical for evolution of hoarding behaviour, because the energy invested in caching may be lost if consumers other than the hoarders benefit from the cached food. By raiding food caches, animals may exploit the caching habits of others, that should respond by actively defending their caches.
Vincent Careau, Nicolas Lecomte, Jean-François Giroux, Dominique Berteaux   +3 more
openaire   +1 more source

Foraging Patterns of Arctic Foxes at a Large Arctic Goose Colony

ARCTIC, 2000
Arctic foxes ( Alopex lagopus ) are the main predators of many arctic-nesting birds, and such predation can have a large impact on the nesting performance of geese in some years and in some parts of the Arctic. We examined foraging patterns of arctic foxes at a large lesser snow goose ( Chen caerulescens caerulescens ) colony on Banks Island, Canada ...
Gustaf Samelius, Ray T. Alisauskas
openaire   +1 more source

SOCIAL ORGANIZATION AND PARENTAL BEHAVIOR IN THE ARCTIC FOX

Journal of Mammalogy, 2000
Abstract We studied social organization and behavior of arctic foxes (Alopex lagopus) in 3 adjacent territories from 1988 to 1995 in central Norway, where the major rodent prey were cyclic. Twenty-five foxes were equipped with radiotransmitters and several other individuals could be recognized visually. Paired adult foxes and their cubs had home ranges
O. Strand, A. Landa, J. D. C. Linnell, B. Zimmermann, T. Skogland   +4 more
openaire   +1 more source

Toxocara canis in experimentally infected silver and arctic foxes

Parasitology Research, 2005
In two experiments, thirty-six farm foxes of two species were inoculated with various doses of infective Toxocara canis eggs or tissue larvae isolated from mice. In experiment I, six adult arctic foxes (Alopex lagopus; 11-month old) were each inoculated with 20,000 eggs and sacrificed 100, 220, or 300 days post infection (dpi), while ten silver fox ...
Isam, Saeed, Kensuke, Taira, Christian M O, Kapel   +2 more
openaire   +2 more sources

PARASITES OF THE ARCTIC FOX (ALOPEX LAGOPUS) IN ICELAND

Journal of Wildlife Diseases, 1993
Forty-four of 50 arctic foxes (Alopex lagopus) in Iceland harbored 15 species of intestinal parasites, including Protozoa: Eimeria sp. or Isospora sp. (in 4%); Trematoda: Cryptocotyle lingua (24%), Plagiorchis elegans (4%), Brachylaemus sp. (12%), Tristriata sp. (10%), and Spelotrema sp.
K, Skírnisson, M, Eydal, E, Gunnarsson, P, Hersteinsson   +3 more
openaire   +2 more sources

Food Habits of Aleutian Island Arctic Foxes

The Murrelet, 1987
The contents of 86 Arctic fox (Alopex lagopus) stomachs from Nizki and Alaid Islands and 193 scats from Kagalaska Island, Aleutian Islands, Alaska, were analyzed and compared. Seabirds, mostly cormorants (Phalacrocorax spp.), were the most common prey items (48.7% frequency) in the Nizki-Alaid samples. Insects (28.2% frequency), sea lion carrion (17.9%)
openaire   +1 more source

RABIES AND THE ARCTIC FOX (VULPES LAGOPUS): A REVIEW

Journal of Wildlife Diseases
The Arctic fox (Vulpes lagopus) is the primary infection reservoir of Arctic rabies, the dynamics of which are poorly understood and subject to significant spatiotemporal variation. Although rabies presence has been documented in the region since the mid-19th century, there is currently no evidence of rabies impacting Arctic fox population size.
Elysé H, Smith, Yannick, Van de Weyer, Stuart, Patterson   +2 more
openaire   +2 more sources

Drivers, dynamics and impacts of changing Arctic coasts

Nature Reviews Earth & Environment, 2022
Anna M Irrgang, Mette Bendixen, Louise Farquharson   +2 more
exaly  

Arctic mercury cycling

Nature Reviews Earth & Environment, 2022
Ashu Dastoor, Johannes Bieser, Jesper H Christensen   +2 more
exaly  

Plastic pollution in the Arctic

Nature Reviews Earth & Environment, 2022
Melanie Bergmann, France Collard, Joan Fabres   +2 more
exaly