Results 161 to 170 of about 65,561 (368)

Denning chronology in an Arctic brown bear population

open access: yesWildlife Biology, EarlyView.
Denning is a critical behavioral adaptation for brown bears Ursus arctos to cope with winter, a period of extended resource scarcity. Bears reduce their body temperature, heart rate, and metabolism during this time to minimize energy expenditures. The Arctic has among the most pronounced and longest period of resource scarcity. Thus, we predicted bears
William Deacy   +5 more
wiley   +1 more source

Interactions between eagles and semidomestic reindeer: lessons learned from field surveys and deterrents [PDF]

open access: yesarXiv
Predation by eagles on semi-domesticated reindeer (Rangifer tarandus) is an emerging human wildlife conflict in Fennoscandia. Both the Golden (Aquila chrysaetos) and the White-tailed eagle (Haliaeetus albicilla) are believed by herders to predate on reindeer, however, there is a considerable knowledge gap regarding extent of predation and scavenging by
arxiv  

Foetal Growth in the Reindeer

open access: yesActa Veterinaria Scandinavica, 1982
In connection with reindeer, slaughter 348 foetuses were collected at different foetal developmental stages and studied together with 20 full-term newborn calves with respect to weight, crown-rump length, metacarpal bone length and appearance of ossification foci. On the basis of these measurements polynomial growth curves were constructed. Weight gain
Mauri Nieminen   +2 more
openaire   +4 more sources

Livestock as insurance and social status. Evidence from reindeer herding in Norway [PDF]

open access: yes
The theory of livestock as a buffer stock predicts that agropastoralists facing substantial risks typically will use liquid assets, such as livestock, for self-insurance to smooth consumption.
Anders Skonhoft, Anne Borge Johannesen
core  

Nesting ecology of an ice‐associated seabird, Kittlitz's murrelet, at the northern edge of its range

open access: yesWildlife Society Bulletin, EarlyView.
We studied the Kittlitz's murrelet, an ice‐associated seabird of conservation concern, at the northern edge of its range. Over a 2‐year period, we estimated nest density and success at 2 sites, captured and telemetered nesting murrelets, and tested the use of a thermal camera to improve nest detection.
Michelle L. Kissling   +9 more
wiley   +1 more source

Large Igneous Province Record Through Time and Implications for Secular Environmental Changes and Geological Time‐Scale Boundaries

open access: yesGeophysical Monograph Series, Page 1-26., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst   +8 more
wiley  

+1 more source

Characterisation of parapoxviruses isolated from Norwegian semi-domesticated reindeer (Rangifer tarandus tarandus)

open access: yesVirology Journal, 2005
Background Two outbreaks of the disease contagious ecthyma were reported in 1999 and 2000 in Norwegian semi-domesticated reindeer (Rangifer tarandus tarandus).
Klein Joern, Tryland Morten
doaj   +1 more source

Infectious keratoconjunctivitis in semi-domesticated Eurasian tundra reindeer (Rangifer tarandus tarandus): microbiological study of clinically affected and unaffected animals with special reference to cervid herpesvirus 2

open access: yesBMC Veterinary Research, 2018
BackgroundInfectious keratoconjunctivitis (IKC) is one of the most common ocular diseases in ruminants worldwide. In addition to keratitis and conjunctivitis, animals with IKC can develop uveitis, corneal ulcer, and in severe cases, blindness.
Javier Sánchez Romano   +6 more
semanticscholar   +1 more source

Radiocesium metabolism in reindeer

open access: yesRangifer, 1990
Abstract: Early in the era of atmospheric nuclear weapon tests, the reindeer was found to be an interesting animal concerning the transfer of environmental radioactive contaminants to man via the production of contaminated reindeer meat. The reason for the high transfer factors for some radionuclides is the feeding habits of the reindeer with a ...
Jones, Bernt-E. V.   +2 more
openaire   +5 more sources

Playing Reindeer Games: Native Alaskans and the Federal Trust Doctrine [PDF]

open access: yes, 1999
The Reindeer Industry Act of 1937 established a de facto Native Alaskan monopoly in the reindeer industry as a means of subsistence that would allow Native Alaskans to remain self-sufficient and continue to practice their traditional customs.
Dillingham, Terese
core  

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