Results 121 to 130 of about 65,561 (368)
Circadian rhythmicity persists through the Polar night and midnight sun in Svalbard reindeer
Scientific Reports, 2018 Studies of locomotor activity in Svalbard reindeer reported the temporary absence of diel rhythms under Arctic photic conditions. However, using Lomb-Scargle periodogram analyses with high statistical power we found diel or circadian rhythmicity ...
W. Arnold +6 more
semanticscholar +1 more source
Progesterone secretion in reindeer
Rangifer, 1990 centrifuged and the serum fractions were stored at -20° until analyzed. Serum progesterone con centrations were measured by a radioimmunoas say kit (Farmos Diagnostica). For statistical eva luation data were analyzed by the analysis of variance and Student's t-test. All the hinds had very low serum progestero ne levels ( 5 ng/ml) in all the hinds
Eloranta, Eija +3 more
openaire +5 more sources
Wildlife Biology, EarlyView.Chronic wasting disease (CWD) is well known among cervids in North America. Nevertheless, management faced different types and degrees of uncertainty when CWD was first detected in reindeer Rangifer tarandus in Nordfjella, Norway in 2016. We present a timeline of the efforts to control CWD, and identify how the process, measurement, environmental, and ...
Atle Mysterud +3 more
wiley +1 more source
Who framed Roger Reindeer? De-censorship of Facebook posts by snippet classification [PDF]
arXiv, 2018 This paper considers online news censorship and it concentrates on censorship of identities. Obfuscating identities may occur for disparate reasons, from military to judiciary ones. In the majority of cases, this happens to protect individuals from being identified and persecuted by hostile people.
arxiv
Can a snow structure model estimate snow characteristics relevant to reindeer husbandry?
Rangifer, 2014 Snow affects foraging conditions of reindeer e.g. by increasing the energy expenditures for moving and digging work or, in contrast, by making access of arboreal lichen easier.
Sirpa Rasmus +2 more
doaj +1 more source
Wildlife Biology, EarlyView.The existence of bronchopulmonary nematodes in German roe deer Capreolus capreolus is well documented, with two types of lung parasites that have been described previously: Dictyocaulus capreolus and Varestrongylus capreoli. However, little is known about the impact of these parasites on their host animal or which parameters influence outbreak and ...
Tobias Wild +7 more
wiley +1 more source
Arctic, Antarctic, and Alpine Research, 2019 Shrubification of arctic tundra is a well-recognized phenomenon, and it can be particularly rapid in moist habitats. Reindeer grazing can inhibit shrubification, but grazing impacts on mire vegetation have been overlooked.
Tiina H. M. Kolari +4 more
semanticscholar +1 more source
Wildlife Biology, EarlyView.Fires can strongly change the vegetation structure and the availability of resources for wildlife, but fire suppression has long affected the natural role of fire in shaping boreal ecosystems in northern Europe. Recently, wildfires have increased in frequency, possibly due to global warming.
Emelie Fredriksson +2 more
wiley +1 more source
Habituation responses in wild reindeer exposed to recreational activities
Rangifer, 2010 Displacement is the effect most often predicted when recreational activities in wild reindeer (Rangifer tarandus tarandus) areas are discussed. Wild reindeer in Blefjell (225 km2) are exposed to humans more frequently than in Hardangervidda (8200 km2 ...
Eigil Reimers +3 more
doaj +1 more source