Results 51 to 60 of about 8,354 (232)

A hypothesis to explain lichen-Rangifer dynamic relationships

open access: yes, 1997
A small group of fruticous lichen species, viz. Cetraria nivalis, Cladonia mitis, C. stellaris, and Stereocaulon paschale forms extensive mats in the most winter habitats of Rangifer tarandus populations in Norway.
Eldar Gaare, Gaare, Eldar
core   +1 more source

Lacking data? No worries! How synthetic images can alleviate image scarcity in wildlife surveys: A case study with muskox (Ovibos moschatus)

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
This study investigates the integration of synthetic imagery, created with diffusion‐based models, to supplement limited training data and improve muskox (Ovibos moschatus) detection in zero‐shot (ZS) and few‐shot (FS) settings. ZS models detected more than 80% of muskoxen in real images, confirming the potential of synthetic data as a substitute for ...
Simon Durand   +4 more
wiley   +1 more source

Ungulate substrate use in fauna passages

open access: yesWildlife Biology, EarlyView.
Fauna passages are increasingly constructed at major roads and railways to mitigate the negative effects of infrastructure and traffic on wildlife. The function of such passages depends on design, including the construction materials, soil, and vegetation.
Milla Niemi, Jan Olof Helldin
wiley   +1 more source

Rangifer population ecology: a Scandinavian perspective

open access: yes, 1997
Population ecology is concerned with measuring changes in population size and composition, and identifying the causes of these fluctuations. Important driving variables include animal body size and growth rate, and their relationship to reproduction and ...
Eigil Reimers
core   +1 more source

Population dynamics of the Taimyr reindeer population

open access: yesRangifer, 1996
The Taimyr herd of wild reindeer (Rangifer tarandus tarandus L.) is one of the three largest herds of wild Rangifer in the world, and numbered about 600 000 in 1993.
B.M. Pavlov   +2 more
doaj   +1 more source

Micro‐habitat selection by boreal woodland caribou improves access to food

open access: yesWildlife Biology, EarlyView.
Bio‐logging sensors attached to radiotelemetry receivers have great potential to transform our understanding of the ecological, physiological, and energetic constraints that shape patterns of wildlife movement under field conditions. We used video camera collars to assess microhabitat selectivity by woodland caribou Rangifer tarandus in boreal forests ...
Ian D. Thompson   +8 more
wiley   +1 more source

Reindeer (Rangifer tarandus tarandus) perception of noise from power lines

open access: yes, 2003
There has been concern about possible effects of noise from power lines on reindeer (Rangifer tarandus tarandus) behaviour. Based on recent establishment of the reindeer audiogram and measurements of corona noise from two power lines of 300 kV and 420 kV,
Per S. Enger   +7 more
core   +1 more source

Report: Tamreinen på Grønland

open access: yesRangifer, 1982
Larsen, P. & Aastrup, P. 1981: Undersøgelser over tamrenbestanden (Rangifer tarandus tarandus L.) ved Itivnera, Vestgrønland. - Viltundersøgelser, Hæfte 35. Viltbiologisk Station, Kalø, DK-8410 Rønde.
Sven Skjenneberg
doaj   +1 more source

Estimating red deer Cervus elaphus population density using drones in a steep and rugged terrain

open access: yesWildlife Biology, EarlyView.
Precise and accurate information about population density, crucial for wildlife management, is difficult to obtain for elusive species living in dense forests or steep and inaccessible terrain. Using unmanned aerial vehicles (UAVs), we developed a method for obtaining absolute population estimates of ungulates living in steep, rugged, and partly ...
Julie Bommerlund   +3 more
wiley   +1 more source

Conference report (including non-peer reviewed articles) of the 13th Nordic Conference on Reindeer and Reindeer Husbandry Research, 23-25 August 2004, Røros, Norway.

open access: yesRangifer, 2005
The 13th Nordic Conference on Reindeer and Reindeer Husbandry Research gathered 75 participants representing the sciences, husbandry, management and education. The main topics were South Sami reindeer husbandry, the concession reindeer husbandry in South
Rolf Egil Haugerud (Editor)
doaj   +1 more source

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