Results 51 to 60 of about 2,777 (234)

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

Effect of behavioral marginality on survival of an alpine ungulate

open access: yesEcosphere, 2019
Inter‐individual variability in behavior has been studied extensively for a wide range of species. However, few researchers have considered marginality, defined as the degree to which a choice made by an individual is located at the margins of the ...
Frédéric Lesmerises   +2 more
doaj   +1 more source

Wolf predation in the Burwash caribou herd, southwest Yukon

open access: yesRangifer, 1986
The role of wolf predation as a proximate mortality factor influencing caribou herd growth was assessed in the Burwash herd (400 animals) in the southwest Yukon between 1980 - 1982.
David A. Gauthier, John B. Theberge
doaj   +1 more source

Overwinter survival of orphan caribou, Rangifer tarandus, calves

open access: yesThe Canadian field-naturalist, 1991
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Russell, Donald E   +3 more
openaire   +2 more sources

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

The snowpatch as relief habitat for woodland caribou (Rangifer tarandus caribou Gmelin) at Macmillan Pass, N.W.T.

open access: yes, 1986
Masters (M.Sc.) thesis. Woodland caribou (Rangifer tarandus caribou Gmelin) have been observed to congregate on permanent snowpatches during the summer-fly season at Macmillan Pass, NWT.
Ion, Peter Gordon.
core   +1 more source

The intrinsic rate of increase of reindeer and caribou populations in arctic environments

open access: yesRangifer, 1990
The intrinsic rate of increase of an animal population, rm, is specific to the environment in which it is measured. Previous estimates of maximum growth rates for reindeer and caribou Rangifer tarandus populations were based on introductions to islands ...
D. C. Heard
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

Predicting energy expenditures for activities of caribou from heart rates

open access: yesRangifer, 1986
Highly significant ...
Steve G. Fancy, Robert G. White
doaj   +1 more source

Mating strategies of woodland caribou: Rangifer tarandus caribou

open access: yes, 1986
Mating behavior of woodland caribou, Rangifer tarandus caribou, was studied in populations from contrasting environments that were expected to influence reproductive tactics. A small population of caribou on Brunette Island (Newfoundland) lived at high density in mostly open habitat, without predators.
openaire   +2 more sources

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