Results 61 to 70 of about 7,420 (240)
Mating strategies of woodland caribou: Rangifer tarandus caribou
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
Ungulate substrate use in fauna passages
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
Predicting energy expenditures for activities of caribou from heart rates
Highly significant ...
Steve G. Fancy, Robert G. White
doaj +1 more source
Population dynamics of wild reindeer (Rangifer tarandus L.) on the Taimyr Peninsula: A simulation model [PDF]
A simulation model, based on original and published data, has been developed to determine the period and amplitude of natural population cycles of wild reindeer on the Taimyr Peninsula and reveal the role of hunting in these cycles.
Kryazhimskiy, F. V. +2 more
core +1 more source
Micro‐habitat selection by boreal woodland caribou improves access to food
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
The Atlantic-Gaspésie caribou (Rangifer tarandus caribou) population is a small isolated relict herd considered endangered according to the Canadian Species at Risk Act (SARA). This population has low recruitment and survival rates but the potential role
Geneviève Turgeon +4 more
doaj +1 more source
I submit herewith the annual reports from the Agricultural and Forestry Experiment Station, School of Natural Resources and Agricultural Sciences, University of Alaska Fairbanks, for the period ending December 31, 2013.
core
Estimating red deer Cervus elaphus population density using drones in a steep and rugged terrain
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
In search of a critical habitat concept for woodland caribou, boreal population
A hierarchical approach to critical habitat identification has been proposed in the draft National Recovery Strategy for the Woodland Caribou (Rangifer tarandus caribou), Boreal Population.
Gerald D. Racey, A. Alan Arsenault
doaj +1 more source
Seasonal changes shape herbivore behaviour by altering forage availability and habitat conditions; however, few studies integrate diet and habitat selection data across temporal scales. This study uses seasonality as a unifying framework to combine fine‐scale GPS‐based habitat selection data with broader‐scale dietary information from stable isotope ...
Tamara A. Hiltunen +4 more
wiley +1 more source

