Results 211 to 220 of about 7,420 (240)
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Conservation Genetics, 2002
Over the past centuries the native caribou ofWest Greenland has gone through extensive population size fluctuations, with reductionsas great as 90% in less than 20 years.Norwegian semi-domestic reindeer wereintroduced to the Nuuk area in 1952 because ofthe small number of caribou in Greenland.Although the reindeer and caribou wereinitially kept ...
Jepsen, B.I. +2 more
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Over the past centuries the native caribou ofWest Greenland has gone through extensive population size fluctuations, with reductionsas great as 90% in less than 20 years.Norwegian semi-domestic reindeer wereintroduced to the Nuuk area in 1952 because ofthe small number of caribou in Greenland.Although the reindeer and caribou wereinitially kept ...
Jepsen, B.I. +2 more
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Consequences of travel in the rutting of reindeer and caribou (Rangifer tarandus)
Animal Behaviour, 1970Summary Observations of rutting reindeer indicate that during herding, breeding is greatly intensified and that the general pattern of courtship behaviour exhibited in stationary groups does not occur. This may be explained by concepts which illustrate movement, high density of animals, high excitement and antler contact as possible erotic stimuli ...
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Sarcocystis in caribou (Rangifer tarandus terraenorae) in Newfoundland.
The Southeast Asian journal of tropical medicine and public health, 1992Prevalence of species of Sarcocystis in muscle of 36 caribou, Rangifer tarandus terraenorae, shot in Newfoundland, Canada, was 53%. A greater percentage of infected animals were obtained from the central part of the island. The highest concentration of microscopic sarcocysts, 1/mm2 of tissue, was observed in a 5-year old animal.
R A, Khan, D, Fong
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Canadian Journal of Zoology, 1970
Serum samples from 1692 reindeer slaughtered in the Mackenzie River Delta in the last decade and from 320 Kaminuriak barren-ground caribou killed between June 1966 and July 1968 were tested for brucellosis. All sera yielding titers of 1:25 or higher were considered to be positive.
E, Broughton +3 more
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Serum samples from 1692 reindeer slaughtered in the Mackenzie River Delta in the last decade and from 320 Kaminuriak barren-ground caribou killed between June 1966 and July 1968 were tested for brucellosis. All sera yielding titers of 1:25 or higher were considered to be positive.
E, Broughton +3 more
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Fire, lichens, and woodland caribou (Rangifer tarandus caribou) in Canada's Boreal Shield
2020Threatened woodland caribou (Rangifer tarandus caribou) have experienced large range recessions and population declines across much of Canada’s boreal forest in the last century and have become a major focus of conservation efforts in the region.
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Seasonal movement patterns of woodland caribou (Rangifer tarandus caribou)
Journal of Zoology, 2004AbstractFor species conservation, defining seasons according to an animal's perception and consideration of seasonal differences in its use of space is required. First, a statistical approach was used to determine seasons based on rates of movement of radio‐collared caribou Rangifer tarandus caribou.
S. H. Ferguson, P. C. Elkie
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2020
Seasonality is an important component in shaping the dynamics that influence ecosystems, including mortality. Animals experience temporal variation in vulnerability to mortality due to interactions among environmental conditions, nutritional condition, age and life stages, and changes in their movements and behaviours as well as those of their ...
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Seasonality is an important component in shaping the dynamics that influence ecosystems, including mortality. Animals experience temporal variation in vulnerability to mortality due to interactions among environmental conditions, nutritional condition, age and life stages, and changes in their movements and behaviours as well as those of their ...
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2009
The distribution and abundance of mountain caribou (Rangifer tarandus caribou) in British Columbia has declined. High predation rates as a consequence of forest management and associated changes to the relative abundances of alternate ungulate prey species have been proposed to cause the population declines.
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The distribution and abundance of mountain caribou (Rangifer tarandus caribou) in British Columbia has declined. High predation rates as a consequence of forest management and associated changes to the relative abundances of alternate ungulate prey species have been proposed to cause the population declines.
openaire +1 more source