Population Biology of Snowshoe Hares. II. Interactions with Winter Food Plants
نویسندگان
چکیده
منابع مشابه
Population Biology of Snowshoe Hares. Ii. Interactions with Winter Food Plants
i (1) We investigated interactions between snowshoe hares (Lepus americanus) and their food plants in winter during a cyclic fluctuation in numbers at Kluane, Yukon, between 1977 and 1985. • (2) The winter diet of hares at Kluane was dominated by four species of shrubs and trees. Betula glandulosa, the most preferred species, was common on only four of nine study plots. Salix glauca was eaten m...
متن کاملEffects of geophagy on food intake, body mass, and nutrient dynamics of snowshoe hares (Lepus americanus)
Geophagy is thought to have several physiological benefits to animals, including mineral supplementation and adsorption of toxins. However, these benefits have rarely been demonstrated experimentally. Using soil from a known lick in northern Alaska, we investigated the effect of geophagy on food intake andmass loss in captive snowshoe hares (Lepus americanus Erxleben, 1777) fed a formulated rat...
متن کاملOf lemmings and snowshoe hares: the ecology of northern Canada.
Two population oscillations dominate terrestrial community dynamics in northern Canada. In the boreal forest, the snowshoe hare (Lepus americanus) fluctuates in cycles with an 8-10 year periodicity and in tundra regions lemmings typically fluctuate in cycles with a 3-4 year periodicity. I review 60 years of research that has uncovered many of the causes of these population cycles, outline areas...
متن کاملWhat Drives the 10-year Cycle of Snowshoe Hares?
in northern Ontario wrote to the head office in London. The local Ojibway Indians were starving, he reported, because of a scarcity of “rabbits,” and they were unable to trap for furs because they spent all their time fishing for food (Winterhalder 1980). These shortages of so-called rabbits, which apparently occurred approximately every 10 years, are regularly mentioned in Canadian historical ...
متن کاملWhat Drives the 10-year Cycle of Snowshoe Hares?
in northern Ontario wrote to the head office in London. The local Ojibway Indians were starving, he reported, because of a scarcity of “rabbits,” and they were unable to trap for furs because they spent all their time fishing for food (Winterhalder 1980). These shortages of so-called rabbits, which apparently occurred approximately every 10 years, are regularly mentioned in Canadian historical ...
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ژورنال
عنوان ژورنال: The Journal of Animal Ecology
سال: 1988
ISSN: 0021-8790
DOI: 10.2307/4778