Natal Dispersal of Snowshoe Hares during a Cyclic Population Increase
نویسندگان
چکیده
منابع مشابه
Of 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 کاملDemography of snowshoe hares in relation to regional climate variability during a 10-year population cycle in interior Alaska1
We monitored populations of snowshoe hares (Lepus americanus, Erxleben) in interior Alaska for 10 years from 1999 to 2008. During this period, fall densities of hares fluctuated approximately 14-fold. High population growth rates over summer (l = 1.83–8.00) were followed by large population declines over winter (l = 0.16–0.82). Young-of-theyear hares tended to gain mass over winter, while adult...
متن کاملPopulation 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 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: Journal of Mammalogy
سال: 1999
ISSN: 1545-1542,0022-2372
DOI: 10.2307/1383263