Animal migration amid shifting patterns of phenology and predation: lessons from a Yellowstone elk herd
نویسندگان
چکیده
منابع مشابه
Animal migration amid shifting patterns of phenology and predation: lessons from a Yellowstone elk herd.
Migration is a striking behavioral strategy by which many animals enhance resource acquisition while reducing predation risk. Historically, the demographic benefits of such movements made migration common, but in many taxa the phenomenon is considered globally threatened. Here we describe a long-term decline in the productivity of elk (Cervus elaphus) that migrate through intact wilderness area...
متن کاملEnvironmental change and the evolution of migration.
Bergerud, A., H. Butler, and D. Miller. 1984. Antipredator tactics of calving caribou: dispersion in mountains. Canadian Journal of Zoology 62:1566–1575. Chapman, B. B., C. Brönmark, J. Å. Nilsson, and L. A. Hansson. 2011. The ecology and evolution of partial migration. Oikos 120:1764–1775. Creel, S., D. Christianson, S. Liley, and J. A. Winnie, Jr. 2007. Predation risk affects reproductive phy...
متن کاملElk migration patterns and human activity influence wolf habitat use in the Greater Yellowstone Ecosystem.
Identifying the ecological dynamics underlying human-wildlife conflicts is important for the management and conservation of wildlife populations. In landscapes still occupied by large carnivores, many ungulate prey species migrate seasonally, yet little empirical research has explored the relationship between carnivore distribution and ungulate migration strategy. In this study, we evaluate the...
متن کاملHuman-induced reversal of fortunes for migratory ungulates?
Animal migrations link different ecosystems, with important consequences for nutrient cycling, trophic webs, and disease transmission over very large scales. Migratory populations usually reach much greater numbers than nonmigratory populations of the same or similar species, and many have substantial economic impacts. Many migratory populations of birds, fishes, reptiles, insects, and mammals ...
متن کاملInfluence of harvest, climate and wolf predation on Yellowstone elk, 1961-2004
In the period following wolf (Canis lupus ) reintroduction to Yellowstone National Park (1995 /2004), the northern Yellowstone elk (Cervus elaphus ) herd declined from /17 000 to /8000 elk (8.1% yr ). The extent to which wolf predation contributed to this decline is not obvious because the influence of other factors (human harvest and lower than average annual rainfall) on elk dynamics has not ...
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ژورنال
عنوان ژورنال: Ecology
سال: 2013
ISSN: 0012-9658
DOI: 10.1890/11-2298.1