منابع مشابه
The Wolves of Yellowstone
Perhaps no other large predator is more deeply embedded in our psyche than the wolf. Vilified throughout history in both legend and literature, humans had effectively eradicated wolves from Europe by 1850. In the United States, the government declared a war of extermination against gray wolves (Canis lupus) beginning in the early 1800s. Hunters, ranchers, and farmers eagerly enlisted, using let...
متن کاملWolves at the more
Wolves in America and Europe are facing a change of fortune after centuries of hunting that have seen them become extinct in many areas and reduced to tiny populations elsewhere. But new conservation measures in the US and Europe are having a dramatic impact. Wolves have already recolonised parts of the US Rocky Mountains, and they have been reintroduced successfully to parts of Idaho and Monta...
متن کاملRestoring Yellowstone’s aspen with wolves
Wolves (Canis lupus) were reintroduced to Yellowstone National Park in 1995–1996. We present data on a recent trophic cascade involving wolves, elk (Cervus elaphus), and aspen (Populus tremuloides) in Yellowstone’s northern winter range that documents the first significant growth of aspen in over half a century. Results indicate reduced browsing and increased heights of young aspen during the l...
متن کاملHeterozygosity of the Yellowstone wolves.
IVANA JANKOVIC,* BRIDGETT M. V O N HOLDT† and NOAH A. ROSENBERG*‡ *Center for Computational Medicine and Bioinformatics, University of Michigan, 2017 Palmer Commons, 100 Washtenaw Ave., Ann Arbor, MI 48109, USA, †University of California, Los Angeles, Ecology & Evolutionary Biology, 621 Charles E. Young Dr. South, Los Angeles, CA 90095, USA, ‡Department of Human Genetics and the Life Sciences I...
متن کاملPredatory senescence in ageing wolves.
It is well established that ageing handicaps the ability of prey to escape predators, yet surprisingly little is known about how ageing affects the ability of predators to catch prey. Research into long-lived predators has assumed that adults have uniform impacts on prey regardless of age. Here we use longitudinal data from repeated observations of individually-known wolves (Canis lupus) huntin...
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ژورنال
عنوان ژورنال: The Iowa Review
سال: 1977
ISSN: 0021-065X,2330-0361
DOI: 10.17077/0021-065x.2296