Results 21-30 of 98. Search took 0.237112 seconds.
Sharks and wolves: predator, prey interactions similar on land and in ...
Nov 10, 2010 ... In each case, the major predators help control the populations of their prey,
scientists said. But through what's been called the “ecology of fear” they also
affect the behavior of the prey, with ripple impacts on other aspects of the
ecosystem and an ecological significance that goes far beyond these species.
http://oregonstate.edu/ua/ncs/archives/2010/nov/sharks-and-wolves-predator-prey-interactions-similar-land-and-oceans - 40k
Wolves may aid recovery of Canada lynx, a threatened species ...
Aug 30, 2011 ... “Before they were largely extirpated, wolves used to kill coyotes and also disrupt
their behavior through what we call the 'ecology of fear,'” Ripple said. “Coyotes
have a flexible, wide-ranging diet, but they really prefer rabbits and hares, and
they may also be killing lynx directly.” Between the decline of their ...
http://oregonstate.edu/ua/ncs/archives/2011/aug/wolves-may-aid-recovery-canada-lynx-threatened-species - 40k
Predators help shape rivers by affecting grazing behaviors | News ...
Apr 4, 2007 ... OSU researchers William Ripple and Robert Beschta have found evidence, both
historical and contemporary, of significant impact from predation on the width,
depth and meanders of the Gallatin River in Yellowstone National Park. A story
about their research appears in the spring issue of Terra, OSU's ...
http://oregonstate.edu/ua/ncs/archives/2007/apr/predators-help-shape-rivers-affecting-grazing-behaviors - 38k
Cougar Predation Important in Wildland Ecosystems | News and ...
Oct 24, 2006 ... The research was just published in the journal Biological Conservation and – like
recent studies outlining similar ecological ripple effects following the
disappearance of wolves in the American West – may cause land managers to
reconsider the importance of predatory species in how ecosystems function.
http://oregonstate.edu/ua/ncs/archives/2006/oct/cougar-predation-important-wildland-ecosystems - 42k
Loss of predators affecting ecosystem health | News and Research ...
Apr 9, 2012 ... “These issues do not just affect the United States and a few national parks,” said
William Ripple, an OSU professor of forestry and lead author of the study. “The
data from Canada, Alaska, the Yukon, Northern Europe and Asia are all showing
similar results. There's consistent evidence that large predators ...
http://oregonstate.edu/ua/ncs/archives/2012/apr/loss-predators-northern-hemisphere-affecting-ecosystem-health - 41k
OSU selects public health leader, ecologist for Distinguished ...
Feb 27, 2014 ... Sabah Randhawa, OSU provost and executive vice president, said the two
faculty members chosen for the honor share similar traits of innovative leadership
, internationally recognized scholarship and service to the university and their
respective fields. “Marie Harvey and Bill Ripple exemplify what we hope ...
http://oregonstate.edu/ua/ncs/archives/2014/feb/osu-selects-public-health-leader-ecologist-distinguished-professor-awards - 42k
Lewis and Clark notes reveal history of human impacts | News and ...
Nov 19, 2003 ... To help unravel the ecological mysteries of the past, Laliberte and OSU professor
of forest resources William Ripple turned to the journals of Lewis and Clark,
which were written during their historic journey from 1804-06. Thomas Jefferson,
who was a scientist and ecologist in addition to being president, ...
http://oregonstate.edu/ua/ncs/archives/2003/nov/lewis-and-clark-notes-reveal-history-human-impacts - 41k
agriculture and food | News and Research Communications ...
An international team of wildlife ecologists led by William Ripple, Oregon State
University distinguished professor in the College of Forestry, conducted a
comprehensive analysis of data on the world's largest herbivores (more than 100
kilograms, or 220 pounds, on average), including endangerment status, key
threats and ...
http://oregonstate.edu/ua/ncs/categories/agriculture-and-food%3Fpage%3D3 - 71k
Mammoth, saber-tooth cat extinctions linked to predation change ...
Jul 1, 2010 ... “For decades, scientists have been debating the causes of this mass extinction,
and the two theories with the most support are hunting pressures from the arrival
of humans, and climate change,” said William Ripple, a professor of forest
ecosystems and society at Oregon State University, and an expert on ...
http://oregonstate.edu/ua/ncs/archives/2010/jul/%25E2%2580%259Ctrophic-cascades%25E2%2580%259D-disruption-may-include-loss-woolly-mammoth-saber-tooth-cat - 43k
Loss of top predators causing surge in smaller predators, ecosystem ...
Oct 1, 2009 ... “This issue is very complex, and a lot of the consequences are not known,” said
William Ripple, a professor of forest ecosystems and society at Oregon State
University. “But there's evidence that the explosion of mesopredator populations
is very severe and has both ecological and economic repercussions.
http://oregonstate.edu/ua/ncs/archives/2009/oct/loss-top-predators-causing-surge-smaller-predators-ecosystem-collapse - 42k
  Previous   1   2   3   4   5   6   7   8   9   10   Next