News articles tagged with 'predation'
Are wolves saving Yellowstone's aspen trees from elk?
— 2 Sep 2010 16:37 | BiologyPrevious research has claimed that the reintroduction of wolves to Yellowstone National Park in 1995 is helping restore quaking aspen in risky areas where wolves prowl. But apparently…
Researchers use entire islands in the Bahamas to test survival of the fittest
— 11 May 2010 05:51 | BiologyBy using entire islands as experimental laboratories, two Dartmouth biologists have performed one of the largest manipulations of natural selection ever conducted in a wild animal population.…
Greater Yellowstone elk-wolf study shows elk having fewer calves due to changes in nutrition
— 17 Jul 2009 17:50 | EnvironmentWolves have caused elk in the Greater Yellowstone Ecosystem to change their behaviour and foraging habits so much so that herds are having fewer calves, mainly due to changes in their…
Predatory bacterial swarm uses rippling motion to reach prey
— 30 Oct 2008 13:38 | BiologyLike something from a horror movie, the swarm of bacteria ripples purposefully toward their prey, devours it and moves on. Researchers at the University of Iowa are studying this behaviour…
Scientists call for trial of 'hen harrier ceiling'
— 12 Aug 2008 17:51 | EnvironmentAs the grouse shooting season gets under way, two scientists involved in high-profile studies of hen harriers and red grouse at Langholm Moor in Scotland have called for field trials…
River damming leads to dramatic decline in native fish numbers
— 10 Jul 2008 13:49 | EnvironmentDamming of the Colorado River over the last century, alongside introduction of game fish species, has led to an extensive decline in numbers of native fish whilst introduced species…
New Zealand bird outwits alien predators
— 4 Jun 2008 21:34 | BiologyNew research published in this week's PLoS ONE, led by Dr Melanie Massaro and Dr Jim Briskie at the University of Canterbury, which found that the New Zealand bellbird is capable of…
Birdfeeding benefits up in the air
— 4 Apr 2008 11:50 | EnvironmentMillions of people tend bird feeders in their backyards each year, often out of a desire to help the animals. But a new survey of research on the topic finds that feeding may not always…
Sand dollar larvae use cloning to 'make change,' confound predators
— 16 Mar 2008 10:32 | BiologyNature is full of examples of creatures that try to look as big as possible in an effort to scare away potential predators. But to avoid being eaten alive the larvae of sand dollars…
Hareless: Yellowstone's rabbits have vanished
— 15 Feb 2008 19:57 | EnvironmentA new study by the Bronx Zoo-based Wildlife Conservation Society found that jack rabbits living in the Greater Yellowstone Ecosystem have apparently hopped into oblivion. The study,…