News tagged with shrubs
Disappearance of New Zealand birds 100 years ago makes life tough for plants: study
(PhysOrg.com) -- A team of scientists in New Zealand has found the local disappearance of pollinating birds over a hundred years ago is having a detrimental effect on the species they pollinated.
Feb 07, 2011 |
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Mesquite trees displacing Southwestern grasslands
As the desert Southwest becomes hotter and drier, semi-arid grasslands are slowly being replaced by a landscape dominated by mesquite trees, such as Prosopis velutina, and other woody shrubs, a team of University ...
Mar 18, 2012 |
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Reforestation efforts reshape Hawaii's soil hydrology
Starting with the arrival of Polynesian settlers in the fourth century, and peaking in the mid-1800s, the destructive forces of wildfires and pests and the grazing of feral pigs, goats, and cattle reduced the native forests ...
Mar 31, 2012 |
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Scientists develop new DNA technique to aid crops and trees at risk from deadly 'honey fungus'
(PhysOrg.com) -- An international team of scientists has developed a new technique to aid crops at risk from a devastating agricultural parasite commonly known as the 'honey fungus', one of the most serious ...
Nov 25, 2010 |
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Alaskan lake bed cores show expanding Arctic shrubs may slow erosion
The relationship between permafrost, Arctic vegetation, soil erosion, and changing air temperatures is complicated at best. For instance, rising temperatures melt surface permafrost layers and increase shrub growth. These ...
Space & Earth / Earth Sciences
Dec 31, 2011 |
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Greater Yellowstone elk suffer worse nutrition and lower birth rates due to wolves
(PhysOrg.com) -- Wolves have caused elk in the Greater Yellowstone Ecosystem to change their behavior and foraging habits so much so that herds are having fewer calves, mainly due to changes in their nutrition, ...
Jul 15, 2009 |
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Mangroves Save Lives In Storms
(PhysOrg.com) -- A new study of storm-related deaths from a super cyclone that hit the eastern coast of India in 1999 finds that villages shielded from the storm surge by mangrove forests experienced significantly ...
Apr 14, 2009 |
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Shrub reveals the secrets of climate change
(PhysOrg.com) -- In an Australian first, scientists from The Australian National University and the NSW Office of Environment and Heritage have uncovered a new way of identifying 300 years of climatic changes ...
Space & Earth / Earth Sciences
Sep 08, 2011 |
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Not just 'woody weeds' - spreading shrubs have silver lining
The global spread of native trees and shrubs into open grazing land and abandoned farms can bring unexpected environmental and economic benefits, a major new international study has found.
Jun 01, 2011 |
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Developing alternatives to invasive shrubs
(PhysOrg.com) -- Connecticut's largest group of ornamental plant growers recently took a big step towards curtailing the spread of invasive plants in the state. In June, the Connecticut Nursery and Landscape ...
Sep 08, 2010 |
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Hydrogels help grasses grow on remote, arid rangelands
(PhysOrg.com) -- The arid conditions in the southwestern United States make restoring degraded rangelands extremely difficult, but a U.S. Department of Agriculture (USDA) scientist has found a way to help ...
Jan 12, 2012 |
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Teaching skills key to selection of a successful model farmer
Farmer trainers should be selected based on their interest and ability to teach others rather than on their successes in implementing farming techniques, shows a new study led by Steve Franzel, a scientist at the World Agroforestry ...
Nov 15, 2011 |
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Decreasing deer damage
The nontimber forest products industry has been growing rapidly since the mid-1980s, contributing billions of dollars to the U.S. economy annually. Examples of nontimber forest products (NTFP) include edibles such as fruits ...
May 04, 2009 |
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Coffee cultivation good for diversity in agrarian settlements but not in forests
Coffee shrubs, both in themselves and because they are most often cultivated in the shade of large trees, can have a positive impact on plant and animal diversity in those parts of the landscape that are deforested and dominated ...
Biology /
Feb 19, 2009 |
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