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 ...
Environment
Mar 31, 2012
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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 of Arizona ...
Ecology
Mar 18, 2012
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(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 native grasses survive ...
Ecology
Jan 12, 2012
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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 ...
Earth Sciences
Dec 31, 2011
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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 ...
Environment
Nov 15, 2011
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(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 in the Australian ...
Earth Sciences
Sep 8, 2011
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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.
Ecology
Jun 1, 2011
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(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.
(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 diseases of trees ...
Cell & Microbiology
Nov 25, 2010
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(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 Association announced ...
Ecology
Sep 8, 2010
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