Tag: "land" at biology news
How plants learned to respond to changing environments
...ss growth in response to environmental cues. All land
plants evolved from an aquatic ancestor, and it was after colonisation of the land
that the gibberellin mechanism evolved. The earliest land
plants to evolve were the bryophyte group...
Revolutionary global environment fund announces $50M expansion
...ilippines covering 20 percent of the nations total land
area were declared by presidential order to be critical habitats, with the Department of Environment and Natural Resources directed to promulgate guidelines for their management and protection. The new funding is part of an ambitious fund-raising p...
The new wildlife refuge -- Golf courses?
...nited States, and approximately 70 percent of that land
is not used for playing, said Ray Semlitsch, Curat...anaged green spaces arent surrogates for protected land
and ecosystems, but they can include suitable habitat for species native to the area. Golf courses c...
Satellite survey links tropical park fires with poverty and corruption
... humans are engaged in timber extraction, clearing land
for agriculture or other land-use conversion. The frequency was based on fire detection data from NASAs satellite-based Moderate Resolution Imaging Spectroradiometer (MODIS). The MODIS fire products enable us to monitor global fires and see how fire ...
Loss of hemlocks will affect water dynamics in southern Appalachian forests
...nd soil moisture that will have to be addressed by land
managers. Hemlock woolly adelgids attach themselves to the base of the needles of the eastern hemlock, feeding on carbon fixed by the trees, slowing growth and causing the needles to drop. Needle loss causes the crown of the tree to thin and diebac...
Glimmer of hope for Tahitian tree snails' survival
...pproximately half of the described species in this land
snail family, said Diarmaid Foighil of The Univer...nt to control yet another snail, the giant African land
snail, which was presumably brought to the island as a potential food source. It instead became some...
New approach to pulmonary hypertension shows promise
...ntroller that keeps planes in the air that need to land
or sends them to the wrong destinations and causes them to attack places they shouldn't," explained Michelakis, the Canada Research Chair in Pulmonary Hypertension. Multiple abnormalities have been described in pulmonary hypertension, making the tr...
Satellite images reveal link between urban growth and changing rainfall patterns
...marily it is caused by the conversion of vegetated land
to asphalt, roads and buildings. As a result, the soils have significantly less ability to absorb water, so in the winter months there is less moisture in the atmosphere and therefore a reduction in precipitation. We don't see the same impact in summ...
Military bases can benefit by addressing sprawl issues and biodiversity
The Defense Departments program to provide land
buffers near its bases has been effective in relie...unding and activities should be accelerated before land
development hinders future buffering opportunities, according to a RAND Corporation report issued to...
Desertification: UN experts prescribe global policy overhaul to avoid looming mass migrations
...cerbating competition and conflict over the use of land
and natural resources. Among many recommendation... preserve and enhance the ecosystem services their land
provides to all; Accept the carbon sequestration as a measure for simultaneously combating desertifi...
MIT tool determines landslide risk in tropics
...ating, which they then look at in combination with land
use and population density to determine the overall risk rating. "The system could be applied directly to any country with similar topography, geology and climate, which would be much of Southeast Asia," said Herbert Einstein, a professor in the MI...
University of Arizona launches major scientific research initiative at Biosphere 2
...f Arizona and about one-third of the Earth's total land
area. The Biosphere 2 facility will allow the researchers to control and measure what enters and leaves the huge experimental chamber. A large and sophisticated array of sensors deployed throughout the chamber's atmosphere and the hill slopes will...
The beetle's dilemma
...stout, large-headed carabid beetles that feed upon land
snails. Large-headed beetles can readily crush snail shells with their powerful jaws, but cannot insert their oversized heads into the shells. In contrast, small-headed beetles can insert their heads into the shells for direct predation on snail bodi...
Scientists close in on missing carbon sink
...cience article, "Weak northern and strong tropical land
carbon uptake from vertical profiles of atmospheri... emissions and the atmospheric impacts of clearing land
more than we realized." Capturing vertical movements Most of the computer models produced inco...
Northern forests less effective than tropical forests in reducing global warming
... emissions and the atmospheric impacts of clearing land
more than we realized." Most of the computers models produced incorrect estimates because, in relying on ground-level measurements, they had failed to accurately simulate the movement of carbon dioxide vertically in the atmosphere. The computer m...
Don't overlook urban soil
...y researchers, other factors associated with urban land
transformations have received limited attention. T...isturbed soil profiles. To examine the effects of land
use and cover on soils, researchers from USDA Forest Service and the University of Maryland Baltimor...
Potato wart eyed as risk to potato production
... garden plots and subsistence farming to extensive land
areas economically dependent on commercial production of potatoes for consumption or for potato seed production. "Potato wart is much easier to prevent than it is to control," Franc said. "It is highly critical that we prevent the introduction of t...
Recycling is not enough -- we need to consume less
... instance by returning composted food waste to the land
as fertiliser, rather than losing this valuable resource. ...
The kapok connection -- Study explains rainforest similarities
... widespread extinction by continuing to invade new land
areas through oceanic dispersal."...
Woods Hole Research Center scientists study impacts of industrial logging in Central Africa
...al logging in Central Africa is the most extensive land
use with more than 30 percent of the forest under ...e, including monitoring and modeling links between land
use change, forest productivity, biodiversity, climate, and human health. Before joining the Center,...
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