Tag: "vegetation" at biology news
Area creek studied for rangeland effects on water quality
...ths at a time. Spring flow has been limited by vegetation
and an increase in theirrigation along the creek, he said. That, coupled with several years ofdrought, have lessened the flow of the stream. Some sites, however, have maintained water year-round and others aregaining water due to recent rains, Si...
Cougar predation key to ecosystem health
...t, floodplains began to erode away. Other types of vegetation
and the animal species dependent on them suffered....urvey of channel dimensions, streambank condition, vegetation
and species presence along each study site. "These two canyons, almost side by side, have a similar ...
Study suggests evolutionary link between diet, brain size in orangutans
...s with reduced energy and protein content, such as vegetation
and bark," they added. In previous studies, reported in the April 2006 issue of the Journal of Human Evolution, Taylor found evidence that orangs living in Borneo's northeast have jaws that are better able to handle tougher varieties of food than or...
Asia's odd-ball antelope gets collared
...lost from North America and Britain as climate and vegetation
shifted. With the collapse of the Soviet Empire, unregulated hunting resulted in the recent startling decrease in saiga numbers. "Although Mongolia faces stiff conservation challenges as it transitions to a free-market economy, the saiga can easily ...
BG Group and Conservation International launch Conservation through Photography Alliance
... km sq. with at least 70 percent of their original vegetation
Hail to the hornworts: New plant family tree sheds light on evolution of life cycles
...nd and then went on to diversify into the array of vegetation
we see today, from simple mosses and liverworts to towering redwoods. A research team led by University of Michigan evolutionary biologist Yin-Long Qiu has new findings that help resolve long-debated questions about the origin and evolution of land...
ESA's microsatellite playing major role in scientific studies
...ss the effects of different land use strategies on vegetation
types in the savannahs in Central Nambia, to evalu...r content, leaf area index and overall biomass and vegetation
health. It is also useful for studying the atmosphere and bodies of water. Mike Barnsley of the Un...
Professor earns carbon sequestration research grant
... investigate the historic carbon balance of Andean vegetation
and soils. Under the first installment of the fun...from lake sediments to reconstruct past changes in vegetation
and determine fire. From these analyses they will evaluate the potential for carbon sequestration in...
Boat paint to blame for Norfolk Broads' desolation
... resulted in a dramatic and sudden loss of aquatic vegetation
from most of the 50 or so Norfolk Broads lakes. At the time, scientists pointed the finger at contamination from sewage works and fertiliser run-off from farmland, despite suggestions from the local community that the burgeoning leisure boating ind...
Symposium 'Environmental Change in Siberia -- Insights From Earth Observation and Modeling'
...phere from a combined satellite remote sensing and vegetation
modeling approach. "The symposium will comprise of 22 talks and 6 poster presentations, and conclude with discussion of the main scientific questions that need addressing and how this international research can be funded in the future in a joined u...
MIT team describes unique cloud forest
...usual forest is an interesting remnant "of a moist vegetation
belt that once spread across the Arabian Peninsula...man is now semi-arid, and most of the ancient tree vegetation
is gone. This small remnant has managed to survive in the Dhofar Mountains. But it is under threat...
Mother deer cannot recognize the calls of their own offspring but sheep and reindeer can
...isms. "Newborn fawns lie concealed and silent in vegetation
away from their mothers to avoid detection by predators, and mothers return intermittently to feed them," write Marco Torriani, Elisabetta Vannoni, and Alan McElligott. "Vocal communication is very important for ungulate hider species because mothers...
Burning wetlands unleash sequestered mercury in wake of climate change
...measured the amount of mercury stored in soils and vegetation
of forests and peat lands, then used historical burn areas and emission models to estimate how much of that mercury is released to the atmosphere at a regional scale during fires. The group has spent more than five years studying prescribed burn...
UAF hosts symposium on human-fire interactions
... Scientists will address effects of climate and vegetation
on fire, effects of fire on rural economies and subsistence resources, costs associated with fire suppression, changing roles of fire policy and fire management, and opportunities created by the increasing risk of wildland fires. "The fire manageme...
USGS Science at Ecological Society of America
...rk established to assess climate change impacts on vegetation
in alpine environments worldwide. A standard proto...th America. The authors have established intensive vegetation
plots that will be monitored every five years. Species composition and percent cover were recorded, ...
NASA assists search for woodpecker thought to be extinct
...imension, enabling us to better assess the complex vegetation
structure the plane flies over." The flights are t...LVIS-plotted features like thickness of the ground vegetation
and tree-leaf density, in combination with other factors like closeness to water and age of the fore...
Debate continues on post-wildfire logging, forest regeneration
...he scientists said in their commentary. "Competing vegetation
can develop rapidly after a disturbance in this region, and can dramatically affect small conifer seedling survival and growth." Other points made in their paper included: Regeneration damage when prompt salvage is delayed was reported by others ov...
African water authorities receive space tool training
...ofile waves and ice, monitor land use and types of vegetation
and measure some of the properties of the surface....ications, soil moisture estimation, flood mapping, vegetation
monitoring and the fusion of SAR images and optical images. Prof. Paolo Ferrazzoli of the Univers...
European airborne campaign simulates Sentinel imagery over land
...new methods for retrieving information on soil and vegetation
characteristics from SAR and optical images. A total of 60 people from 15 different institutes in eight different countries were involved in the AgriSAR activity, with around 40 people participating during the intense measurements periods. ...
Increased risk of hantavirus forecast for US southwest
... taken in 2005. The images provided information on vegetation
growth, soil moisture and other ecological conditions, which Glass and his colleagues previously determined were where mice and hantavirus thrived. They then calculated the level of risk for the region and for specific areas within the region in 20...
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