Tag: "forest" at biology news
Cornell Researchers Precisely Date Wood From Ancient Tomb In Turkey
...anation, Newton offers this scenario: "You go to a forest
today and take a sample from a tree that you know grew to 1996. By counting 200 rings, you know that the tree is 200 years old and started growing in 1776. Then, you compare the pattern of its rings with those from a piece of wood from a building y...
Southern Pine Beetle Reaching Outbreak Levels In North Florida
...U.S. pineforests from 1960 through 1990. Foltz and forest
entomologist James R. Meeker of the Florida Divisi...e in the last weekof June. They recommend that all forest
owners survey their property, asshould homeowners who might have vulnerable loblolly pines, the beet...
Bark Beetle Infestation Spurs Multifaceted Study
... to a better understanding of pre-European contact forest
ecologyand shed light on the early history of the ...ooking at the tree stumps to try to reconstructthe forest
structure before lumbering, the history of fire in the area andthe age of the trees before they were...
Duke Ecologist Says Logging Is Creating 'Mahogany Deserts'
...ies may live up to 600 or more years. High in the forest
canopy -- the only layer of the jungle to regularl...o mahogany seedlingssuccessfully growing under the forest
canopy. Any seedlings she found wereinstead "on roadsides and abandoned agricultural fields," shesai...
'Juliet' Evades Primate Center Expedition
...ptured three years ago, they found a heavilylogged forest
with no lemurs in sight. The capture effort will continue, said Glander, with expedition member CharlieWelch, who lives in Madagascar, returning to the Forest de la Gare areain late November. "Since we found that the lemurs grew more wary the longe...
NCAR Scientists Trek To Africa For Biosphere-Atmosphere Chemistry Study
...se, but it will provide a starting point. Tropical forest
landscapes are an important component of the global carbon cycle, so any imbalance there can have global consequences."...
KU Researcher Eyes The Rain Forest Through The Trees
...ch on a species by obtaining specimens in the rain forest
and then examining them in a KU lab to analyze the...cines and foods to lose." The total amount of rain forest
lost to deforestation may never be known, she said, because more is being cut. Also, small parcels o...
Urbanized Watersheds More Sensitive To Climate Change
...by humans," says Dr. David De Walle, professor of forest
hydrology. "No one, to our knowledge, has formally looked at urban watersheds in this way." De Walle is trying to see how urbanization affects sensitivity of stream flow to climate change. Using population data from the U.S. Census Bureau, prec...
Penn State Wetlands Project Seeks Scientific Evaluation Criteria
...t common type is an open-water pond with emergent forest
vegetation. "The flora and fauna associated with forested wetlands and open-water wetlands are markedly different," Brooks says. "What this means is that some types of wetlands will be very hard to replace, and if the choice comes down to destr...
Birds Deal With "Cocktail Party Effect"
...awn chorus," thecombination of sounds heard in the forest
during a springmorning, when all the birds are singing at once. The findings are detailed in a paper to be published in theMarch issue of the Journal of Comparative Psychology. They mayhelp scientists analyze how animals and people accomplish th...
First Planned Release Of Captive Lemurs In Madagascar Wilds Expected In Fall
...edrelease" of captive-born lemurs to a native rain forest
environmentwhere they will live apart from humans,... one of the few remaining parts of thelowland rain forest
that once dominated much of eastern Madagascar. Mostof that forest
has now been cleared for farming ...
The American Phytopathological Society Announces 1997 Awards
... plant health management in agricultural,urban and forest
settings. Members are located worldwide. For moreinformation, access the Society's home page on the Internet: http://www.scisoc.org...
More To Drought Than Meets The Eye
...ance of trees," says Dr. Marc Abrams, professor of forest
ecologyin the College of Agricultural Sciences. ...ude Abrams; Charles M. Ruffner, graduatestudent in forest
resources; and T. A. Morgan, undergraduate in forestryresources, looked at trees growing in four dif...
Oak Regeneration In Some Ohio Forests Is Failing, Researchers Find
...l mixed-oak forests inSoutheastern Ohio, a type of forest
that is common throughout Central Appalachiaand th...as low compared tothe number of mature oaks in the forest
canopy, also called the overstory.Forest ecologists had theorized that oak regeneration may not be a...
Planned Burning In Forests A Boon To Several Species Of Birds In Illinois
...tural disturbancessuch as wildfires. As a result, forest
canopies have closed, altering theflow of light to the ground and bringing about ecological changes: Shade-tolerantmaple trees have replaced oaks; ground cover has become fragmented; andbird and animal populations have changed. Oak savannas flouris...
CTC Visualizations Help Ecologists See The Forest And The Trees
...ysisof the workings of SORTIE, a computer model of forest
dynamics based onindividual-trees. The paper, "Sc...on University), to studythe behavior of a model of forest
dynamics. SORTIE is an individual-basedsimulation model of forest
dynamics that includes random vari...
Captive Lemurs To Depart For Madagascar Oct. 17 For First Release Into The Wild
...mong the few remaining parts of a vastlowland rain forest
that once dominated much of eastern Madagascar. Most of that forest
has now been cleared forfarming and local wood consumption, said Katz and Welch. Betampona, in fact,...
SFU Researcher Fools Forest Pest Into 'Barking Up The Wrong Tree'
...life of two of British Columbia's most destructive forest
insect pests. His goal? To fool the insects into b...e - find the trees they need to survive in a mixed forest
environment. The answer is in the air - in natural scents given off by the beetles, and, surprisingl...
10,000-Year-Old Clues Suggest Future Forest Changes
...climate was warmer in the past and how it affected forest
cover, and we can use this information as an analo... to that period (7,000-9,000 years ago) indicating forest
fires," Mathewes explains. He attributes the fires to a drier, warmer climate with prolonged drought...
Biogenic Emissions Higher Than Expected Over African Savanna
...." Huge stretches of African savanna and rain forest
are burned each fall and winter for agricultural a... greenhouse gas. Isoprene fluxes from the African forest
are lower than those reported for a tropical rain forest
in the Amazon basin. EXPRESSO gathered...
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