Tag: "canopy" at biology news
NASA satellite tracks hazardous smoke and smog partnership
...ed with the smog from Indonesia,creating an aerial canopy
of pollutants. Researchers tracked the pollution using data from NASA'sEarth Probe Total Ozone Mapping Spectrometer (TOMS) satelliteinstrument. "TOMS is the only satellite instrument thatfollows both smoke and smog, globally," said Anne Thompson,NASA...
Amphibian mortality linked to global climate change
...cline, where embryos laid under a heavy vegetation canopy
are not exposed to ultraviolet light. Other pathogens have been identified as a cause of death in other parts of the world. "Stress-related disease is the one consistent factor that may link amphibian deaths worldwide, and we have demonstrated that...
Disturbance can benefit some rare forest plants
...e; moderately disturbed forest (where the original canopy
layer was intact but there had been some logging, ...urbances such as clearcuts or extensive removal of canopy
trees. Moreover, preserving undisturbed forests remains important because they often have more biodi...
NASA helps conservation biologists get the big picture
...l forest from areas of cocoa planted under remnant canopy
trees in Brazil's Atlantic coast rainforest. Compared to optical technology, radar has the advantage of penetrating both the cloud cover and tree canopy. Such work could help identify high-biodiversity areas for reserves and corridors. This work is b...
To suppress or not to suppress: Questioning the ponderosa pine model of forest fire management
...nce that this model may be applicable to some open canopy
forests, some scientists question the logic of app...ces) will explore how fire history in these closed canopy
northern pine forests differs from the ponderosa pine model. Again, the scientists say there is lit...
Like storm clouds, natural disasters carry a silver lining, biologist says
...o larger fires that burn much hotter, torching the canopy
and destroying trees that otherwise would have survived. Its time to retire Smokey the Bear, Reice said. Likewise, building houses and other structures on the beach and by natural inlets is idiotic, he said. The question is not whether storms and s...
The influence of disturbance on tropical rain forest biodiversity: End of a controversy in sight
...rant), establish themselves by taking advantage of canopy
light gaps opened up by treefalls. Rapid growth, a... these species, enables them rapidly to form a new canopy
suitable for more shade-tolerant species to colonize. The non-pioneer heliophiles are the first of t...
Chinese tallow tree invades Texas prairies
...ing up real estate everywhere," he said. "Once the canopy
trees come down, theyll be replaced by Chinese tallow trees." Several experiments in the Big Thicket National Preserve investigate whether the same factors are responsible for the Chinese tallow trees success in the forests as in grasslands....
Picky eaters rare among tropical insects
...actions currently available. We collected from the canopy
level down to the forest floor over an entire year, and fed living insects with leaves from the plants where they were found. This way, we were sure which insects actually feed on a given species over time, commented Yves Basset, currently Tupper Fe...
2002 ESA award winners
... the forest to science and public inquiry with her canopy
walk designs. Also a prolific writer, she has proven herself as a research scientist and as an author of books including her autobiography, Life in the Treetops. Robert H. MacArthur Award James H. Brown Given every other year to an established e...
The effects of human-caused atmospheric changes on tropical forests
...d higher temperatures. Temperatures experienced by canopy
leaves may be close to the point at which respiration exceeds photosynthesis so that net production of CO2 results. Positive feedback between higher temperatures and CO2 production by tropical forests could be catastrophic by resulting in accelerate...
Ira Rubinoff honored by the Association for Tropical Biology
...s" to reach forest canopies. There are now eleven canopy
cranes worldwide. He played a critical role in the establishment of the Center for Tropical Forest Science (CTFS), a network of 17 large forest plots under long term study in 14 tropical countries where researchers currently monitor more than 3,000,0...
Wildlife researcher captures jaguars with camera
... is better if the stations are under complete tree canopy
cover because the slightest motion or heat disturbance can activate a camera. "With all of the wires and placement requirements (e.g. clearing the site), it takes over an hour to set each one up," says Kelly. "The jaguars seem to show curiosity towa...
Is remote sensing the answer to today's agriculture problems?
.... By relating the infrared reflectance of the crop canopy
to wheat tiller density, the scientists were able to differentiate wheat fields that would benefit from early nitrogen fertilizer applications compared to wheat fields that would benefit from standard nitrogen fertilizer applications. They tested 978...
Crop producers go high-tech with GPS technology
...nformation layers (such as yield maps, aerial crop canopy
images, digitized soil survey maps, and electrical conductivity maps among others) to define sampling areas within a field. The lime application portion of the study showed the VRT method resulted in more efficient lime management, reducing the lime ...
Arthropods of Tropical Forests
...but least understood creatures on our planet. And canopy
biologists, pioneers of a very young science, are ... little is known of the life histories of tropical canopy
insects and spiders. Enormous advances in the field have been made since the first book on canopy
SRS research highlights from the Red-Cockaded Woodpecker Symposium
..., again, that of the historic pine stands--an open canopy
of large pines with little or no midstory and an abundant and diverse groundcover. For more information: Craig Rudolph (936-569-7981) or email@example.com . *The fire-maintained shortleaf pine forests that once grew in the Ouachita Mountains of ...
Researchers discover birds protect trees in neotropics by eating insects
CHAMPAIGN, Ill. -- High in the canopy
of a Neotropical Panamanian forest, researchers ha...s," said Van Bael, who studied bird activity on 44 canopy
branches of three tree species on 18 individual trees and 38 saplings (younger ones under the canopy...
Leaf fall in ancient polar forests still a mystery
...hesis states that the amount of carbon lost when a canopy
of leaves is shed annually is less than the total carbon lost by canopy
respiration during the warm, dark winter months and the small amount of leaf loss in evergreens. Th...
New discoveries about old-growth forests
...l on the forest floor, and horizontal and vertical canopy
diversity. But Tom Spies, an ecologist at the Forest Service's Pacific Northwest Research Station, says that as scientists study old-growth forests more closely, they are discovering that these forests contain many stages of forest development and t...