Tag: "tree" at biology news
Wildlife researcher captures jaguars with camera
...e. It 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 curiosi...
To thin or not to thin
...cades were densely replanted with uniformly spaced tree
seedlings. The original management goal of most pl... years ago, with a primary objective of commercial tree
harvest. "As a group we found indications of positive benefits for some plants and animals less than...
Photosynthesis analysis shows work of ancient genetic engineering
...ding on which genes were tested. "We did a kind of tree
analysis of all 188 genes to determine what the best evolutionary tree
was. We found that a fraction of the genes supported each of the different possible arrangements of ...
Discovering the Tree of Life
...ed the awards, "now is the time to reconstruct the tree
of life. The conceptual, computational and techno...ly resolve most, if not all, major branches of the tree
of life. At the same time, progress in many research areas from genomics to evolution and developme...
Detecting bacteria in space: The good, the bad and the unknown
...entity." Their approach is based off the bacterial tree
of life, which is arranged according to similarities in organisms' DNA sequences. Organisms whose DNA sequences are closely matched are more closely related than organisms whose DNA sequences are less similar. Fox and Willson have developed a metho...
Field Museum plays key role in massive project to map Tree of Life
...netically related in a vast evolutionary tree. The tree
imagery has prompted scientists to classify all organisms into groups and discern patterns of evolutionary and historical relationships that explain the similarities and differences between them. Today, many branches of the Tree of Life remain unan...
Oregon power companies offset carbon through investment in Ecuadors rainforest
...erve, this project will replant 15 native hardwood tree
species from local nurseries. Healthy, intact forests store carbon taken from the atmosphere and thus play a unique role in mitigating the harmful effects of climate change. Global deforestation accounts for 20 percent of the annual emission of gre...
Planting time for forest trees branches out to new seasons
...orp. with the research plots located on industrial tree
farms in Louisiana. But, Messina said, the finding...ngs was planted alongside. Since the containerized tree
roots are not exposed, better survival might result thereby expanding the planting window of time. ...
Evolution upset: Oxygen-making microbes came last, not first
...ight be neither. By creating a new genetic family tree
of the world's most primitive bacteria and compari...se biologists haven't had a very good evolutionary tree
of bacteria," says Blank. To get a better family tree, Blank took advantage of growing genome archiv...
JGI to decode DNA of destructive plant pathogen
...t could quickly identify the microbe's presence in tree
samples. "We can also identify rapidly changing parts of the genome that can be used to track the paths of infection through a forest," Boore said. "We may also be able to identify specific genes that are necessary for infection and to develop treat...
Chestnuts used chemicals to dominate southern Appalachian forests
...sted the effects of fallen chestnut leaves on five tree
species that historically competed with the Americ...lack walnut is a prime example of allelopathy: the tree
produces the chemical Juglone, which suppresses the growth of trees, shrubs, and other vegetation. O...
Science picks leads, feeds and story seeds (October 2002 edition)
...than any other natural recorder of climate such as tree
rings or sediment layers. The laboratory is jointly funded and operated by the U.S. Geological Survey (USGS) and the National Science Foundation (NSF). Learn more at: http://nicl.usgs.gov/index.html . Jon Campbell ( email@example.com ) 703-648-4...
Tourists, soothsayers & scientists try to predict peak Fall foliage color
...n the leaves can also produce red. But why would a tree
make red in a leaf that's about to die?" asks Scha...that allows the leaf to linger long enough for the tree
to absorb more nutrients." But even scientist Schaberg isn't a soothsayer. In early September he pre...
Researchers to toast good bacteria
...to understand how a small, related, section of the tree
of life evolved?"...
Key sensory proteins unveiled in mosquito genome found by Illinois entomologist
...hila genomes. Their work resulted in a phylogenic tree
that depicts which receptors are in both genomes and which ones are in just one genome. The researchers conclude that while many of the receptors found in both insects are roughly equivalent, they evolved largely separately. "In other words," Robert...
UNC, other universities will help NASA develop space-age materials
...es similarly to the way cuts heal on a sugar maple tree
or a skateboarder's knobby knees, except more quickly. Or change shape somewhat without the great weight that hydraulic systems add. Science fiction? So far yes, but scientists and officials at the National Aeronautics and Space Administration believ...
Newly revealed viral structure suggests a continuum in the evolution of viruses
...at an intermediate point on the viral evolutionary tree
and help illuminate the overall evolutionary path taken by families of viruses. The new images show not only the outer coat of the bacteriophage, but also reveal details of its inner membrane, a poorly-understood fatty double layer beneath the coat...
Wildlife corridors shown effective
...na-Georgia border that is mostly dominated by pine tree
forests. On the researchers' request, the U.S. Forest Service had its workers arrange eight similar sites; each site included five areas cleared of trees and groundcover. The central patch was connected to one other patch by a 150-meter-long, 25-mete...
UC researchers confirm coast redwood and Douglas fir as hosts for sudden oak death pathogen
...nclear what caused the dieback of a mature redwood tree
in Mill Valley, widely reported earlier this year ...s having been infected by P. ramorum. Although the tree
stump tested positive for P. ramorum using DNA tests, Rizzo and Garbelotto found that the tree
Loblolly pine open for genetic engineering, research shows
...TION - The nation's most important commercial pine tree
- the loblolly - has been successfully genetically...est Service. The species grows rapidly as a young tree
and lives about 75 years, but does not reach reproductive maturity for as many as 10 years after ger...
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