Tag: "tree" at biology news
NHGRI selects 13 new targets for large-scale sequencing program
...cies), the microbat (Microchiroptera species), the tree
shrew (Tupaia belangeri), the bushbaby (Otolemur garnettii), the hyrax (Procavia capensis), the pangolin (Manis species) and the sloth (Bradypus or Choloepus species). The ninth mammal is the Northern white-cheeked gibbon (Nomascus leucogenys). This...
UC San Diego undergraduates do cyberinfrastructure research in Asia, Australia
... sequences) to accurately place that genome in the tree
of life without needing further sequence information. CNIC's Lu Zhonghua will mentor Lee while he is in Beijing. Also headed for the Chinese capital is John Lee (no relation), a computer engineering major, who is tasked with developing a new visualiz...
Researchers discover key gene involved in bark beetle pheromone production
...otected. Only for a few hours do they fly from one tree
to another to join other bark beetles, mate and start a new life cycle. But other bark beetles know where to locate mates because they are responding to an "aggregation" pheromone. If this pheromone could be disrupted, the beetles wouldn't be able to...
Study in Royal Society journal on holly as an indicator of climate change
...es of holly, the only evergreen broad-leaved lower tree
species native to central and western Europe, beyo...udied the relationships between the coexistence of tree
species and the dynamics of organic matter in forests. A tropical peat swamp forest was selected as ...
Landscape corridors promote animal, plant dispersal
...na-Georgia border that is mostly dominated by pine tree
forests. At the researchers' request, the U.S. Forest Service arranged eight similar sites; each site included five areas cleared of trees. The central patch was connected to one other patch by a 150-meter-long, 25-meter-wide corridor, while three ot...
Trees, vines and nets microbial evolution changes its face
... distantly related organisms. This new view of the tree
of life could help us to better understand how dis...uence of horizontal gene transfer on the microbial tree
of life, they focused on the network of vines coursing through the tree's branches. This behaves in ...
Stories of descent: Deep genealogy
...cs, race, and ethnicity. Please bring your family tree
or other genealogical information. Event admission is $10.00. Featuring state-of-the-art, interactive exhibits targeted to students and adults, the museum helps translate the studies conducted by the National Academies into accessible, engaging exhi...
Expanding forests darken the outlook for butterflies, study shows
...eadows. According to Roland, the altitude of the tree
line in the Canadian Rockies is rising--likely due to global warming--and, outside of national parks, forest fires are usually suppressed. These factors are combining to create larger forests and smaller alpine meadows. This is bad news for butterfli...
Invasive honeysuckle opens door for new hybrid insect species
The animal family tree
may not be filled just with forks, but may also contain knots: hybrid species with two different ancestors rather than one, according to a team of Penn State researchers. "We are looking for the origin of species," says Dr. Dietmar Schwarz, post-doc...
Environment, area and diversification in the Iridaceae plant family
... College London) and colleagues use a phylogenetic tree
of the iris family to show that lineages within th...ess across the globe and among the branches of the tree
Happy and passive means more productive animals
...ents and sunlight. "Researchers recognized this in tree
breeding even before plant breeding," Muir said. "They have often seen it when they thinned a stand of trees, it had much better yields. The key to making this system work for increased productivity is tracking the pedigree of plants and animals to k...
Study shows big game hunters, not climate change, killed off sloths
...r example, we might want to consider taking living tree
sloths and introducing them to protected forested ...day's only surviving descendants are several small tree
sloths whose range extends from southern Mexico to southern Brazil, he said. Such an experiment migh...
DNA traces evolution of extinct sabertooths and the American cheetah-like cat
...d this week, researchers created an updated family tree
for the ancient cats by comparing ancient DNA extr...ed to any living felid species. The phylogenetic tree
drawn from the new data also shows that the American cheetah-like cat is genetically most closely re...
Study yields mixed results on potential for pine trees to store extra carbon dioxide
...versity campus, stands of loblolly pines and other tree
species are receiving extra CO2 through tower-born...sible factors in growth declines would include the tree
stands' increasing ages, and the relatively low amounts of nitrogen in Duke Forest soils drained of ...
Are hurricanes increasing? Ask a Georgia pine tree
...his." Mora's group divided each individual annual tree
ring in the trees into early-year and late-year gr... unusual isotopic signal is preserved in the woody tree
cells that start growing as soon as the sun breaks through the storm clouds. The trees pick up the s...
Long-sought flower-inducing molecule found
...that can also lead to the development of efficient tree
breeding for forestry"....
New technique could alter field of mouse genetics
...c can also be removed from its place in the family tree
by breeding a mouse with another that carries the enzyme necessary to excise the jumping gene. "We do not know why the P element did not work in mammalian organisms, and we do not know why this particular one works," Xu said, "but this system is a dr...
More proof of woodpecker revealed in audio recordings
...unds like an ivory-billed woodpecker drumming on a tree
from a distance followed by a closer double rap. This drumming behavior is typical of many large woodpeckers closely related with the ivory-bill. Other recordings include sounds that resemble the ivory-billed woodpecker's distinctively nasal "kent" c...
Long sought-after flowering signal found
...wering", we normally think of colorful bouquets or tree
blossoms. The most important role of flowers is, however, that they give rise to fruits and seeds, including all the cereal grains, and thus are the basis of much of our daily lives. Because plants use environmental information to determine when to f...
Past droughts geographically widespread in the West, according to tree-ring data
...nd Salt and Verde river basins. By using data from tree
rings, University of Arizona researchers conclude that water supply for those western rivers fluctuated in synchrony during periods of severe drought. The study goes back almost 800 years in the Salt-Verde basin and covers waterways from the states o...
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