Experiment suggests limitations to carbon dioxide 'tree banking'
...id allow the trees to grow more tissue, only those pines receiving the most water and nutrients were able to store significant amounts of carbon that could offset the effects of global warming, scientists told a national meeting of the Ecological Society of America (ESA). These results from the decade-lo...Chickadee, nutchatch presence in conifers increases tree growth, says CU-Boulder study
...ed and logged and subsequently replaced by smaller pines that offer limited breeding opportunities for cavity-nesting birds like chickadees and nuthatches, which nest and lay their eggs in the holes of large trees and dead snags. "This is a very rigorous study that essentially shows that even modest lit...Hail to the hornworts: New plant family tree sheds light on evolution of life cycles
...ametophytes. But if you look at plants like ferns, pines and flowering plants, they spend most of their tim...ornworts and vascular plants (which include ferns, pines and flowering plants). Their analysis showed that liverworts---tiny green, ribbon-like plants often ...More carbon dioxide may help some trees weather ice storms
...iversity outdoor test facility found that loblolly pines growing under carbon-dioxide levels mimicking thos... "Before the storm, I was absolutely certain the pines would be more susceptible to ice damage under elevated concentrations of carbon dioxide," said Ram O...Pine plantations may be one culprit in increasing carbon dioxide levels
...clearing more stands of hardwood trees and natural pines in order to cultivate plantations. Sohngen and Brown estimate that an area roughly the size of Los Angeles about 333,600 acres (135,000 hectares) is converted to pine plantations each year. Hardwood forests tend to store more carbon than pine p...Storing carbon to combat global warming may cause other environmental problems, study suggests
...es are heavy water using evergreen species such as pines and eucalyptus, he added. However, the researchers said adding more of these plantations would also release more moisture into a region's atmosphere, as trees roots removed water from the soils and discharged some portions as water vapor emanating th...Why Christmas trees are not extinct
...roblem. The "pipes" that carry water through firs, pines and other conifers are 10 times shorter than those in flowering trees. But a University of Utah study suggests why conifers not only survive but thrive: efficient microscopic valves let water flow through conifers about as easily as it flows through ...Coastal retreat in face of rising sea levels found to be influenced by wildfires
...aid. At a site where a forest of loblolly and pond pines had been burned in May 2004, he found only marsh g...competition and the higher water table prevent the pines from returning. But after further experiments showed that pine seedlings were able to grow prolifica...Underlying cause of massive pinyon pine die-off revealed
...e underlying cause of death for millions of pinyon pines throughout the Southwest, according to new researc...nitially the trees managed, but in 2002 the pinyon pines began to die. By the end of 2003, more than 90 percent of the pinyons on the plot were dead. Breshea...Lethal needle blight epidemic may be related to climate change
Biologists studying a lethal blight of lodgepole pines in northwestern British Columbia present strong ev...or threat to northern temperate forests. Lodgepole pines are an economically important species, being used in construction and for pulp. Alex Woods and his c...High carbon dioxide levels spur Southern pines to grow more needles
...University study has found that maturing stands of pines exposed to the higher levels of carbon dioxide exp... most recent six years of the FACE experiment, the pines receiving elevated CO2 had on average about 17 percent more needles than untreated pines. Higher nee...Are hurricanes increasing? Ask a Georgia pine tree
...g to what other researchers have learned about how pines exploit rainwater, says Mora. Of course, not every hurricane drops rain on Valdosta, Georgia, says Mora. So to get a fuller picture of hurricane frequencies her team has already begun looking at and searching for more locations and old living trees ...Study yields mixed results on potential for pine trees to store extra carbon dioxide
MONTREAL -- Southern pines appear to grow and conserve water somewhat better ...hus, the researchers concluded, enhanced growth of pines may not constitute a long-term sink for human-produced carbon dioxide which might ameliorate global ...Researchers discover key gene involved in bark beetle pheromone production
...essed. The Lake Tahoe basin lost 30 percent of its pines to bark beetle infestation during the 1986-1994 drought, according to Blomquist. There are several hundred species of bark beetles, which are in the insect family Scolytidae. These beetles are difficult to control via insecticides because they live a...Alien woodwasp, threat to US pine trees, found in N.Y.
...stablished in the United States, it would threaten pines coast-to-coast, particularly in the pine-dense sta...tes in the Southeast. One target would be loblolly pines in Georgia. Finding one bug in a trap is no small matter. Where there's one, there's likely to be m...... the fungus Cronartium ribicola, has plagued white pines for more than 100 years. Although plant pathologis...ranches and trunks, eventually causing death. Rare pines in fragile ecosystems are now threatened by this disease. Plant pathologists use a varie...