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a6f7e6ff77b6fa7a777530bd4d51ff951
2009-01-23 07:15:00

Researchers from a variety of agencies and universities in the United States and Canada reported Thursday that trees throughout western North America are dying at twice the rate of 30 years ago. They say rising temperatures are the likely cause. These weaker and thinner forests will become more vulnerable to wildfires and may absorb less carbon dioxide, accelerating global warming, they say. The researchers studied trees in old-growth forests for more than five decades in order to document...

2009-01-02 09:19:50

Canada's 1.2 million square miles of forests have turned from being carbon-absorbing aids to the environment to carbon-emitting liabilities, scientists say. Since 1999, and especially in the last five years, the forests have shifted from being a carbon sink to a carbon source, Werner Kurz, senior research scientist at the Canadian Forest Service in Vancouver, told a Chicago Tribune correspondent. Rising global temperatures are drying out forests making them more susceptible to fires, which...

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2008-10-06 09:50:00

Cooperation between insects and bacteria suggests inter-species collaboration may be common in many ecosystems Humans living in communities often rely on friends to help get what they need and, according to researchers in the lab of Cameron Currie at the University of Wisconsin-Madison, many microbes, plants and animals benefit from 'friendly' associations too. The Currie team's study, which was funded by the National Science Foundation (NSF) and published in the Oct. 3, 2008, issue of the...

2008-10-02 15:10:00

U.S. scientists say they've discovered pine beetles carry an antibiotic molecule that can destroy pathogenic fungi -- something no drugs can yet achieve. A team led by Harvard Medical School Professor John Clardy and University of Wisconsin Professor Cameron Curie say the findings suggest a potential new source of pharmaceuticals and also demonstrate how symbiotic relationships are essential for the diversification of life and evolution of organisms. The scientists say a pine beetle about...

2008-09-30 12:00:26

U.S scientists say pine bark beetles killing large areas of forests in the Rocky Mountains might be altering local weather patterns and air quality. The international research project is being led by scientists at the National Center for Atmospheric Research in Boulder, Colo. "Forests help control the atmosphere and there's a big difference between the impacts of a living forest and a dead forest," said NCAR scientist Alex Guenther. "With a dead forest, we may get different rainfall...

2008-09-13 00:00:15

Utah researchers said bark beetles are destroying spruce trees in the Dixie National Forest. The U.S. Forest Service's Bark Beetle Technical Working Group said the bark beetle is an "agent of change" in conifer forests in the Rocky Mountain region, the Deseret Morning News reported this week. "We're talking hundreds of thousands of acres they have basically been wiped out -- pretty much the entire spruce component in the Dixie National Forest," Colleen Keyes of the Utah Division of...

2008-09-08 09:00:24

By Stephen Speckman Deseret News A vicious cycle is brewing in Utah: Bark beetles are killing a lot of trees in the state. Dead trees are fuel for wildfires, which experts say contributes to global warming. And climate change is now being blamed for an increased population of bark beetles. The Dixie National Forest bears one of the most obvious signs in Utah of the mark being left by a tiny tree predator commonly known as the bark beetle, a wood-boring insect that in large enough numbers...

2008-08-20 18:00:29

OTTAWA, ONTARIO--(Marketwire - Aug. 20, 2008) - The Honourable Chuck Strahl, Minister of Indian Affairs and Northern Development on behalf of Gary Lunn, Minister of Natural Resources today announced additional funds of up to $10.8 million from the Mountain Pine Beetle Program for continued efforts to reduce wildfire risk to Mountain Pine Beetle (MPB) affected First Nation Communities. "Today's investment further demonstrates our Government's continued commitment to mitigate the impacts of...

2008-07-21 03:00:25

By Hazlehurst, John During the last 10 years, mountain pine beetles have killed more than 1.5 million acres of lodgepole pines statewide. Summit County, home to Colorado's ski industry, has been particularly hard hit. The verdant forests that once framed Breckenridge, Copper Mountain, Keystone and Beaver Creek are dying, attacked by an invading army of microscopic beetles less than an eighth of an inch in length. Tens of thousands of acres of dead or dying trees now surround...

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2008-07-16 09:15:00

Amy Gannon, hatchet in hand, sliced a slab of bark from a lodgepole pine tree near Wolf Creek, Mont., and quickly spotted a mountain pine beetle larva no bigger than her pinky fingernail. "This tree's done for," said Gannon, an entomologist with the Montana Department of Natural Resources and Conservation. As wildfires roar through tinder-dry forests in California, the mountain pine beetle is silently killing even more trees -- hundreds of thousands of acres of towering trees, mostly...


Latest Curculionidae Reference Libraries

Lodgepole Pine, Pinus contorta
2014-04-27 08:06:16

Lodgepole pine (Pinus contorta) is found in western North America in the upper mountains and subalpine regions of Colorado’s northern Rocky Mountains. This tree is considered to be invasive in New Zealand. This tree is also known as the shore pine, twisted pine, and contorta pine as well as black pine, scrub pine, and coast pine. The Lodgepole pine grows best between 8000 and 10,000 feet above sea level. They like to grow in well-drained, slightly acidic, sandy soils on gentle south...

37_746275a9352c8782dccf710785785fd2
2005-07-13 10:16:07

A weevil is a beetle from the Curculionoidea superfamily. There are over 60,000 species in several families, mostly in the family Curculionidae (the true weevils). They are typically small, measuring less than ¼ inch (6mm), and herbivorous. Due to the shape of their heads, weevils are commonly known as snout beetles. Weevils are destructive to crops. One example is the grain or wheat weevil (Sitophilus granarius), which damages stored grain. The boll weevil (Anthonomus grandis)...

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Word of the Day
call-note
  • The call or cry of a bird or other animal to its mate or its young.
'Call-note' is newer than 'bird-call,' which originally referred to 'an instrument for imitating the note of birds' but now also refers to 'the song or cry of a bird.'
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