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Latest Pinyon pine Stories

Pinyon Pine Cone Decline Likely Caused By Southwest Regional Warming
2013-02-12 17:48:26

University of Colorado at Boulder Creeping climate change in the Southwest appears to be having a negative effect on pinyon pine reproduction, a finding with implications for wildlife species sharing the same woodland ecosystems, says a University of Colorado Boulder-led study. The new study showed that pinyon pine seed cone production declined by an average of about 40 percent at nine study sites in New Mexico and northwestern Oklahoma over the past four decades, said CU-Boulder...

Dying Trees Set Stage For Erosion And Water Loss
2012-06-28 04:01:37

New research concludes that a one-two punch of drought and mountain pine beetle attacks are the primary forces that have killed more than 2.5 million acres of pinyon pine and juniper trees in the American Southwest during the past 15 years, setting the stage for further ecological disruption. The widespread dieback of these tree species is a special concern, scientists say, because they are some of the last trees that can hold together a fragile ecosystem, nourish other plant and animal...

Noise Pollution Has Effect On Plants, Study Finds
2012-03-23 06:50:06

A new study published in the Proceedings of the Royal Society B has found that human noise like traffic can have ripple effects on plants. Lead author Clinton Francis of the National Evolutionary Synthesis Center (NESCent) in Durham, North Carolina, said the consequences of noise could last for decades, even after the source of the noise goes away. Previous studies found that some animals increase in numbers near noisy sites, while others decline, but the results of the new study found...

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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2008-02-27 14:45:00

An ability to avoid the plant equivalent of vapor lock and a favorable evolutionary history may explain the unusual drought resistance of junipers, some varieties of which are now spreading rapidly in water-starved regions of the western United States, a Duke University study has found."The take-home message is that junipers are the most drought-resistant group that has ever been studied," said Robert Jackson, a professor of global environmental change and biology at Duke's Nicholas School of...


Latest Pinyon pine Reference Libraries

38_56be07171508211e191a87f238fc23f9
2007-10-26 12:30:07

The Pinyon Jay (Gymnorhinus cyanocephalus), occurs in western North America from central Oregon to northern Baja California and east as far as western Oklahoma though it wanders further afield out of the breeding season. It lives in foothills where the pinyon pines (Pinus edulis and Pinus monophylla) occur. It was first collected and described along the Maria River in northern Montana in 1833. The Pinyon Jay is between the North American Blue Jay and the Eurasian Jay in size. Its overall...

34_a3601abeb99584b617a9132dad42ffdb
2005-06-14 09:03:05

The Clark's Nutcracker (Nucifraga columbiana) is a large passerine bird in the family Corvidae. It is slightly smaller than its Eurasian relative, Spotted Nutcracker (N. caryocatactes). It is ashy-grey all over except for the black-and-white wings and central tail feathers (the outer ones are white). The bill, legs and feet are also black. This bird is found in western North America from British Columbia and western Alberta in the north to Baja California and western New Mexico in the...

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Word of the Day
malpais
  • The ragged surface of a lava-flow.
'Malpais' translates from Spanish as 'bad land.'