News tagged with barren trees


Arkansas reclaims its status as the Bear State

Biology / Ecology

created Apr 25, 2009 | popularity 5 / 5 (1) | comments 0

(AP) -- The bear cub could be heard but remained unseen among the barren trees and dried leaves blanketing the forest floor.





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Dead Arizona trees mystify experts

Space & Earth /

created Sep 15, 2005 | popularity 4.7 / 5 (3) | comments 0

The mysterious deaths of hundreds of trees along Arizona's Santa Cruz River has prompted an investigation by environmentalists and scientists.


Large trees declining in Yosemite

Space & Earth / Environment

created Jul 29, 2009 | popularity 3.7 / 5 (3) | comments 3

Large trees have declined in Yosemite National Park during the 20th century, and warmer climate conditions may play a role.


Wasp

Well-traveled wasps provide hope for vanishing species

Biology / Plants & Animals

created Nov 09, 2009 | popularity 5 / 5 (3) | comments 0

They may only be 1.5mm in size, but the tiny wasps that pollinate fig trees can travel over 160km in less than 48 hours, according to research from scientists at the University of Leeds. The fig wasps are transporting ...


Trees facilitate wildfires as a way to protect their habitat

Trees facilitate wildfires as a way to protect their habitat

Biology / Plants & Animals

created Oct 28, 2009 | popularity 4.5 / 5 (2) | comments 0

Fire is often thought of something that trees should be protected from, but a new study suggests that some trees may themselves contribute to the likelihood of wildfires in order to promote their own abundance ...


ARS Scientists Cryopreserve Pest-Imperiled Ash Trees

Scientists Cryopreserve Pest-Imperiled Ash Trees

Biology / Ecology

created Oct 28, 2009 | popularity 4.3 / 5 (4) | comments 0

(PhysOrg.com) -- Using cryopreservation methods, Agricultural Research Service (ARS) scientists have devised a procedure for storing frozen budwood from ash trees (Fraxinus) and thawing the delicate buds for ...


Time of day matters to thirsty trees, researcher discovers

Biology / Ecology

created Nov 23, 2009 | popularity not rated yet | comments 0

The time of day matters to forest trees dealing with drought, according to a new paper produced by a research team led by Professor Malcolm Campbell, University of Toronto Scarborough's vice-principal for research and colleagues ...


Ants are friendly to some trees, but not others

Biology / Plants & Animals

created Nov 06, 2009 | popularity 4.7 / 5 (6) | comments 0

Tree-dwelling ants generally live in harmony with their arboreal hosts. But new research suggests that when they run out of space in their trees of choice, the ants can get destructive to neighboring trees.


MSU Archaeology Team's latest find: 16,000-year-old sand dune

MSU Archaeology Team's latest find: 16,000-year-old sand dune

Other Sciences / Archaeology & Fossils

created Sep 21, 2009 | popularity 4.6 / 5 (5) | comments 0

(PhysOrg.com) -- A team of MSU researchers and archaeology students has confirmed the existence of an undisturbed, prehistoric sand dune beneath a grove of pine trees between Demonstration Hall and Munn Ice ...


The Monarchs' annual migration ritual has yet to be scientifically explained

Tree-eating bugs threaten Monarch butterfly in Mexico

Biology / Ecology

created Nov 21, 2009 | popularity 4 / 5 (1) | comments 0

The mysterious Monarch butterfly, which migrates en masse annually between Canada and Mexico, is now facing a new peril: another insect thriving in Western Mexican forests.


Higher carbon dioxide may give pines competitive edge

Higher carbon dioxide may give pines competitive edge

Space & Earth / Environment

created Aug 03, 2009 | popularity 4 / 5 (6) | comments 12

(PhysOrg.com) -- Pine trees grown for 12 years in air one-and-a-half times richer in carbon dioxide than today's levels produced twice as many seeds of at least as good a quality as those growing under normal ...



List of search results for barren trees