Browse News Stories
221 to 230 of 1,273 stories
view headlines only
-
An Economic Analysis of Emerald Ash Borer Management Options
February 9, 2012 A new study examines several options for managing the emerald ash borer, an invasive insect that is destroying US ash ... > full story -
Invasive Alien Predator Causes Rapid Declines of European Ladybugs
February 6, 2012 A new study provides compelling evidence that the arrival of the invasive non-native harlequin ladybird (ladybug) to mainland Europe and subsequent spread has led to a rapid decline in ... > full story -
Tree Rings May Underestimate Climate Response to Volcanic Eruptions
February 5, 2012 Some climate cooling caused by past volcanic eruptions may not be evident in tree-ring reconstructions of temperature change because large enough temperature drops lead to greatly shortened or even ... > full story -
Yellow-Cedar Are Dying in Alaska: Scientists Now Know Why
February 1, 2012 Yellow-cedar, a culturally and economically valuable tree in southeastern Alaska and adjacent parts of British Columbia, has been dying off across large expanses of these areas for the past 100 ... > full story -
For the Birds: Winged Predators Seek Certain Trees When Foraging for Caterpillars
January 26, 2012 Location matters for birds on the hunt for caterpillars, according to researchers. Findings suggest that chickadees and others zero in on the type of tree as much as the characteristics of their ... > full story -
Jostling for Position: Competition at the Root of Diversity in Rainforests
January 26, 2012 Another attractive theory falls foul of the facts. A census of trees in rainforests on three continents has confirmed that competition plays a central role in structuring communities. This ... > full story -
Wasp Found in Upstate New York Shows Up in Southern California
January 24, 2012 In August 2010, an entomologist at the University of California, Riverside discovered a tiny fairyfly wasp in upstate New York that had never been seen in the United States until then. Nearly exactly ... > full story -
Speed Limit for Birds: Researchers Find Critical Speed Above Which Birds -- And Drones -- Are Sure to Crash
January 19, 2012 The northern goshawk is one of nature's diehard thrill-seekers. The formidable raptor preys on birds and small mammals, speeding through tree canopies and underbrush to catch its quarry. While speed ... > full story -
'Miracle Tree' Substance Produces Clean Drinking Water Inexpensively and Sustainably
January 18, 2012 A natural substance obtained from seeds of the "miracle tree" could purify and clarify water inexpensively and sustainably in the developing world, where more than 1 billion people lack access to ... > full story -
New Hope to Save Hemlock Trees from Attack
January 10, 2012 Thousands of broken trees line the banks of the Chattooga River. The dead gray stabs were once evergreen monsters offering shade to trout and picturesque views to visitors. These Eastern hemlocks are ... > full story
Search ScienceDaily
Number of stories in archives: 137,228

