Quantcast

Latest Don Waller Stories

3557a5f8a43ffbc0e3658583f8011722
2009-12-04 09:45:00

The rising level of atmospheric carbon dioxide may be fueling more than climate change. It could also be making some trees grow like crazy. That is the finding of a new study of natural stands of quaking aspen, one of North America's most important and widespread deciduous trees. The study, by scientists from the University of Wisconsin-Madison and the University of Minnesota at Morris (UMM) and published today (Dec. 4) in the journal Global Change Biology, shows that elevated levels of...

bdc7c9bcd0a8760aad8268d464d6c7201
2009-07-20 13:25:00

Scientists have traced the origin of the Venus flytrap and another predatory plant back to a single ancestor with sticky leaves. Botanists told BBC Earth News that the plants' evolution was a result of the need to devour larger animals. This evolution caused the plants to develop new forms of weapons, including teeth and sensor hairs. There are several plants known to man that hunt prey using an array of tools. Scientists focused on the Venus flytrap and the waterwheel plant. The waterwheel...

2009-06-11 11:36:13

Failing to see the forest for the trees may be causing us to overlook the declining health of Wisconsin's forest ecosystems.Even areas with apparently robust trees and lush canopies are threatened as forests are increasingly fragmented by roads and development, becoming isolated green islands in a sea of agricultural fields, housing tracts, and strip malls, say University of Wisconsin-Madison researchers.A new study is revealing that decades of fragmentation of Wisconsin's forests have taken...


Word of the Day
omphalos
  • The navel or umbilicus.
  • In Greek archaeology: A central boss, as on a shield, a bowl, etc.
  • A sacred stone in the temple of Apollo at Delphi, believed by the Greeks to mark the 'navel' or exact center-point of the earth.
'Omphalos' comes from the ancient Greek.
Related