The occurrence of the threatened wood-living beetle Tragosoma depsarium (Coleoptera: Cerambycidae) was investigated in a 560 km² forested area in the mid-boreal zone in west-central Sweden. Twenty 1 ...

Reporting from the White Mountains, Calif. — — The White Mountains that straddle the California-Nevada border are known for their extreme environment. They get less than a foot of rain a year.

Faced with increasing losses of millions of trees being killed by the dramatic spread of the mountain pine beetle, Jasper National Park has come up with a new plan to halt the beetle's infestation. A ...