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Latest Jeffry Mitton Stories

2012-03-15 22:58:36

Warming temperatures appear to allow pine beetles to now breed twice a year Long thought to produce only one generation of tree-killing offspring annually, some populations of mountain pine beetles now produce two generations per year, dramatically increasing the potential for the bugs to kill lodgepole and ponderosa pine trees, University of Colorado Boulder researchers have found. Because of the extra annual generation of beetles, there could be up to 60 times as many beetles...


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