Nov 15, 2016

Observed and anticipated impacts of drought on forest insects and diseases in the United States

by
Thomas E.Kolba, Christopher J.Fettig, Matthew P.Ayres, Barbara J.Bentz, Jeffrey A.Hickee, Robert Mathiasena, Jane E.Stewartf, Aaron S.Weed
,
Forest Ecology and Management
  • Intense drought increases bark beetle outbreaks in arid forests of the western US
  • Drought does not have a large role in bark beetle outbreaks in the eastern US
  • Defoliators exhibit no consistent response to drought
  • Response to drought of sapfeeders is nonlinear
  • Drought impacts differ between primary and secondary fungal pathogens