We used DNA fingerprinting by random amplified polymorphic (RAPD) DNA and electrophoretic characterization of esterase isozymes to investigate the genetic relatedness of North American populations of the exotic bark beetle Tomicus piniperda (L.). Cluster analyses of genetic distances among populations identified the Illinois population as an outlier… (More)
Bark beetles of the genus Dendroctonus are natural inhabitants of forests; under particular conditions some species of this genus can cause large-scale tree mortality. However, only in recent decades has priority been given to the comprehensive study of these insects in México. México possesses high ecological diversity in Dendroctonus–Pinus associations.… (More)
AIM The aim of this study was to investigate the co-prescribing of beta-antagonists and beta-agonists in the community, and to assess the potential hazards of such co-prescribing. METHODS The study was set in the population of Tayside, Scotland (population approximately 400,000), between January 1993 and March 1993. An automated person-specific… (More)
restoration of southwestern ponderosa pine ecosystems: A broad perspective. From renewable energy to fire risk reduction: a synthesis of biomass harvesting and utilization case studies in US forests.
Papers were provided by the authors in camera-ready form for printing. Authors are responsible for the content and accuracy. Opinions expressed may not necessarily reflect the position of the U.S. Department of Agriculture. Idaho Department of Lands; (7) mountain pine beetle larvae (Dendroctonus pon-The Forest Service of the U.S. Department of Agriculture… (More)