Chemical Ecology of Bark Beetles in a Complex Olfactory Landscape
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منابع مشابه
~YSIOLOGIG~L AND CHEMICAL ECOLOGY Attraction of the Bark Beetle Parasitoid Rop~rocews xylophugorum (Hymenoptera: Pteromalidae) to Host-Associated Olfactory Cues
Studies were conducted to identify host location cues used by Roptrocerus xylophagorum (Batzeburg), a larval/pupal parasitoid of bark beetles. In Y-tube olfactometer bioassays, female rylophagorum were attracted to infested bark (i.e., phloem, cambium, and outer corky bark tissues) removed from bolts of loblolly pine, Pinus tueda L., colonized by the late instar larvae and pupae of the bark bee...
متن کاملEcological Interactions of Bark Beetles with Host Trees
Certain species of bark beetles in the insect order Coleoptera, family Curculionidae (formerly Scolytidae), are keystone species in forest ecosystems. However, the tree-killing and wood-boring bark and ambrosia beetles are also among the most damaging insects of forest products including lumber, paper, and ornamental/recreational trees. The pest status of these beetles has been elevated with th...
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We conducted laboratory and Þeld bioassays to characterize the pheromone system of an ash bark beetle, Hylesinus pruinosus Eichhoff (Coleoptera: Curculionidae: Scolytinae). Solitary females in newly initiated galleries in ash logs produced ( )-exo-brevicomin, whereas male beetles paired with females produced ( )-endo-brevicomin, lesser quantities of ( )-exo-brevicomin, and a third compound that...
متن کاملBehavioral mechanisms involved in reducing competition in bark beetles
Bark beetles feed and reproduce in the phloem/cambium tissue of trees where severe competition between individuals of the same and different species significantly reduces their reproductive success. In this coevolutionary setting, individuals that can avoid competition whenever possible by means of genetically controlled behavioral mechanisms are naturally selected. Avoidance of intraspecific a...
متن کامل11. Ecology and evolution of mycophagous bark beetles and their fungal partners
Introduction Associations between bark beetles (Coleoptera: Curculionidae: Scolytinae, or family Scolytidae, depending on the classification used, Bright 1993; Marvaldi et al. 2002) and fungi are varied and well known, but mycophagy (fungal feeding) by bark beetles has received relatively little attention. This may be due to the rarity or relative unimportance of fungal feeding by bark beetles,...
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