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  • 1
    Electronic Resource
    Electronic Resource
    Influence of chemically mediated behavior on host tree colonization by four cohabiting species of bark beetles (1980)
    Springer
    Journal of chemical ecology 6 (1980), S. 395-414 
    Details
    ISSN: 1573-1561
    Keywords: Coleoptera ; Scolytidae ; bark beetle ; Dendrocionus ; Ips ; pheromone ; colonization ; attraction ; inhibition ; behavioral interaction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Chemically mediated behavioral interactions among four species of Scolytidae cohabitingPinus taeda in east Texas appear to be significant in delineating breeding areas within trees and in influencing the sequence of colonization.Dendroctonus frontalis usually arrived first and was not attracted to logs occupied by any of the threeIps species (I. avulsus, I. calligraphus, andI. grandicollis). The response ofI. avulsus to conspecific males was enhanced by the simultaneous presence of actively boring maleI. grandicollis. The response ofIps calligraphus was inhibited in areas whereI. avulsus was also present, but, in turn,I. calligraphus inhibited the response ofI. grandicollis and attractedI. avulsus. Ips grandicollis was strongly inhibited by the simultaneous presence of femaleD. frontalis or maleI. calligraphus, and in turn, maleI. grandicollis inhibitedD. frontalis. The result of this highly interactive olfactory system is that host trees are colonized very rapidly and that, in the process, disadvantageous reproductive interactions are minimized.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01402917
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  • 2
    Electronic Resource
    Electronic Resource
    Evaluation of two attempts to trap defined populations ofScolytus multistriatus (1982)
    Springer
    Journal of chemical ecology 8 (1982), S. 125-136 
    Details
    ISSN: 1573-1561
    Keywords: Aggregation ; pheromone ; elm ; mark-release ; multilure ; Coleoptera ; Scolytidae ; Scolytus multistriatus ; trap-out ; Ulmus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Two experiments were conducted to investigate the use of a pheromone-based trap-out technique for suppressing populations ofScolytus multistriatus. In the first experiment, elm bolts containing the immature stages ofS. multistriatus were placed in an isolated community that contained elm trees, but which was essentially devoid of a resident beetle population. The infested bolts produced a total of 46,485 adult beetles of which 20% were recovered on traps baited with synthetic pheromone. In the second experiment beetles were released in a desert valley containing no resident elms or beetles. Only 1% of 20,000 released beetles were recaptured on traps erected on vertical cardboard cylinders and on elm logs. These rates of recapture are related to the attraction of beetles to naturally occurring brood sources versus pheromone-baited traps.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00984010
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    Paper (German National Licenses)
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