Possible relationships between tree physiology, volatile organic emissions, and bark-beetle attack.
Abstract
Bark beetles (Scolytidae) are attracted by volatile organic compounds emitted from the bark. Emission rates are temperature-dependent. The project thested the hypothesis that sapflow can have a cooling effect on sapwood and bark and that, as a result, reduced sapflow in stressed trees will cause higher bark temperatures, higher emission rates and stronger attraction of bark beetles. Parallel measurements of temperature profiles in bark and sapwood, sapflow, and emission rates found that the cooling effect of sapflow is too weak to account for substantial differences in emission rates.
Picea abies bark beetles terpene emission water balance Scolytidae
Publikationen
Baumphysiologische Parameter und deren möglicher Einfluß auf Emissionen flüchtiger Substanzen und Borkenkäferbefall.
Autoren: Offenthaler, I., Baier, P., Hietz, P., Rosner, S., Richter, H., Führer, E. Jahr: 1999
Forschungsbericht (extern. Auftraggeber)
Project staff
Hanno Richter
Em.O.Univ.Prof. Dr.phil. Hanno Richter
hanno.richter@boku.ac.at
Project Leader
01.07.1998 - 31.05.1999
Peter Hietz
Univ.Prof. Mag.rer.nat. Dr.rer.nat. Peter Hietz
peter.hietz@boku.ac.at
Tel: +43 1 47654-83110
Project Staff
01.07.1998 - 31.05.1999
Sabine Rosner
Assoc. Prof. Priv.-Doz. Dipl.-Ing. Dr.nat.techn. Sabine Rosner
sabine.rosner@boku.ac.at
Tel: +43 1 47654-83101, 83117
Project Staff
01.07.1998 - 31.05.1999