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Air sampling of its pheromone to monitor the occurrence of Osmoderma eremita, a threatened beetle inhabiting hollow trees

Svensson, Glenn LU ; Larsson, M C and Hedin, Jonas LU (2003) In Journal of Insect Conservation 7(4). p.189-198
Abstract
Osmoderma eremita is a threatened scarab beetle living in the hollows of old deciduous trees and is regarded as an umbrella species of the beetle fauna associated with this habitat. Several methods like pitfall trapping and wood mould sampling have been used to monitor the occurrence of O. eremita, but these methods cannot be applied for trees with certain characteristics. Recently, (R)-(+)--decalactone was identified as a male-produced sex pheromone of the species. Here, we show that -decalactone can be detected in hollow trees by air sampling and that the presence of the compound is strongly correlated with the occurrence of living male beetles in the same trees. Air was sampled from tree cavities and extracts analysed using gas... (More)
Osmoderma eremita is a threatened scarab beetle living in the hollows of old deciduous trees and is regarded as an umbrella species of the beetle fauna associated with this habitat. Several methods like pitfall trapping and wood mould sampling have been used to monitor the occurrence of O. eremita, but these methods cannot be applied for trees with certain characteristics. Recently, (R)-(+)--decalactone was identified as a male-produced sex pheromone of the species. Here, we show that -decalactone can be detected in hollow trees by air sampling and that the presence of the compound is strongly correlated with the occurrence of living male beetles in the same trees. Air was sampled from tree cavities and extracts analysed using gas chromatography–and mass spectrometry. There was a 89% match between the detection of -decalactone in extracts and the occurrence of male O. eremita±2 days from the sampling event. In the absence of males, samples never contained -decalactone, and the presence of this compound in a tree cavity appears to be a good predictor of O. eremita occupancy. Air sampling can be a useful complement to other methods when trying to detect as many trees housing this beetle as possible, which is crucial when estimating populations sizes and developing conservation strategies for this species. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Insect Conservation
volume
7
issue
4
pages
189 - 198
publisher
Springer
external identifiers
  • scopus:1842449565
ISSN
1366-638X
DOI
10.1023/B:JICO.0000020896.71333.f6
project
The PheroBio project (Pheromone monitoring of Biodiversity)
language
English
LU publication?
yes
id
0afe6ec7-609b-4d84-be4c-ce5244b3bf75 (old id 150709)
date added to LUP
2007-06-27 12:50:01
date last changed
2018-05-29 11:54:27
@article{0afe6ec7-609b-4d84-be4c-ce5244b3bf75,
  abstract     = {Osmoderma eremita is a threatened scarab beetle living in the hollows of old deciduous trees and is regarded as an umbrella species of the beetle fauna associated with this habitat. Several methods like pitfall trapping and wood mould sampling have been used to monitor the occurrence of O. eremita, but these methods cannot be applied for trees with certain characteristics. Recently, (R)-(+)--decalactone was identified as a male-produced sex pheromone of the species. Here, we show that -decalactone can be detected in hollow trees by air sampling and that the presence of the compound is strongly correlated with the occurrence of living male beetles in the same trees. Air was sampled from tree cavities and extracts analysed using gas chromatography–and mass spectrometry. There was a 89% match between the detection of -decalactone in extracts and the occurrence of male O. eremita±2 days from the sampling event. In the absence of males, samples never contained -decalactone, and the presence of this compound in a tree cavity appears to be a good predictor of O. eremita occupancy. Air sampling can be a useful complement to other methods when trying to detect as many trees housing this beetle as possible, which is crucial when estimating populations sizes and developing conservation strategies for this species.},
  author       = {Svensson, Glenn and Larsson, M C and Hedin, Jonas},
  issn         = {1366-638X},
  language     = {eng},
  number       = {4},
  pages        = {189--198},
  publisher    = {Springer},
  series       = {Journal of Insect Conservation},
  title        = {Air sampling of its pheromone to monitor the occurrence of <i>Osmoderma eremita</i>, a threatened beetle inhabiting hollow trees},
  url          = {http://dx.doi.org/10.1023/B:JICO.0000020896.71333.f6},
  volume       = {7},
  year         = {2003},
}