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Attraction of the larval predator Elater ferrugineus to the sex pheromone of its prey, Osmoderma eremita and its implication for conservation biology

Svensson, Glenn LU ; Larsson, MC and Hedin, Jonas LU (2004) In Journal of Chemical Ecology 30(2). p.353-363
Abstract
Elater ferrugineus is a threatened click beetle inhabiting old hollow trees. Its larvae consume larvae of other saproxylic insects including the threatened scarab beetle Osmoderma eremita. Recently, (R)-(+)-gamma-decalactone was identified as a male-produced sex pheromone of O. eremita. Here we present evidence that E. ferrugineus adults use this odor as a kairomone for location of their prey. In field trapping experiments, significantly more trapping events of E. ferrugineus beetles were observed in Lindgren funnel traps baited with (R)-(+)-gamma-decalactone than in control traps (20 vs. 1, respectively). Analyses of headspace collections from E. ferrugineus beetles indicate that the predator itself does not produce the substance. Both... (More)
Elater ferrugineus is a threatened click beetle inhabiting old hollow trees. Its larvae consume larvae of other saproxylic insects including the threatened scarab beetle Osmoderma eremita. Recently, (R)-(+)-gamma-decalactone was identified as a male-produced sex pheromone of O. eremita. Here we present evidence that E. ferrugineus adults use this odor as a kairomone for location of their prey. In field trapping experiments, significantly more trapping events of E. ferrugineus beetles were observed in Lindgren funnel traps baited with (R)-(+)-gamma-decalactone than in control traps (20 vs. 1, respectively). Analyses of headspace collections from E. ferrugineus beetles indicate that the predator itself does not produce the substance. Both sexes were attracted to the prey pheromone, suggesting that E. ferrugineus males use the odor as an indirect cue for location of mates or of the tree hollows, which make up their habitat. When compared to pitfall traps, the Lindgren system was significantly more effective in trapping E. ferrugineus, and no difference could be established for O: eremita, showing the high potential to use odor-based systems to catch both species. We suggest that (R)-(+)-gamma-decalactone could be used as a master signal in monitoring programs for these vulnerable beetle species, which are both regarded as indicators of the associated insect fauna of the threatened habitat of old hollow trees. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Chemical Ecology
volume
30
issue
2
pages
353 - 363
publisher
Springer
external identifiers
  • pmid:15112729
  • wos:000189311400008
  • scopus:1842452971
ISSN
1573-1561
DOI
10.1023/B:JOEC.0000017982.51642.8c
project
The PheroBio project (Pheromone monitoring of Biodiversity)
language
English
LU publication?
yes
id
83e6bcfc-db5d-49e8-9860-90a228e78f27 (old id 135865)
date added to LUP
2007-06-27 12:45:39
date last changed
2017-11-19 04:11:59
@article{83e6bcfc-db5d-49e8-9860-90a228e78f27,
  abstract     = {Elater ferrugineus is a threatened click beetle inhabiting old hollow trees. Its larvae consume larvae of other saproxylic insects including the threatened scarab beetle Osmoderma eremita. Recently, (R)-(+)-gamma-decalactone was identified as a male-produced sex pheromone of O. eremita. Here we present evidence that E. ferrugineus adults use this odor as a kairomone for location of their prey. In field trapping experiments, significantly more trapping events of E. ferrugineus beetles were observed in Lindgren funnel traps baited with (R)-(+)-gamma-decalactone than in control traps (20 vs. 1, respectively). Analyses of headspace collections from E. ferrugineus beetles indicate that the predator itself does not produce the substance. Both sexes were attracted to the prey pheromone, suggesting that E. ferrugineus males use the odor as an indirect cue for location of mates or of the tree hollows, which make up their habitat. When compared to pitfall traps, the Lindgren system was significantly more effective in trapping E. ferrugineus, and no difference could be established for O: eremita, showing the high potential to use odor-based systems to catch both species. We suggest that (R)-(+)-gamma-decalactone could be used as a master signal in monitoring programs for these vulnerable beetle species, which are both regarded as indicators of the associated insect fauna of the threatened habitat of old hollow trees.},
  author       = {Svensson, Glenn and Larsson, MC and Hedin, Jonas},
  issn         = {1573-1561},
  language     = {eng},
  number       = {2},
  pages        = {353--363},
  publisher    = {Springer},
  series       = {Journal of Chemical Ecology},
  title        = {Attraction of the larval predator <i>Elater ferrugineus</i> to the sex pheromone of its prey, <i>Osmoderma eremita</i> and its implication for conservation biology},
  url          = {http://dx.doi.org/10.1023/B:JOEC.0000017982.51642.8c},
  volume       = {30},
  year         = {2004},
}