Behaviour of male pine sawflies, Neodiprion sertifer , released downwind from pheromone sources

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

This study investigated the behaviour of male European pine sawflies, Neodiprion sertifer Geoffroy (Hym., Diprionidae), that were released and observed downwind from pheromone traps baited with 100 mu g of the sex pheromone, (2S,3S,7S)-3,7-dimethyl-2-pentadecyl acetate. Releases were done at three distances; either at 5 m from one trap, or at 50 or 200 m from five traps, placed in a line perpendicular to the current wind direction. As control, males were released identically but without any pheromone source present. The behaviour of the males prior to take-off was studied. A total of 1729 males were released, and 80% of them took flight. Males took off significantly faster in the presence of pheromone. Grooming was significantly more frequent in presence of pheromone compared with control. In all pheromone experiments significantly more males displayed grooming, wing fanning and take-off towards the wind compared with the control. Weather data was simultaneously collected at the study site. Wing fanning was negatively correlated with wind speed. Grooming was not influenced by wind speed. Reduced levels of incoming short-wave radiation lowered the take-off frequency significantly. Pheromone-induced behaviour in diprionids seems to be less distinct than in other insects, e.g., Lepidoptera.

Detaljer

Författare
Enheter & grupper
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Zoologi
  • Naturgeografi
  • Biologiska vetenskaper
Originalspråkengelska
Sidor (från-till)119-128
TidskriftEntomologia Experimentalis et Applicata
Volym95
Utgivningsnummer2
StatusPublished - 2000
PublikationskategoriForskning
Peer review utfördJa

Relaterad forskningsoutput

Östrand, F., 2000, Department of Ecology, Lund University. 125 s.

Forskningsoutput: AvhandlingDoktorsavhandling (sammanläggning)

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Related projects

Erling Jirle & Olle Anderbrant

1988/01/012016/12/31

Projekt: Forskning

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