Du är här

Appetitive flight patterns of male Agrotis segetum moths over landscape scales

Författare:
Publiceringsår: 2007
Språk: Engelska
Sidor: 141-149
Publikation/Tidskrift/Serie: Journal of Theoretical Biology
Volym: 245
Nummer: 1
Dokumenttyp: Artikel
Förlag: Elsevier

Sammanfattning

An analysis is presented of the first harmonic radar studies of pheromone-plume locating flights of male Agrotis segetum moths over distances of up to 500m. Upon release most moths flew in a direction having a downwind component. The first significant changes in flight orientations occur in the immediate vicinity of a pheromone source. Moths that were initially flying downwind change course and start flying crosswind whilst those that initially flew crosswind change course and start flying upwind. It is shown that such behaviour is consistent with the adoption of an effective plume-location strategy, and conditions are identified when downwind flights would be more advantageous than crosswind ones. Additionally, some of the complex flight patterns that can arise at later times are shown to be compatible with the adoption of an optimal biased scale-free (Levy-flight) searching strategy. It is found that disruptive doses of sex pheromone can have a marked influence upon male moth flight patterns.

Disputation

Nyckelord

  • Biology and Life Sciences
  • Pheromone plumes
  • Noctuidae
  • Agrotis segetum
  • Lepidoptera
  • Casting
  • Lévy flights

Övriga

Published
Yes
  • Pheromone Group
  • ISSN: 0022-5193

Box 117, 221 00 LUND
Telefon 046-222 00 00 (växel)
Telefax 046-222 47 20
lu [at] lu [dot] se

 

Fakturaadress: Box 188, 221 00 LUND
Organisationsnummer: 202100-3211
Om webbplatsen