Nom du corpus

Corpus Systématique Animale

Titre du document

Temporal clumping of bark beetle arrival at pheromone traps: Modeling anemotaxis in chaotic plumes

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • Orientation
  • attraction
  • odor-modulated anemotaxis
  • pheromone plumes
  • casting
  • simulation models
  • Coleoptera
  • Scolytidae
  • Lepidoptera
  • Anemotaxis
Nom du fichier dans la ressource
Insectes_v2b_01246
Auteur(s)
  • John A. Byers
Affiliation(s)
  • Department of Plant Protection, Chemical Ecology Swedish University of Agricultural Sciences, S-230 53, Alnarp, Sweden
Résumé

The sequence of arrival of the bark beetlesIps typographus andPityogenes chalcographus (Coleoptera: Scolytidae) at traps baited with their synthetic pheromones was monitored with a portable fraction collector. Histograms of the natural arrival patterns of both species were nonrandom and clumped at shorter time scales (1-, 2-, 4-, 5-, or 6-min cells) but appeared random at larger time scales (10, 20 or 30 min). Monte Carlo generation of similar histograms showed them to be random at all of these time scales. A stochastic computer model could graphically simulate insect orientation to odor sources based on present theories of odor-modulated anemotaxis and casting. Although this model was used throughout, since it assumes only that insects cast perpendicular to the current wind direction, a second model could slightly improve orientation success. However, the second model requires that the insect remember its ground path (upwind) prior to losing the plume (after an abrupt wind direction change). The effects of casting and flight parameters on orientation success and randomness of arrival sequence within various plumes were determined by simulation. Similarly, the effects of random walks in plume direction, plume width, and wind speed were explored. The results showed that dynamic random variations in plume direction and especially wind speed could cause an otherwise random arrival sequence (e.g., under constant wind) to become clumped and nonrandom. Therefore, the clumped arrival patterns of bark beetles and other insects, includingSpodoptera litura, at pheromone sources could result from random-walk fluctuations in wind speed and wind direction.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - biology
  • 3 - entomology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
Catégories Scopus
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Biochemistry
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Ecology, Evolution, Behavior and Systematics
  • 1 - Health Sciences ; 2 - Medicine ; 3 - General Medicine
Catégories WoS
  • 1 - science ; 2 - ecology
  • 1 - science ; 2 - biochemistry & molecular biology
Identifiant ISTEX
725FEF3E12B1F387E948DB8D800995A2068FBD20
Revue

Journal of Chemical Ecology

Année de publication
1996
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
9.976
Sous-corpus
  • Insectes
Type de publication
Journal
ark:/67375/1BB-9QF8S3B5-D
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