Time-Domain Analysis of the Male Courtship Songs Produced by Wild, Mass-Reared, and by Irradiated Melon Flies, Dacus cucurbitae COQUILLETT (Diptera : Tephritidae)

• KANMIYA Kenkichi

  Biological Laboratory, Kurume University

• TANAKA Akira

  Oshima Branch, Kagoshima Agricultural Experiment Station (Present address)Kagoshima Agricultural Experiment Station

• KAMIWADA Hidemi

  Oshima Branch, Kagoshima Agricultural Experiment Station (Present address)Osumi Branch, Kagoshima Agricultural Experiment Station

• NAKAGAWA Kohjin

  Melon Fly Eradication Project Office, Kagoshima Prefectural Government (Present address)Osumi Branch, Kagoshima Agricultural Experiment Station

• NISHIOKA Toshihiko

  Melon Fly Eradication Project Office, Kagoshima Prefectural Government (Present address)Hokusatsu Plant Protection Office

Abstract

Temporal parameters of male courtship songs produced by wild (W-), mass-reared (M-), and by irradiated (I-) strains of Dacus cucurbitae COQUILETT were examined. The pulse-train duration (PTD), the pulse-train interval (PTI), and the pulse-train period (PTP) that appeared during calling and courtship sounds were measured. Only the PTI showed leptokurtic distribution, and appeared to be concentrated within 0.10-0.30 sec compared to the PTD and the PTP. The peak of the average block occupation rates of the PTI was 0.15-0.20 sec in the M- and I-strains (except for age 32 days), and 0.15-0.20 sec for ages 22 and 32 days and 0.20-0.25 sec for ages 17 and 27 days in the W-strain. In the M- and I-strains 69-94% of the highest two peaks of the total PTI were 0.10-0.25 sec long, but in the W-strain (except for age 22 days) 85-92% of those were 0.15-0.30 sec long. The laboratory-reared strains shortened their PTI by 0.05 sec compared to that of the wild strain. The concentration of the PTI values may be due to the PTI being a cue for attracting females. The presence of temporal difference in the PTI between the wild and laboratory-reared strains explains it to be an effective parameter for the estimation of qualitative characteristics.

Journal

• Applied entomology and zoology

  Applied entomology and zoology 22 (2), 181-194, 1987-05-25

  Japanese Society of Applied Entomology and Zoology

Details

• CRID: 1572824501749698816
• NII Article ID: 110001104145
• NII Book ID: AA00543238
• ISSN: 00036862
• Text Lang: en
• Data Source:
  • CiNii Articles