Acoustically‐orienting parasitoids in calling and silent males of the field cricket Teleogryllus oceanicus

MARLENE ZUK, LEIGH W. SIMMONS, JOHN T. ROTENBERRY

Research output: Contribution to journalArticlepeer-review

49 Scopus citations

Abstract

Abstract. On three Hawaiian Islands, the introduced Australasian field cricket Teleogryllus oceanicus Le Guillou (Orthoptera: Gryllidae) was found to be attacked by the phonotactic parasitoid tachinid fly, Ormia ochracea Bigot. Noncalling males occurred with callers in all locations, but silent males were more heavily parasitized than callers. Body size was unrelated to both calling status and the likelihood of harbouring parasitoid larvae. An experiment examining the likelihood of calling in the laboratory by males collected as silent or calling individuals showed no difference between the two classes of males, after accounting for parasitoid levels; males harbouring larvae were less likely to call.

Original languageEnglish (US)
Pages (from-to)380-383
Number of pages4
JournalEcological Entomology
Volume20
Issue number4
DOIs
StatePublished - Nov 1995

Keywords

  • Ormia ochracea
  • Teleogryllus oceanicus
  • field crickets
  • phonotactic parasitoids

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