Intrinsic inter- and intraspecific competition in parasitoid wasps

J.A. Harvey, E.H. Poelman, T. Tanaka

Research output: Contribution to journalArticleAcademicpeer-review

165 Citations (Scopus)

Abstract

Immature development of parasitoid wasps is restricted to resources found in a single host that is often similar in size to the adult parasitoid. When two or more parasitoids of the same or different species attack the same host, there is competition for monopolization of host resources. The success of intrinsic competition differs between parasitoids attacking growing hosts and parasitoids attacking paralyzed hosts. Furthermore, the evolution of gregarious development in parasitoids reflects differences in various developmental and behavioral traits, as these influence antagonistic encounters among immature parasitoids. Fitness-related costs (or benefits) of competition for the winning parasitoid reveal that time lags between successive attacks influence the outcome of competition. Physiological mechanisms used to exclude competitors include physical and biochemical factors that originate with the ovipositing female wasp or her progeny. In a broader multitrophic framework, indirect factors, such as plant quality, may affect parasitoids through effects on immunity and nutrition.
Original languageEnglish
Pages (from-to)333-351
JournalAnnual Review of Entomology
Volume58
DOIs
Publication statusPublished - 2013

Keywords

  • lepidoptera larvae compete
  • interspecific competition
  • heliothis-virescens
  • endoparasitoid wasps
  • insect parasitoids
  • biological-control
  • heteronomous hyperparasitoids
  • gregarious development
  • campoletis-sonorensis
  • microplitis-croceipes

Fingerprint

Dive into the research topics of 'Intrinsic inter- and intraspecific competition in parasitoid wasps'. Together they form a unique fingerprint.

Cite this