Effect of host density on searching behaviour of Nemeritis canescens (Hymenoptera: Ichneumonidae)

R. M. Cook, S. F. Hubbard

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Observations were made over one hour of individual parasites, N. canescens, searching for their hosts, larvae of the moth Plodia interpunctella, at five different host densities. Records were made of the total number of hosts encountered at each density, the total number of eggs laid and the handling time per host. Holling's disc equation was found to fit the data well and gave estimates for rate of parasite search (a) and handling time (b) close to values actually observed. Despite the good fit, rate of search and handling time both declined as host density increased. The time spent handling already parasitised hosts, "avoidance time" was found to be about half the value of handling time.

LanguageEnglish
Pages205-210
Number of pages6
JournalEntomologia Experimentalis et Applicata
Volume27
Issue number3
DOIs
Publication statusPublished - 1 May 1980

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Venturia (Hymenoptera)
searching behavior
Ichneumonidae
handling time
Hymenoptera
parasite
parasites
Plodia interpunctella
host seeking
functional response models
insect larvae
moth
effect
egg
larva

Keywords

  • N. canescens
  • Plodia interpunctella
  • parasite hosts
  • host density

Cite this

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Effect of host density on searching behaviour of Nemeritis canescens (Hymenoptera: Ichneumonidae). / Cook, R. M.; Hubbard, S. F.

In: Entomologia Experimentalis et Applicata, Vol. 27, No. 3, 01.05.1980, p. 205-210.

Research output: Contribution to journalArticle

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