Behavioral response to larval tracks and the influence of tracks on intraguild scavenging by coccinellid larvae

Susan E. Moser, Kenneth F. Haynes, John J. Obrycki

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

A paired design was used to determine that Harmonia axyridis 4th instars were not influenced by the presence of conspecific larval tracks, but well-fed H. axyridis 4th instars spent less time on plants that contained tracks left by Coleomegilla maculata 4th instars. To determine if the presence of larval tracks influences intraguild scavenging by H. axyridis 4th instars, dead 4th instars were placed in Petri dishes that contained or did not contain larval tracks. The presence of larval tracks did not influence the feeding frequency or the amount of time before feeding. However, larvae dragged their pygopod on dish surfaces more frequently if the dish contained larval tracks. In addition, starved H. axyridis larvae were more likely to feed on the prey and dragged their pygopod less frequently than well-fed larvae.

Original languageEnglish
Pages (from-to)45-58
Number of pages14
JournalJournal of Insect Behavior
Volume23
Issue number1
DOIs
StatePublished - Jan 2010

Keywords

  • Chemical signaling
  • Competition
  • Foraging behavior
  • Interspecific interactions
  • Intraguild predation
  • Larval behavior

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Insect Science

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