Loss of intraspecific aggression in the success of a widespread invasive social insect

David A. Holway, Andrew V. Suarez, Ted J. Case

Research output: Contribution to journalArticle

Abstract

Despite the innumerable ecological problems and large economic costs associated with biological invasions, the proximate causes of invasion success are often poorly understood. Here, evidence is provided that reduced intraspecific aggression and the concomitant abandonment of territorial behavior unique to introduced populations of the Argentine ant contribute to the elevated population densities directly responsible for its widespread success as an invader. In the laboratory, nonaggressive pairs of colonies experienced lower mortality and greater foraging activity relative to aggressive pairs. These differences translated into higher rates of resource retrieval, greater brood production, and larger worker populations.

Original languageEnglish (US)
Pages (from-to)949-952
Number of pages4
JournalScience
Volume282
Issue number5390
DOIs
StatePublished - Oct 30 1998
Externally publishedYes

ASJC Scopus subject areas

  • General

Fingerprint Dive into the research topics of 'Loss of intraspecific aggression in the success of a widespread invasive social insect'. Together they form a unique fingerprint.

  • Cite this