Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
Science. 1998 Oct 30;282(5390):949-52.

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

Author information

  • 1Department of Biology, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA.

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.

PMID:
9794767
[PubMed - as supplied by publisher]
Free full text
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Icon for HighWire
    Loading ...
    Write to the Help Desk