Biological Invasions

, Volume 8, Issue 3, pp 501–507 | Cite as

Linking Temporal and Spatial Scales in the Study of an Argentine Ant Invasion

  • Nicole E. Heller
  • Nathan J. Sanders
  • Deborah M. Gordon
Article

Abstract

Our long-term study of an invasion of Argentine ants (Linepithema humile) in a 481-ha biological preserve in Northern California links multiple spatial and temporal scales. We have investigated, at local spatial scales of tens of meters, how nests spread and contract seasonally and from year to year. Microsatellite analysis shows population genetic structure on the scale of about 100 m. At the landscape scale, we have surveyed the spread and impact of Argentine ants in the biological preserve since 1993, and have found high variability both seasonally and from year to year. Here, we describe how seasonal patterns in nesting behavior at the local scale help to explain how the location of the invasion edge changes. Thus, the growth and spread of nests on the scale of tens of meters, from season to season, produce the dynamics of the invasion from year to year at the scale of hundreds of meters.

Keywords

colony invasion edge invasive species Linepithema humile long-term nest spread supercolony 

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Copyright information

© Springer 2006

Authors and Affiliations

  • Nicole E. Heller
    • 1
  • Nathan J. Sanders
    • 2
  • Deborah M. Gordon
    • 1
  1. 1.Department of Biological SciencesStanford UniversityStanfordUSA
  2. 2.Department of Ecology and Evolutionary BiologyUniversity of TennesseeKnoxvilleUSA

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