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Plant size-variation in conjunction with number of neighbours may be an indicator of competition symmetry

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  • Salinas, Hugo
  • Veneklaas, Erik J
  • Trevenen, Elizabeth J
  • Renton, Michael

Abstract

Plant competition can be classified as symmetric when resource acquisition is proportional to plant size, or asymmetric when it is not. Identifying the symmetry of competition has important applications for population management. Many of the approaches that have been used to do this involve measuring growth over time, or through controlled experiments. An approach that uses measurements from a single point in time would be convenient. It is expected that populations under asymmetric competition will be more variable in plant size than those under symmetric competition, thus size variation at a single time could be an indicator of competition symmetry. However, other factors can also affect size variation, and thus it is critical to assess in which conditions size variation could be a good predictor of competition symmetry.

Suggested Citation

  • Salinas, Hugo & Veneklaas, Erik J & Trevenen, Elizabeth J & Renton, Michael, 2026. "Plant size-variation in conjunction with number of neighbours may be an indicator of competition symmetry," Ecological Modelling, Elsevier, vol. 513(C).
    • Handle: RePEc:eee:ecomod:v:513:y:2026:i:c:s030438002500417x
    DOI: 10.1016/j.ecolmodel.2025.111431
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