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Biological invasion and biological control select for different life histories

Author

Listed:
  • Ashraf Tayeh

    (UMR CBGP, INRA)

  • Ruth A. Hufbauer

    (Graduate Degree Program in Ecology, Colorado State University)

  • Arnaud Estoup

    (UMR CBGP, INRA)

  • Virginie Ravigné

    (UMR BGPI, CIRAD
    UMR Peuplements Végétaux et Bioagresseurs en Milieu Tropical, CIRAD-Université de la Réunion, Pôle de Protection des Plantes)

  • Léa Frachon

    (UMR CBGP, INRA
    INRA, Laboratoire des Interactions Plantes-Microorganismes (LIPM), UMR441
    CNRS, Laboratoire des Interactions Plantes-Microorganismes (LIPM), UMR2594)

  • Benoit Facon

    (UMR CBGP, INRA
    UMR Peuplements Végétaux et Bioagresseurs en Milieu Tropical, CIRAD-Université de la Réunion, Pôle de Protection des Plantes)

Abstract

Biological invaders have long been hypothesized to exhibit the fast end of the life-history spectrum, with early reproduction and a short lifespan. Here, we examine the rapid evolution of life history within the harlequin ladybird Harmonia axyridis. The species, once used as a biological control agent, is now a worldwide invader. We show that biocontrol populations have evolved a classic fast life history during their maintenance in laboratories. Invasive populations also reproduce earlier than native populations, but later than biocontrol ones. Invaders allocate more resources to reproduction than native and biocontrol individuals, and their reproduction is spread over a longer lifespan. This life history is best described as a bet-hedging strategy. We assert that invasiveness cannot be explained only by invoking faster life histories. Instead, the evolution of life history within invasive populations can progress rapidly and converge to a fine-tuned evolutionary match between the invaded environment and the invader.

Suggested Citation

  • Ashraf Tayeh & Ruth A. Hufbauer & Arnaud Estoup & Virginie Ravigné & Léa Frachon & Benoit Facon, 2015. "Biological invasion and biological control select for different life histories," Nature Communications, Nature, vol. 6(1), pages 1-5, November.
    • Handle: RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms8268
    DOI: 10.1038/ncomms8268
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    Cited by:

    1. Yang, Yinghui & Han, Bang-Sheng & Wang, Qin, 2019. "Spatiotemporal landscape disturbance contributes to the suppression of competing invaders," Ecological Modelling, Elsevier, vol. 393(C), pages 76-84.

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