IDEAS home Printed from https://ideas.repec.org/a/eee/ecomod/v201y2007i2p163-170.html
   My bibliography  Save this article

Outbreak suppression by predators depends on spatial distribution of prey

Author

Listed:
  • Bommarco, Riccardo
  • Firle, Sascha O.
  • Ekbom, Barbara

Abstract

The capacity of a predator population to suppress a prey population that varies in abundance and spatial distribution is explored in a lattice simulation model. The model is based on empirically derived parameters for particular species. Within season predation by Pterostichus cupreus (Coleoptera: Carabidae) of varying densities and distributions of the prey Rhopalosiphum padi (Homoptera: Aphididae) in spring cereals was simulated. From these spatially explicit simulations prey population suppression was found to be largely dependent on the spatial distribution of the prey. A possible mechanism was that high degrees of prey aggregation provided refuge for the prey that, when aggregated, escaped detection by P. cupreus. In contrast, P. cupreus was found to efficiently suppress incipient outbreaks for evenly distributed prey populations, even at high prey densities. A higher predator density compensated for the lowered control ability of the predators for highly aggregated prey populations and hastened the decline of the prey population.

Suggested Citation

  • Bommarco, Riccardo & Firle, Sascha O. & Ekbom, Barbara, 2007. "Outbreak suppression by predators depends on spatial distribution of prey," Ecological Modelling, Elsevier, vol. 201(2), pages 163-170.
    • Handle: RePEc:eee:ecomod:v:201:y:2007:i:2:p:163-170
    DOI: 10.1016/j.ecolmodel.2006.09.012
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0304380006004182
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.ecolmodel.2006.09.012?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Piñol, Josep & Espadaler, Xavier & Pérez, Nicolás & Beven, Keith, 2009. "Testing a new model of aphid abundance with sedentary and non-sedentary predators," Ecological Modelling, Elsevier, vol. 220(19), pages 2469-2480.
    2. Zhang, Wei & Swinton, Scott M., 2009. "Incorporating natural enemies in an economic threshold for dynamically optimal pest management," Ecological Modelling, Elsevier, vol. 220(9), pages 1315-1324.
    3. Jian, Fuji & Jayas, Digvir S. & White, Noel D.G. & Smith, E.A., 2008. "Numerical analysis and parameter estimation technique for insect population redistribution models," Ecological Modelling, Elsevier, vol. 211(1), pages 47-56.
    4. Ramanantoanina, A. & Hui, C. & Ouhinou, A., 2011. "Effects of density-dependent dispersal behaviours on the speed and spatial patterns of range expansion in predator–prey metapopulations," Ecological Modelling, Elsevier, vol. 222(19), pages 3524-3530.
    5. Su, Min & Hui, Cang & Zhang, Yanyu & Li, Zizhen, 2009. "How does the spatial structure of habitat loss affect the eco-epidemic dynamics?," Ecological Modelling, Elsevier, vol. 220(1), pages 51-59.
    6. de Souza, A.A. & Martins, S.G.F. & Zacarias, M.S., 2009. "Computer simulation applied to the biological control of the insect Aphis gossypii for the parasitoid Lysiphlebus testaceipes," Ecological Modelling, Elsevier, vol. 220(6), pages 756-763.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:ecomod:v:201:y:2007:i:2:p:163-170. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/ecological-modelling .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.