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Where is the worm? Predictive modelling of the habitat preferences of the tube-building polychaete Lanice conchilega

Author

Listed:
  • Willems, Wouter
  • Goethals, Peter
  • Van den Eynde, Dries
  • Van Hoey, Gert
  • Van Lancker, Vera
  • Verfaillie, Els
  • Vincx, Magda
  • Degraer, Steven

Abstract

Grab samples to monitor the distribution of marine macrobenthic species (animals >1mm, living in the sand) are time consuming and give only point based information. If the habitat preference of a species can be modelled, the spatial distribution can be predicted on a full coverage scale from the environmental variables. The modelling techniques Generalized Linear Models (GLM) and Artificial Neural Networks (ANN) were compared in their ability to predict the occurrence of Lanice conchilega, a common tube-building polychaete along the North-western European coastline. Although several types of environmental variables were in the data set (granulometric, currents, nutrients) only three granulometric variables were used in the final models (median grain-size, % mud and % coarse fraction). ANN slightly outperformed GLM for a number of performance indicators (% correct predictions, specificity and sensitivity), but the GLM were more robust in the crossvalidation procedure.

Suggested Citation

  • Willems, Wouter & Goethals, Peter & Van den Eynde, Dries & Van Hoey, Gert & Van Lancker, Vera & Verfaillie, Els & Vincx, Magda & Degraer, Steven, 2008. "Where is the worm? Predictive modelling of the habitat preferences of the tube-building polychaete Lanice conchilega," Ecological Modelling, Elsevier, vol. 212(1), pages 74-79.
    • Handle: RePEc:eee:ecomod:v:212:y:2008:i:1:p:74-79
    DOI: 10.1016/j.ecolmodel.2007.10.017
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    Cited by:

    1. Holguin-Gonzalez, Javier E. & Boets, Pieter & Alvarado, Andres & Cisneros, Felipe & Carrasco, María C. & Wyseure, Guido & Nopens, Ingmar & Goethals, Peter L.M., 2013. "Integrating hydraulic, physicochemical and ecological models to assess the effectiveness of water quality management strategies for the River Cuenca in Ecuador," Ecological Modelling, Elsevier, vol. 254(C), pages 1-14.

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