Prediction of benthic community structure from environmental variables in a soft-sediment tidal basin (North Sea)
Puls, Walter and van Bernem, K.-H. and Eppel, D. and Kapitza, H. and Pleskachevsky, Andrey and Riethmüller, R. and Vaessen, B. (2011) Prediction of benthic community structure from environmental variables in a soft-sediment tidal basin (North Sea). Helgoland Marine Research, pp. 1-17. Springer. DOI: 10.1007/s10152-011-0275-y.
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The relationship between benthos data and environmental data in 308 samples collected from the intertidal zone of the Ho¨rnum tidal basin (German Wadden Sea) was analyzed. The environmental variables were current velocity, wave action, emersion time (all of which were obtained from a 2-year simulation with a numerical model) and four sediment grain-size parameters. A grouping of sample stations into five benthos clusters showed a largescale ([1 km) zoning of benthic assemblages on the tidal flats. The zoning varied with the distance from the shore. Three sample applications were examined to test the predictability of the benthic community structure based on environmental variables. In each application, the dataset was spatially partitioned into a training set and a test set. Predictions of benthic community structure in the test sets were attempted using a multinomial logistic regression model. Applying hydrodynamic predictors, the model performed significantly better than it did when sediment predictors were applied. The accuracy of model predictions, given by Cohen’s kappa, varied between 0.14 and 0.49. The model results were consistent with independently attained evidence of the important role of physical factors in Wadden Sea tidal flat ecology.
|Title:||Prediction of benthic community structure from environmental variables in a soft-sediment tidal basin (North Sea)|
|Date:||22 September 2011|
|Journal or Publication Title:||Helgoland Marine Research|
|In ISI Web of Science:||Yes|
|Page Range:||pp. 1-17|
|Series Name:||Helgoland Marine Research|
|Keywords:||benthos, environmental predictor variables, bottom shear stress, German Wadden Sea|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Space|
|HGF - Program Themes:||W EO - Erdbeobachtung|
|DLR - Research area:||Space|
|DLR - Program:||W EO - Erdbeobachtung|
|DLR - Research theme (Project):||W - Vorhaben Entwicklung und Erprobung von Verfahren zur Gewässerfernerkundung|
|Institutes and Institutions:||Remote Sensing Technology Institute > Marine Remote Sensing|
|Deposited By:||Bärbel Bolowski|
|Deposited On:||01 Dec 2011 15:29|
|Last Modified:||04 Apr 2013 16:32|
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