Spatial Autocorrelation and Fractal Dimension of Alga Species Assemblage in a Gravel Stream of Central Europe.

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Authors	KOMÁREK Ondřej
Year of publication	2003
Type	Article in Periodical
Magazine / Source	Internat. Rev. Hydrobiol.
MU Faculty or unit	Faculty of Science
Citation
Field	Ecology
Keywords	periphyton; sampling; rivers; autocorrelation; fractal
Description	The relationship of benthic diatom species to sampling scale was studied in two Moravian rivers that differ in substrate and discharge. Number of cells per mm2 of each species was used for statistical analysis. The distribution of abundance of benthic algae follows a fractal pattern, because it exhibits the same detail over a continuum of scales. DCA first axis score, variogram and fractal dimension were used for spatial autocorrelation estimation. The fractal dimensions obtained are generally close to 2, implying weak spatial dependence.
Related projects:	The impact of hydrological conditions in streams on top bottom and hyporheic biota Quantification, diversity and structure of benthic algal communities in rivers Spatiotemporal biodiversity dynamics in ecosystems of Central Europe