Functional composition of benthic macroinvertebrate fauna in the plateau rivers, Bundelkhand, central India

A.S. Mishra, P. Nautiyal


The functional organization of benthic macroinvertebrate fauna was studied in two central Indian rivers of Bundelkhand region, the Ken and Tons. Both the rivers are approximately 320km from source to mouth. The taxonomic richness in both the rivers decreased in the mouth zone of the river. Functionally, both rivers were in heterotrophic state from headwater to mouth, as share of collectors among other functional groups was high all along the river. However, the share of collectors decreased from the headwater to mouth in both the rivers, while scrapers and predators increased in the Ken but no trend was evident in the Tons.

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