Hampshire Avon
Demonstration Test Catchment (DTC) Project

Hampshire Avon Demonstration Test Catchment (DTC) Project
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Dr Iwan Jones

Iwan is a freshwater ecologist seeking to advance understanding of freshwater ecosystems such that they can be better protected and managed sustainably in a changing environment. He heads the River Communities Group, based at the FBA River Laboratory in Dorset. Iwan works with invertebrate, algal, and plant communities in both running and standing waters, and develops practical applications for assessing the impacts of land use and other human activities upon them.

The work of the River Communities Group involves the development of new Water Framework Directive compliant tools for assessing lake, stream and deep river communities, with particular reference to the quantification of uncertainty in assessments. The group are also involved in projects that aim to understand more fully the relationship between community structure and ecosystem functioning, and have conducted large scale experiments manipulating a well-characterised and quantified food web, for which they have highly-resolved data, by first introducing an additional predator to the top of the web and subsequently by altering the availability and quality of the food at the base of the web.