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Dynamic riverine landscapes: the role of ecosystem engineers (co-organized)
Oral Programme
 / Fri, 27 Apr, 08:30–10:00  / Room 21
Poster Programme
 / Attendance Fri, 27 Apr, 15:30–17:00  / Hall XL

Research on fluvial processes and landforms is increasingly emphasising the ecosystem engineering role played by aquatic biota in driving morphodynamics, habitat complexity and biodiversity in riverine landscapes at various spatio-temporal scales. Ecosystem engineers, including aquatic and riparian vegetation, invertebrates and mammals, may initiate and maintain morphological complexity in pristine or semi-natural systems, and may have the capacity to assist morphological recovery, with minimal intervention, within degraded systems. In contrast, invasive species can represent a considerable system disturbance in affected catchments, with implications for hydrogeomorphological processes and biodiversity. Improved understanding of two-way interactions between the biotic and abiotic components of riverine landscape is vital, particularly within the context of the significant and increasing pressures on fluvial systems arising from a combination of factors, including climatic change, anthropogenic interventions and invasive species.

This session invites contributions on the role of ecosystem engineers (aquatic/riparian vegetation/animals) in driving fluvial processes and landform dynamics. Research may be laboratory or field-based, or may involve the analysis of remotely-sensed data. Contributions are welcomed on various river styles and degrees of management intervention (e.g. pristine, semi-natural or degraded systems), and scales of interest may vary from the patch-scale to the catchment scale, and from diurnal cycles to longer-term (decadal +) system dynamics.
Solicited people: Angela Gurnell, Paolo Perona, Stephen Rice.