Biodiversity: towards a unifying theme for river ecology

摘要: 1. A broadened concept of biodiversity, encompassing spatio-temporal heterogeneity, functional processes and species diversity, could provide a unifying theme for river ecology. 2. The theoretical foundations stream ecology often do not reflect fully the crucial roles spatial complexity fluvial dynamics in natural ecosystems, which has hindered conceptual advances effectiveness efforts at conservation restoration. 3. Inclusion surface waters (lotic lentic), subsurface (hyporheic phreatic), riparian systems (in both constrained floodplain reaches), ecotones between them (e.g. springs) as interacting components contributing to total is developing holistic framework rivers ecosystems. 4. Measures including alpha, beta gamma are result disturbance history, resource partitioning, habitat fragmentation successional phenomena across riverine landscape. A hierarchical approach diversity altered river-floodplain ecosystems will enhance understanding ecological operating different scales along multidimensional environmental gradients. 5. Re-establishing hydrologic processes) active corridor serve focus initiatives. Once have been reconstituted, heterogeneity increase, followed by corresponding increases aquatic biota.