Are large-scale flow experiments informing the science and management of freshwater ecosystems?
Frontiers in Ecology and the Environment
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Abstract
Greater scientific knowledge, changing societal values, and legislative mandates have emphasized the importance of implementing large-scale flow experiments (FEs) downstream of dams. We provide the first global assessment of FEs to evaluate their success in advancing science and informing management decisions. Systematic review of 113 FEs across 20 countries revealed that clear articulation of experimental objectives, while not universally practiced, was crucial for achieving management outcomes and changing dam-operating policies. Furthermore, changes to dam operations were three times less likely when FEs were conducted primarily for scientific purposes. Despite the recognized importance of riverine flow regimes, four-fifths of FEs involved only discrete flow events. Over three-quarters of FEs documented both abiotic and biotic outcomes, but only one-third examined multiple taxonomic responses, thus limiting how FE results can inform holistic dam management. Future FEs will present new opportunities to advance scientifically credible water policies.
Suggested Citation
Olden, J., Konrad, C.P., Melis, T., Kennard, M.J., Freeman, M., Mims, M.C., Bray, E., Gido, K., Hemphill, N.P., Lytle, D.A., McMullen, L.E., Pyron, M., Robinson, C.T., Schmidt, J.C., and Williams, J.G., 2013, Are large-scale flow experiments informing the science and management of freshwater ecosystems?: Frontiers in Ecology and the Environment, v. 12, no. 3, p. 176-185, https://doi.org/10.1890/130076.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Are large-scale flow experiments informing the science and management of freshwater ecosystems? |
| Series title | Frontiers in Ecology and the Environment |
| DOI | 10.1890/130076 |
| Volume | 12 |
| Issue | 3 |
| Publication Date | February 11, 2014 |
| Year Published | 2013 |
| Language | English |
| Publisher | Ecological Society of America |
| Publisher location | Washington, D.C. |
| Contributing office(s) | Forest and Rangeland Ecosystem Science Center, Washington Water Science Center |
| Description | 10 p. |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Frontiers in Ecology and the Environment |
| First page | 176 |
| Last page | 185 |