Drift responses of benthic invertebrates to experimental streamflow variation in a hydrologically stable stream

N.L. Poff, J.V. Ward

    Research output: Contribution to journalArticlepeer-review

    104 Citations (Scopus)


    Taxa with typical nocturnal peaks in drift activity (Baetis spp., Epeorus longimanus, Triznaka signata) generally maintained this pattern despite some increases in diurnal drift. For a few taxa, modification of diel drift patterns occurred, either as nocturnal decreases following reduced flow (Paraleptophlebia heteronea, Ephemerella infrequens) or as diurnal drift increases in response to either elevated flow (Lepidostoma ormea, Chironomidae larvae) or reduced flow (Simuliidae). -from Authors
    Original languageUndefined
    Pages (from-to)1926-1936
    Number of pages11
    JournalCanadian Journal of Fisheries and Aquatic Sciences
    Issue number10
    Publication statusPublished - 1991

    Cite this