J. H. O’Keeffe

The ecological limits of hydrologic alteration (ELOHA): a new framework for developing regional environmental flow standards

N. LeRoy Poff, Brian D. Richter, Angela H. Arthington et al. · Freshwater Biology · 2009 · 1.6K citations · Full text

Environmental Flow, Hydrological Science, River Basin Management +14

Measuring Biological Diversity

J. H. O’Keeffe · African Journal of Aquatic Science · 2004 · 1.5K citations

Engineering, Natural Diversity, Biological Diversity +17

Simple Words and Fuzzy Zones: Early Directions for Temporary River Research in South Africa

Mandy C. Uys, J. H. O’Keeffe · Environmental Management · 1997 · 113 citations

Simple Words, River Basin Management, Engineering +10

Changes in the physico‐chemistry and benthic invertebrates of the great fish river, South Africa, following an interbasin transfer of water

J. H. O’Keeffe, F. C. de Moor · Regulated Rivers Research & Management · 1988 · 100 citations

Hydrobiology, Engineering, Orange River +13

Macroinvertebrate functional feeding groups in the middle and lower reaches of the Buffalo River, eastern Cape, South Africa. I. Dietary variability

Carolyn G. Palmer, J. H. O’Keeffe, Anthony R. Palmer et al. · Freshwater Biology · 1993 · 76 citations

Biology, Instar Larvae, Aquatic Food System +12