J. H. O’Keeffe

4.5k total citations · 2 hit papers
37 papers, 3.5k citations indexed

About

J. H. O’Keeffe is a scholar working on Ecology, Nature and Landscape Conservation and Water Science and Technology. According to data from OpenAlex, J. H. O’Keeffe has authored 37 papers receiving a total of 3.5k indexed citations (citations by other indexed papers that have themselves been cited), including 24 papers in Ecology, 23 papers in Nature and Landscape Conservation and 12 papers in Water Science and Technology. Recurrent topics in J. H. O’Keeffe's work include Fish Ecology and Management Studies (23 papers), Hydrology and Sediment Transport Processes (13 papers) and Freshwater macroinvertebrate diversity and ecology (12 papers). J. H. O’Keeffe is often cited by papers focused on Fish Ecology and Management Studies (23 papers), Hydrology and Sediment Transport Processes (13 papers) and Freshwater macroinvertebrate diversity and ecology (12 papers). J. H. O’Keeffe collaborates with scholars based in South Africa, Netherlands and United States. J. H. O’Keeffe's co-authors include Rebecca E. Tharme, Carolyn G. Palmer, Andrew T. Warner, Robert B. Jacobson, Mary C. Freeman, Jonathan G. Kennen, Mike Acreman, Kevin H. Rogers, Julian D. Olden and Angela H. Arthington and has published in prestigious journals such as Biological Conservation, Freshwater Biology and Hydrobiologia.

In The Last Decade

J. H. O’Keeffe

37 papers receiving 3.2k citations

Hit Papers

Measuring Biological Diversity 2004 2026 2011 2018 2004 2009 400 800 1.2k
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Measuring Biological Diversity
    2004 1.3k citations J. H. O’Keeffe African Journal of Aquatic Science profile →
  2. The ecological limits of hydrologic alteration (ELOHA): a new framework for developing regional environmental flow standards
    2009 1.2k citations N. LeRoy Poff, Brian D. Richter et al. Freshwater Biology profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
J. H. O’Keeffe South Africa 23 2.0k 1.8k 1.2k 643 336 37 3.5k
Barbara J. Downes Australia 34 3.1k 1.6× 2.2k 1.2× 420 0.4× 780 1.2× 450 1.3× 96 4.1k
Karl M. Wantzen Germany 31 2.0k 1.0× 1.4k 0.8× 620 0.5× 720 1.1× 243 0.7× 92 3.7k
Bradley J. Pusey Australia 41 3.0k 1.5× 3.6k 2.0× 1.3k 1.1× 1.1k 1.7× 140 0.4× 112 5.3k
Stefan Schmutz Austria 38 3.5k 1.8× 3.3k 1.8× 1.3k 1.1× 631 1.0× 107 0.3× 123 5.1k
Sonja C. Jähnig Germany 37 2.8k 1.4× 2.3k 1.2× 947 0.8× 667 1.0× 417 1.2× 102 4.3k
Simon Linke Australia 38 2.9k 1.5× 2.4k 1.3× 807 0.7× 1.4k 2.2× 314 0.9× 103 4.8k
John L. Sabo United States 36 3.8k 1.9× 2.9k 1.6× 819 0.7× 1.3k 2.1× 948 2.8× 91 5.8k
Jeffrey J. Duda United States 29 2.0k 1.0× 1.4k 0.7× 508 0.4× 477 0.7× 171 0.5× 80 2.8k
Christian K. Feld Germany 34 3.2k 1.6× 2.6k 1.4× 1.0k 0.9× 1.4k 2.2× 550 1.6× 78 5.7k
Charles C. Coutant United States 26 1.9k 0.9× 2.3k 1.2× 623 0.5× 981 1.5× 140 0.4× 84 3.3k

Countries citing papers authored by J. H. O’Keeffe

Since Specialization
Citations

This map shows the geographic impact of J. H. O’Keeffe's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by J. H. O’Keeffe with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites J. H. O’Keeffe more than expected).

Fields of papers citing papers by J. H. O’Keeffe

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by J. H. O’Keeffe. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by J. H. O’Keeffe. The network helps show where J. H. O’Keeffe may publish in the future.

Co-authorship network of co-authors of J. H. O’Keeffe

This figure shows the co-authorship network connecting the top 25 collaborators of J. H. O’Keeffe. A scholar is included among the top collaborators of J. H. O’Keeffe based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with J. H. O’Keeffe. J. H. O’Keeffe is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
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O’Keeffe, J. H., et al.. (2018). Coping with water supply interruptions: can citizen voice in transdisciplinary research make a difference?. Water International. 43(5). 603–619. 10 indexed citations
4.
O’Keeffe, J. H., et al.. (2017). Stakeholder‐enhanced environmental flow assessment: The Rufiji Basin case study in Tanzania. River Research and Applications. 35(5). 520–528. 9 indexed citations
5.
Bowen, James, et al.. (2016). Adhesion of Pseudomonas fluorescens biofilms to glass, stainless steel and cellulose. Biotechnology Letters. 38(5). 787–792. 7 indexed citations
6.
Smakhtin, Vladimir, et al.. (2013). Including cultural water requirements in environmental flow assessment: an example from the upper Ganga River, India. Water International. 39(1). 81–96. 38 indexed citations
7.
O’Keeffe, J. H.. (2013). Rivers, time and conservation, especially in developing countries. Aquatic Conservation Marine and Freshwater Ecosystems. 23(2). 184–188. 6 indexed citations
8.
O’Keeffe, J. H.. (2012). Sustainable Use of South Africa's Inland Waters. African Journal of Aquatic Science. 37(3). 351–353. 7 indexed citations
9.
Poff, N. LeRoy, Brian D. Richter, Angela H. Arthington, et al.. (2009). The ecological limits of hydrologic alteration (ELOHA): a new framework for developing regional environmental flow standards. Freshwater Biology. 55(1). 147–170. 1208 indexed citations breakdown →
10.
Rowntree, Kate, et al.. (2000). THE DEVELOPMENT OF A GEOMORPHOLOGICAL CLASSIFICATION SYSTEM FOR THE LONGITUDINAL ZONATION OF SOUTH AFRICAN RIVERS. South African Geographical Journal. 82(3). 163–172. 23 indexed citations
11.
O’Keeffe, J. H., et al.. (1997). VARIABILITY IN THE INVERTEBRATE FAUNA OF AN INTERMITTENT STREAM OVER THREE CONSECUTIVE MIDSUMMER PERIODS. 23(2). 55–79. 8 indexed citations
12.
O’Keeffe, J. H., et al.. (1997). Simple Words and Fuzzy Zones: Early Directions for Temporary River Research in South Africa. Environmental Management. 21(4). 517–531. 94 indexed citations
13.
14.
Palmer, Carolyn G., Anthony R. Palmer, J. H. O’Keeffe, & R. W. Palmer. (1994). Macroinvertebrate community structure and altitudinal changes in the upper reaches of a warm temperate southern African river. Freshwater Biology. 32(2). 337–347. 20 indexed citations
15.
Palmer, Carolyn G., J. H. O’Keeffe, Anthony R. Palmer, Timothy T. Dunne, & Sarah E. Radloff. (1993). Macroinvertebrate functional feeding groups in the middle and lower reaches of the Buffalo River, eastern Cape, South Africa. I. Dietary variability. Freshwater Biology. 29(3). 441–453. 59 indexed citations
16.
Palmer, Carolyn G. & J. H. O’Keeffe. (1992). Feeding patterns of four macroinvertebrate taxa in the headwaters of the Buffalo River, eastern Cape. Hydrobiologia. 228(2). 157–173. 22 indexed citations
17.
O’Keeffe, J. H. & B. R. Davies. (1991). Conservation and management of the rivers of the Kruger National Park: Suggested methods for calculating instream flow needs. Aquatic Conservation Marine and Freshwater Ecosystems. 1(1). 55–71. 18 indexed citations
18.
Palmer, R. W. & J. H. O’Keeffe. (1990). Downstream effects of impoundments on the water chemistry of the Buffalo River (Eastern Cape), South Africa. Hydrobiologia. 202(1-2). 71–83. 29 indexed citations
19.
Palmer, R. W. & J. H. O’Keeffe. (1990). Downstream effects of impoundments on the water chemistry of the Buffalo River (Eastern Cape), South Africa. Hydrobiologia. 202(1-2). 71–83. 24 indexed citations
20.
Palmer, R. W. & J. H. O’Keeffe. (1990). Transported material in a small river with multiple impoundments. Freshwater Biology. 24(3). 563–575. 18 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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