Harold Koopowitz

1.1k total citations
60 papers, 814 citations indexed

About

Harold Koopowitz is a scholar working on Ecology, Evolution, Behavior and Systematics, Molecular Biology and Cellular and Molecular Neuroscience. According to data from OpenAlex, Harold Koopowitz has authored 60 papers receiving a total of 814 indexed citations (citations by other indexed papers that have themselves been cited), including 34 papers in Ecology, Evolution, Behavior and Systematics, 32 papers in Molecular Biology and 27 papers in Cellular and Molecular Neuroscience. Recurrent topics in Harold Koopowitz's work include Planarian Biology and Electrostimulation (25 papers), Cephalopods and Marine Biology (20 papers) and Neurobiology and Insect Physiology Research (15 papers). Harold Koopowitz is often cited by papers focused on Planarian Biology and Electrostimulation (25 papers), Cephalopods and Marine Biology (20 papers) and Neurobiology and Insect Physiology Research (15 papers). Harold Koopowitz collaborates with scholars based in United States, South Africa and Australia. Harold Koopowitz's co-authors include Thierry Marchant, George C. Stone, Melinda Hauser, Kerry L. Bernardo, Richard G. Coss, Mark C. Andersen, Frederick J. Wrona, D. W. Ewer, Joseph Arditti and Robert J. Griesbach and has published in prestigious journals such as Nature, Science and Trends in Neurosciences.

In The Last Decade

Harold Koopowitz

60 papers receiving 760 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Harold Koopowitz United States 19 436 317 292 273 125 60 814
J. Reiß Germany 15 119 0.3× 136 0.4× 184 0.6× 217 0.8× 57 0.5× 59 718
Maria Reuter Finland 24 698 1.6× 413 1.3× 496 1.7× 241 0.9× 298 2.4× 60 1.3k
John Jellies United States 17 288 0.7× 273 0.9× 610 2.1× 66 0.2× 117 0.9× 45 844
Jillian Henss United States 5 370 0.8× 267 0.8× 83 0.3× 105 0.4× 175 1.4× 6 796
Hugo Aréchigá Mexico 23 251 0.6× 189 0.6× 988 3.4× 77 0.3× 378 3.0× 74 1.4k
Kurt Hamdorf Germany 21 315 0.7× 238 0.8× 767 2.6× 74 0.3× 138 1.1× 50 1.0k
Ulrich Smola Germany 17 174 0.4× 228 0.7× 414 1.4× 55 0.2× 93 0.7× 41 656
Charles D. Drewes United States 16 121 0.3× 85 0.3× 162 0.6× 90 0.3× 132 1.1× 36 544
Gerard Jacobs South Africa 10 264 0.6× 178 0.6× 40 0.1× 363 1.3× 194 1.6× 30 851
M. Reuter Finland 13 308 0.7× 180 0.6× 166 0.6× 105 0.4× 164 1.3× 22 534

Countries citing papers authored by Harold Koopowitz

Since Specialization
Citations

This map shows the geographic impact of Harold Koopowitz'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 Harold Koopowitz with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Harold Koopowitz more than expected).

Fields of papers citing papers by Harold Koopowitz

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Harold Koopowitz. 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 Harold Koopowitz. The network helps show where Harold Koopowitz may publish in the future.

Co-authorship network of co-authors of Harold Koopowitz

This figure shows the co-authorship network connecting the top 25 collaborators of Harold Koopowitz. A scholar is included among the top collaborators of Harold Koopowitz 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 Harold Koopowitz. Harold Koopowitz 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
1.
Koopowitz, Harold, et al.. (2017). Paphiopedilum myanmaricum, a new species of slipper orchid (Cypripedioideae, Orchidaceae). Phytotaxa. 324(1). 2 indexed citations
2.
Koopowitz, Harold, et al.. (2017). Nomenclatural notes on some autumn flowering daffodils (Narcissus, Amaryllidaceae). Phytotaxa. 297(2). 3 indexed citations
3.
Koopowitz, Harold & Bradford A. Hawkins. (2012). Global climate change is confounding species conservation strategies. Integrative Zoology. 7(2). 158–164. 9 indexed citations
4.
Alarcón, Rubén, et al.. (1998). Population ecology of Dudleya multicaulis (Crassulaceae); a rare narrow endemic.. Madroño; a West American journal of botany. 45(3). 215–220. 4 indexed citations
5.
Koopowitz, Harold & Thierry Marchant. (1998). Postpollination nectar reabsorption in the African epiphyte Aerangis verdickii (Orchidaceae). American Journal of Botany. 85(4). 508–512. 38 indexed citations
6.
Wrona, Frederick J. & Harold Koopowitz. (1998). Behavior of the rhabdocoel flatworm Mesostoma ehrenbergii in prey capture and feeding. Hydrobiologia. 383(1-3). 35–40. 19 indexed citations
7.
Koopowitz, Harold, et al.. (1996). In vivo visualization of living flatworm neurons using Lucifer yellow intracellular injections. Journal of Neuroscience Methods. 69(1). 83–89. 4 indexed citations
8.
Elvin, Mark & Harold Koopowitz. (1994). Neuroanatomy of the rhabdocoel flatworm Mesostoma ehrenbergii (focke, 1836). I. Neuronal diversity in the brain. The Journal of Comparative Neurology. 343(2). 319–331. 8 indexed citations
9.
Koopowitz, Harold, et al.. (1993). Chloroplast DNA and the determination of species status in the Disa tripetaloides complex (Orchidaceae), and its relationships to three species Racemosae, section Disa. Biochemical Systematics and Ecology. 21(8). 799–808. 4 indexed citations
10.
Koopowitz, Harold, et al.. (1985). Nerve repair and behavioral recovery following brain transplantation in Notoplana acticola, a polyclad flatworm. Journal of Experimental Zoology. 235(2). 157–173. 4 indexed citations
11.
Koopowitz, Harold, et al.. (1984). Long-term Storage of Gladiolus Pollen. HortScience. 19(4). 513–514. 10 indexed citations
12.
Koopowitz, Harold, et al.. (1981). Neuromuscular control systems in the proboscis ofParanemertes peregrina. Marine Behaviour and Physiology. 7(4). 331–343. 2 indexed citations
13.
Koopowitz, Harold, et al.. (1980). Neuronal repair and avoidance behavior in the flatworm, Notoplana acticola. Journal of Neurobiology. 11(5). 483–496. 14 indexed citations
14.
Koopowitz, Harold, et al.. (1979). Primitive nervous systems: Action of aminergic drugs and blocking agents on activity in the ventral nerve cord of the flatworm Notoplana acticola. Journal of Neurobiology. 10(4). 397–407. 22 indexed citations
15.
Koopowitz, Harold, et al.. (1976). The ultrastructural organization of the visual system of the wax moth, Galleria mellonella: The retina. Cell and Tissue Research. 174(4). 519–31. 5 indexed citations
16.
Koopowitz, Harold, et al.. (1976). The ultrastructural organization of the visual system of the wax moth, Galleria mellonella: The optic tract. Cell and Tissue Research. 174(4). 1 indexed citations
17.
Hill, B. J. & Harold Koopowitz. (1975). Heart-rate of the crab Scylla serrata (Forskal) in air and in hypoxic conditions. Comparative Biochemistry and Physiology Part A Physiology. 52(2). 385–387. 9 indexed citations
18.
Koopowitz, Harold, David L. Silver, & Greg Rose. (1975). Neuronal plasticity and recovery of function in a polyclad flatworm. Nature. 256(5520). 737–738. 13 indexed citations
19.
Koopowitz, Harold, et al.. (1975). Ultrastructure of nerve plexus in flatworms. Cell and Tissue Research. 157(2). 27 indexed citations
20.
Stone, George C. & Harold Koopowitz. (1974). Mechanisms of action of CO2 on the visual response of Galleria mellonella. Journal of Insect Physiology. 20(3). 485–496. 9 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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