Robert Karl Johnson

529 total citations
33 papers, 440 citations indexed

About

Robert Karl Johnson is a scholar working on Nature and Landscape Conservation, Aquatic Science and Global and Planetary Change. According to data from OpenAlex, Robert Karl Johnson has authored 33 papers receiving a total of 440 indexed citations (citations by other indexed papers that have themselves been cited), including 23 papers in Nature and Landscape Conservation, 17 papers in Aquatic Science and 10 papers in Global and Planetary Change. Recurrent topics in Robert Karl Johnson's work include Fish Biology and Ecology Studies (17 papers), Ichthyology and Marine Biology (16 papers) and Marine and fisheries research (9 papers). Robert Karl Johnson is often cited by papers focused on Fish Biology and Ecology Studies (17 papers), Ichthyology and Marine Biology (16 papers) and Marine and fisheries research (9 papers). Robert Karl Johnson collaborates with scholars based in United States and Japan. Robert Karl Johnson's co-authors include David W. Greenfield, John S. Stephens, William F. Smith‐Vaniz, John E. McCosker, Richard J. Wassersug, Edmund S. Hobson, John W. Gilbert, Muneo Okiyama, Lloyd T. Findley and David B. Harris and has published in prestigious journals such as The Journal of the Acoustical Society of America, Ecological Monographs and Copeia.

In The Last Decade

Robert Karl Johnson

30 papers receiving 350 citations

Peers

Robert Karl Johnson
Atila E. Gosztonyi Argentina
Ricardo G Perrotta Argentina
Robert J. Lavenberg United States
Janice D. Fechhelm United States
Tetsuo Iwami Japan
Elbert H. Ahlstrom United States
Fernando Cervigón Venezuela
Robert Patzner Austria
Muneo Okiyama Japan
Kenji Gushima Japan
Atila E. Gosztonyi Argentina
Robert Karl Johnson
Citations per year, relative to Robert Karl Johnson Robert Karl Johnson (= 1×) peers Atila E. Gosztonyi

Countries citing papers authored by Robert Karl Johnson

Since Specialization
Citations

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

Fields of papers citing papers by Robert Karl Johnson

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Robert Karl Johnson. 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 Robert Karl Johnson. The network helps show where Robert Karl Johnson may publish in the future.

Co-authorship network of co-authors of Robert Karl Johnson

This figure shows the co-authorship network connecting the top 25 collaborators of Robert Karl Johnson. A scholar is included among the top collaborators of Robert Karl Johnson 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 Robert Karl Johnson. Robert Karl Johnson 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.
Gilbert, John W., et al.. (2007). Imaging in the position that causes pain. Surgical Neurology. 69(5). 463–465. 10 indexed citations
2.
Gilbert, John W., et al.. (2006). Upright weight-bearing cervical flexion/extension dynamic magnetic resonance imaging: Case report and review of the literature. European Journal of Radiology Extra. 60(3). 121–124. 7 indexed citations
3.
Greenfield, David W. & Robert Karl Johnson. (1999). Assemblage Structure and Habitat Associations of Western Caribbean Gobies (Teleostei: Gobiidae). Copeia. 1999(2). 251–251. 20 indexed citations
4.
Johnson, Robert Karl, David B. Harris, & G. W. Hedstrom. (1993). Efficient evaluation of narrow-band spatial ambiguity functions. The Journal of the Acoustical Society of America. 93(4). 1995–2004.
5.
Johnson, Robert Karl. (1991). The fishes of the family Giganturidae : systematics, development, distribution and aspects of biology. Medical Entomology and Zoology. 91. 1–45. 15 indexed citations
6.
Greenfield, David W. & Robert Karl Johnson. (1990). Community Structure of Western Caribbean Blennioid Fishes. Copeia. 1990(2). 433–433. 41 indexed citations
7.
Johnson, Robert Karl, et al.. (1984). A new species of Vinciguerria (Salmoniformes, Photichthyidae) from the Red Sea and Gulf of Aqaba, with comments on the depauperacy of the Red Sea mesopelagic fish fauna /. Bulletin of Miscellaneous Information (Royal Gardens Kew). 5 indexed citations
8.
9.
Johnson, Robert Karl. (1982). Fishes of the families Evermannellidae and Scopelarchidae : systmatics, morphology, interrelationships, and zoogeography. Bulletin of Miscellaneous Information (Royal Gardens Kew). 35 indexed citations
10.
11.
Johnson, Robert Karl, et al.. (1978). Geographic distribution: Pseudoeurycea scandans. Herpetological review. 9(1). 21. 2 indexed citations
12.
Johnson, Robert Karl & William F. Smith‐Vaniz. (1978). The Saber-Toothed Blennies, Tribe Nemophini (Pisces: Blenniidae). Copeia. 1978(1). 193–193. 40 indexed citations
13.
Wassersug, Richard J. & Robert Karl Johnson. (1976). A remarkable pyloric caecum in the evermannellid genus Coccorella with notes on gut structure and function in alepisauroid fishes (Pisces, Myctophiformes). Journal of Zoology. 179(2). 273–289. 20 indexed citations
14.
15.
Johnson, Robert Karl. (1974). A revision of the alepisauroid family Scopelarchidae Pisces, Myctophiformes / Robert Karl Johnson.. Field Museum of Natural History eBooks. 18 indexed citations
16.
Johnson, Robert Karl, et al.. (1973). Children’s discrimination learning as related to delayed punishment. Bulletin of the Psychonomic Society. 2(3). 146–148. 1 indexed citations
17.
Johnson, Robert Karl. (1970). A Second Record of Korsogaster nanus Parr (Beryciformes: Korsogasteridae). Copeia. 1970(4). 758–758. 2 indexed citations
18.
Stephens, John S., et al.. (1970). The Comparative Ecology of Three Sympatric Species of California Blennies of the Genus Hypsoblennius gill (Teleostomi, Blenniidae). Ecological Monographs. 40(2). 213–233. 74 indexed citations
19.
Johnson, Robert Karl. (1969). A Review of the Fish Genus Kali (Perciformes: Chiasmodontidae). Copeia. 1969(2). 386–386. 5 indexed citations
20.

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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