D. H. Janzen

5.3k total citations · 4 hit papers
17 papers, 4.1k citations indexed

About

D. H. Janzen is a scholar working on Ecology, Evolution, Behavior and Systematics, Insect Science and Genetics. According to data from OpenAlex, D. H. Janzen has authored 17 papers receiving a total of 4.1k indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Ecology, Evolution, Behavior and Systematics, 4 papers in Insect Science and 2 papers in Genetics. Recurrent topics in D. H. Janzen's work include Hymenoptera taxonomy and phylogeny (2 papers), Plant and animal studies (2 papers) and Botanical Research and Chemistry (2 papers). D. H. Janzen is often cited by papers focused on Hymenoptera taxonomy and phylogeny (2 papers), Plant and animal studies (2 papers) and Botanical Research and Chemistry (2 papers). D. H. Janzen collaborates with scholars based in United States. D. H. Janzen's co-authors include Gerald A. Rosenthal, C. C. Wilcock, Robert H. MacArthur, John Henry van der Meer, C. Ronald Carroll, Rodolfo Dirzo, Deborah K. Letourneau, Pedro Barbosa, Michael J. Sharkey and Carlos E. Sarmiento and has published in prestigious journals such as Science, Journal of Ecology and Journal of Applied Ecology.

In The Last Decade

D. H. Janzen

17 papers receiving 3.6k citations

Hit Papers

align trajectories

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.

Herbivores. Their Interaction with Secondary Plant Metabolites.

1981 1.6k citations C. C. Wilcock, Gerald A. Rosenthal et al. Journal of Ecology profile →
Geographical Ecology: Patterns in the Distribution of Species.

1973 1.3k citations D. H. Janzen, John Henry van der Meer et al. Journal of Ecology profile →
Ecology of Foraging by Ants

1973 470 citations C. Ronald Carroll, D. H. Janzen Annual Review of Ecology and Systematics profile →
Herbivores. Their Interaction with Secondary Plant Metabolites.

1981 398 citations Rodolfo Dirzo, Gerald A. Rosenthal et al. Journal of Applied Ecology profile →

Peers

D. H. Janzen

EEBS

ECOLO

IS

PS

NLC

Nora Underwood United States

Gregory D. Martinsen United States

Nancy E. Stamp United States

Paul Feeny United States

Thomas M. Lewinsohn Brazil

Gina M. Wimp United States

William J. Boecklen United States

David R. Klein United States

Jennifer A. Lau United States

Beryl B. Simpson United States

Nora Underwood United States

D. H. Janzen

1.7k ×0.9

EEBS

1.1k ×0.9

ECOLO

1.1k ×0.9

IS

959 ×0.8

PS

1.3k ×1.2

NLC

Citations per year, relative to D. H. Janzen D. H. Janzen (= 1×) peers Nora Underwood

Countries citing papers authored by D. H. Janzen

Since Specialization

Citations

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

Fields of papers citing papers by D. H. Janzen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by D. H. Janzen. 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 D. H. Janzen. The network helps show where D. H. Janzen may publish in the future.

Co-authorship network of co-authors of D. H. Janzen

This figure shows the co-authorship network connecting the top 25 collaborators of D. H. Janzen. A scholar is included among the top collaborators of D. H. Janzen 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 D. H. Janzen. D. H. Janzen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

17 of 17 papers shown

1.

Sarmiento, Carlos E., Michael J. Sharkey, & D. H. Janzen. (2004). The First Gregarious Species of the Agathidinae (Hymenoptera: Braconidae). Journal of Hymenoptera Research. 13. 295–301. 7 indexed citations

2.

Solís, M. Alma, Jon J. Sullivan, & D. H. Janzen. (2000). Cromarcha stroudagnesia, a new chrysaugine species boring in shoots of Tabebuia ochracea (Bignoniaceae) in a Costa Rica dry forest (Lepidoptera: Pyralidae: Chrysauginae).. Tropical lepidoptera research. 11. 33–39. 5 indexed citations

3.

Sharkey, Michael J. & D. H. Janzen. (1995). Review of the world species of Sigalphus (Hymenoptera: Braconidae: Sigalphinae) and biology of Sigalphus romeroi, new species. Biodiversity Heritage Library (Smithsonian Institution). 14 indexed citations

4.

Janzen, D. H., Pedro Barbosa, & Deborah K. Letourneau. (1989). Novel Aspects of Insect-Plant Interactions.. Journal of Ecology. 77(4). 1188–1188. 265 indexed citations

5.

Janzen, D. H.. (1988). In Reply: CO2 Reduction and Reforestation. Science. 242(4885). 1493–1493. 1 indexed citations

6.

Janzen, D. H.. (1987). Forest Restoration in Costa Rica. Science. 235(4784). 15c–16c. 1 indexed citations

7.

Janzen, D. H.. (1986). Science Is Forever. Oikos. 46(3). 281–281. 7 indexed citations

8.

Janzen, D. H.. (1986). Lost Plants. Oikos. 46(2). 129–129. 4 indexed citations

9.

Schmid, Rudolf, et al.. (1986). The Botany and Natural History of Panama: La Botanica e historia natural de Panama. Taxon. 35(2). 444–444. 3 indexed citations

10.

Janzen, D. H., et al.. (1985). Costa Rican Natural History. Taxon. 34(1). 169–169. 21 indexed citations

11.

Janzen, D. H.. (1983). Insects at carrion and dung. 6 indexed citations

12.

Janzen, D. H.. (1982). Simulation of Andira fruit pulp removal by bats reduces seed predation by Cleogonus weevils. 10 indexed citations

13.

Dirzo, Rodolfo, Gerald A. Rosenthal, & D. H. Janzen. (1981). Herbivores. Their Interaction with Secondary Plant Metabolites.. Journal of Applied Ecology. 18(1). 327–327. 398 indexed citations breakdown →

14.

Wilcock, C. C., Gerald A. Rosenthal, & D. H. Janzen. (1981). Herbivores. Their Interaction with Secondary Plant Metabolites.. Journal of Ecology. 69(1). 347–347. 1566 indexed citations breakdown →

15.

Janzen, D. H.. (1977). Why are there so many species of insects. 20 indexed citations

16.

Carroll, C. Ronald & D. H. Janzen. (1973). Ecology of Foraging by Ants. Annual Review of Ecology and Systematics. 4(1). 231–257. 470 indexed citations breakdown →

17.

Janzen, D. H., John Henry van der Meer, & Robert H. MacArthur. (1973). Geographical Ecology: Patterns in the Distribution of Species.. Journal of Ecology. 61(2). 621–621. 1324 indexed citations breakdown →

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.

Explore authors with similar magnitude of impact