Jan L�fqvist

1.2k total citations
18 papers, 999 citations indexed

About

Jan L�fqvist is a scholar working on Insect Science, Ecology and Ecology, Evolution, Behavior and Systematics. According to data from OpenAlex, Jan L�fqvist has authored 18 papers receiving a total of 999 indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Insect Science, 10 papers in Ecology and 4 papers in Ecology, Evolution, Behavior and Systematics. Recurrent topics in Jan L�fqvist's work include Insect and Pesticide Research (16 papers), Forest Insect Ecology and Management (10 papers) and Insect-Plant Interactions and Control (7 papers). Jan L�fqvist is often cited by papers focused on Insect and Pesticide Research (16 papers), Forest Insect Ecology and Management (10 papers) and Insect-Plant Interactions and Control (7 papers). Jan L�fqvist collaborates with scholars based in Sweden, Hungary and Bulgaria. Jan L�fqvist's co-authors include Gunnar Bergstr�m, Fredrik Schlyter, John A. Byers, G�ran Birgersson, Christer L�fstedt, Boel Lanne, Bill S. Hansson, Monica Appelgren, C. Rikard Unelius and Göran Birgersson and has published in prestigious journals such as Journal of Chemical Ecology, Die Naturwissenschaften and Journal of Pest Science.

In The Last Decade

Jan L�fqvist

18 papers receiving 930 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Jan L�fqvist Sweden 15 889 644 249 196 104 18 999
L. J. Chong Canada 21 899 1.0× 784 1.2× 177 0.7× 152 0.8× 171 1.6× 29 1.0k
G�ran Birgersson Sweden 10 602 0.7× 555 0.9× 110 0.4× 85 0.4× 78 0.8× 10 677
J. H. Borden Canada 19 803 0.9× 696 1.1× 145 0.6× 244 1.2× 204 2.0× 41 1.0k
L. L. Sower United States 16 627 0.7× 170 0.3× 241 1.0× 225 1.1× 165 1.6× 52 715
Damon J. Crook United States 18 991 1.1× 875 1.4× 147 0.6× 259 1.3× 180 1.7× 41 1.2k
G. G. Grant Canada 24 1.4k 1.6× 750 1.2× 432 1.7× 506 2.6× 265 2.5× 88 1.7k
Anna R. Levinson Germany 19 650 0.7× 207 0.3× 137 0.6× 180 0.9× 367 3.5× 67 891
Janet R. West United States 14 447 0.5× 291 0.5× 151 0.6× 142 0.7× 76 0.7× 17 564
Tetsuya Yasuda Japan 20 1.1k 1.2× 405 0.6× 279 1.1× 523 2.7× 304 2.9× 76 1.3k
Lee C. Ryker United States 17 504 0.6× 561 0.9× 178 0.7× 181 0.9× 39 0.4× 36 677

Countries citing papers authored by Jan L�fqvist

Since Specialization
Citations

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

Fields of papers citing papers by Jan L�fqvist

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Jan L�fqvist. 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 Jan L�fqvist. The network helps show where Jan L�fqvist may publish in the future.

Co-authorship network of co-authors of Jan L�fqvist

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

All Works

18 of 18 papers shown
1.
Schlyter, Fredrik, et al.. (2004). A new microassay for antifeedants in Hylobius pine weevils (Coleoptera). Journal of Pest Science. 77(4). 191–195. 12 indexed citations
2.
Witzgall, Peter, Jean‐Pierre Chambon, Marie Bengtsson, et al.. (1996). Sex pheromones and attractants in the Eucosmini and Grapholitini (Lepidoptera, Tortricidae). Chemoecology. 7(1). 13–23. 41 indexed citations
3.
Witzgall, Peter, Marie Bengtsson, C. Rikard Unelius, & Jan L�fqvist. (1993). Attraction of pea mothCydia nigricana F. (Lepidoptera: Tortricidae) to female sex pheromone (E,E)-8,10-dodecadien-1-YL acetate, is inhibited by geometric isomersE,Z, Z,E, andZ,Z. Journal of Chemical Ecology. 19(9). 1917–1928. 33 indexed citations
4.
Bergstr�m, Gunnar, Ann‐Britt Wassgren, Abraham Hefetz, et al.. (1992). Species-specific, two-component, volatile signals in two sympatric ant-lion species:Synclysis baetica andAcanthaclisis occitanica (Neuroptera, Myrmeleontidae). Journal of Chemical Ecology. 18(7). 1177–1188. 13 indexed citations
5.
Hansson, Bill S., et al.. (1990). Pheromone variation among eastern European and a western Asian population of the turnip mothAgrotis segetum. Journal of Chemical Ecology. 16(5). 1611–1622. 68 indexed citations
6.
Byers, John A., G�ran Birgersson, Jan L�fqvist, Monica Appelgren, & Gunnar Bergstr�m. (1990). Isolation of pheromone synergists of bark beetle,Pityogenes chalcographus, from complex insect-plant odors by fractionation and subtractive-combination bioassay. Journal of Chemical Ecology. 16(3). 861–876. 48 indexed citations
7.
Byers, John A., et al.. (1989). Structure-activity studies on aggregation pheromone components ofPityogenes chalcographus (Coleoptera: Scolytidae). Journal of Chemical Ecology. 15(2). 685–695. 29 indexed citations
8.
Birgersson, G�ran, Fredrik Schlyter, Gunnar Bergstr�m, & Jan L�fqvist. (1988). Individual variation in aggregation pheromone content of the bark beetle,Ips typographus. Journal of Chemical Ecology. 14(9). 1737–1761. 66 indexed citations
9.
Byers, John A., Göran Birgersson, Jan L�fqvist, & Gunnar Bergstr�m. (1988). Synergistic pheromones and monoterpenes enable aggregation and host recognition by a bark beetle. Die Naturwissenschaften. 75(3). 153–155. 62 indexed citations
10.
Schlyter, Fredrik, John A. Byers, & Jan L�fqvist. (1987). Attraction to pheromone sources of different quantity, quality, and spacing: Density-regulation mechanisms in bark beetleIps typographus. Journal of Chemical Ecology. 13(6). 1503–1523. 102 indexed citations
11.
L�fstedt, Christer, et al.. (1987). Repeatability of pheromone emissions from individual female ermine mothsYponomeuta padellus andYponomeuta rorellus. Journal of Chemical Ecology. 13(6). 1431–1441. 31 indexed citations
12.
Schlyter, Fredrik, G�ran Birgersson, John A. Byers, Jan L�fqvist, & Gunnar Bergstr�m. (1987). Field response of spruce bark beetle,Ips typographus, to aggregation pheromone candidates. Journal of Chemical Ecology. 13(4). 701–716. 104 indexed citations
13.
Hansson, Bill S., Christer L�fstedt, Jan L�fqvist, & Eric Hallberg. (1986). Spatial arrangement of different types of pheromone-sensitive sensilla in a male moth. Die Naturwissenschaften. 73(5). 269–270. 35 indexed citations
14.
Byers, John A., Boel Lanne, Jan L�fqvist, Fredrik Schlyter, & Gunnar Bergstr�m. (1985). Olfactory recognition of host-tree susceptibility by pine shoot beetles. Die Naturwissenschaften. 72(6). 324–326. 139 indexed citations
15.
L�fstedt, Christer, Boel Lanne, Jan L�fqvist, Monica Appelgren, & Gunnar Bergstr�m. (1985). Individual variation in the pheromone of the turnip moth,Agrotis segetum. Journal of Chemical Ecology. 11(9). 1181–1196. 37 indexed citations
16.
Birgersson, G�ran, Fredrik Schlyter, Jan L�fqvist, & Gunnar Bergstr�m. (1984). Quantitative variation of pheromone components in the spruce bark beetleIps typographus from different attack phases. Journal of Chemical Ecology. 10(7). 1029–1055. 147 indexed citations
17.
L�fqvist, Jan & Gunnar Bergstr�m. (1980). Volatile communication substances in Dufour's gland of virgin females and old queens of the antFormica polyctena. Journal of Chemical Ecology. 6(2). 309–320. 18 indexed citations
18.
Bergstr�m, Gunnar, et al.. (1979). trans-Perillenal a furanoid monoterpene from pine saw-fly,Neodiprion sertifer (Hymenoptera: Diprionidae). Journal of Chemical Ecology. 5(3). 309–319. 14 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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