P. Bernhardt Koch

1.1k total citations
30 papers, 771 citations indexed

About

P. Bernhardt Koch is a scholar working on Cellular and Molecular Neuroscience, Ecology, Evolution, Behavior and Systematics and Genetics. According to data from OpenAlex, P. Bernhardt Koch has authored 30 papers receiving a total of 771 indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Cellular and Molecular Neuroscience, 16 papers in Ecology, Evolution, Behavior and Systematics and 15 papers in Genetics. Recurrent topics in P. Bernhardt Koch's work include Neurobiology and Insect Physiology Research (20 papers), Plant and animal studies (10 papers) and Insect and Arachnid Ecology and Behavior (9 papers). P. Bernhardt Koch is often cited by papers focused on Neurobiology and Insect Physiology Research (20 papers), Plant and animal studies (10 papers) and Insect and Arachnid Ecology and Behavior (9 papers). P. Bernhardt Koch collaborates with scholars based in Germany, Netherlands and United Kingdom. P. Bernhardt Koch's co-authors include Paul M. Brakefield, Richard H. ffrench‐Constant, Fanja Kesbeke, Detlef Bückmann, Klaus H. Hoffmann, Ulrike Lorenz, H. Frederik Nijhout, Michael B. Blackburn, Sean B. Carroll and Thomas A. Rocheleau and has published in prestigious journals such as American Journal of Psychiatry, Development and Current Biology.

In The Last Decade

P. Bernhardt Koch

29 papers receiving 728 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
P. Bernhardt Koch Germany 17 459 454 415 143 77 30 771
Yoram Yerushalmi Israel 10 322 0.7× 376 0.8× 528 1.3× 212 1.5× 91 1.2× 15 740
Margaret C. Bloch Qazi United States 13 582 1.3× 566 1.2× 245 0.6× 280 2.0× 58 0.8× 14 870
Konrad Schmidt Germany 15 364 0.8× 396 0.9× 368 0.9× 103 0.7× 69 0.9× 24 661
Charles Noirot France 12 850 1.9× 942 2.1× 348 0.8× 462 3.2× 134 1.7× 17 1.3k
Laura W. Grunert United States 8 204 0.4× 216 0.5× 295 0.7× 118 0.8× 86 1.1× 8 520
Teiya Kijimoto United States 14 280 0.6× 315 0.7× 140 0.3× 184 1.3× 120 1.6× 24 631
Pieter J Wijngaarden Netherlands 7 281 0.6× 296 0.7× 154 0.4× 43 0.3× 68 0.9× 7 531
Thomas H. Day United Kingdom 21 594 1.3× 575 1.3× 104 0.3× 149 1.0× 209 2.7× 42 1.2k
Yasukazu Okada Japan 21 574 1.3× 616 1.4× 305 0.7× 377 2.6× 173 2.2× 58 1.1k
Viviane Callier United States 13 256 0.6× 307 0.7× 360 0.9× 204 1.4× 334 4.3× 31 886

Countries citing papers authored by P. Bernhardt Koch

Since Specialization
Citations

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

Fields of papers citing papers by P. Bernhardt Koch

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by P. Bernhardt Koch. 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 P. Bernhardt Koch. The network helps show where P. Bernhardt Koch may publish in the future.

Co-authorship network of co-authors of P. Bernhardt Koch

This figure shows the co-authorship network connecting the top 25 collaborators of P. Bernhardt Koch. A scholar is included among the top collaborators of P. Bernhardt Koch 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 P. Bernhardt Koch. P. Bernhardt Koch 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.
Sehested, Jakob, Christian Jørgensen, Spencer R. Mortensen, et al.. (2004). Effect of oral α-tocopherol and zinc on plasmastatus, IGF-I levels, weight gain and immuneresponse in young calves. Journal of Animal and Feed Sciences. 13(Suppl. 1). 609–612. 1 indexed citations
2.
Steigenga, Marc J., et al.. (2004). Butterfly Selected Lines Explore the Hormonal Basis of Interactions between Life Histories and Morphology. The American Naturalist. 163(5). E76–E87. 30 indexed citations
3.
Sawada, Hiroshi, et al.. (2002). Hormonal control of GTP cyclohydrolase I gene expression and enzyme activity during color pattern development in wings of Precis coenia. Insect Biochemistry and Molecular Biology. 32(6). 609–615. 11 indexed citations
4.
Koch, P. Bernhardt. (2000). Color pattern formation in lepidopteran wings and ecophysiological adaptations.. 12. 559–570. 1 indexed citations
5.
Koch, P. Bernhardt, et al.. (2000). The molecular basis of melanism and mimicry in a swallowtail butterfly. Current Biology. 10(10). 591–594. 68 indexed citations
6.
Koch, P. Bernhardt, Ulrike Lorenz, Paul M. Brakefield, & Richard H. ffrench‐Constant. (2000). Butterfly wing pattern mutants: developmental heterochrony and co-ordinately regulated phenotypes. Development Genes and Evolution. 210(11). 536–544. 56 indexed citations
7.
8.
Brakefield, Paul M., Fanja Kesbeke, & P. Bernhardt Koch. (1998). The Regulation of Phenotypic Plasticity of Eyespots in the ButterflyBicyclus anynana. The American Naturalist. 152(6). 853–860. 100 indexed citations
9.
Koch, P. Bernhardt, David N. Keys, Thomas A. Rocheleau, et al.. (1998). Regulation of dopa decarboxylase expression during colour pattern formation in wild-type and melanic tiger swallowtail butterflies. Development. 125(12). 2303–2313. 73 indexed citations
10.
Matsumoto, Shogo, et al.. (1997). Occurrence of Four Neuropeptides in the Anterior Central Nervous System of the Butterfly Precis coenia. Die Naturwissenschaften. 84(4). 152–154. 5 indexed citations
11.
Koch, P. Bernhardt, Paul M. Brakefield, & Fanja Kesbeke. (1996). Ecdysteroids control eyespot size and wing color pattern in the polyphenic butterfly Bicyclus anynana (Lepidoptera: Satyridae). Journal of Insect Physiology. 42(3). 223–230. 71 indexed citations
12.
13.
Koch, P. Bernhardt. (1994). Wings of the ButterflyPrecis coenia synthesize dopamine melanin by selective enzyme activity of dopadecarboxylase. Die Naturwissenschaften. 81(1). 36–38. 8 indexed citations
14.
Koch, P. Bernhardt, et al.. (1994). Localization of the Pupal Melanization Reducing Factor of Inachis io (L.) and Comparison with Melanization and Reddish Coloration Hormone. Zeitschrift für Naturforschung C. 49(7-8). 476–482. 12 indexed citations
15.
16.
Koch, P. Bernhardt, et al.. (1992). The distribution of radiolabeled pigment precursors in the wing patterns of nymphalid butterflies. Journal of Research on the Lepidoptera. 30(1-2). 1–13. 18 indexed citations
17.
18.
Koch, P. Bernhardt & H. Frederik Nijhout. (1990). Color pattern specific proteins in black scales in developing wings ofPrecis coenia Hübner (Nymphalidae, Lepidoptera). Development Genes and Evolution. 199(5). 289–294. 5 indexed citations
19.
Koch, P. Bernhardt, et al.. (1990). Interspecific effects of the pupal melanization reducing factor on pupal colouration in different lepidopteran families. Journal of Insect Physiology. 36(3). 159–164. 16 indexed citations
20.
Koch, P. Bernhardt, et al.. (1961). THE INFLUENCE OF CORTISONE-ACETATE ON SOME SERUM PHOSPHORUS METABOLITES IN YOUNG MALE SCHIZOPHRENICS. American Journal of Psychiatry. 117(10). 926–928. 3 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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