K.‐A. Stokkan

862 total citations
19 papers, 662 citations indexed

About

K.‐A. Stokkan is a scholar working on Ecology, Endocrine and Autonomic Systems and Ecology, Evolution, Behavior and Systematics. According to data from OpenAlex, K.‐A. Stokkan has authored 19 papers receiving a total of 662 indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Ecology, 5 papers in Endocrine and Autonomic Systems and 5 papers in Ecology, Evolution, Behavior and Systematics. Recurrent topics in K.‐A. Stokkan's work include Avian ecology and behavior (5 papers), Circadian rhythm and melatonin (5 papers) and Spaceflight effects on biology (4 papers). K.‐A. Stokkan is often cited by papers focused on Avian ecology and behavior (5 papers), Circadian rhythm and melatonin (5 papers) and Spaceflight effects on biology (4 papers). K.‐A. Stokkan collaborates with scholars based in Norway, United Kingdom and United States. K.‐A. Stokkan's co-authors include Rüssel J. Reiter, N. J. C. Tyler, Roberto Massa, Bengt Silverin, Arnoldus Schytte Blix, Alexander Lerchl, Keico Okino Nonaka, P. J. Sharp, Qing‐Jun Meng and Andrew Loudon and has published in prestigious journals such as SHILAP Revista de lepidopterología, Current Biology and Biochemical and Biophysical Research Communications.

In The Last Decade

K.‐A. Stokkan

19 papers receiving 616 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
K.‐A. Stokkan Norway 14 276 217 213 127 81 19 662
Paul A. Bartell United States 16 189 0.7× 205 0.9× 342 1.6× 121 1.0× 125 1.5× 32 776
J. Boissin France 17 196 0.7× 148 0.7× 225 1.1× 108 0.9× 130 1.6× 61 805
J. Aschoff Germany 8 336 1.2× 231 1.1× 457 2.1× 228 1.8× 65 0.8× 13 1.0k
Devraj Singh India 12 163 0.6× 196 0.9× 285 1.3× 102 0.8× 23 0.3× 26 527
L. Martinet France 20 164 0.6× 81 0.4× 414 1.9× 149 1.2× 116 1.4× 51 1.1k
T. J. Nicholls United Kingdom 21 497 1.8× 662 3.1× 273 1.3× 40 0.3× 297 3.7× 32 1.4k
Augusto Fo� Italy 11 133 0.5× 148 0.7× 109 0.5× 16 0.1× 147 1.8× 12 348
Rolf Gattermann Germany 16 292 1.1× 241 1.1× 172 0.8× 88 0.7× 84 1.0× 41 840
David A. Freeman United States 20 143 0.5× 315 1.5× 652 3.1× 363 2.9× 92 1.1× 54 1.3k
J�rgen Aschoff Germany 11 109 0.4× 128 0.6× 338 1.6× 118 0.9× 28 0.3× 14 735

Countries citing papers authored by K.‐A. Stokkan

Since Specialization
Citations

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

Fields of papers citing papers by K.‐A. Stokkan

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by K.‐A. Stokkan. 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 K.‐A. Stokkan. The network helps show where K.‐A. Stokkan may publish in the future.

Co-authorship network of co-authors of K.‐A. Stokkan

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

All Works

19 of 19 papers shown
1.
Tyler, N. J. C., Glen Jeffery, Christopher Hogg, & K.‐A. Stokkan. (2014). Ultraviolet Vision May Enhance the Ability of Reindeer to Discriminate Plants in Snow. ARCTIC. 67(2). 159–159. 14 indexed citations
2.
3.
Nudds, Robert L., et al.. (2011). Evidence for energy savings from aerial running in the Svalbard rock ptarmigan (Lagopus muta hyperborea). Proceedings of the Royal Society B Biological Sciences. 278(1718). 2654–2661. 42 indexed citations
4.
Meng, Qing‐Jun, et al.. (2010). A Circadian Clock Is Not Required in an Arctic Mammal. Current Biology. 20(6). 533–537. 106 indexed citations
5.
Aarseth, J. H., Thomas Van’t Hof, & K.‐A. Stokkan. (2003). Melatonin is rhythmic in newborn seals exposed to continuous light. Journal of Comparative Physiology B. 173(1). 37–42. 10 indexed citations
6.
Oort, Bob van, N. J. C. Tyler, Eirik Reierth, & K.‐A. Stokkan. (2000). Biological rhythms in Arctic vertebrates. SHILAP Revista de lepidopterología. 20(2-3). 99–99. 5 indexed citations
7.
Stokkan, K.‐A., et al.. (1995). Photoperiodic and ambient temperature control of the annual body mass cycle in Svalbard ptarmigan. Journal of Comparative Physiology B. 165(5). 359–365. 15 indexed citations
8.
Stokkan, K.‐A., et al.. (1995). Annual changes in body mass in captive Svalbard ptarmigan: role of changes in locomotor activity and food intake. Journal of Comparative Physiology B. 165(6). 10 indexed citations
9.
Stokkan, K.‐A. & Rüssel J. Reiter. (1994). Melatonin rhythms in Arctic urban residents. Journal of Pineal Research. 16(1). 33–36. 65 indexed citations
10.
Silverin, Bengt, Roberto Massa, & K.‐A. Stokkan. (1993). Photoperiodic Adaptation to Breeding at Different Latitudes in Great Tits. General and Comparative Endocrinology. 90(1). 14–22. 76 indexed citations
11.
Stokkan, K.‐A., et al.. (1992). Protein utilization during starvation in fat and lean Svalbard ptarmigan (Lagopus mutus hyperboreus). Journal of Comparative Physiology B. 162(7). 607–613. 48 indexed citations
12.
Lerchl, Alexander, Keico Okino Nonaka, K.‐A. Stokkan, & Rüssel J. Reiter. (1990). Marked rapid alterations in nocturnal pineal serotonin metabolism in mice and rats exposed to weak intermittent magnetic fields. Biochemical and Biophysical Research Communications. 169(1). 102–108. 94 indexed citations
13.
Stokkan, K.‐A., Atle Mortensen, & Arnoldus Schytte Blix. (1986). Food intake, feeding rhythm, and body mass regulation in Svalbard rock ptarmigan. American Journal of Physiology-Regulatory, Integrative and Comparative Physiology. 251(2). R264–R267. 59 indexed citations
14.
Stokkan, K.‐A., et al.. (1985). Endocrine changes associated with fat deposition and mobilization in Svalbard ptarmigan (Lagopus mutus hyperboreus). General and Comparative Endocrinology. 58(1). 76–80. 21 indexed citations
15.
16.
Stokkan, K.‐A., P. J. Sharp, & Robert L. Moss. (1982). Development of photorefractoriness in willow ptarmigan (Lagopus lagopus lagopus) and red grouse (Lagopus lagopus scoticus) exposed to different photoperiods. General and Comparative Endocrinology. 46(3). 281–287. 13 indexed citations
17.
Stokkan, K.‐A. & P. J. Sharp. (1980). The development of photorefractoriness in willow ptarmigan (Lagopus lagopus lagopus) after the suppression of photoinduced LH release with implants of testosterone. General and Comparative Endocrinology. 41(4). 527–530. 14 indexed citations
18.
Stokkan, K.‐A. & P. J. Sharp. (1980). The roles of day length and the testes in the regulation of plasma LH levels in photosensitive and photorefractory willow ptarmigan (Lagopus lagopus lagopus). General and Comparative Endocrinology. 41(4). 520–526. 23 indexed citations
19.
Stokkan, K.‐A., Knut Hove, & William Carr. (1980). Plasma concentrations of testosterone and luteinizing hormone in rutting reindeer bulls (Rangifer tarandrus). Canadian Journal of Zoology. 58(11). 2081–2083. 15 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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