Claes Andrén

2.3k total citations
37 papers, 1.1k citations indexed

About

Claes Andrén is a scholar working on Ecology, Evolution, Behavior and Systematics, Global and Planetary Change and Genetics. According to data from OpenAlex, Claes Andrén has authored 37 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 25 papers in Ecology, Evolution, Behavior and Systematics, 18 papers in Global and Planetary Change and 15 papers in Genetics. Recurrent topics in Claes Andrén's work include Amphibian and Reptile Biology (17 papers), Plant and animal studies (10 papers) and Animal Behavior and Reproduction (8 papers). Claes Andrén is often cited by papers focused on Amphibian and Reptile Biology (17 papers), Plant and animal studies (10 papers) and Animal Behavior and Reproduction (8 papers). Claes Andrén collaborates with scholars based in Sweden, United States and Russia. Claes Andrén's co-authors include Göran Nilson, Bo Hedblad, G. Berglund, Lars Janzon, B Gullberg, Iréne Mattisson, Elisabet Wirfält, Mats Olsson, Lennart Henrikson and Bengt Silverin and has published in prestigious journals such as American Journal of Epidemiology, Oikos and Copeia.

In The Last Decade

Claes Andrén

36 papers receiving 898 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Claes Andrén Sweden 17 602 475 360 224 189 37 1.1k
Wang Zuwang China 19 107 0.2× 282 0.6× 499 1.4× 162 0.7× 146 0.8× 49 934
Scott Connelly United States 14 377 0.6× 115 0.2× 353 1.0× 35 0.2× 310 1.6× 18 804
P. N. O'Donoghue United Kingdom 10 109 0.2× 243 0.5× 581 1.6× 395 1.8× 170 0.9× 26 1.0k
Lynn W. Oliphant Canada 22 91 0.2× 415 0.9× 676 1.9× 100 0.4× 123 0.7× 60 1.1k
Pablo Burraco Spain 17 328 0.5× 346 0.7× 354 1.0× 118 0.5× 110 0.6× 41 917
Christina M. Richards United States 19 468 0.8× 292 0.6× 118 0.3× 234 1.0× 112 0.6× 38 1.0k
Teri J. Orr United States 17 68 0.1× 295 0.6× 219 0.6× 166 0.7× 60 0.3× 37 776
Sylvie Massemin France 22 104 0.2× 606 1.3× 747 2.1× 81 0.4× 108 0.6× 47 1.4k
Francisco Javier Zamora‐Camacho Spain 16 548 0.9× 512 1.1× 306 0.8× 81 0.4× 93 0.5× 58 821
Stacey L. Weiss United States 17 305 0.5× 530 1.1× 130 0.4× 111 0.5× 49 0.3× 41 891

Countries citing papers authored by Claes Andrén

Since Specialization
Citations

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

Fields of papers citing papers by Claes Andrén

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Claes Andrén. 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 Claes Andrén. The network helps show where Claes Andrén may publish in the future.

Co-authorship network of co-authors of Claes Andrén

This figure shows the co-authorship network connecting the top 25 collaborators of Claes Andrén. A scholar is included among the top collaborators of Claes Andrén 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 Claes Andrén. Claes Andrén 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.
Andrén, Claes, et al.. (2010). Nordens Ark - a university conservation field station. International Zoo Yearbook. 45(1). 18–29. 2 indexed citations
2.
Nilson, Göran & Claes Andrén. (2001). The meadow and steppe vipers of Europe and Asia: the Vipera (Acridophaga) ursinii complex. Acta Zoologica Academiae Scientiarum Hungaricae. 47. 87–267. 58 indexed citations
3.
Wirfält, Elisabet, Bo Hedblad, B Gullberg, et al.. (2001). Food Patterns and Components of the Metabolic Syndrome in Men and Women: A Cross-sectional Study within the Malmo Diet and Cancer Cohort. American Journal of Epidemiology. 154(12). 1150–1159. 218 indexed citations
4.
Nilson, Göran, et al.. (1999). Ecology and conservation of the Milos viper, Macrovipera schweizeri (Werner, 1935). Amphibia-Reptilia. 20(4). 355–375. 9 indexed citations
5.
Andrén, Claes, et al.. (1997). Reproductive strategies and sperm competition in the adder, Vipera berus.. 70. 129–141. 5 indexed citations
6.
Nilson, Göran, Boris S. Tuniyev, Nikolai L. Orlov, Mats Höggren, & Claes Andrén. (1995). Systematics of the vipers of the Caucasus: Polymorphism or sibling species?. Biodiversity Heritage Library (Smithsonian Institution). 6. 1–16. 15 indexed citations
7.
Andrén, Claes & Göran Nilson. (1995). Re-introduction of the fire-bellied toad Bombina bombina in southern Sweden. 71. 82–83. 2 indexed citations
8.
Nilson, Göran, Mats Höggren, Boris S. Tuniyev, Nikolai L. Orlov, & Claes Andrén. (1994). Phylogeny of the vipers of the Caucasus (Reptilia, Viperidae). Zoologica Scripta. 23(4). 353–360. 7 indexed citations
9.
Nilson, Göran, Claes Andrén, & Zbigniew Szyndlar. (1994). The systematic position of the Common Adder, Vipera berus (L.) (Reptilia, Viperidae), in North Korea and adjacent regions. Biodiversity Heritage Library (Smithsonian Institution). 3 indexed citations
10.
Nilson, Göran & Claes Andrén. (1992). The species concept in the Vipera xanthina complex: reflecting evolutionary history or hiding biological diversity?. Amphibia-Reptilia. 13(4). 421–424. 7 indexed citations
11.
Nilson, Göran, et al.. (1990). Vipera albizona, a new mountain viper from central Turkey, with comments on isolating effects of the Anatolian "Diagonal". Amphibia-Reptilia. 11(3). 285–294. 30 indexed citations
12.
13.
Nilson, Göran & Claes Andrén. (1988). A new subspecies of the subalpine meadow viper, Vipera ursinii (Bonaparte) (Reptilia, Viperidae), from Greece. Zoologica Scripta. 17(3). 311–314. 8 indexed citations
14.
Andrén, Claes. (1986). Courtship, mating and agonistic behaviour in a free-living population of adders, Vipera berus (L.). Amphibia-Reptilia. 7(4). 353–383. 49 indexed citations
15.
Andrén, Claes. (1985). Risk of predation in male and female adders, Vipera berus (Linné). Amphibia-Reptilia. 6(2). 203–206. 25 indexed citations
16.
Andrén, Claes & Göran Nilson. (1983). Reproductive Tactics in an Island Population of Adders, Vipera berus (L.), with a fluctuating Food Resource. Amphibia-Reptilia. 4(1). 63–79. 97 indexed citations
17.
Nilson, Göran & Claes Andrén. (1981). Morphology and taxonomic status of the grass snake, Natrix natrix (L.) (Reptilia, Squamata, Colubridae) on the island of Gotland, Sweden. Zoological Journal of the Linnean Society. 72(4). 355–368. 12 indexed citations
18.
Nilson, Göran & Claes Andrén. (1980). The Moor Frog, Rana arvalis NILSSON (Amphibia: Ranidae) on the Baltic Island Gotland, a Case of Microevolution. Amphibia-Reptilia. 1(3). 347–351.
19.
Andrén, Claes & Göran Nilson. (1979). A New Species of Toad (Amphibia, Anura, Bufonidae) from the Kavir Desert, Iran. Journal of Herpetology. 13(1). 93–93. 2 indexed citations
20.
Nilson, Göran & Claes Andrén. (1978). A New Species of Ophiomorus (Sauria: Scincidae) from Kavir Desert, Iran. Copeia. 1978(4). 559–559. 11 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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