Per Sjögren

964 total citations
27 papers, 733 citations indexed

About

Per Sjögren is a scholar working on Atmospheric Science, Ecology, Evolution, Behavior and Systematics and Ecology. According to data from OpenAlex, Per Sjögren has authored 27 papers receiving a total of 733 indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Atmospheric Science, 9 papers in Ecology, Evolution, Behavior and Systematics and 8 papers in Ecology. Recurrent topics in Per Sjögren's work include Geology and Paleoclimatology Research (17 papers), Lichen and fungal ecology (9 papers) and Archaeology and ancient environmental studies (7 papers). Per Sjögren is often cited by papers focused on Geology and Paleoclimatology Research (17 papers), Lichen and fungal ecology (9 papers) and Archaeology and ancient environmental studies (7 papers). Per Sjögren collaborates with scholars based in Norway, Switzerland and United Kingdom. Per Sjögren's co-authors include Willem O. van der Knaap, Ludovic Gielly, Mary E. Edwards, Inger Greve Alsos, Jacqueline F. N. van Leeuwen, Youri Lammers, Nigel G. Yoccoz, Tina Jørgensen, Antti Huusko and Simon Connor and has published in prestigious journals such as PLoS ONE, New Phytologist and Quaternary Science Reviews.

In The Last Decade

Per Sjögren

27 papers receiving 709 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Per Sjögren Norway 17 419 334 130 114 110 27 733
Geoff Hope Australia 13 229 0.5× 129 0.4× 205 1.6× 131 1.1× 79 0.7× 25 641
Camille A. Holmgren United States 12 297 0.7× 179 0.5× 83 0.6× 144 1.3× 28 0.3× 17 530
Barna Páll‐Gergely Hungary 16 221 0.5× 461 1.4× 272 2.1× 151 1.3× 38 0.3× 127 979
Catherine Langdon United Kingdom 9 317 0.8× 197 0.6× 60 0.5× 95 0.8× 57 0.5× 15 462
Frédéric Magnin France 21 225 0.5× 439 1.3× 219 1.7× 196 1.7× 36 0.3× 59 1.0k
L.G. Bezusko Ukraine 7 342 0.8× 113 0.3× 125 1.0× 99 0.9× 46 0.4× 26 566
Jens Böcher Denmark 20 567 1.4× 258 0.8× 261 2.0× 126 1.1× 37 0.3× 33 881
Erik J. de Boer Netherlands 11 174 0.4× 172 0.5× 65 0.5× 87 0.8× 31 0.3× 17 444
Michelle Leydet France 11 471 1.1× 170 0.5× 123 0.9× 189 1.7× 20 0.2× 14 712
V. Ramirez Chile 4 147 0.4× 110 0.3× 149 1.1× 173 1.5× 62 0.6× 8 603

Countries citing papers authored by Per Sjögren

Since Specialization
Citations

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

Fields of papers citing papers by Per Sjögren

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Per Sjögren

This figure shows the co-authorship network connecting the top 25 collaborators of Per Sjögren. A scholar is included among the top collaborators of Per Sjögren 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 Per Sjögren. Per Sjögren 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.
Alsos, Inger Greve, Per Sjögren, Antony G. Brown, et al.. (2020). Last Glacial Maximum environmental conditions at Andøya, northern Norway; evidence for a northern ice-edge ecological “hotspot”. Quaternary Science Reviews. 239. 106364–106364. 38 indexed citations
2.
Alsos, Inger Greve, Youri Lammers, Nigel G. Yoccoz, et al.. (2018). Plant DNA metabarcoding of lake sediments: How does it represent the contemporary vegetation. PLoS ONE. 13(4). e0195403–e0195403. 126 indexed citations
3.
4.
Sjögren, Per, Mary E. Edwards, Ludovic Gielly, et al.. (2016). Lake sedimentary DNA accurately records 20th Century introductions of exotic conifers in Scotland. New Phytologist. 213(2). 929–941. 77 indexed citations
5.
Alsos, Inger Greve, Éric Coissac, Mary E. Edwards, et al.. (2015). Plant DNA in sediments: to which degree do they represent the flora?. Duo Research Archive (University of Oslo). 4 indexed citations
6.
Sjögren, Per, Stein Rune Karlsen, & Christin Jensen. (2015). The use of quantitative models to assess long-term climate–vegetation dynamics – A case study from the northern Scandinavian Mountains. The Holocene. 25(7). 1124–1133. 9 indexed citations
7.
Alsos, Inger Greve, Per Sjögren, Mary E. Edwards, et al.. (2015). Sedimentary ancient DNA from Lake Skartjørna, Svalbard: Assessing the resilience of arctic flora to Holocene climate change. The Holocene. 26(4). 627–642. 85 indexed citations
8.
9.
Sjögren, Per. (2013). A pilot study on absolute pollen productivity estimates from mires in Norway. The Holocene. 23(10). 1487–1492. 15 indexed citations
10.
Sjögren, Per & Andreas J. Kirchhefer. (2012). Historical legacy of the old-growth pine forest in Dividalen, northern Scandes. International Journal of Biodiversity Science Ecosystems Services & Management. 8(4). 338–350. 11 indexed citations
11.
Hassel, Kristian, et al.. (2012). Long-term land-use and landscape dynamics in Budalen, central Norway. International Journal of Biodiversity Science Ecosystems Services & Management. 8(4). 351–359. 10 indexed citations
12.
Sjögren, Per, et al.. (2012). Agricultural practices in Arctic Norway during the first millennium b.c.. Vegetation History and Archaeobotany. 22(1). 1–15. 25 indexed citations
13.
Filipova‐Marinova, Mariana, Eliso Kvavadze, Simon Connor, & Per Sjögren. (2010). Estimating absolute pollen productivity for some European Tertiary-relict taxa. Vegetation History and Archaeobotany. 19(4). 351–364. 30 indexed citations
14.
Sjögren, Per, Simon Connor, & Willem O. van der Knaap. (2010). The development of composite dispersal functions for estimating absolute pollen productivity in the Swiss Alps. Vegetation History and Archaeobotany. 19(4). 341–349. 18 indexed citations
15.
Sjögren, Per. (2009). Climate, cod and crops: coastal land use in the SW Barents Sea region during the past 2.5 ka. The Holocene. 19(5). 703–716. 9 indexed citations
16.
17.
Sjögren, Per, Willem O. van der Knaap, Jed O. Kaplan, Jacqueline F. N. van Leeuwen, & Brigitta Ammann. (2007). A pilot study on pollen representation of mountain valley vegetation in the central Alps. Review of Palaeobotany and Palynology. 149(3-4). 208–218. 23 indexed citations
18.
Sjögren, Per & Mariusz Lamentowicz. (2007). Human and climatic impact on mires: a case study of Les Amburnex mire, Swiss Jura Mountains. Vegetation History and Archaeobotany. 17(2). 185–197. 17 indexed citations
19.
Sjögren, Per, Jacqueline F. N. van Leeuwen, Willem O. van der Knaap, & Klaas van der Borg. (2006). The effect of climate variability on pollen productivity, AD 1975-2000, recorded in a Sphagnum peat hummock. The Holocene. 16(2). 277–286. 21 indexed citations
20.

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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