Urmas Kõljalg

36.2k total citations · 8 hit papers
101 papers, 10.9k citations indexed

About

Urmas Kõljalg is a scholar working on Plant Science, Cell Biology and Ecology, Evolution, Behavior and Systematics. According to data from OpenAlex, Urmas Kõljalg has authored 101 papers receiving a total of 10.9k indexed citations (citations by other indexed papers that have themselves been cited), including 76 papers in Plant Science, 40 papers in Cell Biology and 34 papers in Ecology, Evolution, Behavior and Systematics. Recurrent topics in Urmas Kõljalg's work include Mycorrhizal Fungi and Plant Interactions (71 papers), Plant Pathogens and Fungal Diseases (40 papers) and Forest Ecology and Biodiversity Studies (33 papers). Urmas Kõljalg is often cited by papers focused on Mycorrhizal Fungi and Plant Interactions (71 papers), Plant Pathogens and Fungal Diseases (40 papers) and Forest Ecology and Biodiversity Studies (33 papers). Urmas Kõljalg collaborates with scholars based in Estonia, Sweden and United States. Urmas Kõljalg's co-authors include Leho Tedersoo, Kessy Abarenkov, R. Henrik Nilsson, Karl‐Henrik Larsson, Mohammad Bahram, Irja Saar, Andy F. S. Taylor, Dmitry Schigel, Ellen Larsson and Johan Bengtsson‐Palme and has published in prestigious journals such as Nucleic Acids Research, Nature Communications and SHILAP Revista de lepidopterología.

In The Last Decade

Urmas Kõljalg

97 papers receiving 10.6k citations

Hit Papers

5 papers align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

The UNITE database for molecular identification of fungi: handling dark taxa and parallel taxonomic classifications

2018 2.4k citations R. Henrik Nilsson, Thomas Stjernegaard Jeppesen et al. profile →
UNITE: a database providing web‐based methods for the molecular identification of ectomycorrhizal fungi

2005 880 citations Urmas Kõljalg, Karl‐Henrik Larsson et al. New Phytologist profile →
Fungal community analysis by high‐throughput sequencing of amplified markers – a user's guide

2013 654 citations R. Henrik Nilsson, Leho Tedersoo et al. New Phytologist profile →
454 Pyrosequencing and Sanger sequencing of tropical mycorrhizal fungi provide similar results but reveal substantial methodological biases

2010 456 citations Leho Tedersoo, R. Henrik Nilsson et al. New Phytologist profile →
High-level classification of the Fungi and a tool for evolutionary ecological analyses

2018 456 citations Leho Tedersoo, Santiago Sánchez‐Ramírez et al. Fungal Diversity profile →
Shotgun metagenomes and multiple primer pair-barcode combinations of amplicons reveal biases in metabarcoding analyses of fungi

2015 398 citations Leho Tedersoo, Sten Anslan et al. profile →
Towards global patterns in the diversity and community structure of ectomycorrhizal fungi

2012 322 citations Leho Tedersoo, Mohammad Bahram et al. profile →
Structure and function of the soil microbiome underlying N2O emissions from global wetlands

2022 148 citations Mohammad Bahram, Mikk Espenberg et al. Nature Communications profile →

Peers

Countries citing papers authored by Urmas Kõljalg

Since Specialization

Citations

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

Fields of papers citing papers by Urmas Kõljalg

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Urmas Kõljalg

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

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Biogeography and host associations of Russula subsection Xerampelinae based on large‐scale analysis of UNITE sequence data 2025 ·New Phytologist ·(unknown), Miroslav Caboň, P. Brandon Matheny, Katarína Adamčíková, Brian P. Looney, Urmas Kõljalg, Kessy Abarenkov, Slavomír Adamčík	0
2	PhyloNext: a pipeline for phylogenetic diversity analysis of GBIF-mediated data 2024 ·SHILAP Revista de lepidopterología ·Vladimir Mikryukov, Kessy Abarenkov, Shawn W. Laffan, Tim Robertson, Emily Jane McTavish, Thomas Stjernegaard Jeppesen, John Waller, (unknown), Urmas Kõljalg, Joseph T. Miller	2
3	Merging the genus Tomentella with Thelephora (Fungi, Thelephorales) 2024 ·Folia Cryptogamica Estonica ·Urmas Kõljalg, Irja Saar, Sten Svantesson	2
4	DNA barcoding of fungal specimens using PacBio long‐read high‐throughput sequencing 2022 ·Molecular Ecology Resources ·Kadri Runnel, Kessy Abarenkov, (unknown), Vladimir Mikryukov, Urmas Kõljalg, Irja Saar, Leho Tedersoo	23
5	Structure and function of the soil microbiome underlying N2O emissions from global wetlands breakdown → 2022 ·Nature Communications ·Mohammad Bahram, Mikk Espenberg, Jaan Pärn, Laura E. Lehtovirta‐Morley, Sten Anslan, Kuno Kasak, Urmas Kõljalg, Jaan Liira, Martin Maddison, Mari Moora, Ülo Niinemets, Maarja Öpik, Meelis Pärtel, Kaido Soosaar, Martin Zobel, Falk Hildebrand, Leho Tedersoo, Ülo Mander	148
6	Introducing guidelines for publishing DNA-derived occurrence data through biodiversity data platforms 2022 ·SHILAP Revista de lepidopterología ·R. Henrik Nilsson, Anders F. Andersson, Andrew Bissett, Anders G. Finstad, Frode Fossøy, (unknown), Michael Hope, Thomas Stjernegaard Jeppesen, Urmas Kõljalg, Daniel Lundin, (unknown), (unknown), Cecilie S. Svenningsen, Dmitry Schigel	11
7	Towards Interlinked FAIR Biodiversity Knowledge: The BiCIKL perspective 2021 ·Biodiversity Information Science and Standards ·Lyubomir Penev, Dimitrios Koureas, Quentin Groom, Jerry Lanfear, Donat Agosti, (unknown), Joseph T. Miller, Christos Arvanitidis, Guy Cochrane, (unknown), Donald Hobern, Olaf Bánki, (unknown), Urmas Kõljalg, Patrick Ruch, Kyle Copas, Patricia Mergen, Anton Güntsch, (unknown), (unknown)	4
8	Identifying the ‘unidentified’ fungi: a global-scale long-read third-generation sequencing approach 2020 ·Fungal Diversity ·Leho Tedersoo, Sten Anslan, Mohammad Bahram, Urmas Kõljalg, Kessy Abarenkov	57
9	Mapping and Publishing Sequence-Derived Data through Biodiversity Data Platforms 2020 ·Biodiversity Information Science and Standards ·Dmitry Schigel, Anders F. Andersson, Andrew Bissett, Anders G. Finstad, Frode Fossøy, Marie Grosjean, Michael Hope, Urmas Kõljalg, Daniel Lundin, R. Henrik Nilsson, (unknown), Thomas Stjernegaard Jeppesen, Cecilie S. Svenningsen	1
10	High-level classification of the Fungi and a tool for evolutionary ecological analyses breakdown → 2018 ·Fungal Diversity ·Leho Tedersoo, Santiago Sánchez‐Ramírez, Urmas Kõljalg, Mohammad Bahram, Markus Döring, Dmitry Schigel, Tom W. May, Martin Ryberg, Kessy Abarenkov	456
11	Polyozellus multiplex (Thelephorales) is a species complex containing four new species 2017 ·Mycologia ·Andrus Voitk, Irja Saar, Steven A. Trudell, Viacheslav Spirin, Michael Beug, Urmas Kõljalg	7
12	A note on the incidence of reverse complementary fungal ITS sequences in the public sequence databases and a software tool for their detection and reorientation 2011 ·Mycoscience ·R. Henrik Nilsson, Vilmar Veldre, Zheng Wang, Martin Eckart, Sara Branco, Martin Hartmann, Christopher Quince, Anna Godhe, Yann Bertrand, (unknown), Karl‐Henrik Larsson, Urmas Kõljalg, Kessy Abarenkov	1
13	Rangewide analysis of fungal associations in the fully mycoheterotrophic Corallorhiza striata complex (Orchidaceae) reveals extreme specificity on ectomycorrhizal Tomentella (Thelephoraceae) across North America 2010 ·American Journal of Botany ·Craig F. Barrett, John V. Freudenstein, D. Lee Taylor, Urmas Kõljalg	47
14	Establishment of ectomycorrhizal fungal community on isolated Nothofagus cunninghamii seedlings regenerating on dead wood in Australian wet temperate forests: does fruit-body type matter? 2009 ·Mycorrhiza ·Leho Tedersoo, Genevieve Gates, (unknown), Teresa Lebel, Tom W. May, Urmas Kõljalg, Teele Jairus	39
15	Fungal associates of Pyrola rotundifolia, a mixotrophic Ericaceae, from two Estonian boreal forests 2008 ·Mycorrhiza ·Lucie Vincenot, Leho Tedersoo, Franck Richard, (unknown), Urmas Kõljalg, Marc‐André Selosse	38
16	Amaurodon sumatranus (Thelephorales, Basidiomycota), a new species from Indonesia 2007 ·Mycotaxon ·Otto Miettinen, Urmas Kõljalg	3
17	Fruiting body-guided molecular identification of root-tip mantle mycelia provides strong indications of ectomycorrhizal associations in two species of Sistotrema (Basidiomycota) 2006 ·Mycological Research ·R. Henrik Nilsson, Karl‐Henrik Larsson, Ellen Larsson, Urmas Kõljalg	39
18	Diversity and community structure of ectomycorrhizal fungi in a wooded meadow 2006 ·Mycological Research ·Leho Tedersoo, Triin Suvi, Ellen Larsson, Urmas Kõljalg	126
19	Pseudotomentella ochracea sp. nov., based on morphological and molecular data. 1998 ·Folia Cryptogamica Estonica ·Urmas Kõljalg, Ellen Larsson	3
20	A new species of Amaurodon (Basidiomycota, Aphyllophorales) 1997 ·Mycotaxon ·Urmas Kõljalg, Leif Ryvarden	1

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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