Kai Vellak

2.5k total citations
51 papers, 1.1k citations indexed

About

Kai Vellak is a scholar working on Ecology, Evolution, Behavior and Systematics, Plant Science and Ecology. According to data from OpenAlex, Kai Vellak has authored 51 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 38 papers in Ecology, Evolution, Behavior and Systematics, 37 papers in Plant Science and 27 papers in Ecology. Recurrent topics in Kai Vellak's work include Botany and Plant Ecology Studies (35 papers), Bryophyte Studies and Records (35 papers) and Peatlands and Wetlands Ecology (26 papers). Kai Vellak is often cited by papers focused on Botany and Plant Ecology Studies (35 papers), Bryophyte Studies and Records (35 papers) and Peatlands and Wetlands Ecology (26 papers). Kai Vellak collaborates with scholars based in Estonia, Sweden and Spain. Kai Vellak's co-authors include Nele Ingerpuu, Jaanus Paal, Jaan Liira, Asko Lõhmus, Piret Lõhmus, Meelis Pärtel, Edgar Karofeld, Jaanus Remm, R. Henrik Nilsson and Leho Tedersoo and has published in prestigious journals such as SHILAP Revista de lepidopterología, Molecular Ecology and Journal of Environmental Management.

In The Last Decade

Kai Vellak

48 papers receiving 1.0k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Kai Vellak Estonia 19 631 626 442 306 171 51 1.1k
Geraldine D. Ryan Canada 12 251 0.4× 532 0.8× 183 0.4× 361 1.2× 118 0.7× 14 923
André Pornon France 21 548 0.9× 518 0.8× 214 0.5× 110 0.4× 383 2.2× 41 1.1k
Michael E. Van Nuland United States 16 298 0.5× 706 1.1× 221 0.5× 305 1.0× 469 2.7× 28 1.1k
Sarah M. Emery United States 20 580 0.9× 781 1.2× 439 1.0× 194 0.6× 686 4.0× 55 1.4k
Trevor Goward Canada 26 1.5k 2.4× 1.3k 2.1× 180 0.4× 268 0.9× 172 1.0× 99 1.8k
Emmanuel Rincón Mexico 20 586 0.9× 807 1.3× 283 0.6× 199 0.7× 605 3.5× 33 1.4k
Christopher M. Sthultz United States 11 266 0.4× 517 0.8× 225 0.5× 227 0.7× 486 2.8× 11 1.0k
L. Child Czechia 20 598 0.9× 856 1.4× 379 0.9× 321 1.0× 704 4.1× 80 1.4k
Patricia S. Muir United States 22 609 1.0× 515 0.8× 298 0.7× 311 1.0× 399 2.3× 46 1.2k
Barbara Tokarska‐Guzik Poland 17 401 0.6× 684 1.1× 223 0.5× 149 0.5× 334 2.0× 64 997

Countries citing papers authored by Kai Vellak

Since Specialization
Citations

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

Fields of papers citing papers by Kai Vellak

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kai Vellak

This figure shows the co-authorship network connecting the top 25 collaborators of Kai Vellak. A scholar is included among the top collaborators of Kai Vellak 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 Kai Vellak. Kai Vellak 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.
Karofeld, Edgar, Kai Vellak, & Arvo Tullus. (2024). Recovery of Sphagnum mosses in donor sites after cutting: effects of species and some environmental factors. Mires and Peat. 31. 24–24.
2.
Runnel, Kadri, Heidi Tamm, Marko Kohv, et al.. (2023). Short-term responses of the soil microbiome and its environment indicate an uncertain future of restored peatland forests. Journal of Environmental Management. 345. 118879–118879. 5 indexed citations
3.
Singer, David, Edward A. D. Mitchell, Richard J. Payne, et al.. (2019). Dispersal limitations and historical factors determine the biogeography of specialized terrestrial protists. Molecular Ecology. 28(12). 3089–3100. 42 indexed citations
4.
Vellak, Kai, et al.. (2019). Additions and amendments to the list of Estonian bryophytes. Folia Cryptogamica Estonica. 56. 1–5. 2 indexed citations
5.
Remm, Liina, Asko Lõhmus, Marko Kohv, et al.. (2019). Restoration dilemmas between future ecosystem and current species values: The concept and a practical approach in Estonian mires. Journal of Environmental Management. 250. 109439–109439. 19 indexed citations
6.
Ingerpuu, Nele, Kai Vellak, Priit Kupper, et al.. (2018). Response of bryophytes to afforestation, increase of air humidity, and enrichment of soil diaspore bank. Forest Ecology and Management. 432. 64–72. 12 indexed citations
7.
Kučera, Jan, Tom L. Blockeel, Péter Erzberger, et al.. (2018). TheDidymodon tophaceusComplex (Pottiaceae, Bryophyta) Revisited: New Data Support the Subspecific Rank of Currently Recognized Species. Cryptogamie Bryologie. 39(2). 241–257. 15 indexed citations
8.
Vellak, Kai, et al.. (2017). Application of oil-shale ash and straw mulch promotes the revegetation of extracted peatlands. Ecological Engineering. 110. 99–106. 5 indexed citations
9.
Vellak, Kai, et al.. (2017). New Estonian records: mosses. Folia Cryptogamica Estonica. 54. 143–143. 5 indexed citations
10.
Järveoja, Järvi, Matthias Peichl, Martin Maddison, et al.. (2016). Impact of water table level on annual carbon and greenhouse gas balances of a restored peat extraction area. Biogeosciences. 13(9). 2637–2651. 64 indexed citations
11.
Karofeld, Edgar, et al.. (2015). Factors affecting re-vegetation dynamics of experimentally restored extracted peatland in Estonia. Environmental Science and Pollution Research. 23(14). 13706–13717. 28 indexed citations
12.
Karofeld, Edgar, Reimo Rivis, Hannes Tõnisson, & Kai Vellak. (2015). Rapid Changes in Plant Assemblages on Mud-Bottom Hollows in Raised Bog: A Sixteen-Year Study. SHILAP Revista de lepidopterología. 16. 5 indexed citations
13.
14.
Ingerpuu, Nele & Kai Vellak. (2013). Growth depends on neighbours: experiments with threeSphagnumL. species. Journal of Bryology. 35(1). 27–32. 13 indexed citations
15.
Vellak, Kai, et al.. (2009). New Estonian records and amendments: Liverworts and mosses. 51(1). 34–6. 7 indexed citations
16.
Ingerpuu, Nele, et al.. (2008). Morphology and habitat properties of Tortula lingulata in Estonia. Folia Cryptogamica Estonica. 44. 49–54. 4 indexed citations
17.
Vellak, Kai. (2007). New EU Habitats Directive species for Estonia. Journal of Bryology. 29(2). 137–138. 2 indexed citations
18.
Vellak, Kai, et al.. (2006). Reasons for moss rarity: Study in three neighbouring countries. Biological Conservation. 135(3). 360–368. 10 indexed citations
19.
Vellak, Kai, et al.. (1999). Floristical and ecological properties for identifying of primeval forests in Estonia. Annales Botanici Fennici. 36(1). 67–80. 54 indexed citations
20.
Ingerpuu, Nele & Kai Vellak. (1996). The distribution and some ecological characteristics of Estonian rare bryophytes. Arctoa. 5(1). 143–148. 6 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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