Raisa Nikula

2.5k total citations · 1 hit paper
17 papers, 2.0k citations indexed

About

Raisa Nikula is a scholar working on Oceanography, Ecology and Genetics. According to data from OpenAlex, Raisa Nikula has authored 17 papers receiving a total of 2.0k indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Oceanography, 12 papers in Ecology and 6 papers in Genetics. Recurrent topics in Raisa Nikula's work include Marine Biology and Ecology Research (12 papers), Marine and coastal plant biology (8 papers) and Aquatic Invertebrate Ecology and Behavior (7 papers). Raisa Nikula is often cited by papers focused on Marine Biology and Ecology Research (12 papers), Marine and coastal plant biology (8 papers) and Aquatic Invertebrate Ecology and Behavior (7 papers). Raisa Nikula collaborates with scholars based in New Zealand, Finland and United States. Raisa Nikula's co-authors include Jonathan M. Waters, Ceridwen I. Fraser, Hamish G. Spencer, Rosemary G. Gillespie, George Roderick, Bruce G. Baldwin, Risto Väinölä, Petr Strelkov, Daniel E. Ruzzante and Maciej Wołowicz and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Trends in Ecology & Evolution and Evolution.

In The Last Decade

Raisa Nikula

17 papers receiving 2.0k citations

Hit Papers

Long-distance dispersal: a framework for hypothesis testing 2011 2026 2016 2021 2011 100 200 300 400
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.

  1. Long-distance dispersal: a framework for hypothesis testing
    2011 444 citations Rosemary G. Gillespie, Bruce G. Baldwin et al. Trends in Ecology & Evolution profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Raisa Nikula New Zealand 14 991 902 747 426 383 17 2.0k
Cene Fišer Slovenia 28 1.9k 1.9× 698 0.8× 595 0.8× 707 1.7× 419 1.1× 118 3.0k
Filipe Alberto Portugal 26 1.4k 1.4× 1.5k 1.6× 804 1.1× 451 1.1× 582 1.5× 55 2.7k
Eric Pante France 19 1.3k 1.4× 614 0.7× 442 0.6× 652 1.5× 244 0.6× 52 2.0k
Cristián E. Hernández Chile 21 766 0.8× 344 0.4× 279 0.4× 411 1.0× 272 0.7× 96 1.5k
Elizabeth P. Dahlhoff United States 22 1.2k 1.2× 686 0.8× 447 0.6× 569 1.3× 299 0.8× 34 1.9k
Christoffer Schänder Norway 22 1.2k 1.3× 926 1.0× 250 0.3× 548 1.3× 493 1.3× 65 2.4k
Morgan W. Kelly United States 23 1.6k 1.6× 1.3k 1.5× 451 0.6× 1.2k 2.9× 411 1.1× 46 2.6k
Thomas von Rintelen Germany 27 1.3k 1.3× 321 0.4× 585 0.8× 337 0.8× 500 1.3× 106 2.5k
Galice Hoarau Netherlands 31 1.4k 1.4× 1.4k 1.5× 970 1.3× 928 2.2× 264 0.7× 61 3.2k
J. Grahame United Kingdom 27 945 1.0× 783 0.9× 1.2k 1.5× 555 1.3× 420 1.1× 71 2.4k

Countries citing papers authored by Raisa Nikula

Since Specialization
Citations

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

Fields of papers citing papers by Raisa Nikula

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Raisa Nikula

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

All Works

17 of 17 papers shown
1.
Huusko, Ari, Raisa Nikula, Pirjo Tanhuanpää, Marja‐Liisa Koljonen, & Tuomas Leinonen. (2023). Fish know no borders—Implications of the genetic structure and mixed‐stock composition to cross‐border management of adfluvial brown trout. Fisheries Management and Ecology. 31(2). 1 indexed citations
2.
Nikula, Raisa, et al.. (2016). Trans-Tasman genetic connectivity in the intertidal air-breathing slug Onchidella nigricans. Marine Ecology Progress Series. 562. 93–100. 6 indexed citations
3.
Nikula, Raisa, et al.. (2014). Transoceanic genetic similarities of kelp‐associated sea slug populations: long‐distance dispersal via rafting?. Journal of Biogeography. 41(12). 2357–2370. 58 indexed citations
4.
Fraser, Ceridwen I., Raisa Nikula, Daniel E. Ruzzante, & Jonathan M. Waters. (2012). Poleward bound: biological impacts of Southern Hemisphere glaciation. Trends in Ecology & Evolution. 27(8). 462–471. 168 indexed citations
5.
Nikula, Raisa, Hamish G. Spencer, & Jonathan M. Waters. (2012). Passive rafting is a powerful driver of transoceanic gene flow. Biology Letters. 9(1). 20120821–20120821. 59 indexed citations
6.
Nikula, Raisa, Hamish G. Spencer, & Jonathan M. Waters. (2011). Evolutionary consequences of microhabitat: population-genetic structuring in kelp- vs. rock-associated chitons. Molecular Ecology. 20(23). 4915–4924. 23 indexed citations
7.
Nikula, Raisa, Hamish G. Spencer, & Jonathan M. Waters. (2011). Comparison of population‐genetic structuring in congeneric kelp‐ versus rock‐associated snails: a test of a dispersal‐by‐rafting hypothesis. Ecology and Evolution. 1(2). 169–180. 22 indexed citations
8.
Gillespie, Rosemary G., Bruce G. Baldwin, Jonathan M. Waters, et al.. (2011). Long-distance dispersal: a framework for hypothesis testing. Trends in Ecology & Evolution. 27(1). 47–56. 444 indexed citations breakdown →
9.
Fraser, Ceridwen I., Raisa Nikula, & Jonathan M. Waters. (2010). Oceanic rafting by a coastal community. Proceedings of the Royal Society B Biological Sciences. 278(1706). 649–655. 201 indexed citations
10.
Chenuil, Anne, et al.. (2010). Complex genetic population structure of the bivalve Cerastoderma glaucum in a highly fragmented lagoon habitat. Marine Ecology Progress Series. 406. 173–184. 34 indexed citations
11.
Nikula, Raisa, Ceridwen I. Fraser, Hamish G. Spencer, & Jonathan M. Waters. (2010). Circumpolar dispersal by rafting in two subantarctic kelp-dwelling crustaceans. Marine Ecology Progress Series. 405. 221–230. 156 indexed citations
12.
Fraser, Ceridwen I., Raisa Nikula, Hamish G. Spencer, & Jonathan M. Waters. (2009). Kelp genes reveal effects of subantarctic sea ice during the Last Glacial Maximum. Proceedings of the National Academy of Sciences. 106(9). 3249–3253. 221 indexed citations
13.
Nikula, Raisa, Petr Strelkov, & Risto Väinölä. (2008). A broad transition zone between an inner Baltic hybrid swarm and a pure North Sea subspecies ofMacoma balthica(Mollusca, Bivalvia). Molecular Ecology. 17(6). 1505–1522. 43 indexed citations
14.
Nikula, Raisa. (2008). Phylogeography and hybrid swarms: history of brackish water bivalve diversity in North European marginal seas. Työväentutkimus Vuosikirja. 2 indexed citations
15.
Strelkov, Petr, Raisa Nikula, & Risto Väinölä. (2007). Macoma balthica in the White and Barents Seas: properties of a widespread marine hybrid swarm (Mollusca: Bivalvia). Molecular Ecology. 16(19). 4110–4127. 35 indexed citations
16.
Nikula, Raisa, Petr Strelkov, & Risto Väinölä. (2007). DIVERSITY AND TRANS-ARCTIC INVASION HISTORY OF MITOCHONDRIAL LINEAGES IN THE NORTH ATLANTIC MACOMA BALTHICA COMPLEX (BIVALVIA: TELLINIDAE). Evolution. 61(4). 928–941. 76 indexed citations
17.
Nikula, Raisa, et al.. (2003). Phylogeography of Cerastoderma glaucum (Bivalvia: Cardiidae) across Europe: a major break in the Eastern Mediterranean. Marine Biology. 143(2). 339–350. 460 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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