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Personal profile

Research interests

Overview of current research

My research focuses on three main topics: 

1. Relationship between forest diversity and ecosystem functioning

This work is conducted at the Satakunta forest diversity experiments established by my research team in SW Finland in 1999-2000. These long-term experiments manipulate tree species richness and intraspecific genetic diversity. They are part of the global network of tree diversity experiments TreeDivNet and, to our knowledge, are the only existing forest diversity experiments in boreal forest zone established specifically for studying the link between forest diversity and ecosystem functioning and exploring the effects of both inter- and intraspecific diversity. The research in the Satakunta experiments focuses on unravelling the effects of forest diversity on various above- and belowground processes including tree growth and survival, light absorption and light use efficiency, insect and mammalian herbivory, arthropod and avian predation, litter decomposition, and soil microbial processes. Research at Satakunta has been funded by EU (Baccara and FunDivEurope projects), NERC, Academy of Finland, and Kone Foundation.



 2. Ecology and evolution of plant-herbivore interactions

I am interested in mechanisms of plant resistance to insect and mammalian herbivores, including physical, chemical and biotic defences, as well as associational resistance, which occurs when focal plants suffer less herbivory in mixed species stands as compared to plant monocultures. For instance, recent work in my lab has unravelled complex interactions between winter browsing by moose on birch and tree species diversity effects on tree growth and insect herbivory the following summer.


 3. Methods and applications of meta-analysis and research synthesis in ecology

Meta-analysis is a set of statistical procedures designed to combine results across independent studies that address a related set of research questions. It has been originally developed in medicine and social sciences and allows powerful quantitative analyses of the magnitude of effects and has a high degree of objectivity because it is based on a standardized set of statistical procedures.

I have used the method of meta-analysis to review the results of studies testing the predictions of general plant-herbivore theories as well as to compare the effectiveness of different conservation and management approaches. I have also contributed to the development of the methods for detection of publication bias and temporal changes in effect sizes over time. I am regularly teaching postgraduate courses on uses of meta-analysis in ecology both in the UK and abroad.

Together with Prof. Jessica Gurevitch and Prof. Kerrie Mengersen I have co-edited the first handbook of meta-analysis in ecology and evolution (Princeton University Press, 2013).

Our recent review of uses of meta-analysis in plant ecology revealed a number of methodological and reporting flaws and led to development of a checklist of quality criteria for meta-analysis for use by research synthesists, peer reviewers and journal editors.



Expertise related to UN Sustainable Development Goals

In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):

  • SDG 13 - Climate Action
  • SDG 15 - Life on Land


Recent external collaboration on country/territory level. Dive into details by clicking on the dots or
  • Priorities for synthesis research in ecology and environmental science

    Halpern, B. S., Boettiger, C., Dietze, M. C., Gephart, J. A., Gonzalez, P., Grimm, N. B., Groffman, P. M., Gurevitch, J., Hobbie, S. E., Komatsu, K. J., Kroeker, K. J., Lahr, H. J., Lodge, D. M., Lortie, C. J., Lowndes, J. S. S., Micheli, F., Possingham, H. P., Ruckelshaus, M. H., Scarborough, C., Wood, C. L., & 97 othersWu, G. C., Aoyama, L., Arroyo, E. E., Bahlai, C. A., Beller, E. E., Blake, R. E., Bork, K. S., Branch, T. A., Brown, N. E. M., Brun, J., Bruna, E. M., Buckley, L. B., Burnett, J. L., Castorani, M. C. N., Cheng, S. H., Cohen, S. C., Couture, J. L., Crowder, L. B., Dee, L. E., Dias, A. S., Diaz-Maroto, I. J., Downs, M. R., Dudney, J. C., Ellis, E. C., Emery, K. A., Eurich, J. G., Ferriss, B. E., Fredston, A., Furukawa, H., Gagné, S. A., Garlick, S. R., Garroway, C. J., Gaynor, K. M., González, A. L., Grames, E. M., Guy-Haim, T., Hackett, E., Hallett, L. M., Harms, T. K., Haulsee, D. E., Haynes, K. J., Hazen, E. L., Jarvis, R. M., Jones, K., Kandlikar, G. S., Kincaid, D. W., Knope, M. L., Koirala, A., Kolasa, J., Kominoski, J. S., Koricheva, J., Lancaster, L. T., Lawlor, J. A., Lowman, H. E., Muller-Karger, F. E., Norman, K. E. A., Nourn, N., O'Hara, C. C., Ou, S. X., Padilla-Gamino, J. L., Pappalardo, P., Peek, R. A., Pelletier, D., Plont, S., Ponisio, L. C., Portales-Reyes, C., Provete, D. B., Raes, E. J., Ramirez-Reyes, C., Ramos, I., Record, S., Richardson, A. J., Salguero-Gómez, R., Satterthwaite, E. V., Schmidt, C., Schwartz, A. J., See, C. R., Shea, B. D., Smith, R. S., Sokol, E. R., Solomon, C. T., Spanbauer, T., Stefanoudis, P. V., Sterner, B. W., Sudbrack, V., Tonkin, J. D., Townes, A. R., Valle, M., Walter, J. A., Wheeler, K. I., Wieder, W. R., Williams, D. R., Winter, M., Winterova, B., Woodall, L. C., Wymore, A. S. & Youngflesh, C., Jan 2023, In: Ecosphere. 14, 1, e4342.

    Research output: Contribution to journalArticlepeer-review

    Open Access
  • Publication bias impacts on effect size, statistical power, and magnitude (Type M) and sign (Type S) errors in ecology and evolutionary biology

    Yang, Y., Sánchez-Tójar, A., O'Dea, R., Noble, D., Koricheva, J., Jennions, M., Parker, T., Lagisz, M. & Nakagawa, S., 3 Apr 2023, In: BMC Biology. 21, 71.

    Research output: Contribution to journalArticlepeer-review

    Open Access
  • Assessing collated and synthesised evidence

    Sutherland, W., Cheng, S., Christie, A., Cooke, S., Koricheva, J., Randall, N., Smith, R. & Stewart, R., 6 Dec 2022, Transforming Conservation: A Practical Guide to Evidence and Decision Making. Sutherland, W. (ed.). Cambridge, UK: OpenBook Publishers, p. 75-94

    Research output: Chapter in Book/Report/Conference proceedingChapter

    Open Access
  • Climate variability and aridity modulate the role of leaf shelters for arthropods: a global experiment

    Romero, G. Q., Gonçalves-Souza, T., Roslin, T., Marquis, RJ., Marino, N. A. C., Novotny, V., Cornelissen, T., Orivel, J., Sui, S., Aires, G., Antoniazzi, R., Dáttilo, W., Breviglieri, CP. B., Busse, A., Gibb, H., Izzo, T. J., Kadlec, T., Kemp, V., Kersch-Becker, M., Knapp, M., & 33 othersKratina, P., Luke, R., Majnarić, S., Maritz, R., Mateus Martins, P., Mendesil, E., Michalko, J., Mrazova, A., Novais, S., Pereira, C. C., Perić, M. S., Petermann, J. S., Ribeiro, S. P., Sam, K., Trzcinski, M. K., Vieira, C., Westwood, N., Bernaschini, M. L., Carvajal, V., González, E., Jausoro, M., Kaensin, S., Ospina, F., Cristóbal-Pérez, E. J., Quesada, M., Rogy, P., Srivastava, DS., Szpryngiel, S., Tack, A. J. M., Teder, T., Videla, M., Viljur, M. L. & Koricheva, J., Jun 2022, In: Global Change Biology. 28, 11, p. 3694-3710 17 p.

    Research output: Contribution to journalArticlepeer-review

    Open Access
  • Herbivory on the pedunculate oak along an urbanization gradient in Europe: Effects of impervious surface, local tree cover, and insect feeding guild

    Valdés-Correcher, E., Popova, A., Galmán, A., Prinzing, A., Selikhovkin, A., Howe, A., Mrazova, A., Dulaurent, A-M., Hampe, A., Tack, A., Bouget, C., Lupastean, D., Harvey, D., Musolin, D., Lövei, G. L., Centenaro, G., Halder, I., Hagge, J., Dobrosavljević, J., Pitkänen, J-M., & 23 othersKoricheva, J., Sam, K., Barbaro, L., Branco, M., Ferrante, M., Faticov, M., Tahadlová, M., Gossner, M., Cauchoix, M., Bogdziewicz, M., Duduman, M-L., Kozlov, M. D., Bjoern, M., Mamaev, N., Fernandez-Conradi, P., Thomas, B., Wetherbee, R., Green, S., Milanović, S., Moreira, X., Mellerin, Y., Kadiri, Y. & Castagneyrol, B., 14 Mar 2022, (E-pub ahead of print) In: Ecology and Evolution. e8709.

    Research output: Contribution to journalArticlepeer-review

    Open Access