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Personal profile

Description of research and teaching

Insects dominate the world, both in terms of abundance and diversity. In my research, I have therefore focused on the processes that structure insect populations and communities worldwide. During the last few years, I have been particularly interested in how the spatial context may affect interactions between plants, herbivorous insects and their natural enemies. While much of classical herbivore-plant ecology has been focusing on the role of local host plant quality as a determinant of herbivore densities, my colleagues and I have been able to partition spatiotemporal variation in host plant quality into different hierarchical levels, to show that variation among host plant individuals is frequently secondary to variation at other levels, and to ascribe regional patterns in herbivore distribution and abundance to spatial population processes beyond the previous top-bottom paradigm. In addition to showing effects on ecological population dynamics, we have also demonstrated how spatial context affects microevolutionary processes such as local adaptation. Overall, I believe that these insights pave the way for a novel, more dynamic view on trophic interactions in spatially structured landscapes. They also help identify how and why human modification of the landscape may affect interactions among species.

In my latest research, I have increasingly used quantitative food webs as descriptors of how insects interact with other trophic levels. As key initiatives, I aim to address general patterns across multiple local food webs, and to link food web structure to food web functioning. For more information on our research group, click here.

In terms of instruction, I currently serve as a University Lecturer, teaching regular courses on ecological processes in agricultural landscapes. I have also trained students in communicating their scientific findings to a broader audience than traditional academia.

Keywords

  • 4111 Agronomy
  • Agrobiodiversity
  • Agroecology
  • 1181 Ecology, evolutionary biology
  • Spatial dynamics
  • Insect-plant interactions
  • Quantitative food webs
  • Habitat fragmentation
  • Metacommunities

International and National Collaboration Publications and projects within past five years.

Selected Publications 2004 2019

One fly to rule them all-muscid flies are the key pollinators in the Arctic

Tiusanen, M., Hebert, P. D. N., Schmidt, N. M. & Roslin, T., 28 Sep 2016, In : Proceedings of the Royal Society B. Biological Sciences. 283, 1839, 8 p., 20161271.

Research output: Contribution to journalArticleScientificpeer-review

The role of dung beetles in reducing greenhouse gas emissions from cattle farming

Slade, E. M., Riutta, T., Roslin, T. & Tuomisto, H. L., 5 Jan 2016, In : Scientific Reports. 6, 8 p., 18140.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File

Treating cattle with antibiotics affects greenhouse gas emissions, and microbiota in dung and dung beetles

Hammer, T., Fierer, N., Hardwick, B., Simojoki, A. J., Slade, E. M., Taponen, J., Viljanen, H. M. & Roslin, T. V., May 2016, In : Proceedings of the Royal Society B. Biological Sciences. 283, 1831, 7 p., 20160150.

Research output: Contribution to journalArticleScientificpeer-review

Open Access

Projects 2011 2018

Science of Sustainable Agriculture (SSA)

Ahokas, J. M., Alakukku, L. E., Alitalo, A., Bouquet, A., Chen, L., Egilmez, P. S., Elo, K. T., Hakojärvi, M. J., Hartikainen, H. H., Hautala, M. I., Helenius, J. P., Hepola, H., Herzon, I., Hokkanen, H. M. T., Honkanen, A. M., Hytönen, T. P., Häggman, J., Jaakkola, S. L., Jauni, M. M., Jokela, V. S., Juga, J. K., Kallioniemi, M. K., Kenedy Etone, E., Keskinen, R., Khazaei, H., Kivelä, J. V., Knuutila, O., Kokkonen, T. J., Kostamo, K., Kuisma, R. M. J., Kymäläinen, H., Kärkkäinen, H., Laaksoharju, T. H., Laurila, H. A., Lehtimäki, M. K., Lehto, M. K., Levonmäki, M. M., Liinamo, A., Linden, L. K., Lizarazo Torres, C. I., Ma, M., Makgahlela, M., Mattila, P., Menzler-Hokkanen, I. M., Mikkola, H. J., Muma, E. N., Mäkelä, P. S. A., Määttä, J., Niemelä, T., Nykänen, A., Näsi, J. M., Ojala, M. J., Ooperi, S. M., Pakarinen, A., Palonen, L. P., Pastell, M. E., Peltovuori, T. K., Puustinen, M. S., Rantanen, M., Rappe, E. H., Rasa, K., Riesinger, P., Risku-Norja, H., Ristolainen, A. K., Roslin, T. V., Räty, M., Sairanen, J. K., Salin, S. P. K., Santanen, A., Seleiman, M. F., Seppänen, M. M., Siipola, V., Sillanpää, M. J., Simojoki, A. J., Soinne, H. S., Stoddard, F. L., Suontama, M., Säisä, M., Tallberg, P. A. S., Tammeorg, P., Tamminen, P., Tarmi, S., Teye, F. K., Tiusanen, M. J., Turakainen, M., Tuulos, A., Tyrisevä, A., Valkonen, J. P. T., Vanhatalo, A. O., Venäläinen, S. H., Virtanen, S., Yli-Halla, M. J., Ylivainio, K., Zec-Vojinovic, M. & Zou, L.

24/02/2011 → …

Project: Research Evaluation 2011

Prizes

Academy of Finland Recognition Award

Tomas Valter Roslin (Recipient), 2005

Prize: Prizes and awards

Academy of Finland Recognition Award 2005

Tomas Valter Roslin (Recipient), 10 Nov 2005

Prize: Prizes and awards

Commendation for good thesis supervision

Tomas Valter Roslin (Recipient), 15 Feb 2011

Prize: Prizes and awards

Oskar Öflund Foundation - "The Big Prize"

Tomas Valter Roslin (Recipient), 15 May 2011

Prize: Prizes and awards

Selected Activities 1995 2019

XXV International Congress of Entomology

Tomas Roslin (Speaker: Presenter)
27 Sep 2016

Activity: Participating in or organising an event typesPublic Talks

Ecological Networks: Theory, Empiricism and Practice in a Changing World 2nd international symposium on ecological networks

Tomas Roslin (Speaker: Presenter)
7 Sep 20158 Sep 2015

Activity: Participating in or organising an event typesPublic Talks

The 6th International Barcode of Life Conference

Tomas Roslin (Speaker: Presenter)
18 Aug 201521 Aug 2015

Activity: Participating in or organising an event typesPublic Talks

Press / Media

Lämpenevä ilmasto houkuttelee Ruotsiin uusia vieraslajeja

Tomas Valter Roslin

26/09/201726/09/2017

2 items of media coverage

Press/Media: Press / Media

Vindrutefenomenet - antalet insekter har minskat rejält

Tomas Valter Roslin

09/07/2017

1 media contribution

Press/Media: Press / Media

Nordegren och Epstein i P1

Tomas Valter Roslin

12/09/2016

1 media contribution

Press/Media: Press / Media

Koskiten på Öland – populär bland dyngbaggar

Tomas Valter Roslin

19/08/2016

1 media contribution

Press/Media: Press / Media