Dr. Rätti, Osmo

Senior scientist, PhD

Arctic Global Change research group /  Arktinen globaalimuutos

Tel. +358 (0)40 013 8804, (2776)
Email: forename.surname @ ulapland.fi

Focus of Research: Population ecology / Populaatioekologia

Osmo Rätti a long research background in northern and arctic ecology. His main research interest in recent years has been different aspects of grouse population ecology. Especially, He has studied the impact of parasites and diseases on population density changes of grouse. Also, he is Vice Director of the Arctic Centre.

  • Causes of grouse population fluctuations / Metsäkanalintujen kannanvaihteluiden syyt    
  • Sustainable harvesting of grouse populations / Metsäkanalintukantojen kestävä metsästysverotus
  • Parasite-vector-host interaction (blood parasites, black flies, grouse) / Loisen, väli-isännän ja isännän väliset vuorovaikutukset
  • Habitat fragmentation and population genetics of grouse / Elinympäristön pirstoutumisen vaikutus metsäkanalintujen populaatiogenetiikkaan
  • Epidemiology of viruses in birds / Virusten epidemiologia linnuissa

Keywords: population ecology, grouse, genetics, parasites, viruses, habitat fragmentation, hunting / populaatioekologia, metsäkanalinnut, genetiikka, loiset, virukset, elinympäristön pirstoutuminen, metsästys

Project: Effects of parasites on population dynamics of grouse / Loisten vaikutus metsäkanalintujen kannanvaihteluihin

Recent publications:

  • Jalava, K., Sane, J., Ollgren, J., Ruuhela, R., Rätti, O., Kurkela, S., Helle, P., Hartonen, S., Pirinen, P., Vapalahti, O. & Kuusi, M. (2013) Climatic, ecological and socioeconomical factors as predictors of Sindbis virus infections in Finland. Epidemiology and Infection, 141, 1857-1866.
  • Isomursu, M., Rätti, O., Liukkonen, T. & Helle, P. (2012) Susceptibility to intestinal parasites and juvenile survival are correlated with multilocus microsatellite heterozygosity in the Capercaillie (Tetrao urogallus). Ornis Fennica, 89, 109-119.
  • Rajala, M., Kareksela, S., Rätti, O. & Suhonen, J. (2012) Age-dependent responses to alarm calls depend on foraging activity in Willow Tits Poecile montanus. Ibis, 154, 189-194.
  • Walker, T.R., Crittenden, P.D., Dauvalter, V.A., Jones, V., Kuhry, P., Loskutova, O., Mikkola, K., Nikula, A., Patova, E., Ponomarev, V.I., Pystina, T., Rätti, O., Solovieva, N., Stenina, A., Virtanen, T. & Young, S.D. (2009) Multiple indicators of human impacts on the environment in the Pechora Basin, north-eastern European Russia. Ecological Indicators, 9, 765-779.
  • Isomursu, M., Rätti, O., Helle, P. & Hollmén, T. (2008) Parasitized grouse are more vulnerable to predation as revealed by a dog-assisted hunting study. Annales Zoologici Fennici, 45, 496-502.
  • Lindh, E., Huovilainen, A., Rätti, O., Ek-Kommonen, C., Sironen, T., Huhtamo, E., Pöysä, H., Vaheri, A. & Vapalahti, O. (2008) Orthomyxo-, paramyxo- and flavivirus infections in wild waterfowl in Finland. Virology Journal, 5, 35.
  • Kurkela, S., Rätti, O., Huhtamo, E., Uzcátegui, N.Y., Nuorti, J.P., Laakkonen, J., Manni, T., Helle, P., Vaheri, A. & Vapalahti, O. (2008) Sindbis virus infection in resident birds, migratory birds, and humans, Finland. Emerging Infectious Diseases, 14, 41-47.
  • Reeves, W.K., Adler, P.H., Rätti, O., Malmqvist, B. & Strasevicius, D. (2007) Molecular detection of Trypanosoma (Kinetoplastida: Trypanosomatidae) in black flies (Diptera: Simuliidae). Comparative Parasitology, 74, 171-175.
  • Isomursu, M., Rätti, O., Helle, P. & Hollmén, T. (2006) Sex and age influence intestinal parasite burden in three boreal grouse species. Journal of Avian Biology, 37, 516-522.
  • Rätti, O., Ojanen, U. & Helle, P. (2006) Increasing group size dilutes black fly attack rate in black grouse. Ornis Fennica, 83, 86-90.
  • Liukkonen-Anttila, T., Rätti, O., Kvist, L., Helle, P. & Orell, M. (2004) Lack of genetic structuring and subspecies differentiation in the capercaillie (Tetrao urogallus) in Finland. Annales Zoologici Fennici, 41, 619-633.
  • Caizergues, A., Rätti, O., Helle, P., Rotelli, L., Ellison, L. & Rasplus, J.-Y. (2003) Population genetic structure of male black grouse (Tetrao tetrix L.) in fragmented vs. continuous landscapes. Molecular Ecology, 12, 2297-2305.
  • Rajala, M., Rätti, O. & Suhonen, J. (2003) Age differences in the response of willow tits (Parus montanus) to conspecific alarm calls. Ethology, 109, 501-509.
  • Ojanen, U., Rätti, O., Adler, P.H., Kuusela, K., Malmqvist, B. & Helle, P. (2002) Blood feeding by black flies (Diptera: Simuliidae) on the black grouse (Tetrao tetrix) in Finland. Entomologica Fennica, 13, 153-158.