Forthcoming

Seppälä O. & Jokela J. Maintenance of genetic variation in immune defense of a freshwater snail: role of environmental heterogeneity. Evolution (in press)

Karvonen A., Halonen H. & Seppälä O. Priming of host resistance to protect cultured rainbow trout against eye flukes and parasite-induced cataracts. Journal of Fish Biology (in press)

2009

Karvonen A., Seppälä O. & Valtonen E.T. 2009. Host immunization shapes interspecific associations in trematode parasites. Journal of Animal Ecology 78, 945-952.

Benesh D.P., Seppälä O. & Valtonen E.T. 2009. Acanthocephalan size and sex affect the modification of intermediate host coloration. Parasitology 136, 847-854.

Seppälä O., Karvonen A., Valtonen E.T. & Jokela J. 2009. Interactions among co-infecting parasite species: a mechanism maintaining genetic variation in parasites? Proceedings of the Royal Society B 276, 691-697.

Benesh D.P., Hasu T., Seppälä O. & Valtonen E.T. 2009. Seasonal changes in host phenotype manipulation by an acanthocephalan: time to be transmitted? Parasitology 136, 219-230.

2008

Seppälä O. & Jokela J. 2008. Host manipulation as a parasite transmission strategy when manipulation is exploited by non-host predators. Biology Letters 4, 663-666.

Seppälä O., Valtonen E.T. & Benesh D.P. 2008. Host manipulation by parasites in the world of dead-end predators: adaptation to enhance transmission? Proceedings of the Royal Society B 275, 1611-1615.

Karvonen A. & Seppälä O. 2008. Effect of eye fluke infection on the growth of whitefish (Coregonus lavaretus) - an experimental approach. Aquaculture 279, 6-10.

Karvonen A. & Seppälä O. 2008. Eye fluke infection and lens size reduction in fish: a quantitative analysis. Diseases of Aquatic Organisms 80, 21-26.

Seppälä O., Liljeroos K., Karvonen A. & Jokela J. 2008. Host condition as a constraint for parasite reproduction. Oikos 117, 749-753.

Benesh D.P., Valtonen E.T. & Seppälä O. 2008. Multidimensionality and intra-individual variation in host manipulation by an acanthocephalan. Parasitology 135, 617-626.

Seppälä O., Karvonen A. & Valtonen E.T. 2008. Shoaling behaviour of fish under parasitism and predation risk. Animal Behaviour 75, 145-150.

2007

Santos M.J., Karvonen A., Pedro J.C., Faltýnková A., Seppälä O. & Valtonen E.T. 2007. Qualitative and quantitative behavioral traits in a community of furcocercarial trematodes – tools for species separation? Journal of Parasitology 93, 1319-1323.

Vainikka A., Rantala M.J., Seppälä O. & Suhonen J. 2007. Do male mealworm beetles, Tenebrio molitor, sustain the honesty of pheromone signals under immune challenge? Acta Ethologica 10, 63-72.

Seppälä O., Karvonen A. & Valtonen E.T. 2007. Phenotypic variation in infectivity of Diplostomum spathaceum cercariae within a population. Journal of Parasitology 93, 1244-1246.

2006

Karvonen A., Savolainen M., Seppälä O. & Valtonen E.T. 2006. Dynamics of Diplostomum spathaceum infection in snail hosts at a fish farm. Parasitology Research 99, 341-345.

Karvonen A., Terho P., Seppälä O., Jokela J. & Valtonen E.T. 2006. Ecological divergence of closely related Diplostomum (Trematoda) parasites. Parasitology 133, 229-235.

Vainikka A., Seppälä O., Löytynoja K. & Rantala M.J. 2006. Fitness consequences of female preference for male pheromones in Tenebrio molitor. Evolutionary Ecology Research 8, 943-957.

Seppälä O., Karvonen A. & Valtonen E.T. 2006. Host manipulation by parasites and risk of non-host predation: is manipulation costly in an eye fluke–fish interaction? Evolutionary Ecology Research 8, 871-879.

Seppälä O., Karvonen A. & Valtonen E.T. 2006. Susceptibility of eye fluke infected fish to predation by bird hosts. Parasitology 132, 575-579.

Karvonen A., Cheng G.-H., Seppälä O. & Valtonen E.T. 2006. Community structure and fecundity of two species of Diplostomum parasites in definitive hosts. Parasitology 132, 357-362.

2005

Seppälä O. 2005. Host manipulation by parasites: adaptation to enhance transmission? Jyväskylä Studies in Biological and Environmental Science 159, 27 p. (PhD thesis, approved with honours)

Seppälä O., Karvonen A. & Valtonen E.T. 2005. Impaired crypsis of fish infected with a trophically transmitted parasite. Animal Behaviour 70, 895-900.

Seppälä O., Karvonen A. & Valtonen E.T. 2005. Manipulation of fish host by eye flukes in relation to cataract formation and parasite infectivity. Animal Behaviour 70, 889-894.

Karvonen A., Paukku S., Seppälä O. & Valtonen, E.T. 2005. Efficiency of acquired resistance against eye flukes: naive versus previously infected fish. Parasitology Research 95, 55-59.

2004

Karvonen A., Seppälä O. & Valtonen E.T. 2004. Eye fluke-induced cataract formation in fish: quantitative analysis using an ophthalmological microscope. Parasitology 129, 473-478.

Karvonen A., Seppälä O. & Valtonen E.T. 2004. Parasite resistance and avoidance behaviour in preventing eye fluke infections in fish. Parasitology 129, 159-164.

Seppälä O., Karvonen A. & Valtonen E.T. 2004. Parasite-induced change in host behaviour and susceptibility to predation in an eye fluke–fish interaction. Animal Behaviour 68, 257-263.

Karvonen A., Hudson P.J., Seppälä O. & Valtonen E.T. 2004. Transmission dynamics of a trematode parasite: exposure, acquired resistance and parasite aggregation. Parasitology Research 92, 183-188.



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