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Ilmari Valovirta
Researcher at University of Helsinki
Publications - 15
Citations - 224
Ilmari Valovirta is an academic researcher from University of Helsinki. The author has contributed to research in topics: Freshwater pearl mussel & Margaritifera. The author has an hindex of 9, co-authored 15 publications receiving 199 citations. Previous affiliations of Ilmari Valovirta include American Museum of Natural History.
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Climate Warming as a Possible Trigger of Keystone Mussel Population Decline in Oligotrophic Rivers at the Continental Scale.
Ivan N. Bolotov,Ivan N. Bolotov,Alexander A. Makhrov,Mikhail Yu. Gofarov,Mikhail Yu. Gofarov,Olga V. Aksenova,Olga V. Aksenova,Paul E. Aspholm,Yulia V. Bespalaya,Yulia V. Bespalaya,Mikhail B. Kabakov,Yulia S. Kolosova,Yulia S. Kolosova,Alexander V. Kondakov,Alexander V. Kondakov,Thomas Ofenböck,Andrew N. Ostrovsky,Andrew N. Ostrovsky,Igor Popov,Ted von Proschwitz,Mudīte Rudzīte,Māris Rudzītis,Svetlana E. Sokolova,Ilmari Valovirta,Ilya V. Vikhrev,Ilya V. Vikhrev,Maxim V. Vinarski,A. A. Zotin +27 more
TL;DR: Spatial and temporal modeling of the relationship between shell convexity and population status show that global climate change could have accelerated the population decline of pearl mussels over the last 100 years through rapidly decreasing suitable distribution areas, and predicts future warming-induced range reduction, particularly in southern regions.
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Geographical distribution of the small mussels (Sphaeriidae) in North Europe (Denmark, Faroes, Finland, Iceland, Norway and Sweden)
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Conservation methods for populations of Margaritifera margaritifera (L.) in Finland
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Shell morphometry, pre-mortal taphonomy and ontogeny-related growth characteristics of freshwater pearl mussel in northern Finland
Samuli Helama,Ilmari Valovirta +1 more
TL;DR: It is theorized that the over 60-year-old mussels are better hedged against the potential hydrological changes resulting from climat change than younger individuals.
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Late Holocene climatic variability reconstructed from incremental data from pines and pearl mussels - a multi-proxy comparison of air and subsurface temperatures
Samuli Helama,Alar Läänelaid,Hanna Tietäväinen,Marc Macias Fauria,Ilmo Kukkonen,Jari Holopainen,Jan Kresten Nielsen,Ilmari Valovirta +7 more
TL;DR: Helama et al. as mentioned in this paper presented a multi-proxy reconstruction of temperature histories using a combination of dendrochronological and sclerochronological evidence, and the reconstruction correlated well with the long records of instrumental temperatures from Tornedalen, St. Petersburg, Uppsala and Stockholm.