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Auteur Raimo Virkkala |
Documents disponibles écrits par cet auteur (5)
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Article
Raimo Virkkala, Auteur ; Risto K. Heikkinen, Auteur ; Aleksi Lehikoinen, Auteur ; Jari Valkama, AuteurSpecies inhabiting high-latitude environments are anticipated to be exceptionally vulnerable to climate change because of the greater temperature increases projected for these regions. Earlier studies based on bioclimatic envelope models and bir[...]![]()
Article
Risto K. Heikkinen, Auteur ; Juha Poyry, Auteur ; Raimo Virkkala, Auteur ; Greta Bocedi, Auteur ; Mikko Kuussaari, Auteur ; Oliver Schweiger, Auteur ; Josef Settele, Auteur ; Justin M. J. Travis, AuteurSuccess rates for conservation translocations of species are low and there is a need for increased understanding of how this activity is best applied. Here, using static species distribution models and a spatially-explicit dynamic simulation mod[...]![]()
Article
Raimo Virkkala, Auteur ; Risto K. Heikkinen, Auteur ; Niko Leikola, Auteur ; Miska Luoto, AuteurClimate change is projected to be particularly strong in the northern latitudes. Thus, boreal or arctic species are especially susceptible to the effects of climate warming. In this work we forecasted changes in the distributions of 27 northern [...]![]()
Article
Raimo Virkkala, Auteur ; Ari Rajasarkka, AuteurThe significance of reserves in maintaining forest bird species of conservation concern (N=36) was studied by large-scale quantitative line transect bird censuses in Finland, which stretches 1100 km through the boreal zone from the hemiboreal to[...]![]()
Article
Raimo Virkkala, AuteurBreeding waterbird populations were studied in a boreal lake system between 1986 and 2012 to find out whether there are differences in temporal trends and spatial variation between waterfowl, grebe, diver and gull species. The study was based on[...]



