Miska Luoto,^* Seppo Rekolainen,^** Jyrki Aakkula,^*** Juha Pykälä<sup>****


*</sup>Miska Luoto, PhD, is a landscape ecologist at the Finnish Environment Institute. He has experience in the application of spatial analysis and modelling techniques to landscape ecological and biogeographical problems. His present research emphasis is on the use of GIS and remote-sensing data in biodiversity research. His address: Finnish Environment Institute, P.O. Box 140, FIN-00251 Helsinki, Finland. miska.luoto@ymparisto.fi
^**Seppo Rekolainen holds a PhD in limnology from the University of Helsinki and works as a research manager in the Finnish Environment Institute. One of his main scientific interests concern impacts of agriculture on the environment. His address: Finnish Environment Institute, P.O. Box 140, FIN-00251 Helsinki, Finland. seppo.rekolainen@ymparisto.fi
^***Jyrki Aakkula, PhD, is a senior agri-environmental economist at the MTT Agrifood Research Finland. His current research deals with sustainability and biodiversity issues, futures research and the provision of public goods through voluntary agreements. His address: Agrifood Research Finland, P.O. Box 3, FIN-00411 Helsinki, Finland. jyrki.aakkula@mtt.fi
^****Juha Pykälä is a researcher at the Finnish Environment Institute. His primary interest is in biodiversity issues, with recent focus on the effects of livestock grazing on plant species richness. His address: Finnish Environment Institute, P.O. Box 140, FIN-00251 Helsinki, Finland. juha.pykala@ymparisto.fi