| Landscape fragmentation and forest composition effects on grouse breeding success in boreal forests S Kurki, A Nikula, P Helle, H Lindén Ecology 81 (7), 1985-1997, 2000 | 344 | 2000 |
| Abundances of red fox and pine marten in relation to the composition of boreal forest landscapes S Kurki, ARI Nikula, P Helle, H Linden Journal of animal ecology 67 (6), 874-886, 1998 | 262 | 1998 |
| Top predators, mesopredators and their prey: interference ecosystems along bioclimatic productivity gradients B Elmhagen, G Ludwig, SP Rushton, P Helle, H Lindén Journal of Animal Ecology 79 (4), 785-794, 2010 | 219 | 2010 |
| Short-and long-term population dynamical consequences of asymmetric climate change in black grouse GX Ludwig, RV Alatalo, P Helle, H Lindén, J Lindström, H Siitari Proceedings of the Royal Society B: Biological Sciences 273 (1597), 2009-2016, 2006 | 216 | 2006 |
| Population trends of North Finnish land birds in relation to their habitat selection and changes in forest structure P Helle, O Järvinen Oikos, 107-115, 1986 | 179 | 1986 |
| Numerical and behavioural responses of migrant passerines to experimental manipulation of resident tits (Parus spp.): heterospecific attraction in northern … M Mönkkönen, P Helle, K Soppela Oecologia 85, 218-225, 1990 | 161 | 1990 |
| Ecological sustainability of birds in boreal forests G Niemi, JA Hanowski, P Helle, R Howe, M Mönkkönen, L Venier, ... Conservation Ecology 2 (2), 1998 | 149 | 1998 |
| Breeding success of black grouse and capercaillie in relation to mammalian predator densities on two spatial scales S Kurki, P Helle, H Lindén, A Nikula Oikos, 301-310, 1997 | 148 | 1997 |
| Population genetic structure of male black grouse (Tetrao tetrix L.) in fragmented vs. continuous landscapes A Caizergues, O Rätti, P Helle, L Rotelli, L Ellison, JY Rasplus Molecular Ecology 12 (9), 2297-2305, 2003 | 147 | 2003 |
| Invertebrate numbers in edges between clear-fellings and mature forests in northern Finland. P Helle, J Muona | 144 | 1985 |
| Introducing accessibility analysis in mapping cultural ecosystem services T Ala-Hulkko, O Kotavaara, J Alahuhta, P Helle, J Hjort Ecological indicators 66, 416-427, 2016 | 123 | 2016 |
| Sindbis virus infection in resident birds, migratory birds, and humans, Finland S Kurkela, O Rätti, E Huhtamo, NY Uzcátegui, JP Nuorti, J Laakkonen, ... Emerging infectious diseases 14 (1), 41, 2008 | 121 | 2008 |
| Forest succession and bird communities: theoretical aspects and practical implications P Helle Biogeography and ecology of forest bird communities, 1990 | 113 | 1990 |
| Large‐scale forest corridors to connect the taiga fauna to Fennoscandia H Lindén, PI Danilov, AN Gromtsev, P Helle, EV Ivanter, J Kurhinen Wildlife biology 6 (3), 179-188, 2000 | 105 | 2000 |
| Mixed-species foraging aggregations and heterospecific attraction in boreal bird communities M Mönkkönen, JT Forsman, P Helle Oikos, 127-136, 1996 | 105 | 1996 |
| Heterospecific attraction and food resources in migrants' breeding patch selection in northern boreal forest JT Forsman, M Mönkkönen, P Helle, J Inkeröinen Oecologia 115, 278-286, 1998 | 103 | 1998 |
| Heterospecific attraction affects community structure and migrant abundances in northern breeding bird communities M Mönkkönen, P Helle, GJ Niemi, K Montgomery Canadian Journal of Zoology 75 (12), 2077-2083, 1997 | 95 | 1997 |
| Predator control and the density and reproductive success of grouse populations in Finland K Kauhala, P Helle, E Helle Ecography 23 (2), 161-168, 2000 | 87 | 2000 |
| Predation as a landscape effect: the trading off by prey species between predation risks and protection benefits M Mönkkönen, M Husby, R Tornberg, P Helle, RL Thomson Journal of animal ecology 76 (3), 619-629, 2007 | 83 | 2007 |
| Relationship of the Common Treecreeper Certhia familiaris to edge effect and forest fragmentation M Kuitunen, P Helle Ornis Fennica 65 (4), 150–155-150–155, 1988 | 76 | 1988 |
