Pekka Helle

ELF Communications System Ecological Monitoring Program: Bird Species and Communities: Annual Report 1992

JoAnn M. Hanowski, Gerald J. Niemi, Patrick T. Collins, 2015 .

The interactions of predator and hare populations in Finland — a study based on wildlife monitoring counts

Kaarina Kauhala, Pekka Helle, K. Kauhala, 2000 .

Heterospecific attraction affects community structure and migrant abundances in northern breeding bird communities

Gerald J. Niemi, Mikko Mönkkönen, Pekka Helle, 1997 .

Persistence of Capercaillie (Tetrao urogallus) lekking areas depends on forest cover and fine-grain fragmentation of boreal forest landscapes

Ari Nikula, Pekka Helle, Harto Lindén, 2011 .

Introducing accessibility analysis in mapping cultural ecosystem services

Jan Hjort, Ossi Kotavaara, Pekka Helle, 2016 .

Numerical and behavioural responses of migrant passerines to experimental manipulation of resident tits (Parus spp.): heterospecific attraction in northern breeding bird communites?

Mikko Mönkkönen, Pekka Helle, M. Mönkkönen, 1990, Oecologia.

Capercaillie (Tetrao urogallus) Lekking sites in fragmented Finnish forest landscape

Pekka Helle, Harto Lindén, P. Helle, 1994 .