Timo Pakkala
timo.pakkala@uef.fi
Julkaisut
10 kappaletta-
Pilot Study of Sap Properties of Norway Spruce (Picea abies (L.) Karst.) Trees Used and Not Used for Sap-Feeding by Three-Toed Woodpeckers (Picoides tridactylus)
Jyske, Tuula; Keinänen, Sini; Hölttä, Teemu; Lintunen, Anna; Pranovich, Andrey; Laakso, Tapio; Suuronen, Jussi-Petteri; da Silva Viana, Gabriel; Pakkala, Timo. 2022. Forests. 13: -
Nest tree characteristics of Grey-headed Woodpeckers (Picus canus) in boreal forests
Pakkala, Timo; Tiainen, Juha; Pakkala, Heikki; Piha, Markus; Kouki, Jari. 2020. Ornis fennica. 97: 89-100 -
Hole life: survival patterns and reuse of cavities made by the Lesser Spotted Woodpecker Dendrocopos minor
Pakkala, Timo; Tiainen, Juha; Piha, Markus; Kouki, Jari. 2019. Ardea. 107: 173-181 -
Nest tree characteristics of the Lesser Spotted Woodpecker (Dendrocopos minor) in boreal forest landscapes
Pakkala, Timo; Tiainen, Juha; Pakkala, Heikki; Piha, Markus; Kouki, Jari. 2019. Ornis fennica. 96: 169-181 -
Three-toed Woodpecker cavities in trees: A keystone structural feature in forests shows decadal persistence but only short-term benefit for secondary cavity-breeders
Pakkala, Timo; Tiainen, Juha; Piha, Markus; Kouki, Jari. 2018. Forest ecology and management. 413: 70-75 -
Tree Sap as an Important Seasonal Food Resource for Woodpeckers: The Case of the Eurasian Three-Toed Woodpecker (Picoides tridactylus) in Southern Finland
Pakkala, Timo; Piiroinen, Jarmo; Lakka, Johanna; Tiainen, Juha; Piha, Markus; Kouki, Jari. 2018. Annales zoologici Fennici. 55: 79-92 -
Phloem sap in re-damaged Scots pine trees provides instant foraging opportunities for Three-toed Woodpeckers Picoides tridactylus
Pakkala Timo, Kouki Jari, Piha Markus, Tilainen Juha. 2017. Ornis Svecica. 27: 144-149 -
The importance of nesting cavity and tree reuse in the three-toed woodpecker Picoides tridactylus in dynamic forest landscapes
Pakkala Timo, Tiainen Juha, Kouki Jari. 2017. Annales zoologici Fennici. 54: 175-191 -
Indicators of forest biodiversity: which bird species predict high breeding bird assemblage diversity in boreal forests at multiple spatial scales?
Pakkala Timo, Lindén Andreas, Tiainen Juha, Tomppo Erkki, Kouki Jari. 2014. Annales zoologici Fennici. 51: 457-476 -
Spatial ecology of breeding birds in forest landscapes: an indicator species approach
Pakkala Timo. 2012. Dissertationes forestales