0000000001324862
AUTHOR
Philippe Fayt
Is the Eurasian Three-toed Woodpecker Picoides tridactylus a keystone species in boreal forest environments?
The Eurasian Three-toed Woodpecker Picoides tridactylus is a widespread species of the northern Palearctic forests. The species prefers mature coniferous and mixed forests, favouring forests with a good proportion of dead and dying trees. Three-toed Woodpecker has a close connection to forest habitats with natural dynamics and disturbances; it inhabits areas recently disturbed by fire, wind, snow, or other agents that increase the amount of suitable substrate of its insect prey. Its diet consists predominantly of spruce bark beetles (Coleoptera, Scolytidae), although phloem sap of conifer trees is also used especially in springtime. We present here results of both published and unpublished …
Almost one century of forest inventory data: how bright are the prospects for the Finnish forest biodiversity?
With 73% forest cover and 26.2 million ha of forestry land, Finland is the most forested country in Europe, hence contributing significantly to its forest biodiversity. The forestry land is classified into forest land (20.3 mill. ha), poorly productive forest land (2.5 mill. ha) and unproductive land (3.2 mill. ha), depending on the potential annual increment. The majority of nature conservation areas (3/4 of the land) are located on the poorly productive and unproductive forest land, making them susceptible to fragmentation and isolation as a result of forestry-driven habitat changes on the dominant productive forest land. Here I present a detailed historical overview of ecological changes…