Temporal declines in tree longevity associated with faster lifetime growth rates in boreal forests

Wood ants (Formica rufa group) in managed boreal forests: implications for soil properties and tree growth

Mound-building ants, and especially wood ants (Formica rufa group), are wide-spread key species that affect ecosystem functioning in several ways in the boreal forests of Eurasia. Forest clear-cutting harms wood ants, but the colonies gradually recover and multiply as forest succession proceeds. Thus their impact on ecosystem functioning may change with stand age. The objectives of this thesis ...

the relationship between productivity and tree-ring growth in boreal coniferous forests

1) Centre d’Étude de la Forêt (CEF), Département des Sciences Biologiques, Université du Québec à Montreal, CP 8888 Succ. Centre Ville, Montreal (Qc), H3P 3P8, Canada (*corresponding author’s e-mails: [email protected]; [email protected]) 2) CEREGE UMR 7330, CNRS/Aix-Marseille Université, Europole de l’Arbois, BP 80, F-13545 Aix-enProvence Cedex 4, France 3) Université du Québec en Abitib...

Change Detection in Boreal Forests Using Bi-Temporal Aerial Photographs

Increased need for timely forest information is leading to continuous updating of stand databases. In continuous updating, stand attributes are estimated in the field after an operation and stored in databases. To find the changes caused by operations and forest damage, a semi-automatic method based on bi-temporal aerial photographs was developed. The test data were classified into three classe...

Characterizing woodland caribou habitat in sub-boreal and boreal forests

Woodland caribou (Rangifer tarandus caribou) are sensitive to changes in understory vegetation resulting from forest harvesting and are, therefore, of special concern for foresters and habitat biologists. Effective management of this species requires reliable habitat inventories which, because of the large heterogeneous areas over which caribou range, can be costly. We used Landsat Thematic Map...

Fire histories and tree ages in unmanaged boreal forests in Eastern Fennoscandia and Onega peninsula