Table 4 The eligibility criteria for article screening for the study question 1

Population

Included: Boreal forests in Fennoscandia and European Russia

Exposure

Included: Even-aged and uneven-aged management

Comparators

Included: Different forest management regimes, including retention forestry, and areas with no intervention, including protected forest areas, national parks

Excluded: Non-forest lands, e.g. agricultural areas, parks in urban areas, wooded fields, e.g. christmas tree plantations

Outcomes

Included: Species richness, species diversity, abundance

Excluded: Community composition indices

Study design

Included: Before-after (BA), control-intervention studies (CI), and studies combining both (BACI). Also, randomized controlled trials (RCT).