Animals 3 Boreal forest 3 Canada 3 Conservation of Natural Resources 3 Diptera 3 Female 3 Fires 3 Forestry 3 Functional assemblages 3 Male 3 North America 3 Ontario 3 Picea 3 Picea mariana 3 Platycheirus rosarum 3 Population Dynamics 3 Population Growth 3 Species Specificity 3 Species richness 3 Syrphidae 3 Toxomerus 3 Variable retention harvesting 3 Xylota annulifera 3 abundance 3 animal 3 article 3 boreal forest 3 community composition 3 community response 3 coniferous forest 3