Table 4 Search string used for supplemental searches in Web of Science Core Collections and Scopus up to 2014

Population terms

(forest* OR woodland* OR “wood* pasture*” OR “wood* meadow*”)

AND

Intervention terms

((prescribed OR control* OR experiment*) AND (burn* OR fire))

AND

Outcome terms

(*diversity OR (species AND (richness OR focal OR target OR keystone OR umbrella OR red-list* OR threatened OR endangered OR rare)) OR “species density” OR “number of species” OR indicator* OR abundance OR “forest structure” OR habitat*)

NOT

Forest type terms

(boreal OR boreonemoral OR hemiboreal OR nemoral OR temperate OR conifer* OR deciduous OR broadlea* OR “mixed forest” OR spruce OR “Scots pine” OR birch OR aspen OR beech OR “Quercus robur” OR Swed*)