Forest restoration guided by an umbrella species

摘要: Management shortcuts in conservation biology, like the umbrella species concept, have been debated worldwide. Umbrella used to identify and delineate protective areas, but habitat requirements of can also provide tangible targets ecological restoration. In Sweden, forest habitats restored for white-backed woodpecker (WBW, Dendrocopos leucotos) under assumption that it will benefit other habitat-associated (background) species. this thesis, concept was evaluated based on response wood-inhabiting (saproxylic) beetles restoration WBW. The WBW is a top-predator saproxylic food webs associated with broadleaved trees, critically endangered Sweden because commercial forestry practices disadvantage trees reduce dead wood availability. Spruce (Norway spruce, Picea abies) were selectively harvested during make way birch (Betula spp.) European aspen (Populus tremula). Some killed create high-stumps (snags) downed logs. Commercially managed forests compared forests; either directly comparative studies, or before after Two types flight-intercept traps catch beetles: IBL2-traps trunk-window traps. Results presented thesis show an be guide There many beneficiary at stand-level. inhabited by different communities beetles, positively sun-exposed substrates particularly responsive. This reflected increased richness abundance. Several near-threatened vulnerable attracted created shows efforts bring back resource-limited groups concern. Saproxylic might even facilitate since important prey sites. Umbrella species, WBW, require landscape-level recover. strength weakness are time consuming. still struggling failed attempts re-establish viable populations undermine incentives. Early signs progress, however, sometimes provided less demanding thesis. Background much needed examples success