Ranius, Thomas
- Sveriges lantbruksuniversitet, Sveriges lantbruksuniversitet
Sammanfattning
Forestry decreases the amount of dead wood, thereby threatening the persistence of many saproxylic (wood-living) organisms. In this article, we discuss how targets for efforts to maintain and restore dead wood in managed forest landscapes should be defined. We found several studies suggesting extinction thresholds for saproxylic organisms. However, because the thresholds differ among species, the relationship between species richness and habitat amount at the local scale is probably described by a smoothly increasing curve without any distinct threshold. The most demanding species require amounts of dead wood that are virtually impossible to reach in managed forests. This means that unmanaged protected forests are needed. In managed forests, conservation efforts should focus on the landscape scale and on certain types of dead wood, but it is impossible to come up with any particular amount of dead wood that is desirable at the forest stand level.
Nyckelord
beetles; ecological thresholds; occurrence patterns; saproxylic; species richness
Publicerad i
Scandinavian Journal of Forest Research
2006, nummer: 21
Utgivare: Taylor & Francis
SLU författare
UKÄ forskningsämne
Ekologi
Publikationens identifierare
- DOI: https://doi.org/10.1080/02827580600688269
Permanent länk till denna sida (URI)
https://res.slu.se/id/publ/123998