Abrahamsson, Markus
(2007).
High-stumps and wood living beetles in the Swedish production forest landscape.
Diss. (sammanfattning/summary)
Alnarp :
Sveriges lantbruksuniv.,
Acta Universitatis Agriculturae Sueciae, 1652-6880
; 2007:126
ISBN 978-91-85913-25-1
[Doctoral thesis]
![]() |
PDF
2MB |
Abstract
The amount of dead wood in Swedish production forests is low compared to natural forests. This has resulted in a high proportion of red-listed and threatened wood living beetle species. Different actions are taken to increase the amount of dead wood and one such action is to artificially create high-stumps (snags), i.e. living trees cut between 3 and 5 meters height. This thesis focuses on whether high-stumps on clearcuts in southern Sweden increase beetle diversity. One study focus on whether a high-stump offers a different substrate compared to ordinary low-stumps. Another study investigates if beetle species are affected if the high-stumps are pre-rotten or not. Finally, the beetle species number and composition between high-stumps of spruce and birch in biodiversity hotspots and production forest (matrix), respectively. High-stumps have a somewhat different beetle species composition compared to low-stumps (normal cutting stumps), and several species were primarily associated with high-stumps. This justifies the making of high-stumps even though the amount of dead wood they add to a clearcut is low. The pre-rotten spruce high-stumps (infected by Heterobasidion spp.) had a negative effect on some beetle species and none of the analyzed species showed positive associations with Heterobasidion spp. This suggests that increasing the proportion of rotten spruce high-stumps could have a small but negative effect on beetle diversity. The number of beetle species did not differ between high-stumps on hotspot and matrix clearcuts, suggesting that concentrating high-stumps to hotspot areas will not benefit more beetle species. However, the amount of broadleaved forest in the surroundings of clearcuts was important for explaining species composition on high-stumps. The amount of coniferous forest only explained a small part of the beetle species composition, possibly because coniferous forests are dominating the entire forested landscape in southern Sweden. The high-stumps in these studies were four years old at most. This means that, as the wood decay progress, the properties of high-stumps change and potentially they become even more important.
Authors/Creators: | Abrahamsson, Markus | ||||
---|---|---|---|---|---|
Title: | High-stumps and wood living beetles in the Swedish production forest landscape | ||||
Series Name/Journal: | Acta Universitatis Agriculturae Sueciae | ||||
Year of publishing : | 2007 | ||||
Number: | 2007:126 | ||||
Number of Pages: | 34 | ||||
Papers/manuscripts: |
| ||||
Place of Publication: | Alnarp | ||||
ISBN for printed version: | 978-91-85913-25-1 | ||||
ISSN: | 1652-6880 | ||||
Language: | English | ||||
Publication Type: | Doctoral thesis | ||||
Full Text Status: | Public | ||||
Agrovoc terms: | coleoptera, deadwood, stumps, biodiversity, picea abies, betula, heterobasidion annosum, rots, sweden | ||||
Keywords: | high-stumps, saproxylic beetles, Coleoptera, hotspot, matrix, Picea abies, Betula, species composition | ||||
URN:NBN: | urn:nbn:se:slu:epsilon-1905 | ||||
Permanent URL: | http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-1905 | ||||
ID Code: | 1623 | ||||
Department: | (S) > Southern Swedish Forest Research Centre | ||||
Deposited By: | Markus Abrahamsson | ||||
Deposited On: | 16 Nov 2007 00:00 | ||||
Metadata Last Modified: | 02 Dec 2014 10:13 |
Repository Staff Only: item control page