Abstract

In the Nordic countries, the wood-living lucanid beetle Ceruchus chrysomelinus is a rare species connected to natural forests. In Sweden, it is red-listed and classified as endangered (EN). In an action plan for its preservation done by the Swedish Environmental Protection Agency, it was suggested that the result of a translocation of C. chrysomelinus made in 1995 should be evaluated. The translocation was done by moving some logs containing high numbers of the beetle into an area devoid of the species but with expected suitable habitat. Our aim was thus to study this translocation, and specifically we asked if the establishment has been successful, how much the species have dispersed, which wood qualities the species use and how large supply of suitable wood there is on the site. The study was performed during 2012 in Pansaruddens nature reserve, a spruce dominated forest close to Uppsala in Sweden. Circular study plots were established with a radius of 75 m around the translocated logs in both sites. All lying dead wood trunks ≥10 cm in breast height within the study plots were investigated. Generalized linear models showed that the presence of C. chrysomelinus could be explained by high degree of decay, absence of white rot and by a large size of the log. The species had dispersed, but only very short distances were detected (<10 m from the translocated logs). On average the total amount of lying dead wood for the two study plots were 52 respectively 35 m3/hectare. Only 4 % of the total dead wood supply was suitable for C. chrysomelinus, when considering the wood qualities found important for the species in this study.

Published in

Entomologisk tidskrift
2013, Volume: 134, number: 4, pages: 207-220

SLU Authors

• Karlsson, Malin

  • Department of Ecology, Swedish University of Agricultural Sciences
    

• Jonsell, Mats

  • Department of Ecology, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Zoology
Forest Science
Ecology


Permanent link to this page (URI)

https://res.slu.se/id/publ/51105