Wood-inhabiting beetles in low stumps, high stumps and logs on boreal clear-cuts: implications for dead wood management

PloS One
Jon AnderssonMats Dynesius

Abstract

The increasing demand for biofuels from logging residues require serious attention on the importance of dead wood substrates on clear-cuts for the many forestry-intolerant saproxylic (wood-inhabiting) species. In particular, the emerging harvest of low stumps motivates further study of these substrates. On ten clear-cuts we compared the species richness, abundance and species composition of saproxylic beetles hatching from four to nine year old low stumps, high stumps and logs of Norway spruce. By using emergence traps we collected a total of 2,670 saproxylic beetles among 195 species during the summers of 2006, 2007 and 2009. We found that the species assemblages differed significantly between high stumps and logs all three years. The species assemblages of low stumps, on the other hand, were intermediate to those found in logs and high stumps. There were also significant difference in species richness between the three examined years, and we found significant effect of substrate type on richness of predators and fungivores. As shown in previous studies of low stumps on clear-cuts they can sustain large numbers of different saproxylic beetles, including red-listed species. Our study does, in addition to this fact, highlight a ...Continue Reading

References

May 16, 1998·BMJ : British Medical Journal·T V Perneger
May 16, 2008·Biometrical Journal. Biometrische Zeitschrift·Torsten HothornPeter Westfall
Jan 27, 2011·Ecological Applications : a Publication of the Ecological Society of America·Fredrik StenbackaMats Dynesius
May 17, 2011·The Journal of Animal Ecology·Jan WeslienOlof Widenfalk

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