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Inari Ylläsjärvi (email), Håkan Berglund, Timo Kuuluvainen

Relationships between wood-inhabiting fungal species richness and habitat variables in old-growth forest stands in the Pallas-Yllästunturi National Park, northern boreal Finland

Ylläsjärvi I., Berglund H., Kuuluvainen T. (2011). Relationships between wood-inhabiting fungal species richness and habitat variables in old-growth forest stands in the Pallas-Yllästunturi National Park, northern boreal Finland. Silva Fennica vol. 45 no. 5 article id 83. https://doi.org/10.14214/sf.83

Abstract

Indicators for biodiversity are needed for efficient prioritization of forests selected for conservation. We analyzed the relationships between 86 wood-inhabiting fungal (polypore) species richness and 35 habitat variables in 81 northern boreal old-growth forest stands in Finland. Species richness and the number of red-listed species were analyzed separately using generalized linear models. Most species were infrequent in the studied landscape and no species was encountered in all stands. The species richness increased with 1) the volume of coarse woody debris (CWD), 2) the mean DBH of CWD and 3) the basal area of living trees. The number of red-listed species increased along the same gradients, but the effect of basal area was not significant. Polypore species richness was significantly lower on western slopes than on flat topography. On average, species richness was higher on northern and eastern slopes than on western and southern slopes. The results suggest that a combination of habitat variables used as indicators may be useful in selecting forest stands to be set aside for polypore species conservation.

Keywords
indicators; old-growth forest; northern Fennoscandia; polyporaceae; polypores; species-area relationship; species richness

Author Info
  • Ylläsjärvi, Rovaniemi University of Applied Sciences, School of Forestry and Rural Industries, Jokiväylä 11 c, FI-96300 Rovaniemi, Finland ORCID ID:E-mail inari.yllasjarvi@ramk.fi (email)
  • Berglund, University of Helsinki, Department of Forest Sciences, Helsinki, Finland ORCID ID:
  • Kuuluvainen, University of Helsinki, Department of Forest Sciences, Helsinki, Finland ORCID ID:

Received 2 November 2010 Accepted 10 October 2011 Published 31 December 2011

Available at https://doi.org/10.14214/sf.83 | Download PDF

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