Species richness of polypores can be increased by supplementing dead wood resource into a boreal forest landscape
Elo, M., Halme, P., Toivanen, T., & Kotiaho, J. S. (2019). Species richness of polypores can be increased by supplementing dead wood resource into a boreal forest landscape. Journal of Applied Ecology, 56(5), 1267-1277. https://doi.org/10.1111/1365-2664.13364
Julkaistu sarjassa
Journal of Applied EcologyPäivämäärä
2019Tekijänoikeudet
© 2019 The Authors. Journal of Applied Ecology © 2019 British Ecological Society
1. To prevent local species extinction and to counteract population declines, we must ensure
species have access to resources they require for life. This can be done through ecological
restoration where previously depleted resources are reintroduced. If the restoration is
conducted as a one-off action in a large area, it resembles a natural resource pulse, which
should lead to increased abundance of individuals, accompanied possibly by increased
species richness. Species–energy relationship and underlying theory enable predictions
about how different features of resource pulses affect species richness.
2. We conducted a large-scale, controlled, randomized and replicated field experiment to
study the effect of a resource addition on polypore species richness in a previously
managed boreal forest landscape in Finland. We manipulated the amount and distribution
of dead wood and studied the effects on polypore assemblages on added and natural dead
wood during nine years after manipulation (2004–2012).
3. By adding dead wood, species richness grew, mainly through increasing abundances: a
large amount of dead wood resulted in higher abundance, higher number and faster
accumulation of species than a small amount of dead wood.
4. For a given abundance, dead wood addition contained fewer species than natural dead
wood. This is most probably because added dead wood was of low diversity and provided
habitat only for a limited number of species.
5. Species richness on natural dead wood increased substantially during the study period,
and this increase was not related to the resource manipulation. Thus, habitat improvement
through natural succession can occur within a relatively short time period irrespective of
human intervention.
6. Synthesis and applications. We demonstrate how the introduction of dead wood additions
can strengthen polypore populations. The species taking advance of the introduced
resource were primarily common species, instead of rare or red-listed species. Thus, we
recommend ensuring the natural formation of dead wood while the populations of the
common species supporting ecosystem functions can be increased by adding dead wood
in the landscape.
...
Julkaisija
Wiley-Blackwell Publishing Ltd.ISSN Hae Julkaisufoorumista
0021-8901Asiasanat
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Research data of article: Elo et al. 2019 Species richness of polypores can be increased by supplementing dead wood resource into a boreal forest ecosystem.
Elo, Merja; Halme, Panu; Toivanen, Tero; Kotiaho, Janne (University of Jyväskylä, Open Science Centre. jyx@jyu.fi, 2019) -
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