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Extinction risk of wood-living model species in forest landscapes as related to forest history and conservation strategy

Ranius, Thomas and Kindvall, Oskar (2006). Extinction risk of wood-living model species in forest landscapes as related to forest history and conservation strategy. Landscape ecology. 21:5, 687-698
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Abstract

Dead wood is a critical resource for biodiversity in boreal forests. We analysed the persistence of five model species inhabiting dead wood. By parameterising a metapopulation model (the incidence function model), the model species were all assigned characteristics that makes it likely that they have disappeared from some (20%) forest landscapes with a long history of forest management. In the metapopulation model, a forest stand (5 ha) was regarded as a habitat patch. The amount of habitat in each patch was obtained from models of dead wood dynamics of Norway spruce in central Sweden. Dead wood generated by altered management over the entire landscape was found to be less efficient in reducing extinction risks in comparison to the same amount of dead wood generated by protecting reserves. Because generation of dead wood by altered management is often less expensive than setting aside reserves, it is difficult to determine which conservation measure is most cost-efficient. In a landscape subjected to forestry for the first time, it was better to preserve a few large reserves than many small ones. However, in a managed, highly fragmented forest landscape it was better to set aside many small reserves. The reason for this was that small plots with high habitat quality could be selected, while large reserves originally contained habitats both of high and low quality, and the rate of habitat quality increase was low. A strategy for biodiversity conservation in a managed forest landscape should include information about the history of the landscape, the current amount and spatial distribution of forest habitats, and the potential for rapid restoration of forest habitats, both on managed and unmanaged forest land.

Authors/Creators:Ranius, Thomas and Kindvall, Oskar
Title:Extinction risk of wood-living model species in forest landscapes as related to forest history and conservation strategy
Series/Journal:Landscape ecology (0921-2973)
Year of publishing :2006
Volume:21
Number:5
Page range:687-698
Publisher:Springer Verlag
ISSN:0921-2973
Language:English
Additional Information:The original publication is available at www.springerlink.com
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Accepted version
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
Obsolete subject words > NATURAL SCIENCES > Biology > Terrestrial, freshwater and marine ecology > Terrestrial ecology
Keywords:SLOSS, coarse woody debris, population viability analysis
URN:NBN:urn:nbn:se:slu:epsilon-e-38
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-38
ID Code:8043
Department:(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology
Deposited By: Thomas Ranius
Deposited On:11 Apr 2011 14:06
Metadata Last Modified:02 Dec 2014 10:45

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