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How much and at wha...
How much and at what scale? Multiscale analyses as decision support for conservation of saproxylic oak beetles
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- Bergman, Karl-Olof (författare)
- Linköpings universitet,Ekologi,Tekniska högskolan
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- Jansson, Nicklas (författare)
- Linköpings universitet,Institutionen för fysik, kemi och biologi,Tekniska högskolan
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- Claesson, Kenneth (författare)
- County Administration Board of Östergötland, Linköping
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- Palmer, Michael W. (författare)
- Oklahoma State University, Stillwater, USA
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- Milberg, Per (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Linköpings universitet,Ekologi,Tekniska högskolan,Institutionen för växtproduktionsekologi,Department of Crop Production Ecology
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(creator_code:org_t)
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- Elsevier, 2012
- 2012
- Engelska.
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Ingår i: Forest Ecology and Management. - : Elsevier. - 0378-1127 .- 1872-7042. ; 265, s. 133-141
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://res.slu.se/i...
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Abstract
Ämnesord
Stäng
- A key aspect for understanding species distributions is how they respond to habitat factors at different spatial scales. In this study we used a dataset mapping 33,000 large/hollow oaks, habitat for a guild of saproxylic beetles specialised on oaks at an extent of 10,000 km2. A total of 16 oak-dependent saproxylic species, out of 35, showed a clear relationship with substrate density at scales ranging from 52 m to ⩾5200 m. The characteristic scale of response for species richness of oak specialist species was 2284 m. At this scale, there was a tendency for richness to plateau at about 0.15 oaks ha−1, in which case about 250 hollow or large (circumference 310 cm) oaks would be needed in an area of 1600 ha to ensure a rich saproxylic oak fauna. The main general conclusions were: (i) a multi-scale approach is especially valuable to identify the characteristic scale of response; and that assuming a joint, single scale for all species may result in very poor decision support. (ii) The variation in species’ responses to substrate density at different scales means that habitat loss and fragmentation as well as management and restoration may have very different effects upon different species. (iii) Some species respond both to local and landscape scales, indicating that species occurrences in fragmented oak landscapes are affected both by short-term dynamics of the beetles and long term dynamics of the oak substrate. (iv) Maps, useful as decision support, can be constructed based on resource availability (in our case oak density) and characteristic scales.
Ämnesord
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Skogsvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Forest Science (hsv//eng)
Nyckelord
- Charactersistic scale
- Forest fragmentation
- Metapopulation
- Saproxylic beetles
- Spatiotemporal processes
- Querus robur
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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