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Sweden - home |
Landscape openness: a Long-term Study of Historical
Maps, TreeDensities, Tree Regeneration and Grazing Dynamics at Hallands
Väderö
Lannér, JanDepartment of Landscape planning, Swedish University
ofAgricultural Sciences, PO Box 58, S-230 53 Alnarp, Sweden. |
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This thesis presents a case study
of the relationship during 350 years between landscape openness, former
land-use and tree regeneration based on biological and historical archives.
It was carried out on a 300 hectares island in southern Sweden with high
biological and cultural values. The study focused the grazing dynamics in
relation to tree regeneration of oak and beech which was studied with tree
ring methods in combination with historical sources such as church
book-keeping accounts, grazing regulations, forest management plans and land
surveys. The basis for this thesis is two articles and some supplementary
result of my research.
View the full abstract |
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Assessment of conservation values in pine stands
Roger Pettersson, Ph. D. at the Swedish University of Agricultural Sciences,
Umeå, Sweden.
email
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Aims: 1) To validate an indicator system
based on tracks from saproxylic beetles as e.g. Nothorhina punctata
and Tomicus minor, and 2) to elucidate the importance of the regional
species pool for species composition of saproxylic pine insects in local
assemblages.
Study system: Saproxylic insects in 20 pine dominated forest reserves
in northern Sweden and 10 reserves in southeastern Sweden.
Methods: Inventories of saproxylic insects (mainly beetles) with
trunk window traps on pines with tracks of Nothorhina punctata and
Tomicus-species.
The project includes Roger Pettersson as scientist and Stig Lundberg as
determiner of e.g. rove beetles. |
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Beetles
and pseudoscorpions in hollow oaks
Thomas Ranius, Ph. D. at the Swedish University of Agricultural
Sciences, Uppsala, Sweden.
email
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As a PhD student I worked with the population biology of
beetles and pseudoscorpions in hollow oaks. I studied the habitat
requirement of these species by surveys carried out in the province of
Östergötland, southeastern Sweden. A study on the population ecology focused
on one beetle species, Osmoderma eremita (see Osmoderma research). Today, my
main work deals with saproxylic beeltes in managed, boreal forest, but I am
still involved in some ongoing projects on the fauna in old oaks.
I have summarized my research on invertebrates in old, hollow oaks in an
article that can be down-loaded
here |
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Mapping
of ancient trees on a landscape level
Kenneth Claesson, biologist on the County Administration Board of
Östergötland (Sweden).
email |
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Knowledge of biological diversity value of old
and hollow trees and the consequences of changes in land use, makes it
important for governments and organisations dealing with nature conservation
to get information about the abundance and distribution of old trees on a
landscape level. Therefore the county of Östergötland, with all its
different types of habitats, will have all of these ancient trees mapped.
The project began in 1998. So far approximately 3/5 of the county is mapped
(around 7000 square km) and approximately 60 000 trees have been recorded. |
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Starting the rot process prematurely on living oaks
Nicklas Jansson, biologist on the County Administration Board of
Östergötland (Sweden).
email |
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We are trying to inoculate mycelia
from a variety of wood-living fungi species into the trunk of living oaks.
This is being done to start the process of decay so that cavities and wood
mould can be created in the future for the organisms living in this habitat. |
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Artificial trunk cavities and wood mould
Nicklas Jansson, biologist on the County Administration Board of
Östergötland (Sweden).
email
Thomas Ranius, Ph. D. at the Swedish University of Agricultural Sciences,
Uppsala, Sweden.
email |
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We are trying to create artificial
substrates for the saproxylic fauna living in hollow trees. In a pilot study
we have set out nesting boxes made from oak wood filled with sawdust and
other components in order to create artificial wood mould. The aim is to
investigate to what extent this substrate will be used by insects confined
to tree hollows. If this experiment is successful, it will give us the
opportunity to design experiments with nesting boxes treated and placed in
different ways. Perhaps it could also be useful in nature conservation in
certain areas where there is an age gap among the trees. |
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Mapping
threatened species around ancient trees
Kjell Antonsson, biologist on the County Administrative Board of
Östergötland (Sweden).
email
Nicklas Jansson, biologist on the County Administration Board of
Östergötland (Sweden).
email |
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One part of a bigger project is
dealing with the organisms living around ancient trees. Different
specialists carry out inventories of insects, lichens, fungi, mosses and
bats. |
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Nature
Conservation project about the Hermit beetle (Osmoderma eremita) in Sweden
Kjell Antonsson, biologist on the County Administrative Board of
Östergötland (Sweden)
email |
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The species is a good indicator of
pasture land containing old hollow oaks with a long continuity. It is also
on the EC:s list of priority species on the habitat directive. The project
was carried out between 1998 and 2002 and the work included the protection
of sites, clearance of habitats, fence-building, species inventories,
production of information brochures etc. The 45 project sites were situated
in the southern third of Sweden.
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| Landscape planning
of Oak areas in Norrköping – part of a Nature Conservation programme. Eva
Siljeholm, Nörrköping Kommun (Sweden).
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www.norrkoping.se |
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| Eklandskapsfonden |
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www.eklandskapet.nu |
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| Tinnerö oak
landscape SwedenAnders JörneskogLinköping Kommun, (Sweden).
email |
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Restoration and monitoring in the
oak landscape near Tinnerö, Linköping Kommun |
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| Project - Oak County
- Östergötland SwedenHans LimonLänsstyrelsen (Sweden)+46 13 196338
email |
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A survey of all oak areas in
Östergötland. |
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