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Historical perspepctives on landscape representation and forest composition in Woodland Key Habitats compared to formally protected forest in boreal Sweden
Södertörn University, School of Life Sciences, Environmental science. Stockholms universitet.
Södertörn University, School of Life Sciences, Biology.ORCID iD: 0000-0002-5013-6462
(English)Manuscript (preprint) (Other academic)Text
Abstract [en]

Habitats of Swedish conservation interests are in general small and fragmented following the extensive and intensive forest management history. This study covering 71 000 ha of boreal Sweden investigates how history influences present-day distribution and composition of forests identified as high conservation value habitats and how they are protected. We also investigated if the habitat criteria used to describe reservations differed between reservation types and if habitat criteria were associated with the size of Woodland Key Habitats. The results show strong effects from historical ownership and historical forest type on the probability of an area being set aside as formally protected or as voluntary protected Woodland Key Habitats. We also found that both formal reservations and Woodland Key Habitats primarily cover coniferous forest in the age interval 70-110 years but not the presumably most valuable oldest coniferous category >110 or deciduous forests, which are as common in reservations as in other areas. Old deciduous forests (>110 years) are significantly more rare in formal reservations compared to the forest matrix. When viewed in a context of fragmentation and edge effects the results underline the importance of evaluating reserved areas and Woodland Key Habitats in a wider temporal and larger spatial perspective to optimize conservation management efforts. Maximal representation and biodiversity can be better achieved if new reservations are chosen to represent different ownership and forest history, and if they are selected in a landscape context related to present reservations and the present surrounding production forest.

Keyword [en]
habitat remnants, forest structure and composition, biodiversity conservation, fragmentation, edge effects, matrix, structural contrast
National Category
Landscape Architecture
URN: urn:nbn:se:sh:diva-29732OAI: diva2:911743

Som manuskript i avhandling. As manuscript in dissertation.

Available from: 2011-01-07 Created: 2016-03-14 Last updated: 2016-09-22Bibliographically approved
In thesis
1. Cross-scale perspectives on heterogeneity in Swedish boreal forests
Open this publication in new window or tab >>Cross-scale perspectives on heterogeneity in Swedish boreal forests
2011 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Maintaining species diversity, ecosystem functioning, and socioeconomic values requires continued ecosystem heterogeneity across scales. This thesis aims to bridge gaps between ecological theory, environmental goals, and practical application of sustainable forest management needed to maintain such heterogeneity. Included case studies of boreal Sweden concern three challenges in the cross-scale understanding of heterogeneity: matrix qualities and composition; acquiring and incorporating historical information; and interactions between forest composition and management. Paper I cover three large-scale forest companies in four boreal counties today, outlining available information on matrix qualities and composition from the companies. Papers II-III cover the village scale from 1720s–1850s–present in Dalarna County and papers IV-V the parish scale from 1860s–present in the same county. Geographic Information Systems were used to integrate historical maps with present data, perform spatiotemporal analyses, and extract data for statistical testing in primarily generalized linear models. For the practical realization of sustainable forest management, the results indicate a need for further monitoring across scales to understand matrix composition, especially in relation to small voluntary reservations in a larger spatiotemporal perspective. Historical material can provide information on temporal connectivity and spatial separation between the past and present forest composition from analysis of change trajectories respectively interacting variables. This thesis suggests that models of forest dynamics are more relevant for local implementation of sustainable forest management efforts if including interactions between forest dynamics and ownership as an approximate driver of local change.

Place, publisher, year, edition, pages
Stockholm: Department of Physical Geography and Quaternary Geology, Stockholm University, 2011. 37 p.
Dissertations from the Department of Physical Geography, ISSN 1653-7211 ; 25
sustainable forest management, biodiversity conservation, landscape analysis, historical maps, ownership
National Category
Physical Geography
urn:nbn:se:sh:diva-29734 (URN)978-91-7447-206-6 (ISBN)
Public defence
2011-02-11, Nordenskiöldsalen, Geovetenskapens hus, Svante Arrhenius väg 12, 13:00 (English)

At the time of the doctoral defense, the following papers were unpublished and had a status as follows: Paper 4: Manuscript. Paper 5: Manuscript.

Available from: 2016-03-14 Created: 2016-03-14 Last updated: 2016-03-14Bibliographically approved

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