A continuous Holocene beetle record from the site Stavsåkra, southern Sweden: implications for the last 10 600 years of forest and land use history
2008 (English)In: Journal of Quaternary Science, ISSN 0267-8179, E-ISSN 1099-1417, Vol. 24, no 6, 612-626 p.Article in journal (Refereed) Published
Beetle remains from a small bog in southern Sweden contribute information concerning the forest history of the study area. The study shows that beetles are valuable indicators of woodland structures such as openness, field vegetation, presence of dead wood and disturbance factors such as climate change, fire regimes, grazing and land use. The early Holocene, ca. 8600–6450 cal. BC, was characterised by open, pine-dominated woodlands maintained by fire and grazing disturbances. The changes in the wetland fauna, between 8600 and 7500 cal. BC, correlate well with low lake levels in southern Sweden. During the mid Holocene, ca. 6450–2400 cal. BC, the woodlands were relatively dense, with few openings in the canopy. Around 4200 cal. BC, there was a shift to a dominance of deciduous trees. Fire and grazing pressures were particularly low. Numbers of aquatic and hygrophilic beetles indicate dry conditions between ca. 5000 and 3000 cal. BC. During the late Holocene, ca. 2400 cal. BC to present, the woodlands opened up mainly through increased land use. The main disturbance factors were fire and grazing. The beetles indicate the formation of heather-dominated heathland around 800 cal. BC.
Place, publisher, year, edition, pages
2008. Vol. 24, no 6, 612-626 p.
Holocene coleopteran record; forest ecosystems; fire history; grazing; climate
Research subject Entomology; Quarternary Geology
IdentifiersURN: urn:nbn:se:umu:diva-37737DOI: 10.1002/jqs.1242OAI: oai:DiVA.org:umu-37737DiVA: diva2:369767
ProjectsThe Role of Human-Induced and Natural Disturbances on Landscape and Ecosystem Diversity in a Long Term Perspective - A Historical Background for Climate Risk Analysis and Landscape-Management Strategy