Close Anthropogenic Control of Fagus sylvatica Establishment and Expansion in a Swedish Protected Landscape : Implications for Forest History and Conservation

Aim: The dominant forces behind the expansion of Fagus sylvatica (beech) in northern Europe during the late Holocene have been much debated. Palaeoecological analyses were performed for a biodiversity hotspot reserve in order to study the processes behind the local establishment of Fagus, as well as... Ausführliche Beschreibung

1. Person: Lindbladh, Matts
Weitere Personen: Niklasson, Mats verfasserin; Karlsson, Matts verfasserin; Björkman, Leif verfasserin; Churski, Marcin verfasserin; Birks, John verfasserin
Quelle: in Journal of biogeography Vol. 35, No. 4 (2008), p. 682-697
Weitere Artikel
Format: Online-Artikel
Sprache: English
Veröffentlicht: 2008
Beschreibung: Online-Ressource
Schlagworte: research-article
Beech
charcoal analysis
ecological base-line
forest fire
human impacts
longterm ecology
palaeoecology
pollen analysis
Quercus
Sweden
Online Zugang: Volltext
Volltext
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Anmerkung: Copyright: Copyright 2007 Blackwell Publishing Ltd.
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245 1 0 |a Close Anthropogenic Control of Fagus sylvatica Establishment and Expansion in a Swedish Protected Landscape : Implications for Forest History and Conservation  |h Elektronische Ressource 
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520 |a Aim: The dominant forces behind the expansion of Fagus sylvatica (beech) in northern Europe during the late Holocene have been much debated. Palaeoecological analyses were performed for a biodiversity hotspot reserve in order to study the processes behind the local establishment of Fagus, as well as the historical vegetational development in relation to present-day biodiversity and conservation. Location: Biskopstorp Forest Reserve in south-west Sweden. Methods: Pollen and charcoal were analysed from three small-hollow sites in the reserve. Two of the investigated wetlands were located adjacent to old-growth stands of Fagus, and the third was located near a stand of old Quercus. Results: The 2500-year record shows that Fagus was first established around the two Fagus old-growth sites, c. AD 900 and 1200, respectively, and that this was followed by an expansion around AD 1600. During the establishment phase, and more so in the expansion phase, there were simultaneous increases in types of pollen indicative of human activity. These indicators are also frequent throughout the record from the Quercus site, but here Fagus never became common. Main conclusions: The dynamics behind the establishment and expansion of Fagus in the reserve seems to have been influenced to a large degree by human activity, for example selective cutting, human-induced fires, and agriculture. Fagus became established in the reserve more than 1000 years after it became established regionally, making climate less probable as the dominant force behind the species' stand-scale establishment. The spreading of Fagus across southern Scandinavia has previously been shown to be a patchy process in time and space. Our study suggests that this patchiness is evident also at a small spatial scale (a few kilometres). At the Quercus site, relatively high amounts of pollen from the field layer throughout the record indicate open conditions that probably favoured Quercus. The degree of human impact at this site was probably too high to allow the expansion of Fagus. With the long-term perspective provided by our study it was possible to identify the last 200-300 years as an unrepresentative period with respect to tree species composition and forest dynamics. The large increase of Picea locally and regionally over the last several hundred years, combined with dramatic levels of human impact, have altered the tree composition and forest dynamics to such an extent that active management is necessary in order to maintain biodiversity in the reserve. 
653 |a research-article 
653 |a Beech 
653 |a charcoal analysis 
653 |a ecological base-line 
653 |a forest fire 
653 |a human impacts 
653 |a longterm ecology 
653 |a palaeoecology 
653 |a pollen analysis 
653 |a Quercus 
653 |a Sweden 
700 1 |a Niklasson, Mats  |e verfasserin  |4 aut 
700 1 |a Karlsson, Matts  |e verfasserin  |4 aut 
700 1 |a Björkman, Leif  |e verfasserin  |4 aut 
700 1 |a Churski, Marcin  |e verfasserin  |4 aut 
700 1 |a Birks, John  |e verfasserin  |4 aut 
773 0 8 |i in  |t Journal of biogeography  |d Oxford [u.a.] : Wiley-Blackwell  |g Vol. 35, No. 4 (2008), p. 682-697  |q 35:4<682-697  |w (DE-601)JST045195129  |x 1365-2699 
856 4 1 |u http://dx.doi.org/10.1111/j.1365-2699.2007.01813.x  |3 Volltext 
912 |a GBV_JSTOR 
951 |a AR 
952 |d 35  |j 2008  |e 4  |h 682-697 

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