Effects of Different Silvicultural Treatments on the Genetic Structure of European Beech Populations (Fagus Sylvatica L.)

Dounavi, K.; Steiner, Wilfried; Maurer, W.

doi:10.1007/978-94-015-9886-6_7

Cited by 6 publications

(5 citation statements)

References 9 publications

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“…In Fagus sylvatica, selective thinning favouring the most vigorous trees was found to increase the heterozygosity by 4 to 9 % (Lauber et al 1997;Dounavi et al 2002), even when selection occurs at a very early stage (Thiebaut et al 1992). However, this effect was not detected in other studies on A. alba (Hussendörfer and Konnert 2000) or Pinus contorta (McDonald et al 2001).…”

Section: Foreseen Evolutionary Impact Of Common Forestry Practicementioning

confidence: 93%

“…2). By removing neighbouring-related individuals, thinning may reduce spatial genetic structure and, consequently, inbreeding in the regeneration (Dounavi et al 2002). Sagnard et al (2011) showed that, when the density of seed trees is low (<16 treesha −1 ), a clustered distribution of seed trees will produce less spatial genetic structure in the seedlings than a random or dispersed distribution.…”

Section: Foreseen Evolutionary Impact Of Common Forestry Practicementioning

confidence: 99%

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Considering evolutionary processes in adaptive forestry

Lefèvre

Boivin

Bontemps

et al. 2013

Annals of Forest Science

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Managing forests under climate change requires adaptation. The adaptive capacity of forest tree populations is huge but not limitless. Integrating evolutionary considerations into adaptive forestry practice will enhance the capacity of managed forests to respond to climate-driven changes. & Aims Focusing on natural regeneration systems, we propose a general framework that can be used in various and complex local situations by forest managers, in combination with their own expertise, to integrate evolutionary considerations into decision making for the emergence of an evolution-oriented forestry. & Methods We develop a simple process-based analytical grid, using few processes and parameters, to analyse the impact of forestry practice on the evolution and evolvability of tree populations. & Results We review qualitative and, whenever possible, quantitative expectations on the intensity of evolutionary drivers in forest trees. Then, we review the effects of actual and potential forestry practice on the evolutionary processes. We illustrate the complexity of interactions in two study cases: the evolutionary consequences for forest trees of biotic interactions and of highly heterogeneous environment. & Conclusion Evolution-oriented forestry may contribute adapting forests to climate change. It requires combining short-term and long-term objectives. We propose future lines of research and experimentation.

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Section: Foreseen Evolutionary Impact Of Common Forestry Practicementioning

confidence: 93%

Section: Foreseen Evolutionary Impact Of Common Forestry Practicementioning

confidence: 99%

Considering evolutionary processes in adaptive forestry

Lefèvre

Boivin

Bontemps

et al. 2013

Annals of Forest Science

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“…Several studies based on isozyme gene markers showed no or only weak effects of selective thinning on the allelic and genotypic structures of Central European stand-forming tree species (Hussendörfer and Konnert, 2000;Konnert and Bauer, 2001;Wolf, 2001;Dounavi et al, 2002). In several studies observed heterozygosity moderately increased after thinning, but the allelic multiplicity decreased.…”

Section: Thinning and Harvesting Operationsmentioning

confidence: 96%

Genetic implications of silvicultural regimes

Finkeldey

Ziehe

2004

Forest Ecology and Management

115

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“…Additionally, Neale and Adams (1985) showed that genetic structure in Douglasfir populations is likely to remain unaffected by silvicultural treatments, as there was no significant difference in multilocus outcrossing estimates between treatments. This was not the case for European beech (Fagus sylvatica L.), where higher levels of genetic variation could be noted prior to thinning (Dounavi et al 2002). How human influence affects the spatial characteristics of the next generation was demonstrated by Takahashi et al (2000) for Japanese beech (Fagus crenata Blume).…”

Section: Introductionmentioning

confidence: 95%

Spatial patterns and genetic structures within beech populations (Fagus sylvatica L.) of forked and non-forked individuals

et al. 2010

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Analyses of distribution patterns and genetic structures of forest stands can address distinct family structures and provide insights into the association of genetic and phenotypic variation patterns. In this study, point pattern analysis and spatial autocorrelation were used to examine the spatial and genetic structures in two naturally generated beech stands, which differ in age, trunk morphology, and stand management. Significant tree clumping was observed at distances up to 20 m in the young forest stand, whereas dispersion at distances under 10 m was observed in the old stand. The spatial analysis based on Ripley's k function of the two different groups of trees showed that the non-forked trees match in both stands the spatial pattern of all trees while the forked were randomly distributed. Additionally, according to the bivariate analysis, forked trees in both stands were randomly distributed as related to non-forked tree positions. Finally, Moran's I values were not very high, though significant genetic autocorrelation was identified at distances up to 20 m in the young stand, suggesting the existence of distinct family structures. However, no significant genetic structuring was observed in the old stand. Our findings suggest that spatial genetic patterns are impacted by stand age, environmental factors and human activities. The spatial distribution of forked trees was not clearly associated to family structures. Random effects and also micro-environmental variation could be additional factors explaining forking of beech individuals.

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Effects of Different Silvicultural Treatments on the Genetic Structure of European Beech Populations (Fagus Sylvatica L.)

Cited by 6 publications

References 9 publications

Considering evolutionary processes in adaptive forestry

Considering evolutionary processes in adaptive forestry

Genetic implications of silvicultural regimes

Spatial patterns and genetic structures within beech populations (Fagus sylvatica L.) of forked and non-forked individuals

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