TREELANDS – Trees as Islands – on the phylogenetic isolation of trees in mixed forests

TREELANDS â 树木如岛 â 论混交林树木的系统发育隔离

基本信息

项目摘要

Mixing trees in production forests is one of the core tools of silvicultural forest management. In the Biodiversity Exploratories the increasing proportion of conifers is a major determinant of the land-use intensity in the forests. However, the ecological mechanisms driving the diversity in the canopy of trees embedded in different evolutionary neighbourhoods is still poorly understood. The neighbourhood to tree species with an increasing evolutionary distance as the phylogenetic isolation can affect the target tree and it inhabitants in many ways: first by changing the crown and leaf characteristic, second via isolation from neighbour with increasing distance. Here we test the hypothesis that phylogenetic isolation of a host tree affects the arthropod communities for the four major tree species in Central Europe, Fagus sylvatica, Quercus petrae, Pinus sylvestris and Picea abies. We will combine canopy arthropod fogging samples, Terrestrial Laserscanning, microclimate measurements, Leaf measurements and innovative barcoding methods to test eight predictions in four research fields. First, we will investigate if phylogenetic isolation affects insect communities directly via isolation or indirectly by changes in crown structures. Second we will study the effects of phylogenetic isolation on within tree variation and third the effects of this variation on insect communities. Fourth, we will study the effect of phylogenetic isolation on herbivory, diversity of different guilds and within species variation. This will allow us to test for the first time how far previous results from oaks can be generalised to other tree species and give a deeper insight into the ecological mechanisms behind the mixing component of the land use gradient in forests.
林木混交林是人工林经营的核心手段之一。在生物多样性探测区,针叶林比例的增加是森林土地利用强度的主要决定因素。然而,驱动不同进化街区树木冠层多样性的生态机制仍然知之甚少。随着进化距离的增加,系统发育隔离可以通过多种方式影响目标树及其居民:首先是通过改变树冠和叶片特征,其次是通过与邻居的距离增加而隔离。本研究验证了寄主树的系统发育隔离对中欧四种主要树种(Fagus sylvatica、Quercus pepee、Pinus sylvestris和Picea abies)节肢动物群落的影响。我们将结合冠层节肢动物雾化样本、陆地激光扫描、小气候测量、叶片测量和创新的条形码方法,在四个研究领域测试8个预测。首先,我们将研究系统发育隔离是通过隔离直接影响昆虫群落,还是通过冠结构的变化间接影响昆虫群落。其次,我们将研究系统发育隔离对树内变异的影响,第三,这种变异对昆虫群落的影响。第四,研究系统发育隔离对植食性、行会多样性和种内变异的影响。这将使我们能够首次测试之前对橡树的研究结果在多大程度上可以推广到其他树种,并更深入地了解森林土地利用梯度混合成分背后的生态机制。

项目成果

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Professor Dr. Jörg Müller其他文献

Professor Dr. Jörg Müller的其他文献

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{{ truncateString('Professor Dr. Jörg Müller', 18)}}的其他基金

Linking biodiversity to ecosystem functioning in forest ecosystems: biotic drivers of wood decomposition
将生物多样性与森林生态系统中的生态系统功能联系起来:木材分解的生物驱动因素
  • 批准号:
    335346150
  • 财政年份:
    2017
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Coordination Funds
协调基金
  • 批准号:
    499968794
  • 财政年份:
  • 资助金额:
    --
  • 项目类别:
    Research Units
SP9: Multifunctionality and the biodiversity of higher trophic levels
SP9:多功能性和更高营养级的生物多样性
  • 批准号:
    500087958
  • 财政年份:
  • 资助金额:
    --
  • 项目类别:
    Research Units
Pesticides, Plants and Arthropods – Using a land-use and climate gradient approach to evaluate the potential impact of agrochemicals
农药、植物和节肢动物 â 使用土地利用和气候梯度方法评估农用化学品的潜在影响
  • 批准号:
    511569970
  • 财政年份:
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Gap Response In Forest Insects – From Communities To Cellular Processes (GapResIn)
森林昆虫的间隙反应 – 从群落到细胞过程 (GapResIn)
  • 批准号:
    433123530
  • 财政年份:
  • 资助金额:
    --
  • 项目类别:
    Infrastructure Priority Programmes

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