Dynamics of seedling recruitment and tree seedling–herbivore interactions during forest recovery

森林恢复过程中幼苗补充和树木幼苗与草食动物相互作用的动态

• 批准号: 461894854
• 负责人: Professorin Dr. Nina Farwig
• 金额: --
• 依托单位: Arbeitsgruppe Naturschutz
• 依托单位国家: 德国
• 项目类别: Research Units
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/461894854?language=en
• 关键词: Dynamics; seedling; recruitment; tree; herbivore

Within the research unit “Reassembly of species interactions networks”, the subproject SP5 “Dynamics of seedling recruitment and tree seedling–herbivore interactions during forest recovery” focuses on seedling recruitment and seedling–herbivore interactions. Both, seedling recruitment and seedling-herbivore interactions will be monitored in all plots across the forest recovery chronosequence. Species-specific morphological and chemical traits such as leaf thickness or leaf metabolites will be characterized and leaf herbivory quantified. We will additionally assess the genetic diversity in early and late-successional species along the chronosequence. An experiment on seed rain and seedling recruitment will help to quantify the functional contribution of different components of the seed dispersal network and their responses to perturbation. Seed rain and seedling recruitment are expected to differ depending on seed size and dispersal syndrome of the seedling species. Genetic diversity and functional traits of seedlings will be related to leaf herbivory as well as the structure of seedling-herbivore networks and their dynamics in recovering forests.

在“物种相互作用网络的重组”研究单位内，SP5分项目“森林恢复期间苗木招募和树苗-食草动物相互作用的动态”侧重于苗木招募和苗木-食草动物相互作用。在整个森林恢复时间序列的所有地块中，都将监测苗木补充和苗木-食草动物相互作用。将描述物种特有的形态和化学特征，如叶片厚度或叶片代谢物，并对叶片食草性进行量化。我们还将评估沿时间序列的早期和晚期演替物种的遗传多样性。关于种子雨和幼苗招募的实验将有助于量化种子传播网络不同组成部分的功能贡献及其对扰动的反应。种子雨和幼苗招募预计会因种子大小和苗种的扩散综合征而有所不同。苗木的遗传多样性和功能性状将与叶片食草性、苗木-食草动物网络结构及其在森林恢复过程中的动态有关。