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

• Applicants: Professorin Dr. Nina Farwig; Professorin Dr. Katrin Heer; Professorin Dr. Sybille Unsicker
• Subject Area: Ecology and Biodiversity of Animals and Ecosystems, Organismic Interactions
• Term: since 2021
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 444827997

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.

• DFG Programme: Research Units
• Subproject of: FOR 5207: Reassembly of species interaction networks – Resistance, resilience and functional recovery of a rainforest ecosystem
• International Connection: Ecuador
• Cooperation Partners: Professor Dr. David Donoso, Ph.D.; Dr. María-José Endara