| Grant number: | 23/01589-0 |
| Support Opportunities: | Regular Research Grants |
| Start date: | July 01, 2023 |
| End date: | June 30, 2025 |
| Field of knowledge: | Biological Sciences - Ecology - Ecosystems Ecology |
| Agreement: | CNPq |
| Principal Investigator: | Gustavo Quevedo Romero |
| Grantee: | Gustavo Quevedo Romero |
| Host Institution: | Instituto de Biologia (IB). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil |
| Associated research grant: | 19/08474-8 - Freshwater ecosystems under climate change: impacts across multiple levels of organisation, AP.PFPMCG.TEM |
| Associated scholarship(s): | 23/10051-3 - Influence of aquatic-sourced subsidies on the resilience of receptor food webs in riparian forests, BP.JD |
Abstract
Subsidies are allochthonous resources that influence interactions in the receipt ecosystem. Subsidies of aquaticorigins benefit terrestrial predators and the food web. However, most studies are based on receipt communityresponses in relatively stable environments, without taking into account disturbances resulting from climate change.For example, the increase of extreme precipitation can make natural disasters increasingly intense and frequent. Indense forest, branchs or entire trees can fall, affecting understory locations, including the associated food web. Theobjective of these project is to investigate the importance of aquatic subsidies on resilience of riparian food websubject to unpredictable disturbances. A manipulative experiment will be carried out in riparian forests of the Serrado Mar State Park, where we will exclude the entry of emerging aquatic insects (the subsidies) and will emulate thedisturbance in the form of falling branches and destruction of understory vegetation, in several plots established in anorthogonal design. Beyond BACI analyses will be carried out, in addition to testing linear models of the subsidy xdisturbance interaction on the variability (PV) and recovery time of the terrestrial food web (resilience). Theexecution of the project will be structured in two phases: (i) periodic fieldwork to assemble the structures and collectin the field; and (ii) laboratory work and writing, where the collected data will be organized. Understanding howallochthonous subsidies act to mitigate the adverse effects of disturbances in vulnerable ecosystems becomes vitallyimportant, not only to contribute to the knowledge of biological interactions, their causes and consequences, but alsoto provide clear information that is useful to plan strategies for conservation and mitigation of climate change. (AU)
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