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Extreme rainfall events and their effects on the community structure and ecosystem functioning

Grant number: 17/26243-8
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): September 01, 2018
Effective date (End): August 31, 2022
Field of knowledge:Biological Sciences - Ecology - Theoretical Ecology
Principal researcher:Gustavo Quevedo Romero
Grantee:Pablo Augusto Poleto Antiqueira
Home 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

Abstract

High species extinction rates and climate change are among the major anthropogenic consequences threatening and modifying ecosystems. Although an increase in extreme precipitation events and variations are expected for the next decades, we still need empirical evidence addressing the consequences of these effects on the biodiversity and ecosystem functioning. A major limitation of conducting empirical studies is the difficulty in performing manipulative field experiments, exposed to natural conditions, and addressing ecological issues in a realistic and robust way, besides replicating capacity. In this study we will use tank bromeliads as a model system to investigate the effects of changes in rainfall regimes (mean daily intensity and dispersion of rainfall around this mean), predicted by several current climate models, in two distinct Restinga environments that vary in terms of biotic and abiotic characteristics. This study will address three current issues with important and complementary ecological approaches. First, we will investigate how changes in rainfall patterns influence the community trophic structure, e.g., predator-prey and detritus-resource ratios. Second, we will examine how changes in precipitation affect the alpha and beta diversity of macro and microorganisms (microfauna, algae and bacteria) and whether this impact differs between different biological groups in distinct environments. Finally, we will investigate how changes in rainfall patterns alter ecosystem functioning in different environments, mediated by the diversity, abundance and biomass of macro and microorganisms. Combined, our results will generate a broad predictive framework, supported by empirical data, of how climate change, predicted for the next decades, directly and indirectly affect biodiversity, ecosystem functioning, and interaction between their components.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
MOI, DIEISON ANDRE; ALVES, DIEGO CORREA; ANTIQUEIRA, PABLO AUGUSTO POLETO; THOMAZ, SIDINEI MAGELA; TEIXEIRA DE MELLO, FRANCO; BONECKER, CLAUDIA COSTA; RODRIGUES, LUZIA CLEIDE; GARCIA-RIOS, RAUL; MORMUL, ROGER PAULO. Ecosystem Shift from Submerged to Floating Plants Simplifying the Food Web in a Tropical Shallow Lake. ECOSYSTEMS, AUG 2020. Web of Science Citations: 0.
ROMERO, GUSTAVO Q.; MARINO, NICHOLAS A. C.; MACDONALD, A. ANDREW M.; CEREGHINO, REGIS; TRZCINSKI, M. KURTIS; MERCADO, DIMARIS ACOSTA; LEROY, CELINE; CORBARA, BRUNO; FARJALLA, VINICIUS F.; BARBERIS, IGNACIO M.; DEZERALD, OLIVIER; HAMMILL, EDD; ATWOOD, TRISHA B.; PICCOLI, GUSTAVO C. O.; OSPINA BAUTISTA, FABIOLA; CARRIAS, JEAN-FRANCOIS; LEAL, JULIANA S.; MONTERO, GUILLERMO; ANTIQUEIRA, PABLO A. P.; FREIRE, RODRIGO; REALPE, EMILIO; AMUNDRUD, SARAH L.; DE OMENA, PAULA M.; CAMPOS, ALICE B. A.; KRATINA, PAVEL; O'GORMAN, EOIN J.; SRIVASTAVA, DIANE S. Extreme rainfall events alter the trophic structure in bromeliad tanks across the Neotropics. NATURE COMMUNICATIONS, v. 11, n. 1 JUN 25 2020. Web of Science Citations: 0.
ANTIQUEIRA, PABLO A. P.; DE OMENA, PAULA M.; GONCALVES-SOUZA, THIAGO; VIEIRA, CAMILA; MIGLIORINI, GUSTAVO H.; KERSCH-BECKER, MONICA F.; BERNABE, TIAGO N.; RECALDE, FATIMA C.; BENAVIDES-GORDILLO, SANDRA; ROMERO, GUSTAVO Q. Precipitation and predation risk alter the diversity and behavior of pollinators and reduce plant fitness. Oecologia, v. 192, n. 3 FEB 2020. Web of Science Citations: 0.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.