The evolution of fire-related plant traits in Cerrado ground-layer and the phylogenetic structure in burnt and non-burnt plant communities

• Grant number: 17/20897-6
• Support type: Scholarships abroad - Research Internship - Doctorate
• Effective date (Start): June 01, 2018
• Effective date (End): November 30, 2018
• Field of knowledge: Biological Sciences - Ecology - Ecosystems Ecology
• Principal researcher: Giselda Durigan
• Grantee: Natashi Aparecida Lima Pilon
• Supervisor abroad: Richard Toby Pennington
• Home Institution: Instituto de Biologia (IB). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Research place: Royal Botanic Garden Edinburgh (RBGE), Scotland
• Associated to the scholarship: 16/17888-2 - Effects of prescribed burning and frost on plant diversity and structure in Cerrado ground layer, BP.DR

Abstract

Fire in Tropical Grassy Biomes acts as both an ultimate and a proximate factor influencing plant communities. Understanding the role of fire in the evolution and persistence of species is, therefore, crucial to conserve these ecosystems in the environmental scenarios posed by climate change. Phylogenetic approaches have been explored in the last decade as a promising tool to address these issues. However, so far, the studies have considered only the woody component, whether the ground-layer has been disregarded, due to the lack of well-resolved phylogenies or the difficulty in identification of non-woody species. In this project, we aim to investigate the pivotal role of fire as an evolutionary driver and as a modulator of the community composition and structure in the ground-layer of Cerrado vegetation (Brazilian savanna), using two complementary approaches - evolutionary and ecological. By the evolutionary approach, we intend to test phylogenetic hypotheses for some taxa, in search for patterns related to time for diversification of different life forms and correlating it with the emergence of fire-related traits. By the ecological approach, we will address the role of fire in the current community assemble, using phylogenetic tools to examine changes in community structure under fire and where fire was suppressed (communities under woody encroachment). Given the methodological challenge that this proposal represents, we aim to develop it under the supervision of the experts from the Royal Botanic Garden Edinburgh, widely known by their expertise in evolutionary studies of tropical systems. (AU)

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)

ASSIS, GEISSIANNY B.; PILON, NATASHI A. L.; SIQUEIRA, MARINEZ F.; DURIGAN, GISELDA. Effectiveness and costs of invasive species control using different techniques to restore cerrado grasslands. RESTORATION ECOLOGY, v. 29, n. 1, SI APR 2021. Web of Science Citations: 3.

PILON, NATASHI A. L.; CAVA, MARIO G. B.; HOFFMANN, WILLIAM A.; ABREU, RODOLFO C. R.; FIDELIS, ALESSANDRA; DURIGAN, GISELDA. The diversity of post-fire regeneration strategies in the cerrado ground layer. JOURNAL OF ECOLOGY, v. 109, n. 1 AUG 2020. Web of Science Citations: 9.

PASSARETTI, RAQUEL A.; PILON, NATASHI A. L.; DURIGAN, GISELDA. Weed control, large seeds and deep roots: Drivers of success in direct seeding for savanna restoration. APPLIED VEGETATION SCIENCE, v. 23, n. 3 MAY 2020. Web of Science Citations: 2.