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Journal Article

Citation

Chiminazzo MA, Charles-Dominique T, Rossatto DR, Bombo AB, Fidelis A. AoB Plants 2023; 15(3): plad029.

Copyright

(Copyright © 2023, Annals of Botany Company, Publisher Oxford University Press)

DOI

10.1093/aobpla/plad029

PMID

37288427

PMCID

PMC10243913

Abstract

Different ecosystems evolved and are maintained by fire, with their vegetation hosting species with a wide diversity of persistence strategies allowing them to insulate their body and resprout new branches after fire disturbance. Changes in fire regime are predicted due to climate change, either by promoting more frequent and/or severe fires or by reducing the number of fire events due to the limitation of fuel load. Predicting the future of fire-driven ecosystems is a complex task as species' survival depends on many factors that vary in space and time. Since plants are constantly experiencing new environments as they grow through meristem development, woody plant modularity, modules morpho-physiological aspects and their integration should be considered when investigating species strategies in fire-prone ecosystems: according to their position and their tissue composition, plants' modules experience fire differently and will contribute differently to other modules and the whole plant survival, with consequences cascading over the overall vegetation structure. Growth modules may hold the key to understanding how fast plants can get protected from fire, ultimately helping us to predict which species will persist across changing fire regimes. We present an empirical example showing how different fire-return intervals translate into distinct pressures on the timing, protection and location of modules, and discuss how these can translate into modifications in the vegetation structure due to climate change.


Language: en

Keywords

Climate change; fire; grassy biomes; growth form; Miconia albicans; plant architecture; resprouting; savanna; shrub; tree

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