Spreading Speeds and Traveling Waves for Monotone Systems of Impulsive Reaction–Diffusion Equations: Application to Tree–Grass Interactions in Fire-prone Savannas

Autor: Jacek Banasiak, Yves Dumont, Ivric Valaire Yatat Djeumen

Publikováno v: Differential Equations and Dynamical Systems
Differential Equations and Dynamical Systems, 2023, 31, pp.547-580. ⟨10.1007/s12591-020-00552-6⟩
Differential Equations and Dynamical Systems, In press, ⟨10.1007/s12591-020-00552-6⟩

Many systems in life sciences have been modeled by reaction–diffusion equations. However, under some circumstances, these biological systems may experience instantaneous and periodic perturbations (e.g. harvest, birth, release, fire events, etc) su

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::784e9b0b6100b8bc3e9d12e1fa5acb23
https://hal.inrae.fr/hal-02930082

Estimating greenhouse gas emissions from peat combustion in wildfires on Indonesian peatlands, and their uncertainty

Autor: Rodriguez Vasquez, María José, Benoist, Anthony, Roda, Jean-Marc, Fortin, Mathieu

Publikováno v: Global Biogeochemical Cycles

Peatlands play an important role as carbon pools, storing a third of the world's soil carbon. However, peatlands in Southeast Asia have suffered from depletion due to economic pressure and the demand for natural resources, often caused by land use ch

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3631::c24af9c2a11a769e2b12a2b350e3c88f
http://agritrop.cirad.fr/597566/

A minimalistic model of tree–grass interactions using impulsive differential equations and non-linear feedback functions of grass biomass onto fire-induced tree mortality

Autor: Jean Jules Tewa, Samuel Bowong, Pierre Couteron, Yves Dumont, A. Tchuinté Tamen

Publikováno v: Mathematics and Computers in Simulation
Mathematics and Computers in Simulation, 2017, 133, pp.265-297. ⟨10.1016/j.matcom.2016.03.008⟩
Mathematics and Computers in Simulation, Elsevier, 2017, 133, pp.265-297. ⟨10.1016/j.matcom.2016.03.008⟩

International audience; Since savannas are important ecosystems around the world, their long term dynamics is an important issue, in particular when perturbations, like fires, occur more or less often. In a previous paper, we developed and studied a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c8956c909e2fdd0b23ce891d6fd22ba
https://hal.umontpellier.fr/hal-02193359

Interactions of pulsed fires and water in tree--grass savanna ecosystems

Autor: Tchuinte Tamen, Alexis, Dumont, Yves, Bowong, Samuel, Tewa, Jean Jules, Couteron, Pierre

Publikováno v: Biomath Communications

In [1,2], we have developed and compared two variants of a minimalistic tree-grass model which account for fire as periodic pulse events using impulsive differential equations (IDEs). Our models explicitly consider both a generic non-linear increasin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3631::467862407dd161600f07bb3383007cd1
http://agritrop.cirad.fr/581646/

Impulsive modelling for tree-grass interactions in fire-prone savanna

Autor: Yatat Djeumen, Ivric Valaire, Couteron, Pierre, Tewa, Jean Jules, Bowong, Samuel, Dumont, Yves

Publikováno v: Biomath Communications

The study of tree-grass interactions in savanna (fires prone or not) remains an important issue for research. In African savanna, it is well known that fire is a major disturbance that shapes tree-grass ratio along a rainfall gradient. Several mathem

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3631::6c05c9abda6c875de3c5e12d779cee56
http://agritrop.cirad.fr/577589/