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Flammability and coexistence

In the cover of the March issue of the Journal of Ecology (105:2) there is a picture of Palicourea rigida (Rubiaceae), a plant growing in the Brazilian savannas (cerrado). It is an example of a plant that survives in a very flammable environment (grassy savanna) thanks to a set of traits conferring very low flammability, including a very low specific leave area and a thick corky bark. Grasses generates fast fires of low intensity (fast-flammable strategy), and in this environment, having low flammability is adaptive as it increases survival (non-flammable strategy). That is, different (contrasted) flammability strategies allows coexistence. For the definition of the different flammability strategies see [1].

Pausas-2017-JEcol_cover2(photo by J.G. Pausas)

 

[1] Pausas J.G., Keeley J.E., Schwilk D.W. 2017. Flammability as an ecological and evolutionary driver. Journal of Ecology 105: 289-297. [doi | wiley | pdf | blog | brief]

 

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