Minimal mechanisms for vegetation patterns in semiarid regions

Martinez-Garcia, Ricardo; Calabrese, Justin M.; Hernandez-Garcia, Emilio; Lopez, Cristobal
Philosophical Transactions of the Royal Society A 372, 20140068 (1-11) (2014)

The minimal ecological requirements for formation of regular vegetation patterns in semiarid systems have been recently questioned.
Against the general belief that a combination of facilitative and competitive interactions is necessary,
recent theoretical studies suggest that, under broad conditions, nonlocal competition among plants alone
may induce patterns. In this paper, we review results along this line, presenting a series of models that yield spatial patterns when finite-range competition is the only driving force.
A preliminary derivation of this type of model from a more detailed one
that considers water-biomass dynamics is also presented.

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