Simulated Mima mounds emerge from small interactions

Autor:	Lewis, Chloë Peregrine Hunt
Rok vydání:	2011
Předmět:	Nonlinear Sciences - Cellular Automata and Lattice Gases Physics - Biological Physics Physics - Geophysics
Druh dokumentu:	Working Paper
Popis:	The Mima-mound-and-vernal-pool topography of California is rich in endemic plant and invertebrate species, but we do not know how this unusual environment is created or maintained. Burrowing rodents have been observed to move soil upwards at annual rates sufficient to maintain the mounds despite erosion, but there is no tested explanation of this behavior. We propose that the mounds are an emergent effect of small-scale (10 cm, 1 day) interactions between topography, hydrology, plant growth, and rodent burrowing. A cellular automata simulation of these processes both generates and maintains mound-pool topography with minimal dependence on initial conditions, and can also describe mound morphogenesis on slopes, where observed mound geometry is distinct from that on level ground. Comment: 13 pages in draft layout, 6 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1112.3074 Zobrazit plný text záznamu View this record from Arxiv