منابع مشابه
Desertification by front propagation?
Understanding how desertification takes place in different ecosystems is an important step in attempting to forecast and prevent such transitions. Dryland ecosystems often exhibit patchy vegetation, which has been shown to be an important factor on the possible regime shifts that occur in arid regions in several model studies. In particular, both gradual shifts that occur by front propagation, ...
متن کاملFront propagation and memory effect in stochastic desertification models with an absorbing state
Desertification in dryland ecosystems is considered to be a major environmental threat that may lead to devastating consequences. The concern increases when the system admits two alternative steady states and the transition is abrupt and irreversible (catastrophic shift). However, recent studies show that the inherent stochasticity of the birth-death process, when superimposed on the presence o...
متن کاملFront propagation in flipping processes
T. Antal, D. ben-Avraham, E. Ben-Naim, and P. L. Krapivsky 4 Program for Evolutionary Dynamics, Harvard University, Cambridge, Massachusetts, 02138 USA Physics Department, Clarkson University, Potsdam, New York 13699 USA Theoretical Division and Center for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 USA Department of Physics, Boston University, Boston, Massac...
متن کاملFront propagation into unstable states
This paper is an introductory review of the problem of front propagation into unstable states. Our presentation is centered around the concept of the asymptotic linear spreading velocity v∗, the asymptotic rate with which initially localized perturbations spread into an unstable state according to the linear dynamical equations obtained by linearizing the fully nonlinear equations about the uns...
متن کاملExternal fluctuations in front propagation.
J. Armero,1 J. M. Sancho,1,4 J. Casademunt,1 A. M. Lacasta,2 L. Ramı́rez-Piscina,2 and F. Sagués3 1Departament d’Estructura i Constituents de la Matèria, Universitat de Barcelona, Av. Diagonal 647, E-080028 Barcelona, Spain 2Departament de Fı́sica Aplicada, Universitat Politècnica de Catalunya, Av. Dr. Gregorio Marañón 50, E-08028 Barcelona, Spain 3Departament de Qumı́ca Fı́sica, Universitat de Bar...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Theoretical Biology
سال: 2017
ISSN: 0022-5193
DOI: 10.1016/j.jtbi.2017.01.029