Mean-field approximation to a spatial host-pathogen model

被引:32
作者
de Aguiar, MAM [1 ]
Rauch, EM
Bar-Yam, Y
机构
[1] New England Complex Syst Inst, Cambridge, MA 02138 USA
[2] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP, Brazil
[3] MIT, Artificial Intelligence Lab, Cambridge, MA 02139 USA
[4] Harvard Univ, Dept Mol & Cellular Biol, Cambridge, MA 02138 USA
来源
PHYSICAL REVIEW E | 2003年 / 67卷 / 04期
基金
美国国家科学基金会;
关键词
D O I
10.1103/PhysRevE.67.047102
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
We study the mean-field approximation to a simple spatial host-pathogen model that has been shown to display interesting evolutionary properties. We show that previous derivations of the mean-field equations for this model are actually only low-density approximations to the true mean-field limit. We derive the correct equations and the corresponding equations including pair correlations. The process of invasion by a mutant type of pathogen is also discussed.
引用
收藏
页数:4
相关论文
共 21 条
[11]   A THEORY OF COOPERATIVE PHENOMENA [J].
KIKUCHI, R .
PHYSICAL REVIEW, 1951, 81 (06) :988-1003
[12]   NEW APPROXIMATE METHOD FOR ISING SYSTEM [J].
MAMADA, H ;
TAKANO, F .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1968, 25 (03) :675-&
[13]   INVASION, STABILITY AND EVOLUTION TO CRITICALITY IN SPATIALLY EXTENDED, ARTIFICIAL HOST-PATHOGEN ECOLOGIES [J].
RAND, DA ;
KEELING, M ;
WILSON, HB .
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES, 1995, 259 (1354) :55-63
[14]   Relationship between measures of fitness and time scale in evolution [J].
Rauch, EM ;
Sayama, H ;
Bar-Yam, Y .
PHYSICAL REVIEW LETTERS, 2002, 88 (22) :4-228101
[15]   Dynamics and genealogy of strains in spatially extended host-pathogen models [J].
Rauch, EM ;
Sayama, H ;
Bar-Yam, Y .
JOURNAL OF THEORETICAL BIOLOGY, 2003, 221 (04) :655-664
[16]   PATHOGEN INVASION AND HOST EXTINCTION IN LATTICE STRUCTURED POPULATIONS [J].
SATO, K ;
MATSUDA, H ;
SASAKI, A .
JOURNAL OF MATHEMATICAL BIOLOGY, 1994, 32 (03) :251-268
[17]   STOCHASTIC LATTICE-GAS MODEL FOR A PREDATOR-PREY SYSTEM [J].
SATULOVSKY, JE ;
TOME, T .
PHYSICAL REVIEW E, 1994, 49 (06) :5073-5079
[18]   Symmetry breaking and coarsening in spatially distributed evolutionary processes including sexual reproduction and disruptive selection [J].
Sayama, H ;
Kaufman, L ;
Bar-Yam, Y .
PHYSICAL REVIEW E, 2000, 62 (05) :7065-7069
[19]   Spontaneous pattern formation and genetic invasion in locally mating and competing populations [J].
Sayama, Hiroki ;
De Aguiar, Marcus A.M. ;
Bar-Yam, Yaneer ;
Baranger, Michel .
Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 2002, 65 (05) :1-051919
[20]   LATTICE MODEL FOR THE LOTKA-VOLTERRA SYSTEM [J].
TAINAKA, K .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1988, 57 (08) :2588-2590