Levy fights search patterns of biological organisms

被引：66

作者：

Viswanathan, GM ^{[1
]}

Afanasyev, V

Buldyrev, SV

Havlin, S

da Luz, MGE

Raposo, EP

Stanley, HE

机构：

[1] Univ Fed Alagoas, Dept Fis, BR-57075970 Maceio, AL, Brazil

[2] Univ Fed Pernambuco, Dept Fis, Lab Fis Teor & Computac, BR-50670901 Recife, PE, Brazil

[3] Univ Fed Parana, Dept Fis, BR-81531990 Curitiba, Parana, Brazil

[4] Bar Ilan Univ, Dept Phys, Ramat Gan, Israel

[5] Gonda Goldschmied Ctr, Ramat Gan, Israel

[6] Boston Univ, Dept Phys, Boston, MA 02215 USA

[7] Boston Univ, Ctr Polymer Studies, Boston, MA 02215 USA

[8] British Antarctic Survey, NERC, Cambridge CB3 0ET, England

来源：

PHYSICA A | 2001年 / 295卷 / 1-2期

关键词：

Levy flights; biological foraging;

D O I：

10.1016/S0378-4371(01)00057-7

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We discuss recent findings suggesting that an inverse square probability density distribution P(l)similar tol(-2) of step lengths l leads to an optimal random search strategy for organisms that can search efficiently for randomly located objects that can only be detected in the limited vicinity of the searcher and can be revisited any number of times. We explore the extent to which these findings may be dependent on the dimensionality of the search space and the presence of short-range correlations in the step lengths and directions. (C) 2001 Elsevier Science B.V, All rights reserved.

引用

页码：85 / 88

页数：4

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PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 2000, 282 (1-2) :1-12

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