title: Species abundance patterns in complex evolutionary dynamics.
abstract: An analytic theory of species abundance patterns (SAPs) in biological networks is presented. The theory is based on multispecies replicator dynamics equivalent to the Lotka-Volterra equation, with diverse interspecies interactions. Various SAPs observed in nature are derived from a single parameter. The abundance distribution is formed like a widely observed left-skewed lognormal distribution. As the model has a general form, the result can be applied to similar patterns in other complex biological networks, e.g., gene expression.
authors.affiliation: Program for Evolutionary Dynamics, Harvard University, One Brattle Square, Cambridge, Massachusetts 02138, USA. tokita@cmc.osaka-u.ac.jp
authors.forename: Kei
authors.initials: K
authors.lastname: Tokita
mesh_terms: D000818:Animals; D005075:Biological Evolution; D003163:Competitive Behavior; D017753:Ecosystem; D008954:Models, Biological; D011157:Population Dynamics