title: Generalized Allee effect model.
abstract: The Allee effect consists of a positive correlation between very small population size and fitness. Offering a new view point on the weak and strong demographic Allee effect, we propose to combine them with the Richards growth model. In particular, a peculiar manifestation of the Allee effect is analytically predicted and still not validated by experiments. Model validation with ecological data is presented for some special situations.
authors.affiliation: Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP), Universidade de São Paulo (USP), Avenida dos Bandeirantes, 3900, 14.040-901, Ribeirão Preto, SP, Brazil, lsoaressantos@usp.br.
authors.forename: Lindomar S
authors.initials: LS
authors.lastname: dos Santos
authors.forename: Brenno C T
authors.initials: BC
authors.lastname: Cabella
authors.forename: Alexandre S
authors.initials: AS
authors.lastname: Martinez
mesh_terms: D000465:Algorithms; D000818:Animals; D003198:Computer Simulation; D056084:Genetic Fitness; D005828:Genetics, Population; D006801:Humans; D008957:Models, Genetic; D008962:Models, Theoretical; D011158:Population Growth; D016019:Survival Analysis