title: Fractal dimension of birds population sizes time series.
abstract: Information about fractal dimension is collected so that it can be applied to time series interpreting Hurst coefficient. The population size of a species is modelled as a dynamic system. The Hurst coefficient is calculated for these times series. A computer programme has been elaborated to compute the Hurst exponent of time series using the algorithms of range increment, second order moment increment and local second order moment increment. It has been applied to time series of birds' populations.
authors.affiliation: Department of Agro-Forest Ecosystems, Higher Technical School of Rural Environments and Enology, Polytechnic University of Valencia, Av. Blasco Ibáñez 21, 46010 Valencia, Spain. algarsal@upvnet.upv.es
authors.forename: Alfonso
authors.initials: A
authors.lastname: Garmendia
authors.forename: Adela
authors.initials: A
authors.lastname: Salvador
mesh_terms: D000465:Algorithms; D000818:Animals; D017753:Ecosystem; D005060:Europe; D005583:Fourier Analysis; D017709:Fractals; D008954:Models, Biological; D046109:Passeriformes / Q000502:physiology*; D011156:Population Density; D011157:Population Dynamics