Dernière mise à jour le : 20 janvier 2012

Statistical analysis of polychaete population density: dynamics of dominant species and scaling properties in relative abundance ?uctuations

DESCRIPTION

We consider here the dynamics of two polychaete populations based on a 20 yr temporal benthic survey of two muddy ?ne sand communities in the Bay of Morlaix, Western English Channel. These populations display high temporal variability, which is analyzed here using scaling approaches. We ?nd that population densities have heavy tailed probability density functions. We analyze the dynamics of relative species abundance in two different communities of polychaetes by estimating in a novel way a mean square drift" coef?cient which characterizes their ?uctuations in relative abundance over time. We show the usefulness of using new tools to approach and model such highly variable population dynamics in marine ecosystems."

NOTICE BIBLIOGRAPHIQUE DETAILLÉE

keyboard_arrow_right Titre : Statistical analysis of polychaete population density: dynamics of dominant species and scaling properties in relative abundance ?uctuations
keyboard_arrow_right Type de documentation : Articles
keyboard_arrow_right Auteur(s) personne(s) : Dauvin, Jean-claude , Schmitt, F. G. , Quiroz-Martinez, B.
keyboard_arrow_right Date de publication : 20 janvier 2012
keyboard_arrow_right Editeur(s) : s. n.
keyboard_arrow_right Tags thématiques : invertébré, modélisation
keyboard_arrow_right Localisation : MORLAIX
keyboard_arrow_right Langue : Anglais
keyboard_arrow_right Collection : Nonlinear Processes in Geophysics

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