Please use this identifier to cite or link to this item: http://repo.lib.jfn.ac.lk/ujrr/handle/123456789/177
Title: Dynamics of a structured slug population model in the absence of seasonal variation
Authors: Bees, M.A
Angulo, O
López-Marcos, J.C
Schley, D
Keywords: Numerical integration;Slugs;Structured population model
Issue Date: Dec-2006
Publisher: World Scientific Publishing Company
Abstract: We develop a novel, nonlinear structured population model for the slug Deroceras reticulatum, a highly significant agricultural pest of great economic impact, in both organic and non-organic settings. In the absence of seasonal variations, we numerically explore the effect of life history traits that are dependent on an individual's size and measures of population biomass. We conduct a systematic exploration of parameter space and highlight the main mechanisms and implications of model design. A major conclusion of this work is that strong size dependent predation significantly adjusts the competitive balance, leading to non-monotonic steady state solutions and slowly decaying transients consisting of distinct generational cycles. Furthermore, we demonstrate how a simple ratio of adult to juvenile biomass can act as a useful diagnostic to distinguish between predated and non-predated environments, and may be useful in agricultural settings.
URI: http://repo.lib.jfn.ac.lk/ujrr/handle/123456789/177
ISSN: 02182025
Appears in Collections:Mathematics and Statistics

Files in This Item:
File Description SizeFormat 
Dynamics of a structured slug population model in the absence of seasonal variation-Bees.pdf176.17 kBAdobe PDFThumbnail
View/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.