Use of individual-based models for population parameters estimation
Authored by Gianni Gilioli, Sara Pasquali
Date Published: 2007
DOI: 10.1016/j.ecolmodel.2006.07.017
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Abstract
A method for parameters estimation of stage-specific mortality and
fecundity rate functions in poikilotherm organisms, and in particular
for arthropod structured population, is proposed. The application of
this method requires three types of information: stage-frequency data of
a sampled population, development rate function and time evolution of
forcing variables affecting the rate functions. By means of an
individual-based model (a microscopic model) the number of eggs produced
by the adults is generated starting from the number of individuals
collected at each sampling time. Using a compartmental model (a
macroscopic model) a stage-structured population dynamics is described
and compared with observations. Non-linear regression methods based on
least square principle are used to estimate the optimal parameters of
the mortality and fecundity rate functions combining microscopic and
macroscopic models. As a case study, the parameter estimation of the
temperature-dependent mortality function of olives fruit fly Bactrocera
oleae is presented. (c) 2006 Elsevier B.V. All rights reserved.
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Structured population