Aphid population response to agricultural landscape change: A spatially explicit, indlividual-based model
Authored by Andrew J Evans, Hazel R Parry, Derek Morgan
Date Published: 2006
DOI: 10.1016/j.ecolmodel.2006.01.006
Sponsors:
Central Science Laboratory (Defra Seedcorn)
Platforms:
Repast
Java
Model Documentation:
Other Narrative
Flow charts
Mathematical description
Model Code URLs:
Model code not found
Abstract
A spatially explicit individual-based simulation model has been
developed to represent aphid population dynamics in agricultural
landscapes. The application of the model to Rhopalosiphum padi (L.)
population dynamics is detailed, including an outline of the
construction of the model, its parameterisation and validation. Over
time, the aphids interact with the landscape and with one another. The
landscape is modified by varying a simple pesticide regime, and the
multi-scale spatial and temporal implications for a population of aphids
is analysed. The results show that a spatial modelling approach that
considers the effects on the individual of landscape properties and
factors such as wind speed and wind direction provides novel insight
into aphid population dynamics both spatially and temporally. This forms
the basis for the development of further simulation models that can be
used to analyse how changes in landscape structure impact upon important
species distributions and population dynamics. (c) 2006 Elsevier B.V.
All rights reserved.
Tags
Migration
Management
Simulations
ecology
Temperature
Flight
Winter-wheat
Rhopalosiphum-padi l
Cherry-oat aphid
Cereal aphids