Large-Scale Modelling of the Environmentally-Driven Population Dynamics of Temperate Aedes albopictus (Skuse)
Author(s)
Type
Journal Article
Abstract
The Asian tiger mosquito, Aedes albopictus, is a highly invasive vector species. It is a proven vector of dengue and chikungunya viruses, with the potential to host a further 24 arboviruses. It has recently expanded its geographical range, threatening many countries in the Middle East, Mediterranean, Europe and North America. Here, we investigate the theoretical limitations of its range expansion by developing an environmentally-driven mathematical model of its population dynamics. We focus on the temperate strain of Ae. albopictus and compile a comprehensive literature-based database of physiological parameters. As a novel approach, we link its population dynamics to globally-available environmental datasets by performing inference on all parameters. We adopt a Bayesian approach using experimental data as prior knowledge and the surveillance dataset of Emilia-Romagna, Italy, as evidence. The model accounts for temperature, precipitation, human population density and photoperiod as the main environmental drivers, and, in addition, incorporates the mechanism of diapause and a simple breeding site model. The model demonstrates high predictive skill over the reference region and beyond, confirming most of the current reports of vector presence in Europe. One of the main hypotheses derived from the model is the survival of Ae. albopictus populations through harsh winter conditions. The model, constrained by the environmental datasets, requires that either diapausing eggs or adult vectors have increased cold resistance. The model also suggests that temperature and photoperiod control diapause initiation and termination differentially. We demonstrate that it is possible to account for unobserved properties and constraints, such as differences between laboratory and field conditions, to derive reliable inferences on the environmental dependence of Ae. albopictus populations.
Date Issued
2016-02-12
Date Acceptance
2016-01-03
Citation
PLOS One, 2016, 11 (2)
ISSN
1932-6203
Publisher
Public Library of Science
Journal / Book Title
PLOS One
Volume
11
Issue
2
Copyright Statement
© 2016 Erguler et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
License URL
Sponsor
Wellcome Trust
The Cyprus Institute Ltd
Grant Number
097816/Z/11/B
NA
Subjects
Science & Technology
Multidisciplinary Sciences
Science & Technology - Other Topics
BLOOD-FEEDING BEHAVIOR
DIPTERA-CULICIDAE
ANOPHELES-GAMBIAE
AEGYPTI DIPTERA
CHIKUNGUNYA-DISEASE
RANGE EXPANSION
EMILIA-ROMAGNA
VECTOR
SURVIVAL
DENGUE
Animals
Humans
Aedes
Dengue Virus
Chikungunya virus
Dengue
Bayes Theorem
Ecosystem
Temperature
Climate
Insect Vectors
Population Dynamics
Models, Biological
Computer Simulation
Middle East
Europe
Animal Distribution
Diapause, Insect
Chikungunya Fever
General Science & Technology
MD Multidisciplinary
Publication Status
Published
Article Number
e0149282