scholarly journals Impact of temperature variation on spatial population dynamics of Aedes aegypti

2020 ◽  
Vol 5 (6) ◽  
Author(s):  
Monalisa Reis Da Silva ◽  
Pedro Henrique Gasparetto Lugão ◽  
Grigori Chapiro
Keyword(s):  
Population Dynamics ◽  
Partial Differential Equations ◽  
Aedes Aegypti ◽  
Temperature Variation ◽  
Rainy Season ◽  
Influence Of Temperature ◽  
Numerical Resolution ◽  
Spatial Population ◽  
Different Temperatures ◽  
Spatial Population Dynamics

This work aims to study a model of partial differential equations (PDE) for the population dynamics of the Aedes aegypti mosquito. We propose a numerical resolution using finite volumes. We evaluated the influence of temperature in modeling the parameters and the results for simulations at three different temperatures. The obtained results encourage a discussion about the importance of prevention during the rainy season and compare the cases of dengue during the first thirty epidemiological weeks of two thousand and nineteen.

scholarly journals Modeling and simulation of the spatial population dynamics of the Aedes aegypti mosquito with an insecticide application

2020 ◽  
Vol 13 (1) ◽  
Author(s):  
Monalisa R. Silva ◽  
Pedro H. G. Lugão ◽  
Grigori Chapiro
Keyword(s):  
Population Dynamics ◽  
Partial Differential Equations ◽  
Aedes Aegypti ◽  
Differential Equations ◽  
Large Scale ◽  
Spatial Dynamics ◽  
Partial Differential ◽  
Insecticide Application ◽  
Spatial Population ◽  
Spatial Population Dynamics

Abstract Background The Aedes aegypti mosquito is the primary vector for several diseases. Its control requires a better understanding of the mosquitoes’ live cycle, including the spatial dynamics. Several models address this issue. However, they rely on many hard to measure parameters. This work presents a model describing the spatial population dynamics of Aedes aegypti mosquitoes using partial differential equations (PDEs) relying on a few parameters. Methods We show how to estimate model parameter values from the experimental data found in the literature using concepts from dynamical systems, genetic algorithm optimization and partial differential equations. We show that our model reproduces some analytical formulas relating the carrying capacity coefficient to experimentally measurable quantities as the maximum number of mobile female mosquitoes, the maximum number of eggs, or the maximum number of larvae. As an application of the presented methodology, we replicate one field experiment numerically and investigate the effect of different frequencies in the insecticide application in the urban environment. Results The numerical results suggest that the insecticide application has a limited impact on the mosquitoes population and that the optimal application frequency is close to one week. Conclusions Models based on partial differential equations provide an efficient tool for simulating mosquitoes’ spatial population dynamics. The reduced model can reproduce such dynamics on a sufficiently large scale.

scholarly journals Spatial population dynamics of eastern oyster in the Chesapeake Bay, Maryland

2021 ◽  
Vol 237 ◽  
pp. 105854
Author(s):  
Marvin M. Mace ◽  
Kathryn L. Doering ◽  
Michael J. Wilberg ◽  
Amy Larimer ◽  
Frank Marenghi ◽  
...  
Keyword(s):  
Population Dynamics ◽  
Chesapeake Bay ◽  
Eastern Oyster ◽  
Spatial Population ◽  
Spatial Population Dynamics

scholarly journals Unifying the spatial population dynamics and molecular evolution of epidemic rabies virus

2005 ◽  
Vol 102 (34) ◽  
pp. 12107-12111 ◽  
Author(s):  
L. A. Real ◽  
J. C. Henderson ◽  
R. Biek ◽  
J. Snaman ◽  
T. L. Jack ◽  
...  
Keyword(s):  
Population Dynamics ◽  
Molecular Evolution ◽  
Rabies Virus ◽  
Spatial Population ◽  
Spatial Population Dynamics
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