Distributed Delay Model and Von Foerster's equation: Different points of view to describe insects' life cycles with chronological age and physiological time

Rossini, Luca; Speranza, Stefano; Contarini, Mario

doi:10.1016/j.ecoinf.2020.101117

Cited by 15 publications

(10 citation statements)

References 27 publications

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“…Nevertheless, to date there is some missing biological information and a series of simplifications is required. The main issue is related to the environmental parameters: in fact, there are no analytical functions to represent the variation of the daily average temperature or relative humidity throughout the year [29][30][31]. Accordingly, there is no possibility of calculating analytical solutions for the Equation 1, and it makes necessary the use of numerical solutions, in order to increase the precision of the simulations.…”

Section: Males Population Modellingmentioning

confidence: 99%

“…The comparison was conducted using the χ 2 function and the coefficient of determination R 2 , since this methodology was successfully applied to provide a clear idea of the level of overlap between field data and simulations with the Equation (1) [25,26,28,30,32].…”

Section: Data Analysis and Comparison Between Simulations And Field Datamentioning

confidence: 99%

“…Once the best fit parameters were available, the second step of the model application was the choice of the best representing expression for the life tables data through the "a priori analysis" proposed by Rossini et al [26,28,30]. The method provides for the choice of the expression which reported the best result from the χ 2 test and an R 2 value close to 1.…”

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confidence: 99%

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Modelling Drosophila suzukii Adult Male Populations: A Physiologically Based Approach with Validation

Rossini

Contarini

Giarruzzo

et al. 2020

Insects

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The Spotted Wing Drosophila (SWD), Drosophila suzukii (Matsumura), is a harmful insect pest for soft fruit cultivations. Even though its main hosts belong to the genera Prunus and Rubus, its high polyphagy and adaptability to new environments makes it a serious problem for farmers worldwide, who have reported several economic losses because of this pest. A wide series of proposals to control SWD are available and operate in line with the mechanisms of integrated pest management, demonstrating their high efficiency when applied at the opportune moment. This work aims to apply and validate a physiologically based model which summarises all the available information about D. suzukii biology, such as the relationship between environmental temperature and its development, fertility and mortality rates. The model provided, as a result, a description of a population of SWD females taking into consideration the multiple generations that occurred during the year. Simulations were then compared with field data collected in a three-year survey in two experimental fields located in the Sabina Romana area (Lazio, Italy). More specifically, D. suzukii males were monitored with traps in fields cultivated with mixed varieties of cherries and they were selected because of their clearer identification in comparison to females. Results showed a high level of reliability of simulations in representing the field data, highlighting at the same time that there is no discrepancy in simulating D. suzukii females in order to represent male populations.

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Section: Males Population Modellingmentioning

confidence: 99%

Section: Data Analysis and Comparison Between Simulations And Field Datamentioning

confidence: 99%

mentioning

confidence: 99%

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Modelling Drosophila suzukii Adult Male Populations: A Physiologically Based Approach with Validation

Rossini

Contarini

Giarruzzo

et al. 2020

Insects

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“…On the other hand, a reliable DSS should provide a temporal variation of the population density, more comparable with field monitoring. Hence, there is a need for a model which can merge these two fundamental conditions, describing a population of ectotherms developing over time and through the life stages (Rossini et al, 2020f).…”

Section: Mathematical Representation Of Population Dynamicsmentioning

confidence: 99%

“…The hypothesised number of eggs is assumed to be laid in a specific day, estimated as follows. Starting from the first adult's catch, the temperatures recorded in the previous days can be averaged, providing the so called 'total development temperature' (Colinet et al, 2015;Rossini et al, 2020f). The latter can then be processed with the development rate function, which roughly provides the number of days the insects probably needed to complete their egg-adult stage.…”

Section: Mathematical Representation Of Population Dynamicsmentioning

confidence: 99%

Evaluation of a physiologically based model to predict Dalbulus maidis occurrence in maize crops: validation in two different subtropical areas of South America

Rossini

Virla

Albarracin

et al. 2021

Entomologia Exp Applicata

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The maize leafhopper, Dalbulus maidis (DeLong) (Hemiptera: Cicadellidae), is a specialist herbivore that develops on maize plants (Zea mays L., Poaceae). Every year, it is responsible for considerable reductions in yields of the maize fields of the Americas, because alongside its direct damages it is also a vector of three relevant plant pathogens. The transmitted diseases come to have a high incidence, resulting in significant yield losses, thereby forcing farmers and technicians to attempt a tight control of the fields mostly using non-specific insecticides. Decision support systems based on mathematical models may be valuable in helping to reduce the use of agrochemicals in this regard, as they can provide a projection of the future situation based on past and present data. With this precondition, this work aims to apply and validate a physiologically based model to describe populations of D. maidis developing in two experimental fields located in Argentina, which are characterised by different climatic conditions. Experimentation in the two fields involved a 3-year survey during the growing seasons 2009, 2010, and 2011, where the adult populations of maize leafhoppers were monitored from the sowing of maize plants to the end of the phenological stage at which they are most susceptible to D. maidis activity. Results showed a good response of the model in describing maize leafhopper populations, also allowing the possibility of setting a threshold for intervention and a projection of the situation if any control action is applied.

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Modelling ectotherms’ populations considering physiological age structure and spatial motion: A novel approach

Rossini

Rosselló

Contarini

et al. 2022

Ecological Informatics

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Distributed Delay Model and Von Foerster's equation: Different points of view to describe insects' life cycles with chronological age and physiological time

Cited by 15 publications

References 27 publications

Modelling Drosophila suzukii Adult Male Populations: A Physiologically Based Approach with Validation

Modelling Drosophila suzukii Adult Male Populations: A Physiologically Based Approach with Validation

Evaluation of a physiologically based model to predict Dalbulus maidis occurrence in maize crops: validation in two different subtropical areas of South America

Modelling ectotherms’ populations considering physiological age structure and spatial motion: A novel approach

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