Effect of temporal and spatial noise colour in insect outbreak frequency
Insect outbreaks are a common multicausal population phenomenon that is characterised by a fast growth of the population, followed by an equally sudden collapse in a relatively short period in the manner of an excitable system. If the outbreaking insect is herbivorous or attacks trees or plants as a...
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| Format: | Artículo |
| Language: | Inglés |
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Springer
2023
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| Online Access: | http://hdl.handle.net/20.500.12123/14696 https://link.springer.com/article/10.1007/s12080-023-00553-5 https://doi.org/10.1007/s12080-023-00553-5 |
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| author | Bruzzone, Octavio Augusto Righetti, Tomás Faltlhauser, Ana Claudia Aguirre, María Belén Sosa, Alejandro Joaquin |
| author_browse | Aguirre, María Belén Bruzzone, Octavio Augusto Faltlhauser, Ana Claudia Righetti, Tomás Sosa, Alejandro Joaquin |
| author_facet | Bruzzone, Octavio Augusto Righetti, Tomás Faltlhauser, Ana Claudia Aguirre, María Belén Sosa, Alejandro Joaquin |
| author_sort | Bruzzone, Octavio Augusto |
| collection | INTA Digital |
| description | Insect outbreaks are a common multicausal population phenomenon that is characterised by a fast growth of the population, followed by an equally sudden collapse in a relatively short period in the manner of an excitable system. If the outbreaking insect is herbivorous or attacks trees or plants as a part of its life cycle, this phenomenon causes a major impact on the plant’s population. As a consequence, outbreaks are a major cause of vegetation loss and tree mortality in ecosystems. Among the several causes of outbreaks, climatic/environmental variation is one of the most important. For example, droughts can weaken plant defences making them more susceptible to insect herbivore attacks. As the climatic-driven effects on plant populations are correlated to time and space, not only the type of variability but also its magnitude, are of key importance for the appearance of this phenomenon. In theoretical studies, noise colour is usually used as a proxy to represent the variability of forcing external variables, such as climate. In this study, we conducted a series of simulations using a spatially explicit model to analyse the effect of combining several types of spatial and temporal environmental noise colours (red, pink, white, blue, violet, and grey) on the frequency of outbreaks. We found that the frequency of outbreaks increased with the autocorrelation of noise. The combination of spatial and temporal white noise showed a low-risk scenario, while pink noise had a much higher frequency of this phenomenon. However, the combination of spatial grey noise (a noise composed of both low and high frequencies), with temporal low-frequency noise, resulted in all simulations causing severe outbreaks. We suggest two explanations for this. On one hand, the presence of high-frequency noise gave the herbivore the ability to percolate through refugees caused by the low-frequency noise; and, on the other hand, low-frequency temporal noise gave the herbivore time to kill all simulated host plants. |
| format | Artículo |
| id | INTA14696 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | INTA146962023-07-04T20:07:09Z Effect of temporal and spatial noise colour in insect outbreak frequency Bruzzone, Octavio Augusto Righetti, Tomás Faltlhauser, Ana Claudia Aguirre, María Belén Sosa, Alejandro Joaquin Insectos Dañinos Dinámica de Poblaciones Distribución Espacial Ruido Pest Insects Population Dynamics Spatial Distribution Noise Ruido de Alta Frecuencia Ruido de Baja Frecuencia Insect outbreaks are a common multicausal population phenomenon that is characterised by a fast growth of the population, followed by an equally sudden collapse in a relatively short period in the manner of an excitable system. If the outbreaking insect is herbivorous or attacks trees or plants as a part of its life cycle, this phenomenon causes a major impact on the plant’s population. As a consequence, outbreaks are a major cause of vegetation loss and tree mortality in ecosystems. Among the several causes of outbreaks, climatic/environmental variation is one of the most important. For example, droughts can weaken plant defences making them more susceptible to insect herbivore attacks. As the climatic-driven effects on plant populations are correlated to time and space, not only the type of variability but also its magnitude, are of key importance for the appearance of this phenomenon. In theoretical studies, noise colour is usually used as a proxy to represent the variability of forcing external variables, such as climate. In this study, we conducted a series of simulations using a spatially explicit model to analyse the effect of combining several types of spatial and temporal environmental noise colours (red, pink, white, blue, violet, and grey) on the frequency of outbreaks. We found that the frequency of outbreaks increased with the autocorrelation of noise. The combination of spatial and temporal white noise showed a low-risk scenario, while pink noise had a much higher frequency of this phenomenon. However, the combination of spatial grey noise (a noise composed of both low and high frequencies), with temporal low-frequency noise, resulted in all simulations causing severe outbreaks. We suggest two explanations for this. On one hand, the presence of high-frequency noise gave the herbivore the ability to percolate through refugees caused by the low-frequency noise; and, on the other hand, low-frequency temporal noise gave the herbivore time to kill all simulated host plants. EEA Bariloche Fil: Bruzzone, Octavio Augusto. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina Fil: Bruzzone, Octavio Augusto. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina Fil: Bruzzone, Octavio Augusto. Consejo Nacional de Investigaciones Científica y Técnicas; Argentina Fil: Righetti, Tomás. Fundación para el Estudio de Especies Invasivas; Argentina Fil: Righetti, Tomás. Consejo Nacional de Investigaciones Científica y Técnicas; Argentina Fil: Faltlhauser, Ana Claudia. Fundación para el Estudio de Especies Invasivas; Argentina Fil: Faltlhauser, Ana Claudia. Consejo Nacional de Investigaciones Científica y Técnicas; Argentina Fil: Aguirre, María Belén. Fundación para el Estudio de Especies Invasivas; Argentina Fil: Sosa, Alejandro Joaquin. Fundación para el Estudio de Especies Invasivas; Argentina Fil: Sosa, Alejandro Joaquin. Consejo Nacional de Investigaciones Científica y Técnicas; Argentina 2023-07-04T19:56:56Z 2023-07-04T19:56:56Z 2023-06 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/14696 https://link.springer.com/article/10.1007/s12080-023-00553-5 1874-1746 https://doi.org/10.1007/s12080-023-00553-5 eng info:eu-repo/semantics/restrictedAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Springer Theoretical Ecology 16 : 35-45. (2023) |
| spellingShingle | Insectos Dañinos Dinámica de Poblaciones Distribución Espacial Ruido Pest Insects Population Dynamics Spatial Distribution Noise Ruido de Alta Frecuencia Ruido de Baja Frecuencia Bruzzone, Octavio Augusto Righetti, Tomás Faltlhauser, Ana Claudia Aguirre, María Belén Sosa, Alejandro Joaquin Effect of temporal and spatial noise colour in insect outbreak frequency |
| title | Effect of temporal and spatial noise colour in insect outbreak frequency |
| title_full | Effect of temporal and spatial noise colour in insect outbreak frequency |
| title_fullStr | Effect of temporal and spatial noise colour in insect outbreak frequency |
| title_full_unstemmed | Effect of temporal and spatial noise colour in insect outbreak frequency |
| title_short | Effect of temporal and spatial noise colour in insect outbreak frequency |
| title_sort | effect of temporal and spatial noise colour in insect outbreak frequency |
| topic | Insectos Dañinos Dinámica de Poblaciones Distribución Espacial Ruido Pest Insects Population Dynamics Spatial Distribution Noise Ruido de Alta Frecuencia Ruido de Baja Frecuencia |
| url | http://hdl.handle.net/20.500.12123/14696 https://link.springer.com/article/10.1007/s12080-023-00553-5 https://doi.org/10.1007/s12080-023-00553-5 |
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