Are all edges equal? Microclimatic conditions, geographical orientation and biological implications in a fragmented forest
In fragmented forests the edges experience changes in microclimatic conditions, which are referred to as “abiotic edge effect”, and differ according to geographical orientation and season. These microclimatic changes could influence the development rate of the organisms (particularly for movement- r...
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
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Elsevier
2024
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.12123/17922 https://www.sciencedirect.com/science/article/pii/S0167880919301227 https://doi.org/10.1016/j.agee.2019.04.035 |
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| author | Bernaschini, María Laura Trumper, Eduardo Victor Valladares, Graciela Salvo, Adriana |
| author_browse | Bernaschini, María Laura Salvo, Adriana Trumper, Eduardo Victor Valladares, Graciela |
| author_facet | Bernaschini, María Laura Trumper, Eduardo Victor Valladares, Graciela Salvo, Adriana |
| author_sort | Bernaschini, María Laura |
| collection | INTA Digital |
| description | In fragmented forests the edges experience changes in microclimatic conditions, which are referred to as “abiotic edge effect”, and differ according to geographical orientation and season. These microclimatic changes could influence the development rate of the organisms (particularly for movement- restricted ones like leaf miner larvae and their parasitoids) and, consequently, their population dynamics. The aim of this study was to compare the abiotic edge effect in differently oriented edges in summer and winter seasons, and evaluate possible implications on insect development, using a simulation based on a degree-day approach. To compare the abiotic edge effect, we took continuous and point measurements of microclimatic variables such as temperature, humidity, wind velocity and interception of photosynthetically active radiation in three microhabitats: interior (I), north-facing edges (NE) and south-facing edges (SE) of six fragments of Chaco Serrano forest, in winter and summer seasons. As we expected, the microclimatic edge effect was greater in NE compared to SE in both seasons. In winter, the differences were more pronounced only for continuous measurements of temperature. Our simulation exercise suggested that differences in temperature among microhabitats may have biological implications on insect populations, affecting their development time. At larger scales, an increase of temperature could lead to more frequent pest outbreaks which could extend their distribution range to higher latitudes. Our f indings emphasize the need to consider geographical orientation and season variations when studying edge effects on insect populations. In the context of climate change, organisms could restrict their distributions to habitats with more suitable conditions, becoming microrefuges that could allow them to survive. Moreover, in fragmented landscapes, identifying microhabitats benefitting or harming insect populations is an important step to design management strategies towards pest control or natural enemy conservation in agricultural settings. |
| format | info:ar-repo/semantics/artículo |
| id | INTA17922 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA179222024-05-28T10:54:36Z Are all edges equal? Microclimatic conditions, geographical orientation and biological implications in a fragmented forest Bernaschini, María Laura Trumper, Eduardo Victor Valladares, Graciela Salvo, Adriana Seasons insects Pest Control Natural Enemies Microclimate Forests Estaciones del Año Insectos Control de Plagas Enemigos Naturales Microclima Bosques Edge Effect Microclimatic conditions Degree-day Efecto Borde Condiciones Microclimáticas Grado-día In fragmented forests the edges experience changes in microclimatic conditions, which are referred to as “abiotic edge effect”, and differ according to geographical orientation and season. These microclimatic changes could influence the development rate of the organisms (particularly for movement- restricted ones like leaf miner larvae and their parasitoids) and, consequently, their population dynamics. The aim of this study was to compare the abiotic edge effect in differently oriented edges in summer and winter seasons, and evaluate possible implications on insect development, using a simulation based on a degree-day approach. To compare the abiotic edge effect, we took continuous and point measurements of microclimatic variables such as temperature, humidity, wind velocity and interception of photosynthetically active radiation in three microhabitats: interior (I), north-facing edges (NE) and south-facing edges (SE) of six fragments of Chaco Serrano forest, in winter and summer seasons. As we expected, the microclimatic edge effect was greater in NE compared to SE in both seasons. In winter, the differences were more pronounced only for continuous measurements of temperature. Our simulation exercise suggested that differences in temperature among microhabitats may have biological implications on insect populations, affecting their development time. At larger scales, an increase of temperature could lead to more frequent pest outbreaks which could extend their distribution range to higher latitudes. Our f indings emphasize the need to consider geographical orientation and season variations when studying edge effects on insect populations. In the context of climate change, organisms could restrict their distributions to habitats with more suitable conditions, becoming microrefuges that could allow them to survive. Moreover, in fragmented landscapes, identifying microhabitats benefitting or harming insect populations is an important step to design management strategies towards pest control or natural enemy conservation in agricultural settings. EEA Manfredi Fil: Bernaschini, María Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto Multidisciplinario de Biología Vegetal; Argentina. Universidad Nacional de Córdoba. Instituto Multidisciplinario de Biología Vegetal; Argentina. Fil: Bernaschini, María Laura. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Centro de Investigaciones Entomológicas de Córdoba; Argentina Fil: Trumper, Eduardo Victor. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Manfredi; Argentina Fil: Valladares, Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto Multidisciplinario de Biología Vegetal; Argentina. Universidad Nacional de Córdoba. Instituto Multidisciplinario de Biología Vegetal; Argentina. Fil: Valladares, Graciela. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Centro de Investigaciones Entomológicas de Córdoba; Argentina Fil: Salvo, Adriana. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto Multidisciplinario de Biología Vegetal; Argentina. Universidad Nacional de Córdoba. Instituto Multidisciplinario de Biología Vegetal; Argentina. Fil: Salvo, Adriana. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Centro de Investigaciones Entomológicas de Córdoba; Argentina 2024-05-28T10:38:25Z 2024-05-28T10:38:25Z 2019-08-01 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/17922 https://www.sciencedirect.com/science/article/pii/S0167880919301227 0167-8809 1873-2305 https://doi.org/10.1016/j.agee.2019.04.035 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 Elsevier Agriculture, Ecosystems and Environment 280 : 142-151. (August 2019) |
| spellingShingle | Seasons insects Pest Control Natural Enemies Microclimate Forests Estaciones del Año Insectos Control de Plagas Enemigos Naturales Microclima Bosques Edge Effect Microclimatic conditions Degree-day Efecto Borde Condiciones Microclimáticas Grado-día Bernaschini, María Laura Trumper, Eduardo Victor Valladares, Graciela Salvo, Adriana Are all edges equal? Microclimatic conditions, geographical orientation and biological implications in a fragmented forest |
| title | Are all edges equal? Microclimatic conditions, geographical orientation and biological implications in a fragmented forest |
| title_full | Are all edges equal? Microclimatic conditions, geographical orientation and biological implications in a fragmented forest |
| title_fullStr | Are all edges equal? Microclimatic conditions, geographical orientation and biological implications in a fragmented forest |
| title_full_unstemmed | Are all edges equal? Microclimatic conditions, geographical orientation and biological implications in a fragmented forest |
| title_short | Are all edges equal? Microclimatic conditions, geographical orientation and biological implications in a fragmented forest |
| title_sort | are all edges equal microclimatic conditions geographical orientation and biological implications in a fragmented forest |
| topic | Seasons insects Pest Control Natural Enemies Microclimate Forests Estaciones del Año Insectos Control de Plagas Enemigos Naturales Microclima Bosques Edge Effect Microclimatic conditions Degree-day Efecto Borde Condiciones Microclimáticas Grado-día |
| url | http://hdl.handle.net/20.500.12123/17922 https://www.sciencedirect.com/science/article/pii/S0167880919301227 https://doi.org/10.1016/j.agee.2019.04.035 |
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