Efecto de incendios forestales en la riqueza y abundancia de órdenes de artrópodos caminadores, Provincia de Concepción.
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Date
2025
Journal Title
Journal ISSN
Volume Title
Publisher
Universidad de Concepción
Abstract
Los incendios forestales son considerados un tipo de disturbio que puede ser de origen natural o antrópico, los cuales generan cambios en la estructura y composición de los bosques. Los artrópodos responden ante cambios ambientales como disturbios de forma rápida debido a que son ectotermos, tienen ciclos de vida más cortos, por lo tanto, pueden ser utilizados como bioindicadores. El objetivo del presente estudio fue analizar el efecto de los incendios forestales ocurrido en febrero del 2023 en el ensamble de artrópodos caminadores camino a la localidad de Rafael, comuna de Tomé. Para ello se instalaron trampas de caída durante los meses de octubre y diciembre del año 2023 en un bosque de Nothofagus obliqua y un bosque pantanoso de Myrceugenia exsucca con y sin efecto del incendio. Los resultados mostraron que el orden más abundante en ambos meses fue Diptera en todos los ecosistemas muestreados. Los bosques quemados presentaron menores abundancia en octubre, pero durante el mes de diciembre aumentaron. Existen algunos órdenes que presentaron diferencias significativas en cuanto a su contribución. Para la riqueza no se encontraron diferencias significativas entre los bosques quemados y no quemados. El efecto de los incendios forestales en la comunidad de artrópodos es variado y depende de la capacidad de la recuperación del bosque y la capacidad de adaptación de los insectos.
Forest fires are considered a type of disturbance that can be natural or anthropogenic in origin, causing changes in the structure and composition of forests. Arthropods respond quickly to environmental changes such as disturbances because they are ectothermic and have shorter life cycles and can therefore be used as bioindicators. The objective of this study was to analyze the effect of the forest fires that occurred in February 2023 on the assemblage of walking arthropods on the road to the town of Rafael, in the municipality of Tomé. To this end, pitfall traps were installed during the months of October and December 2023 in a Nothofagus obliqua forest and a Myrceugenia exsucca swamp forest with and without the effect of fire. The results showed that the most abundant order in both months was Diptera in all sampled ecosystems. The burned forests had lower abundance in October but increased during the month of December. There are some orders that showed significant differences in terms of their contribution. No significant differences were found between burned and unburned forests in terms of richness. The effect of forest fires on the arthropod community is varied and depends on the forest's recovery capacity and the insects ability to adapt.
Forest fires are considered a type of disturbance that can be natural or anthropogenic in origin, causing changes in the structure and composition of forests. Arthropods respond quickly to environmental changes such as disturbances because they are ectothermic and have shorter life cycles and can therefore be used as bioindicators. The objective of this study was to analyze the effect of the forest fires that occurred in February 2023 on the assemblage of walking arthropods on the road to the town of Rafael, in the municipality of Tomé. To this end, pitfall traps were installed during the months of October and December 2023 in a Nothofagus obliqua forest and a Myrceugenia exsucca swamp forest with and without the effect of fire. The results showed that the most abundant order in both months was Diptera in all sampled ecosystems. The burned forests had lower abundance in October but increased during the month of December. There are some orders that showed significant differences in terms of their contribution. No significant differences were found between burned and unburned forests in terms of richness. The effect of forest fires on the arthropod community is varied and depends on the forest's recovery capacity and the insects ability to adapt.
Description
Tesis presentada para optar al título de Ingeniera Forestal.
Keywords
Incendios forestales, Artrópodos Chile, Insectos