Diversidad de coleópteros epigeos en bosques de Nothofagus glauca y plantaciones de Pinus radiata en Chile central
Hualo forests (Nothofagus glauca) endemic from Chile have been impacted by anthropic processes such as substitution by exotic plantations of ensigned pine (Pinus radiata). The diversity of epigeous Coleoptera in Hualo forests, highly sensitive to changes, has been scarcely documented in Chile. It was evaluated the seasonal diversity of epigeous Coleoptera in three habitats (hualo forests, pine plantations, and mixed formations of pine plantations and hualo forests) in the area of Constitucion, central Chile. During the spring and summer were established three random linear transects of 100 m in three mature stands of each habitat, where 10 pitfall traps were installed every 10 m. For each habitat, the composition, abundance, and richness of epigeous beetles were estimated. The diversity of species was calculated per season using the Shannon-Wiener (H'), Pielou (J'), Chao 2, and Jacknife 1 indexes. Besides, rarefaction curves were built to estimate the expected richness. Nineteen Coleoptera native species belonging to 11 families were detected. In spring, the relative abundances of Coleoptera were significantly higher in pine plantations, followed by mixed formations and hualo forests. In summer, although the abundance was reduced, the predominance in the pine plantations remained stable. The relative richness in pine plantations and hualo forests was similar and superior to mixed formations in summer. However, it was inferred from the rarefaction curves, that only the sampling effort in summer was appropriated. The H' index was higher in mixed formations in spring, and in N. glauca forests in summer, coinciding with the highest J'. The results suggest that maintaining pine plantations, favors the conservation of epigeous Coleoptera, acting as reservoirs of biodiversity, possibly due to the greater tree cover and understory, in this particular habitat.
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Format: | Artículo de revista biblioteca |
Language: | Spanish / Castilian |
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Sociedad Colombiana de Entomología, Colombia
2021-09-06T13:50:04Z
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Subjects: | Nothofagus glauca, Pinus radiata, Coleoptera, Chile, Diversity, Neotropic, |
Online Access: | https://repositorio.uchile.cl/handle/2250/181824 |
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Nothofagus glauca Pinus radiata Coleoptera Chile Diversity Neotropic Nothofagus glauca Pinus radiata Coleoptera Chile Diversity Neotropic |
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Nothofagus glauca Pinus radiata Coleoptera Chile Diversity Neotropic Nothofagus glauca Pinus radiata Coleoptera Chile Diversity Neotropic Muñoz Alegría, Francisco Huerta Fuentes, Amanda Curkovic Sekul, Tomislav Diversidad de coleópteros epigeos en bosques de Nothofagus glauca y plantaciones de Pinus radiata en Chile central |
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Hualo forests (Nothofagus glauca) endemic from Chile have been impacted by anthropic processes such as substitution by exotic plantations of ensigned pine (Pinus radiata). The diversity of epigeous Coleoptera in Hualo forests, highly sensitive to changes, has been scarcely documented in Chile. It was evaluated the seasonal diversity of epigeous Coleoptera in three habitats (hualo forests, pine plantations, and mixed formations of pine plantations and hualo forests) in the area of Constitucion, central Chile. During the spring and summer were established three random linear transects of 100 m in three mature stands of each habitat, where 10 pitfall traps were installed every 10 m. For each habitat, the composition, abundance, and richness of epigeous beetles were estimated. The diversity of species was calculated per season using the Shannon-Wiener (H'), Pielou (J'), Chao 2, and Jacknife 1 indexes. Besides, rarefaction curves were built to estimate the expected richness. Nineteen Coleoptera native species belonging to 11 families were detected. In spring, the relative abundances of Coleoptera were significantly higher in pine plantations, followed by mixed formations and hualo forests. In summer, although the abundance was reduced, the predominance in the pine plantations remained stable. The relative richness in pine plantations and hualo forests was similar and superior to mixed formations in summer. However, it was inferred from the rarefaction curves, that only the sampling effort in summer was appropriated. The H' index was higher in mixed formations in spring, and in N. glauca forests in summer, coinciding with the highest J'. The results suggest that maintaining pine plantations, favors the conservation of epigeous Coleoptera, acting as reservoirs of biodiversity, possibly due to the greater tree cover and understory, in this particular habitat. |
format |
Artículo de revista |
topic_facet |
Nothofagus glauca Pinus radiata Coleoptera Chile Diversity Neotropic |
author |
Muñoz Alegría, Francisco Huerta Fuentes, Amanda Curkovic Sekul, Tomislav |
author_facet |
Muñoz Alegría, Francisco Huerta Fuentes, Amanda Curkovic Sekul, Tomislav |
author_sort |
Muñoz Alegría, Francisco |
title |
Diversidad de coleópteros epigeos en bosques de Nothofagus glauca y plantaciones de Pinus radiata en Chile central |
title_short |
Diversidad de coleópteros epigeos en bosques de Nothofagus glauca y plantaciones de Pinus radiata en Chile central |
title_full |
Diversidad de coleópteros epigeos en bosques de Nothofagus glauca y plantaciones de Pinus radiata en Chile central |
title_fullStr |
Diversidad de coleópteros epigeos en bosques de Nothofagus glauca y plantaciones de Pinus radiata en Chile central |
title_full_unstemmed |
Diversidad de coleópteros epigeos en bosques de Nothofagus glauca y plantaciones de Pinus radiata en Chile central |
title_sort |
diversidad de coleópteros epigeos en bosques de nothofagus glauca y plantaciones de pinus radiata en chile central |
publisher |
Sociedad Colombiana de Entomología, Colombia |
publishDate |
2021-09-06T13:50:04Z |
url |
https://repositorio.uchile.cl/handle/2250/181824 |
work_keys_str_mv |
AT munozalegriafrancisco diversidaddecoleopterosepigeosenbosquesdenothofagusglaucayplantacionesdepinusradiataenchilecentral AT huertafuentesamanda diversidaddecoleopterosepigeosenbosquesdenothofagusglaucayplantacionesdepinusradiataenchilecentral AT curkovicsekultomislav diversidaddecoleopterosepigeosenbosquesdenothofagusglaucayplantacionesdepinusradiataenchilecentral |
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dig-infor-cl-20.500.12220-305542023-06-20T14:43:23Z Diversidad de coleópteros epigeos en bosques de Nothofagus glauca y plantaciones de Pinus radiata en Chile central Muñoz Alegría, Francisco Huerta Fuentes, Amanda Curkovic Sekul, Tomislav Nothofagus glauca Pinus radiata Coleoptera Chile Diversity Neotropic Hualo forests (Nothofagus glauca) endemic from Chile have been impacted by anthropic processes such as substitution by exotic plantations of ensigned pine (Pinus radiata). The diversity of epigeous Coleoptera in Hualo forests, highly sensitive to changes, has been scarcely documented in Chile. It was evaluated the seasonal diversity of epigeous Coleoptera in three habitats (hualo forests, pine plantations, and mixed formations of pine plantations and hualo forests) in the area of Constitucion, central Chile. During the spring and summer were established three random linear transects of 100 m in three mature stands of each habitat, where 10 pitfall traps were installed every 10 m. For each habitat, the composition, abundance, and richness of epigeous beetles were estimated. The diversity of species was calculated per season using the Shannon-Wiener (H'), Pielou (J'), Chao 2, and Jacknife 1 indexes. Besides, rarefaction curves were built to estimate the expected richness. Nineteen Coleoptera native species belonging to 11 families were detected. In spring, the relative abundances of Coleoptera were significantly higher in pine plantations, followed by mixed formations and hualo forests. In summer, although the abundance was reduced, the predominance in the pine plantations remained stable. The relative richness in pine plantations and hualo forests was similar and superior to mixed formations in summer. However, it was inferred from the rarefaction curves, that only the sampling effort in summer was appropriated. The H' index was higher in mixed formations in spring, and in N. glauca forests in summer, coinciding with the highest J'. The results suggest that maintaining pine plantations, favors the conservation of epigeous Coleoptera, acting as reservoirs of biodiversity, possibly due to the greater tree cover and understory, in this particular habitat. Los bosques de hualo (Nothofagus glauca), endémicos de Chile, han sido impactados por procesos antrópicos, como la sustitución por plantaciones exóticas de pino insigne (Pinus radiata). La diversidad de coleópteros epigeos en bosques de hualo, altamente sensibles a los cambios ha sido escasamente documentada. Se evalúo la diversidad estacional de coleópteros epigeos en tres hábitats (bosques de hualo, plantaciones de pino y formaciones mixtas de pino-hualo) en la zona de Constitución, Chile central. Durante la primavera y verano, en tres rodales maduros de cada hábitat, se establecieron al azar tres transectos lineales de 100 m y se instalaron 10 trampas de intercepción cada 10 m. Para cada hábitat se estimó la composición, abundancia y riqueza, y se calculó la diversidad de especies por estación mediante los índices de Shannon-Wiener (H’), de Pielou (J’), Chao 2 y Jacknife 1. Además, se construyeron curvas de rarefacción para obtener la riqueza esperada. Se detectaron 19 especies de coleópteros pertenecientes a 11 familias. En primavera, las abundancias relativas de coleópteros fueron significativamente superiores en las plantaciones de pino, seguidas de las formaciones mixtas y los bosques de hualo. En verano, aunque la abundancia se redujo, la predominancia en las plantaciones de pino permaneció estable. La riqueza relativa en las plantaciones de pino y bosques de hualo fueron superiores en verano. No obstante, se dedujo a través de las curvas de rarefacción, que sólo el esfuerzo de muestreo en verano fue el adecuado. Los índices H’ fueron superiores en las formaciones mixtas en primavera, y en los bosques de N. glauca en verano, coincidiendo con los J’ más elevados. Los resultados sugieren que, mantener plantaciones de pino insigne, favorece la conservación de coleópteros epigeos, actuando como reservorios de biodiversidad, posiblemente por la mayor cobertura arbórea y de sotobosque en este hábitat en particular. 2021-09-06T13:50:04Z 2021-09-06T13:50:04Z 2021-09-06T13:50:04Z 2021 Artículo de revista Revista Colombiana de Entomología 2021, 47 (1): e7522 10.25100/socolen.v47i1.7522 https://repositorio.uchile.cl/handle/2250/181824 es http://creativecommons.org/licenses/by-nc-nd/3.0/cl/ Attribution-NonCommercial-NoDerivs 3.0 Chile Sociedad Colombiana de Entomología, Colombia Revista Colombiana de Entomología |