Fast movement of alien species in the central region of Chile. Reconstruction through history and palynological evidence.

Fast movement of alien species in the central region of Chile. Reconstruction through history and palynological evidence.To understand the dynamics of plant communities that currently comprise central Chile, a pollen-sedimentary analysis was performed that differentiated between native and exotictax...

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Autores principales: Vargas, P., Torrejón, F., Pauchard, A., Urrutia, R.
Formato: Artículo revista
Lenguaje:Español
Publicado: Sociedad Argentina de Botánica 2017
Materias:
introducción
plantas
polen
comparación
data histórica.
introduction
plants
pollen
comparison
historical data.
Acceso en línea:https://revistas.unc.edu.ar/index.php/BSAB/article/view/16914
Aporte de:
Boletín de la Sociedad Argentina de Botánica de Universidad Nacional de Córdoba
id I10-R325-article-16914
record_format ojs
spelling I10-R325-article-169142019-12-14T13:47:55Z Fast movement of alien species in the central region of Chile. Reconstruction through history and palynological evidence. Rápido movimiento de plantas exóticas en la zona central de Chile. Una reconstrucción a través de evidencia histórica y palinológica. Vargas, P. Torrejón, F. Pauchard, A. Urrutia, R. introducción plantas polen comparación data histórica. introduction plants pollen comparison historical data. Fast movement of alien species in the central region of Chile. Reconstruction through history and palynological evidence.To understand the dynamics of plant communities that currently comprise central Chile, a pollen-sedimentary analysis was performed that differentiated between native and exotictaxa. This was complemented with a historical reconstruction of the past 500 years of the Itata valley, Bio-Bio Region. With this, three historical periods were established: Pre-hispanic Situation, the valley is described as a plain provided with xeromorphic vegetation, poor in species; Agricultural and LivestockBoom period, the first exotic plants emerged: Poaceae> 40um, Rumex, Rutaceae, Prunus, shamrocks and thistles, which acclimatized and expanded rapidly, boosted further by war conflicts and socio-cultural movements of the XVII-XIX centuries; Forestry Period, the following exotic species were  registered: Alnus, Acacia, Eucalyptus, Cupressus and Pinus, introduced with the objective of halting soil erosion and meet the growing demand in wood. In only 250 years (1600-1850), the number of exotic species may have equaled native species. However, these may have adapted to less favorable soils, not greatlyaffecting the native trees. Stands out the pine, its introduction in the region may have occurred in ~ 1850, taking only 50 years to dominate the natural landscape of the basin Para comprender la dinámica de las comunidades vegetales que conforman actualmente a la zona central de Chile, se realizó un análisis polínico-sedimentario que diferenció entre taxones nativos y exóticos. Este fue complementado con una reconstrucción histórica de los últimos 500 añosdel valle Itata, Región del Bio-Bio. Con lo anterior, se establecieron tres periodos históricos: Situación Prehispánica, se describe al valle como un llano provisto de vegetación xeromórfica, pobre en especies; Periodo de Auge Agrícola-ganadero, caracterizado por la aparición de las primeras plantas exóticas: Poaceae >40um, Rumex, Rutaceae, Prunus, tréboles y cardos, las cuales se aclimataron y expandieron rápidamente, favorecidas aún más, por los conflictos bélicos y movimientos socioculturales de los siglos XVII-XIX; Periodo Forestal, dónde se registraron especies de rápido crecimiento como: Alnus, Acacia, Eucalyptus, Cupressus y Pinus, introducidas con los objetivos de detener la erosión de los suelos y de satisfacer la creciente demanda en madera. En sólo 250 años (1600-1850) la cantidad de especies exóticas habría igualado a las especies nativas. No obstante, estas se habrían adaptado a suelos menosfavorecidos, no afectando mayormente a los árboles nativos. Entre estas plantas destaca el pino, su introducción en la región habría ocurrido en ~1850, tardando sólo 50 años en dominar el paisaje natural de la cuenca. Sociedad Argentina de Botánica 2017-05-11 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo original application/pdf https://revistas.unc.edu.ar/index.php/BSAB/article/view/16914 10.31055/1851.2372.v52.n1.16914 Boletín de la Sociedad Argentina de Botánica (Journal of the Argentine Botanical Society; Vol. 52 No. 1 (2017): March; 121-140 Boletín de la Sociedad Argentina de Botánica; Vol. 52 Núm. 1 (2017): Marzo; 121-140 Boletín de la Sociedad Argentina de Botánica; v. 52 n. 1 (2017): Marzo; 121-140 1851-2372 0373-580X 10.31055/1851.2372.v52.n1 spa https://revistas.unc.edu.ar/index.php/BSAB/article/view/16914/16587 Derechos de autor 2017 Boletín de la Sociedad Argentina de Botánica
institution Universidad Nacional de Córdoba
institution_str I-10
repository_str R-325
container_title_str Boletín de la Sociedad Argentina de Botánica
language Español
format Artículo revista
topic introducción
plantas
polen
comparación
data histórica.
introduction
plants
pollen
comparison
historical data.
spellingShingle introducción
plantas
polen
comparación
data histórica.
introduction
plants
pollen
comparison
historical data.
Vargas, P.
Torrejón, F.
Pauchard, A.
Urrutia, R.
Fast movement of alien species in the central region of Chile. Reconstruction through history and palynological evidence.
topic_facet introducción
plantas
polen
comparación
data histórica.
introduction
plants
pollen
comparison
historical data.
author Vargas, P.
Torrejón, F.
Pauchard, A.
Urrutia, R.
author_facet Vargas, P.
Torrejón, F.
Pauchard, A.
Urrutia, R.
author_sort Vargas, P.
title Fast movement of alien species in the central region of Chile. Reconstruction through history and palynological evidence.
title_short Fast movement of alien species in the central region of Chile. Reconstruction through history and palynological evidence.
title_full Fast movement of alien species in the central region of Chile. Reconstruction through history and palynological evidence.
title_fullStr Fast movement of alien species in the central region of Chile. Reconstruction through history and palynological evidence.
title_full_unstemmed Fast movement of alien species in the central region of Chile. Reconstruction through history and palynological evidence.
title_sort fast movement of alien species in the central region of chile. reconstruction through history and palynological evidence.
description Fast movement of alien species in the central region of Chile. Reconstruction through history and palynological evidence.To understand the dynamics of plant communities that currently comprise central Chile, a pollen-sedimentary analysis was performed that differentiated between native and exotictaxa. This was complemented with a historical reconstruction of the past 500 years of the Itata valley, Bio-Bio Region. With this, three historical periods were established: Pre-hispanic Situation, the valley is described as a plain provided with xeromorphic vegetation, poor in species; Agricultural and LivestockBoom period, the first exotic plants emerged: Poaceae> 40um, Rumex, Rutaceae, Prunus, shamrocks and thistles, which acclimatized and expanded rapidly, boosted further by war conflicts and socio-cultural movements of the XVII-XIX centuries; Forestry Period, the following exotic species were  registered: Alnus, Acacia, Eucalyptus, Cupressus and Pinus, introduced with the objective of halting soil erosion and meet the growing demand in wood. In only 250 years (1600-1850), the number of exotic species may have equaled native species. However, these may have adapted to less favorable soils, not greatlyaffecting the native trees. Stands out the pine, its introduction in the region may have occurred in ~ 1850, taking only 50 years to dominate the natural landscape of the basin
publisher Sociedad Argentina de Botánica
publishDate 2017
url https://revistas.unc.edu.ar/index.php/BSAB/article/view/16914
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first_indexed 2024-09-03T22:48:47Z
last_indexed 2024-09-03T22:48:47Z
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