Structure and floristic composition of the vegetation undergoing ecological restoration in the Eastern Hills of Bogotá (Colombia)

Structure and floristic composition of the vegetation undergoing ecological restoration in the Eastern Hills of Bogotá (Colombia)

The structure, richness and floristic composition of the vegetation at a site in the Eastern Hills of Bogotá were analyzed in order to assess the efficacy of ecological restoration strategies applied in the area, and identify ways to optimize restoration efforts. Land cover types were determined and vegetation was sampled using 50 x 2 m plots in which woody individuals ≥ 0.30 m in height were measured. A total of 7604 individuals belonging to 106 species and 46 families were found. The exotic forest plantation cover was the largest in the area. Dense shrublands had the highest species richness, followed by forest plantations, abandoned pastures and open shrublands. Native species accounted for 51% of all individuals inventoried. The herbaceous and shrub strata included 85% of all individuals, whereas 92% had a DBH ≤ 12 cm. The species with the highest importance values were Acacia decurrens, Acacia melanoxylon and Eucalyptus globulus in forestry plantations, Fuchsia boliviana, Varronia cylindrostachya and Ulex europaeus in dense shrublands, Prunus serotina, Miconia squamulosa and Acacia decurrens in open shrublands and Eucalyptus globulus, Baccharis latifolia and Sambucus nigra in abandoned pastures. The vegetation is in the initial to intermediate stages of secondary forest succession. Nevertheless, the persistence of exotic and invasive species highlights the need for continued management in the area. Exotic tree plantations have facilitated the regeneration of the vegetation, although soil analyses are recommended to improve efficiency in the selection of native speciesfor introduction. Varronia cylindrostachya, Miconia squamulosa, Piper bogotensis and Baccharis latifolia are key re-colonizers in succession.

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Main Author: Rojas-B., Sandra Liliana
Format: Digital revista
Language:spa
Published: Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias - Instituto de Ciencias Naturales 2017
Online Access:https://revistas.unal.edu.co/index.php/cal/article/view/60084
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record_format ojs
institution UNAL
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country Colombia
countrycode CO
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databasecode rev-cal
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libraryname Sistema Nacional de Bibliotecas de la UNAL
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author Rojas-B., Sandra Liliana
spellingShingle Rojas-B., Sandra Liliana
Structure and floristic composition of the vegetation undergoing ecological restoration in the Eastern Hills of Bogotá (Colombia)
author_facet Rojas-B., Sandra Liliana
author_sort Rojas-B., Sandra Liliana
title Structure and floristic composition of the vegetation undergoing ecological restoration in the Eastern Hills of Bogotá (Colombia)
title_short Structure and floristic composition of the vegetation undergoing ecological restoration in the Eastern Hills of Bogotá (Colombia)
title_full Structure and floristic composition of the vegetation undergoing ecological restoration in the Eastern Hills of Bogotá (Colombia)
title_fullStr Structure and floristic composition of the vegetation undergoing ecological restoration in the Eastern Hills of Bogotá (Colombia)
title_full_unstemmed Structure and floristic composition of the vegetation undergoing ecological restoration in the Eastern Hills of Bogotá (Colombia)
title_sort structure and floristic composition of the vegetation undergoing ecological restoration in the eastern hills of bogotá (colombia)
description The structure, richness and floristic composition of the vegetation at a site in the Eastern Hills of Bogotá were analyzed in order to assess the efficacy of ecological restoration strategies applied in the area, and identify ways to optimize restoration efforts. Land cover types were determined and vegetation was sampled using 50 x 2 m plots in which woody individuals ≥ 0.30 m in height were measured. A total of 7604 individuals belonging to 106 species and 46 families were found. The exotic forest plantation cover was the largest in the area. Dense shrublands had the highest species richness, followed by forest plantations, abandoned pastures and open shrublands. Native species accounted for 51% of all individuals inventoried. The herbaceous and shrub strata included 85% of all individuals, whereas 92% had a DBH ≤ 12 cm. The species with the highest importance values were Acacia decurrens, Acacia melanoxylon and Eucalyptus globulus in forestry plantations, Fuchsia boliviana, Varronia cylindrostachya and Ulex europaeus in dense shrublands, Prunus serotina, Miconia squamulosa and Acacia decurrens in open shrublands and Eucalyptus globulus, Baccharis latifolia and Sambucus nigra in abandoned pastures. The vegetation is in the initial to intermediate stages of secondary forest succession. Nevertheless, the persistence of exotic and invasive species highlights the need for continued management in the area. Exotic tree plantations have facilitated the regeneration of the vegetation, although soil analyses are recommended to improve efficiency in the selection of native speciesfor introduction. Varronia cylindrostachya, Miconia squamulosa, Piper bogotensis and Baccharis latifolia are key re-colonizers in succession.
publisher Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias - Instituto de Ciencias Naturales
publishDate 2017
url https://revistas.unal.edu.co/index.php/cal/article/view/60084
work_keys_str_mv AT rojasbsandraliliana structureandfloristiccompositionofthevegetationundergoingecologicalrestorationintheeasternhillsofbogotacolombia
AT rojasbsandraliliana estructuraycomposicionfloristicadelavegetacionenprocesoderestauracionenloscerrosorientalesdebogotacolombia
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spelling oai:www.revistas.unal.edu.co:article-600842018-07-26T15:46:57Z Structure and floristic composition of the vegetation undergoing ecological restoration in the Eastern Hills of Bogotá (Colombia) Estructura y composición florística de la vegetación en proceso de restauración en los Cerros Orientales de Bogotá (Colombia) Rojas-B., Sandra Liliana Invasive species recolonization vegetation regeneration Andes, Andean forest Eastern Cordillera estructura horizontal estructura vertical Andes bosque andino Cordillera Oriental The structure, richness and floristic composition of the vegetation at a site in the Eastern Hills of Bogotá were analyzed in order to assess the efficacy of ecological restoration strategies applied in the area, and identify ways to optimize restoration efforts. Land cover types were determined and vegetation was sampled using 50 x 2 m plots in which woody individuals ≥ 0.30 m in height were measured. A total of 7604 individuals belonging to 106 species and 46 families were found. The exotic forest plantation cover was the largest in the area. Dense shrublands had the highest species richness, followed by forest plantations, abandoned pastures and open shrublands. Native species accounted for 51% of all individuals inventoried. The herbaceous and shrub strata included 85% of all individuals, whereas 92% had a DBH ≤ 12 cm. The species with the highest importance values were Acacia decurrens, Acacia melanoxylon and Eucalyptus globulus in forestry plantations, Fuchsia boliviana, Varronia cylindrostachya and Ulex europaeus in dense shrublands, Prunus serotina, Miconia squamulosa and Acacia decurrens in open shrublands and Eucalyptus globulus, Baccharis latifolia and Sambucus nigra in abandoned pastures. The vegetation is in the initial to intermediate stages of secondary forest succession. Nevertheless, the persistence of exotic and invasive species highlights the need for continued management in the area. Exotic tree plantations have facilitated the regeneration of the vegetation, although soil analyses are recommended to improve efficiency in the selection of native speciesfor introduction. Varronia cylindrostachya, Miconia squamulosa, Piper bogotensis and Baccharis latifolia are key re-colonizers in succession. Se analizó la estructura, la riqueza y la composición florística de un sector de los Cerros Orientales de Bogotá para evaluar los alcances de la restauración ecológica desarrollada en la zona e identificar necesidades para optimizar los esfuerzos de restauración. Se determinaron los tipos de coberturas y se usaron transectos de 50 x 2 m para censar los individuos leñosos con altura ≥ 0,30 m. Se registraron 7604 individuos de 106 especies y 46 familias. La cobertura más extensa fue plantación forestal exótica. En matorrales densos se encontró la mayor riqueza de especies, seguida por plantaciones forestales, pastizales y matorrales abiertos. El 51% de los individuos pertenece a especies nativas. El 85% de los individuos se encuentra en los estratos herbáceo y arbustivo, y el 92% presenta un DAP ≤ 12 cm. Las especies con mayor valor de importancia fueron Acacia decurrens, Acacia melanoxylon y Eucalyptus globulus en las coberturas de plantación forestal, Fuchsia boliviana, Varronia cylindrostachya y Ulex europaeus en matorrales densos, Prunus serotina, Miconia squamulosa y Acacia decurrens en matorrales abiertos, Eucalyptus globulus, Baccharis latifolia y Sambucus nigra en pastizales misceláneos. La vegetación se encuentra en etapas iniciales a intermedias de la sucesión de bosques secundarios. Las especies exóticas e invasoras son persistentes y requieren manejo continuado. Las plantaciones forestales exóticas han facilitado la regeneración de la vegetación, aunque deben realizarse estudios de suelos para seleccionar más eficientemente las especies nativas a introducir. Varronia cylindrostachya, Miconia squamulosa, Piper bogotensis y Baccharis latifolia son recolonizadoras claves en la sucesión. Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias - Instituto de Ciencias Naturales 2017-01-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf application/xml https://revistas.unal.edu.co/index.php/cal/article/view/60084 10.15446/caldasia.v39n1.60084 Caldasia; Vol. 39 No. 1 (2017); 124-139 Caldasia; Vol. 39 Núm. 1 (2017); 124-139 2357-3759 0366-5232 spa https://revistas.unal.edu.co/index.php/cal/article/view/60084/60440 https://revistas.unal.edu.co/index.php/cal/article/view/60084/63594 Derechos de autor 2017 Caldasia https://creativecommons.org/licenses/by/4.0

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