Lluvia y banco de semillas en escenarios de restauración ecológica de un bosque seco tropical interandino

Arias Barbosa, Yenni Veronica

Lluvia y banco de semillas en escenarios de restauración ecológica de un bosque seco tropical interandino

dc.contributor.advisor	Avella Muñoz, Edgar Andrés
dc.contributor.author	Arias Barbosa, Yenni Veronica
dc.contributor.orcid	Avella Muñoz, Edgar Andrés [0000-0002-1595-1154]
dc.date.accessioned	2025-05-05T21:50:45Z
dc.date.available	2025-05-05T21:50:45Z
dc.date.created	2025-03-06
dc.description	Ante el grado de amenaza de los bosques secos tropicales del mundo el potencial de regeneración natural se convierte en una herramienta diagnóstica para prever la necesidad de restauración asistida. Analizamos la influencia de gramíneas exóticas en la lluvia y el banco de semillas en pastizales abandonados de un bosque seco tropical (Huila-Colombia). Instalamos 42 trampas de semillas y parcelas de regeneración, en transectos desde la fuente de propágulos (bosque), el borde de avance y a 5, 25, 50 ,75 y 125 metros de distancia. Se colectaron 28 685 semillas (60% época seca) y se registró la germinación de 9 204 plántulas (57% época húmeda). Se encontraron diferencias significativas entre la composición florística de la lluvia y el banco de semillas germinable, tanto en la época seca como en la época húmeda así como una disminución de la abundancia y la riqueza de semillas al aumentar la distancia a la fuente de propágulos, demostrando que la presencia de gramíneas exóticas genera condiciones de micrositio que detienen el proceso de regeneración natural, evidenciando la necesidad de continuar con el proceso de restauración asistido que se adelanta.
dc.description.abstract	In the face of the global tropical dry forests threats, the natural regeneration potential becomes a diagnostic tool to anticipate the need for assisted restoration. We analyzed the influence of exotic grasses on rainfall and seed banks in abandoned grasslands of an inter-Andean tropical dry forest (Huila-Colombia). We installed 42 seed traps and regeneration plots along transects, ranging from the propagule source (forest) to the advancement edge at 5, 25, 50, 75, and 125 meters. A total of 28 685 seeds were collected (60% in the dry season) and 9 204 seedlings germinated (57% in the wet season). Significant differences were found in the floristic composition of seed rain and seed bank, in the dry and wet seasons, as well as a decrease in seed abundance and richness with increasing distance from the propagule source. This demonstrates that the presence of exotic grasses creates conditions that hinder the natural regeneration process, highlighting the high level of human intervention in the area and the need for an assisted restoration process.
dc.description.sponsorship	Fundación Natura Colombia
dc.description.sponsorship	Enel Colombia (Proceso de Restauración Ecológica de bosque seco tropical de la Central Hidroeléctrica El Quimbo)
dc.format.mimetype	pdf
dc.identifier.uri	http://hdl.handle.net/11349/95239
dc.language.iso	spa
dc.publisher	Universidad Distrital Francisco José de Caldas
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dc.rights.acceso	Restringido (Solo Referencia)
dc.rights.accessrights	RestrictedAccess
dc.subject	Restauración del bosque seco
dc.subject	Remoción gramíneas
dc.subject	Trampas de semillas
dc.subject	Restauración no asistida
dc.subject	Potencial de regeneración
dc.subject.keyword	Dry forest restoration
dc.subject.keyword	Grass removal
dc.subject.keyword	Seed traps
dc.subject.keyword	Unassisted restoration
dc.subject.keyword	Regeneration potential
dc.subject.lemb	Maestría en Manejo, Uso y Conservación del Bosque -- Tesis y disertaciones académicas
dc.subject.lemb	Bosques secos -- Investigaciones -- Colombia
dc.subject.lemb	Gramíneas
dc.subject.lemb	Protección de bosques
dc.subject.lemb	Regeneración (Botánica)
dc.title	Lluvia y banco de semillas en escenarios de restauración ecológica de un bosque seco tropical interandino
dc.title.titleenglish	Seed rain and seed bank in ecological restoration scenarios of an inter-andean tropical dry forest
dc.type	masterThesis
dc.type.coar	http://purl.org/coar/resource_type/c_bdcc
dc.type.degree	Investigación-Innovación
dc.type.driver	info:eu-repo/semantics/masterThesis