Análisis del estado de la invasión del Castor en la península de Brunswick, comuna de Punta Arenas. Importancia del Servicio de Biodiversidad y Áreas Protegidas para el Control de la Especie.
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Date
2026
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Publisher
Universidad de Concepción
Abstract
En esta memoria se analiza el estado de la invasión del Castor canadensis en la Península de Brunswick, comuna de Punta Arenas, basado en datos geográficos. Además, se evalúa el rol de la legislación actual al igual que el nuevo Servicio de Biodiversidad y Áreas Protegidas para abordar el control de esta especie. El objetivo principal es caracterizar de forma espacial y temporal la invasión del Castor en la Península y analizar los instrumentos normativos de gestión disponibles.
La metodología se basó en un análisis de registros de ocurrencia georreferenciados obtenidos desde la plataforma Global Biodiversity Information Facility, procesados mediante los software R Studio y QGIS, junto con cruces espaciales de información de pisos vegetacionales, uso de suelo, cobertura forestal y subcuencas. Además, se realizó un análisis de instrumentos pertinentes actuales y se entrevistó a actores clave para determinar estrategias a considerar prioritarias para el control.
Los resultados muestran una presencia persistente en Península, concentrada en los alrededores de la Reserva Nacional Laguna Parrillar y asociada a ecosistemas boscosos del género Nothofagus presentes en Magallanes. Asimismo, a través de análisis y entrevistas, se identifican brechas en los instrumentos actuales, destacando el potencial de la nueva ley para fortalecer el manejo de la especie.
This report analyses the status of the invasion of Castor canadensis on the Brunswick Peninsula, commune of Punta Arenas. The study evaluates the role of the current legislation as well as the new law on the creation of the Biodiversity and Protected Areas Service to address the control of this species. The main objective is to characterize the spatial and temporal patterns of the Beaver invasion on the peninsula and to analyse the regulatory and management instruments available for its control. The methodology was based on the analysis of georeferenced occurrence records obtained from the Global Biodiversity Information Facility platform and processed using RStudio and QGIS software, together with spatial overlays of elevation-based vegetation zones, land use, forest cover, and sub-basins. In addition, an analysis of the relevant current regulatory instruments was conducted, and key actors were interviewed to identify priority strategies for species control. The results show a persistent presence of the species on the peninsula, concentrated around the Laguna Parrillar National Reserve, and associated with forest ecosystems dominated by Nothofagus species. Furthermore, gaps in the existing management instruments were identified through the analysis and the interviews, highlighting the potential of the new law to strengthen species management.
This report analyses the status of the invasion of Castor canadensis on the Brunswick Peninsula, commune of Punta Arenas. The study evaluates the role of the current legislation as well as the new law on the creation of the Biodiversity and Protected Areas Service to address the control of this species. The main objective is to characterize the spatial and temporal patterns of the Beaver invasion on the peninsula and to analyse the regulatory and management instruments available for its control. The methodology was based on the analysis of georeferenced occurrence records obtained from the Global Biodiversity Information Facility platform and processed using RStudio and QGIS software, together with spatial overlays of elevation-based vegetation zones, land use, forest cover, and sub-basins. In addition, an analysis of the relevant current regulatory instruments was conducted, and key actors were interviewed to identify priority strategies for species control. The results show a persistent presence of the species on the peninsula, concentrated around the Laguna Parrillar National Reserve, and associated with forest ecosystems dominated by Nothofagus species. Furthermore, gaps in the existing management instruments were identified through the analysis and the interviews, highlighting the potential of the new law to strengthen species management.
Description
Tesis presentada para optar al título de Geógrafo/a.
Keywords
Castores, Áreas protegidas, Organismos introducidos, Legislación