Browsing by Autor "Alexandra Areiza"

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    Connectivity of Protected Areas: Effect of Human Pressure and Subnational Contributions in the Ecoregions of Tropical Andean Countries
    (Multidisciplinary Digital Publishing Institute, 2020) Luis Santiago Castillo; Camilo Andrés Correa Ayram; Clara Lucía Matallana Tobón; Germán Corzo; Alexandra Areiza; Roy González‐M.; Felipe Victoriano Serrano; Luis Chalán Briceño; Felipe Sánchez Puertas; Alexander Goodman More
    Conservationists recognize the value of protected area (PA) systems, with adequate coverage, ecological representation, connection, and management to deliver conservation benefits. Yet, governments primarily focus on coverage, disregarding quantification of the other criteria. While recent studies have assessed global representation and connectivity, they present limitations due to: (1) limited accuracy of the World Database of Protected Areas used, as governments may report areas that do not meet the IUCN or CBD PA definitions or omit subnational PAs, and (2) failure to include human impacts on the landscape in connectivity assessments. We constructed a validated PA database for Tropical Andean Countries (TAC; Bolivia, Colombia, Ecuador, Perú, and Venezuela) and used the existing Protected-Connected-Land (ProtConn) indicator—incorporating the Global Human Footprint as a spatial proxy for human pressure—to evaluate TAC ecoregions’ representation and connectivity. We found that just 27% of ecoregions in the TAC are both protected and connected on more than 17% of their lands. As we included human pressure, we conclude that previous global ProtConn studies overestimate PA connectivity. Subnational PAs are promising for strengthening the representation of PA systems. If nations seek to meet Aichi target 11, or an upcoming post-2020 30% target, further efforts are needed to implement and report subnational conservation areas and appropriately evaluate PA systems.
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    Visión integral para la gestión de las áreas protegidas urbanas en Colombia
    (University of Cundinamarca, 2018) Juliana Montoya; Diana Ruiz; Germán I. Andrade; Clara Matallana; Jhonatan Julián Díaz Timoté; Juan Azcárate; Alexandra Areiza
    En un mundo en urbanización, las apuestas por implementar estrategias para la sostenibilidad de las ciudades se hacen cada vez más necesarias, en especial, aquellas que tienen que ver con la conservación de la biodiversidad y su enfoque socioecológico. Entre los elementos que componen lo verde dentro y cerca de las ciudades (cobertura vegetal), existen espacios con altos niveles de biodiversidad o con valores naturales relevantes, que les confieren un gran potencial para ser áreas protegidas. Estas áreas aportan funciones ecológicas y sociales únicas dentro del paisaje urbano y regional, por lo que requieren de una gestión diferenciada desde lo ecológico y social, considerando explícitamente el contexto en el que se encuentran. Este documento pretende ser una reflexión para
\nla construcción de una visión integral sobre la identidad y gestión de las áreas protegidas urbanas (APU) en Colombia, con el objetivo de lograr su incorporación en la sostenibilidad del territorio y la conservación de la biodiversidad urbana.