Resultados de la búsqueda | Land Portal

Resultados de la búsqueda

Mostrando ítems 1 a 9 de 4.
  1. Library Resource
    Informes e investigaciones
    Enero, 2018
    Australia, Brasil, Canadá, Estados Unidos de América

    Declines in global biodiversity due to land conversion and habitat loss are driving a "Sixth Mass Extinction" and many countries currently fall short of meeting even nominal land protection targets to mitigate this crisis. Here, we quantify the potential contribution of Indigenous lands to biodiversity conservation using case studies of Australia, Brazil and Canada. Indigenous lands in each country are slightly more species rich than existing protected areas and, in Brazil and Canada, support more threatened species than existing protected areas or random sites.

  2. Library Resource

    Volume 7 Issue 4

    Publicación revisada por pares
    Diciembre, 2018
    Estados Unidos de América

    Small protected areas dominate some databases and are common features of landscapes, yet their accumulated contributions to biodiversity conservation are not well known. Small areas may contribute to global biodiversity conservation through matrix habitat improvement, connectivity, and preservation of localized ecosystems, but there is relatively little literature regarding this. We review one database showing that the average size of nearly 200,000 protected areas in the United States is ~2000 ha and the median is ~20 ha, and that small areas are by far the most frequent.

  3. Library Resource

    Volume 7 Issue 2

    Publicación revisada por pares
    Junio, 2018
    Estados Unidos de América

    Wildlands are increasingly lost to human development. Conservation scientists repeatedly call for protecting the remaining wildlands and expanding the land area protected in reserves. Despite these calls, conservation reserves can be eliminated through legislation that demotes their conservation status. For example, legislation introduced to the Congress of the United States recently would demote 29 Wilderness Study Areas (WSAs) from the protections afforded by their existing status.

  4. Library Resource

    Volume 7 Issue 3

    Publicación revisada por pares
    Septiembre, 2018
    Sudáfrica, Australia, Estados Unidos de América, África austral

    There is a growing recognition of the contribution that privately-owned land makes to conservation efforts, and governments are increasingly counting privately protected areas (PPAs) towards their international conservation commitments. The public availability of spatial data on countries’ conservation estates is important for broad-scale conservation planning and monitoring and for evaluating progress towards targets.

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