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Threats to Biodiversity01:50

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There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
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Protected area networks do not represent unseen biodiversity.

Ángel Delso1,2, Javier Fajardo3, Jesús Muñoz4

  • 1Universidad Internacional Menéndez Pelayo, Madrid, Spain. angeldelso@hotmail.com.

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|June 11, 2021
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Summary
This summary is machine-generated.

Conservation networks must include unseen biodiversity for greater efficiency. Protecting inconspicuous species, often overlooked, enhances the ecological representation of protected areas.

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Area of Science:

  • Ecology
  • Conservation Biology
  • Biodiversity Science

Background:

  • Existing protected area networks often prioritize charismatic species or landscapes.
  • This focus can lead to the neglect of less conspicuous but species-rich groups, impacting overall biodiversity representation.

Purpose of the Study:

  • To test the hypothesis that conservation networks including unseen biodiversity are more efficient.
  • To assess the efficiency of protected areas in representing species-rich, inconspicuous taxa.

Main Methods:

  • Generated 3006 species distribution models for arthropod species.
  • Assessed network efficiency using spatial prioritization for completeness, required expansion, and specificity.

Main Results:

  • Unseen biodiversity is poorly represented in existing protected areas, with ~40% unprotected.
  • Existing networks require 26%-46% expansion to meet conservation targets for unseen biodiversity.
  • Low specificity (as low as 8.8%) indicates inefficient conservation of unseen biodiversity in current networks.

Conclusions:

  • Integrating unseen biodiversity data into systematic conservation planning is crucial.
  • This integration will lead to more efficient and ecologically representative protected area designs.