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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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What is Conservation Biology?01:57

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Conservation biology is a scientific field that focuses on the preservation of biodiversity in order to protect ecosystems while meeting the needs of the human population. Humans require properly functioning ecosystems to maintain our supply of natural resources, including food, medicines, and building materials.
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What is Biodiversity?01:19

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Biodiversity describes the variety of living things at multiple organizational levels: genetic, species and ecosystem diversity. Species diversity includes all branches of the evolutionary tree from single-celled prokaryotic organisms, bacteria, and archaea, to the eukaryotic kingdoms: plants; animals; fungi; and protists. To date, there have been about 1.75 million species identified, and new species are discovered every week.
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Biodiversity and Human Values01:24

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Habitat fragmentation describes the division of a more extensive, continuous habitat into smaller, discontinuous areas. Human activities such as land conversion, as well as slower geological processes leading to changes in the physical environment, are the two leading causes of habitat fragmentation. The fragmentation process typically follows the same steps: perforation, dissection, fragmentation, shrinkage, and attrition.
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Small population sizes put a species at extreme risk of extinction due to a lack of variation, and a consequent decrease in adaptability. This weakens the chances of survival under pressures such as climate change, competition from other species, or new diseases. Large populations are more likely to survive pressures such as these, as such populations are more likely to harbor individuals that have genetic variants that are adaptive under new stresses. Small populations are much less...
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Updated: May 28, 2025

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Es hora de corregir la pérdida de biodiversidad

Andrew Balmford1,2, Thomas S Ball1,2, Ben Balmford3

  • 1Department of Zoology, University of Cambridge, Cambridge, UK.

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|February 13, 2025
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Los esfuerzos de conservación de la naturaleza pueden desplazar inadvertidamente los problemas ambientales a nuevas ubicaciones. Este riesgo de "desplazamiento de la conservación" requiere una cuidadosa consideración para garantizar verdaderos beneficios ecológicos globales.

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Área de la Ciencia:

  • Ciencias de la conservación
  • Gestión del medio ambiente
  • Ecología

Sus antecedentes:

  • Los éxitos de la conservación local son cada vez más reconocidos.
  • Las potenciales externalidades negativas de la conservación, como el desplazamiento del problema, son una preocupación creciente.
  • Ignorar estos problemas desplazados socava los objetivos de conservación global.

Objetivo del estudio:

  • Para resaltar el riesgo significativo de desplazamiento de la conservación.
  • Hacer hincapié en la necesidad de abordar los problemas derivados de las acciones locales de conservación.
  • Abogar por un enfoque más holístico de la planificación de la conservación.

Principales métodos:

  • Este estudio es principalmente una revisión conceptual y una síntesis de la literatura existente.
  • Se analizan ejemplos de casos que ilustran el desplazamiento inducido por la conservación.
  • Se discuten los marcos teóricos para comprender la externalidad en la conservación.

Principales resultados:

  • Las iniciativas de conservación exitosas a nivel local pueden conducir a la reubicación de las presiones ambientales.
  • El hecho de no tener en cuenta el desplazamiento tiene un impacto negativo neto en los resultados generales de conservación.
  • El desplazamiento de la conservación representa un punto ciego crítico en la política ambiental actual.

Conclusiones:

  • Las estrategias de conservación deben incorporar explícitamente medidas para prevenir o mitigar el desplazamiento.
  • Una perspectiva global es esencial para evaluar el verdadero éxito de las intervenciones de conservación.
  • Abordar el desplazamiento de la conservación es crucial para lograr una protección sostenible de la biodiversidad.