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La extinción y la pérdida de la historia evolutiva
1Department of Zoology, Oxford University, South Parks Road, Oxford, OX1 3PS, UK. sean.nee@zoo.ox.ac.uk
Science (New York, N.Y.)
|October 24, 1997
Resumen
Incluso cuando el 95% de las especies se pierden, alrededor del 80% de la historia evolutiva puede sobrevivir. Los algoritmos de conservación que tienen como objetivo preservar la historia evolutiva no son significativamente mejores que la selección aleatoria.
Área de la Ciencia:
- Biología evolutiva Biología evolutiva.
- La ciencia de la conservación es la ciencia de la conservación.
- Los estudios de biodiversidad incluyen estudios de biodiversidad.
Sus antecedentes:
- Los eventos de extinción antropogénica están podando el árbol de la vida.
- Comprender la pérdida de la historia evolutiva es crucial para la conservación.
- La asignación de prioridades de conservación requiere el conocimiento de las contribuciones de las especies a la historia evolutiva.
Objetivo del estudio:
- Para cuantificar la fracción de la historia evolutiva que sobrevive a la pérdida de especies.
- Evaluar la efectividad de los algoritmos de conservación en la preservación de la historia evolutiva.
Principales métodos:
- Análisis filogenético para modelar el "árbol de la vida".
- Simulaciones para evaluar el impacto de la pérdida de especies en la historia evolutiva.
- Comparación de algoritmos de conservación dirigidos contra la selección aleatoria.
Principales resultados:
- Aproximadamente el 80% de la historia evolutiva puede persistir incluso con el 95% de la pérdida de especies.
- Los algoritmos diseñados para maximizar la historia evolutiva preservada muestran una mejora mínima sobre la selección aleatoria.
Conclusiones:
- La historia evolutiva significativa puede permanecer incluso después de la pérdida severa de especies.
- Los algoritmos actuales de priorización de la conservación pueden no ser óptimos para preservar la historia evolutiva.
- Los hallazgos ofrecen ideas pragmáticas para la biología de la conservación en medio de limitaciones prácticas.
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