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Predicting the Effectiveness of Population Replacement Strategy Using Mathematical Modeling
Published on: July 4, 2007
Dinámica, abundancia y distribución de la metapoblación en un micro-ecosistema
1A. Gonzalez, J. H. Lawton, T. M. Blackburn, National Environment Research Council Centre for Population Biology, Silwood Park, Ascot, Berkshire, SL5 7PY, UK. F. S. Gilbert and I. Evans-Freke, School of Biological Sciences, University Park, Nottingh.
Science (New York, N.Y.)
|September 25, 1998
Resumen
La fragmentación del hábitat perjudica la abundancia y distribución de las especies. Sin embargo, los corredores de hábitat promueven la dinámica de metapoblación, permitiendo la inmigración y manteniendo la persistencia de las especies en ecosistemas fragmentados.
Área de la Ciencia:
- Ecología Ecología Ecología.
- Biología de la Conservación Biología de la Conservación.
- Ecología del paisaje Ecología del paisaje.
Sus antecedentes:
- La fragmentación del hábitat es uno de los principales impulsores de la pérdida de biodiversidad.
- Comprender las respuestas de las especies a la fragmentación es crucial para la conservación.
Objetivo del estudio:
- Investigar los efectos de la fragmentación experimental del paisaje en una comunidad animal de múltiples especies.
- Evaluar el papel de los corredores de hábitat en la mitigación de los impactos negativos de la fragmentación.
Principales métodos:
- Fragmentación experimental de los paisajes naturales.
- Monitorear la abundancia y distribución de las especies.
- Analizar las relaciones interespecíficas y el impacto de los corredores de hábitats.
Principales resultados:
- La fragmentación condujo a disminuciones en la abundancia y distribución de las especies, y extinciones.
- La relación positiva entre la abundancia local y la distribución se deterioró después de la fragmentación.
- Los corredores de hábitat facilitaron un "efecto de rescate" de la inmigración, deteniendo los descensos y preservando la relación positiva.
Conclusiones:
- La dinámica de metapoblación y la conectividad del paisaje son vitales para la persistencia de las especies en hábitats fragmentados.
- Los corredores de hábitat son herramientas efectivas para conservar la biodiversidad en paisajes fragmentados.
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