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Comentario a "La productividad es un pobre predictor de la riqueza de las especies vegetales"
Xubin Pan1, Fengqiao Liu, Mi Zhang
1Department of Environmental Engineering, Texas A&M University-Kingsville, Kingsville, TX 78363, USA. xubin.hu.pan@gmail.com
Science (New York, N.Y.)
|March 24, 2012
Resumen
La productividad predice mal la riqueza de las especies vegetales a escalas finas. Sin embargo, el análisis de Adler et al. tenía sesgos, lo que limita sus conclusiones sobre los datos de las comunidades vegetales.
Área de la Ciencia:
- Ecología Ecología Ecología.
- Botánica La botánica es la botánica.
- Ciencias Ambientales Ciencias del Medio Ambiente.
Sus antecedentes:
- Investigaciones anteriores sugirieron que la productividad es un mal predictor de la riqueza de las especies vegetales a escalas finas.
- Adler y otros. Analizó datos de 48 comunidades vegetales dominadas por plantas herbáceas.
Objetivo del estudio:
- Para reevaluar la conclusión de Adler y cols. con respecto a la relación entre la productividad y la riqueza de especies vegetales.
- Para identificar las limitaciones metodológicas en el estudio original.
Principales métodos:
- Análisis de datos de muestreo estandarizado de 48 comunidades vegetales dominadas por plantas herbáceas.
- Crítica de la metodología utilizada por Adler et al., centrándose en posibles sesgos.
Principales resultados:
- El método del estudio original estaba sesgado hacia las comunidades dominadas por el número de sitios.
- Se proporcionaron datos insuficientes para los análisis regionales e in situ.
Conclusiones:
- La conclusión de que la productividad es un mal predictor de la riqueza de las especies vegetales puede estar limitada por sesgos metodológicos.
- Se necesita más investigación con datos sólidos para análisis regionales y dentro del sitio precisos.
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