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Con los pies en el suelo: incluyendo la estructura espacial de los datos en los análisis multivariantes

Ecosistemas: Revista científica y técnica de ecología y medio ambiente, ISSN 1697-2473, Nº. 3, 2006 01/2006;
Source: OAI

ABSTRACT Similarly to individual species, plant communities also show clear spatial patterns. However, plant communities are not discrete entities but an assembly of elements; consequently, different methods are needed to describe the environmental factors that determine spatial patterns in plant communities. In this paper we show two types of techniques in order to deal with multivariate data analysis: canonical analysis and Mantel analysis. Al igual que las especies individuales, las comunidades muestran patrones espaciales muy nítidos. Sin embargo, a diferencia de las primeras, las comunidades, no son entidades discretas, sino un conjunto de elementos. Por ello, los métodos para describir los patrones y los factores ambientales que determinan estas estructuras espaciales difieren de los empleados para las especies individuales, pues nos enfrentamos a datos multivariantes. Este trabajo presenta dos grupos de técnicas (los análisis canónicos y el test de Mantel) como estrategias para tratar este tipo de datos.

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