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Long-term vegetation stability and the concept of potential natural vegetation in the Neotropics

AutorRull, Valentí
Palabras claveClimax vegetation
Environmental constancy
Potential natural vegetation
Vegetation stability
Fecha de publicación2-mar-2015
EditorInternational Association for Vegetation Science
CitaciónJournal of Vegetation Science 26 :603–607 (2015)
ResumenWhen vegetation trends over time are analysed from an appropriate long-term perspective using palaeoecological records, the concept of potential natural vegetation (PNV) is unsupported because of continual vegetation changes driven by natural or anthropic forcings. However, some palaeoecological records show long-lasting (i.e. millennial) vegetation stability at multidecadal to centennial time scales in the absence of natural and human drivers of change, which fits within the definition of PNV. A more detailed palaeoecological analysis of these records shows that they are an exception rather than a rule, and that they cannot be differentiated from other transient ecological states. Therefore, long records of vegetation stability cannot be considered to be valid evidence for PNV. From a palaeoecological perspective, the PNV concept is concluded to be unnecessary, even in cases of multidecadal to centennial vegetation stability in the absence of environmental disturbance.
Descripción5 p., gráf.
Versión del editorhttp://dx.doi.org/ 10.1111/jvs.12278
DOIhttp://dx.doi.org/ 10.1111/jvs.12278
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