Inaccessible ledges as refuges for the natural vegetation of the high Andes

QUESTIONS: Have millennia of human land use fundamentally altered the vegetation of a large proportion of the high Andean puna biome, with natural vegetation now restricted to inaccessible areas? Can inaccessible ledges be used as surrogates to infer the potential natural vegetation (PNV) in heavily...

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Veröffentlicht in:	Journal of vegetation science 2014-09, Vol.25 (5), p.1225-1234
Hauptverfasser:	Sylvester, Steven P, Sylvester, Mitsy D.P.V, Kessler, Michael, Woods, Kerry
Format:	Artikel
Sprache:	eng
Schlagworte:	analysis of variance Andes Animal and plant ecology Animal, plant and microbial ecology anthropogenic activities Anthropogenic impact Biological and medical sciences botanical composition burning Carex ecosystems Festuca flora Fundamental and applied biological sciences. Psychology grasslands Grazing Grazing impact habitats Humans Indicator species land use Luzula National conservation areas Peru Plants Polylepis Potential Natural Vegetation (PNV) concept Puna Soil depth Species diversity Tussock grasslands Valeriana Vascular plants Vegetation Woodlands
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