Servant Vildary Simone auteur aut IRD Risacher François auteur aut IRD Roux M. auteur aut IRD text journalArticle eng text/pdf reformatted digital access Diatom assemblages and water chemistry were studied in 13 shallow salt lakes in the southern part of the Bolivian Altiplano. At each locality bottm sediment and water samples were collected simultaneously. Relationships between the composition of the diatom assemblages and variations in water chemistry were collated in order to permit the estimation of ancient water chemistries based on changes in the make up of fossil diatom associations in older sediments. Weighted Averages treated by Partial Least Squares regression (WA and WA-PLS methods) allowed an estimation of optima and the relative tolerances of 61 species to variations in salinity and to the relative quantities of the 15 chemical elements studied, among them boron and lithium. specialized flora diatom Bolivia Quaternary water ionic content water chemistry transfer function ecology BOLIVIE ANDES 076 064 Memoir 2002/01 CG2002_M01 36 2002 https://www.documentation.ird.fr/hor/PAR00007509 [F B010086554] https://www.documentation.ird.fr/hor/PAR00007509 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/2024-01/010086554.pdf IRD - Base Horizon / Pleins textes 2007-04-17 2024-01-24 PAR00007509 fre