This paper discusses participatory research in the Andes and presents a case study in Cotacachi, Ecuador, where sustaina......

This paper discusses participatory research in the Andes and presents a case study in Cotacachi, Ecuador, where sustaina......

Several orogenic cycles of mountain building and subsequent collapse associated with periods of shal-lowing and steepeni......

The nuclear ribosomal ITS region and the chloroplast trnL-trnF (trnLF) intergenic region were sequenced for 45 accession......

A molecular phylogenetic analysis of most of the species of Perezia reveals that, as traditionally defined, the genus is......

白银生产是殖民地美洲最重要的经济活动之一，对整个地区的经济、社会和政治生活都起着重要的主导作用。“白银经济圈”的形成和发展......