Parana River Delta Argentina 8 Bos taurus 4 Landscape evolution 4 Luziola peruviana 4 Parana Delta 4 Pedogenesis 4 Poaceae 4 South America 4 Western Hemisphere 4 World 4 cattle 4 landscape evolution 4 pedogenesis 4 soil drainage 4 spatial distribution 4 Acmella decumbens 2 Agrnetina 2 Arachnotheca 2 Arachnotheca albicans 2 Aspergillus 2 Aspergillus japonicus 2 Bos 2 Chaetothyriales 2 Cynodon dactylon 2 Cyperaceae 2 Dichondra 2 Dichondra microcalyx 2 Diet composition 2 Eladia saccula 2