Table 1 Location of study sites from south to north and sampling dates

Alto Chipana — Rio Loa

4

S21°21′18″ W70°00′31″

936–955

21 October 2016

20 March 2017

Alto Chipana

5

S21°18′08″ W70°01′39″

992–1014

21 October 2016

20 March2017

Salar Grande

6

S21°10′47″ W70°00′30″

902–951

22 October 2016

Cerro Pajonal

7

S20°43′33″ W69°58′13″

967–970

23 October 2016

18 March 2017

Salitrera San Lorenzo 2 (Oyarbide)

8

S20°31′45″ W70°02′08″

1077–1087

18 March 2017

Cerro Guanaco

11

S20°20′07″ W70°01′56″

1043–1055

24 October 2016

17 March 2017

Cerro Carpas

12

S20°17′07″ W70°00′49″

998–1028

24 October 2016