Table 2.

Study sites in the Lower Tocantins River region informing geographic position and altitude of each site

Study sites	Latitude	Longitude	Altitude (m)
Baião village	−2.792377°	−49.674500°	10
Joana Peres village	−3.016875°	−49.748470°	12
Ituquara village	−3.031125°	−49.646270°	13
Vila Nova village	−3.450295°	−49.608875°	13
Moru village	−3.558638°	−49.612157°	14
Tucuruí city	−3.756088°	−49.664309°	16
Tucuruí dam	−3.832021°	−49.643278°	70
Porto do Onze	−3.848169°	−49.680821°	70
Porto Novo	−4.414191°	−49.387704°	73
Santa Rosa village	−4.522811°	−49.408602°	73