Map of the study area at the low Amazon River. It shows the location of the city of Santarém, at the confluence of the rivers Tapajós and Amazonas, and an enlargement of the study area, highlighting the 10 lakes selected for the survey.

 
 
  Part of: Ferreira GS, Almeida dos Santos DA, Lopes EV (2019) Richness, abundance and microhabitat use by Ardeidae (Aves: Pelecaniformes) during one seasonal cycle in the floodplain lakesof the lower Amazon River. Zoologia 36: 1-10. https://doi.org/10.3897/zoologia.36.e30475