Protection and monitoring of the giant otter (Pteronura brasiliensis) in Cantão State Park, Tocantins, Brazil


  • George Georgiadis Instituto Araguaia de Proteção Ambiental
  • Silvana Campello Instituto Araguaia de Proteção Ambiental
  • Benaya N. Leles Instituto Araguaia de Proteção Ambiental



Abundance Estimation, Population Dinamics


In 2010, the Instituto Araguaia, a local NGO, started a program to protect and monitor giant otters, and to use them as an umbrella and flagship species for the conservation of the Cantão ecosystem. As part of the program, a census was carried out to determine the giant otter population of a group of 16 lakes in the park, and this population was monitored over a 28-month period spanning three breeding seasons, between September 2010 and December 2012.

Author Biography

George Georgiadis, Instituto Araguaia de Proteção Ambiental


Instituto Araguaia


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