"I summoned for consultations our ambassador in Brazil, with whom I will meet to discuss the political situation in that country," Long said on Wednesday, as quoted by El Comercio.
Ecuador is the third Latin American country, after El Salvador and Venezuela, to recall an ambassador from Brazil following Rousseff’s suspension.
Brazil's Senate voted 55-22 earlier this month to start impeachment proceedings against Rousseff after she was accused of concealing the country’s budget deficit ahead of the 2014 re-election. Rousseff called the impeachment process "a coup."
Rousseff has been facing a wave of public discontent for over a year amid the country’s struggling economy and a major corruption scandal in the state-controlled Petrobras oil company.
The 68-year-old has been suspended from office for 180 days, pending trial. Vice President Michel Temer is assuming presidency during that period.
Temer is reportedly being accused of crimes similar to those cited as the reason behind Rousseff's impeachment process. On Tuesday, reports emerged that the Supreme Court of Brazil will consider a request on impeachment of the acting president.