Wait a minute. Are you saying that the animals in the Amazonian rain forest produce more CO2 than the plants within it consume? Do you have any data that shows this?
This is cited in the documentary "One Strange Rock". That is the only data I have. I am trusting that the documentary is accurate, I have not fact checked the documentary.
"Forest plants produce lots of oxygen, and forest microbes consume a lot of oxygen. As a result, net production of oxygen by forests – and indeed, all land plants – is very close to zero."