Indeed, if alien species are so environmental constrained, the competition to thrive could be almost non-existant, and Terran life could have the winning hand i

Indeed, if alien species are so environmental constrained, the competition to thrive could be almost non-existant, and Terran life could have the winning hand in that case. We should be careful about what we send to Mars. Something like candidas aureous could just wipe out the life on the planet.