Complex sentence: The geographic range of the pirate perch is very limited in America and the creation of dams and the increasing effects of urbanization are restricting the overall habitat size for the pirate perch which could eventually lead to this species becoming extirpated in some areas of America.
Split into simpler sentences: The geographic range of the pirate perch is very limited in America. The creation of dams and the increasing effects of urbanization are restricting the overall habitat size for the pirate perch and could eventually lead to this species becoming extirpated in some areas of America.