Complex sentence: Other factors in the move include Florida's drainage of the wetlands and shift toward wide-scale agriculture, which contributed to the depletion of game and other resources by the state's expanding population, which reduced the tribal people's ability to live in traditional ways.
Split into simpler sentences: Other factors in the move include Florida's drainage of the wetlands and shift toward wide-scale agriculture. This contributed to the depletion of game and other resources by the state's expanding population, reducing the tribal people's ability to live in traditional ways.