Until 2002, Sierra Leone lacked a forest management system because of the civil war that caused tens of thousands of deaths. Deforestation rates have increased 7.3% since the end of the civil war. On paper, 55 protected areas covered 4.5% of Sierra Leone as of 2003. The country has 2,090 known species of higher plants, 147 mammals, 626 birds, 67 reptiles, 35 amphibians, and 99 fish species.