There are three basic types of freshwater ecosystems: 1  Lentic: slow moving water, including pools, ponds, and lakes. 2  Lotic: faster moving water, for example streams and rivers. 3  Wetlands: areas where the soil is saturated or inundated for at least part of the time.
Pediatricians earn an average hourly wage of $95.10. Pediatricians earn an average salary of $197,800 per year.
Medscape's Pediatrician Compensation Report: 2013 says the average pediatrician salary is $173,000 a year. The Profiles Database Physician Salary Survey reports the salary of pediatrician subspecialties is higher, ranging up to $395,000 a year for starting pediatric orthopedic surgeons.