http://work.chron.com/ecologist-salary-2300.html

http://t.answers.com/answers/#!/entry/8b95747dc5ab59d3badb3ee99f2c79fd?origin=http%3A%2F%2Fwiki.answers.com%2FQ%2FHow_many_years_in_college_do_you_need_to_become_an_ecologist%23page1&oswts=1393506925369

http://www.academicinvest.com/science-careers/environmental-science-careers/how-to-become-an-ecologist