The Legislature finds and declares that the department has in the past not been adequately funded to meet its mandates. The principal causes have been the fixed nature of the department’s revenues in contrast with the rising costs resulting from inflation, the increased burden on the department to carry out its public trust responsibilities, and additional responsibilities placed on the department by the Legislature. This lack of funding has prevented proper planning and manpower allocation. The lack of funding has required the department to restrict warden enforcement and to defer essential management of lands acquired for wildlife conservation. The lack of funding for fish and wildlife conservation activities other than sport and commercial fishing and hunting activities has resulted in inadequate wildlife and habitat conservation and wildlife protection programs.