conservationist vs protectionist

conservationist

noun
  • Someone who advocates for these actions. 

  • A person who maintains natural areas or protects threatened species. 

protectionist

noun
  • Someone who believes in protecting domestic producers by impeding or limiting the importation of foreign goods and services via actions taken by government. 

adj
  • Of or pertaining to protectionism, or an advocate thereof. 

How often have the words conservationist and protectionist occurred in a corpus of books? (source: Google Ngram Viewer )