habitat vs locus

habitat

noun
  • A place or type of site where an organism or population naturally occurs. 

  • Conditions suitable for an organism or population of organisms to live. 

  • A place in which a person lives. 

  • A terrestrial or aquatic area distinguished by geographic, abiotic and biotic features, whether entirely natural or semi-natural. 

locus

noun
  • A place or locality, especially a centre of activity or the scene of a crime. 

  • A fixed position on a chromosome that may be occupied by one or more genes. 

  • The set of all points whose coordinates satisfy a given equation or condition. 

  • A passage in writing, especially in a collection of ancient sacred writings arranged according to a theme. 

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