Relating to the study of fauna or to a specialist in fauna; characteristic of faunists or faunistic approaches.
From 'faunist' plus '-ic' suffix (meaning 'relating to'). The '-ic' suffix is used extensively in scientific and technical terminology to create adjectives from nouns.
When scientists talk about 'faunistic assemblages' or 'faunistic analysis', they're discussing their toolkit for understanding animal communities! It's the kind of technical adjective that signals you're in the realm of specialized biological study.
Complete word intelligence in one call. Free tier — 50 lookups/day.