This page contains information regarding Star Trek: Lower Decks, and thus may contain spoilers.
Vulcan had several of these areas. As a child, Leanne's father used to take her to wilderness preserves on Vulcan, which left her with the false impression that it was only populated by wildlife, not people. (DS9: "Life Support")
In 2375, Seven of Nine endeavored to study Human behavior by taking field notes on the crew of the USS Voyager. Kathryn Janeway asked her to find another method of study, saying, "This is a starship, not a nature preserve." (VOY: "Someone to Watch Over Me")
In 2381, Ensigns Brad Boimler and Sam Rutherford convinced the Ferengi poacher Kynk that it would be more profitable to develop a mugato preserve on Frylon IV instead of killing and selling the endangered animals. Kynk took their advice and built Kynk's Mugatoland. (LD: "Mugato, Gumato")