| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | nature reserve | United States | Nature reserves are set aside for conservation and are popular destinations for outdoor recreation and wildlife observation. | 1 |
| 2 | nature reserve | United States | Protected area for flora and fauna, conservation of natural habitats. | 1 |
| 3 | nature reserve | United States | Nature reserves are important for preserving biodiversity and providing recreational opportunities for outdoor enthusiasts. | 1 |
| 4 | nature reserves | United States | Designated areas for conservation of wildlife and natural habitats | 1 |