Evaluation of Evidence Supporting the Effectiveness of Desert Tortoise Recovery Actions
By
William I. Boarman1 and William B. Kristan2
Table 4
Numbers of documents found in biologists' files pertaining to recovery actions that were either designed studies, or other forms of information. [See Table 5 for list of documents of designed studies]
| Topic | Other documents | Designed study | Total |
|---|
| Construction compliance | 30 | 4 | 34 |
| Grazing | 15 | 5 | 20 |
| Guzzlers | 1 | | 1 |
| Habitat change | 1 | | 1 |
| Habitat restoration | 7 | 2 | 9 |
| Headstarting | | 1 | 1 |
| OHV closure | 14 | 3 | 17 |
| OHV route marking | 8 | 14 | 22 |
| Perimeter fence | 8 | 1 | 9 |
| Predator control | 1 | 1 | 2 |
| Reserve establishment | | 3 | 3 |
| Road closure | 1 | | 1 |
| Shooting | 1 | | 1 |
| Tortoise fencing | 2 | 5 | 7 |
| Translocation | 15 | 6 | 21 |
| Total Result | 104 | 45 | 149 |