| Kingdom: | Plantae |
| Phylum: | Cycadopsida |
| Class: | Cycadophyta |
| Order: | Cycadales |
| Family: | Zamiaceae |
| Genus: | Dioon |
| Species: | Dioon merolae |
Study Duration: 1989 - 1997
Number of populations: 2
ID: 4958 Mean 9 x 9 1989-1997 λ = 1.0307
Population: Winterberg mountain Treatment: Unmanipulated
| Seed (prop) | Seedlings (stem diameter 10-40 mm) (active) | Juvenile (stem diameter 40-95 mm) (active) | Juvenile (stem diameter 95-240 mm) (active) | Sub-adult (stem diameter 2-5 stems) (active) | Adult (stem diameter 6-10 stems) (active) | Adult (stem diameter 11-15 stems) (active) | Adult (stem diameter 16-20 stems) (active) | Adult (stem diameter ≥ 21 stems) (active) |
| 0.241428571 | 0 | 0 | 0 | 1.33 | 2.07 | 3.43 | 4.38 | 4.73 |
| 0.444 | 0.37 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 0 | 0.074 | 0.739 | 0 | 0 | 0 | 0 | 0 | 0 |
| 0 | 0 | 0.246 | 0.962 | 0 | 0 | 0 | 0 | 0 |
| 0 | 0 | 0 | 0.038 | 0.98 | 0 | 0 | 0 | 0 |
| 0 | 0 | 0 | 0 | 0.005 | 0.989 | 0.004 | 0 | 0 |
| 0 | 0 | 0 | 0 | 0 | 0.011 | 0.981 | 0.02 | 0 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0.015 | 0.962 | 0 |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.018 | 0.99 |