Table 1.
Main characteristics and coordinates of the populations sampled within the natural range of D. monticola
| Region | Nreg | Provenance | NProv | Population within provenance | NPop | Latitude (S) | Longiude (E) | Altitude | Min_max circ (cm)* | Area† | Landscape code‡ |
|---|---|---|---|---|---|---|---|---|---|---|---|
| North | 19 | Tsaramolotra§ | 10 | Tsaramolotra | 10 | 16°57′ | 48°44′ | 900–1200 | – | ≈6 ha | 3 |
| Ampitsongona | 9 | Ampitsongona | 9 | 17°05′ | 48°42′ | 900–1200 | – | ≈4 ha | 3 | ||
| Centre-North | 59 | Didy | 33 | – | 18°10′ | 48°35′ | 800–900 | ||||
| Didy | 13 | – | 4·50 ha | 3 | |||||||
| Valivona | 20 | – | 5·10 ha | 2 | |||||||
| Anbohijanahary | 9 | Anbohijanahary | 9 | 17°45′ | 48°35′ | 800–900 | – | ≈3 ha | 3 | ||
| Antsevabe | 17 | – | 17°55′ | 48°32′ | 800–900 | ||||||
| Antsevabe | 11 | – | – | – | – | ≈3 ha | 3 | ||||
| Ambavala | 6 | – | – | – | – | ≈3 ha | 2 | ||||
| Centre | 243 | Ankeniheny | 8 | Madiorano/Ankeniheny | 8 | 19°10′ | 48°35′ | 800–1100 | 56–75 | ≈3 ha | 3 |
| Bekorakaka | 205 | – | 19°06′ | 48°21′ | 850–900 | ||||||
| Ambodigoavy | 12 | – | – | – | 24 ha | 3 | |||||
| Sandrajahana | 61 | – | – | – | 10–67 | 9·68 ha | 3 | ||||
| Sahambaky | 58 | – | – | – | 11–70 | 4·95 ha | 3 | ||||
| Bekorakaka | 56 | – | – | – | 10–71 | 16·84 ha | 3 | ||||
| Manasamena | 18 | ≈16 ha | 3 | ||||||||
| Andasibe | 30 | – | 18°56′ | 48°25′ | 800–1000 | ||||||
| Analamazaotra | 21 | – | – | – | – | 4·50 ha | 1 | ||||
| Mantadia | 9 | – | – | – | – | 2·20 ha | 1 | ||||
| South | 225 | Tolongoina | 18 | Tolongoina | 18 | 21°34′ | 47°32′ | 800–1200 | – | 1·60 ha | 2 |
| Ranomafana | 207 | – | 21°16′ | 47°26′ | 900–1000 | ||||||
| Mahatazana | 26 | – | – | – | – | 4 ha | 2 | ||||
| Talatakely | 121 | – | – | – | 12–213 | 10·92 ha | 1 | ||||
| Vatolampy | 60 | – | – | – | 16–109 | 3·56 ha | 1 | ||||
| Total | 546 |
Nreg is the number of individuals in each region, NProv is the number of individuals in each provenance, NPop is the number of individuals in each population.
* Minimum and maximum circumference of individuals sample in the population.
† Approximate area of total forest habitat occupied by population estimated by the product of the transect length and the width of the band prospected (20 m each side).
‡ Landscape code: 1, forest landscape presenting no fragmentation but some small zones (<0·5 ha) are clear cut within the forest; 2, recently fragmented forest, characterized by large fragments (several hundred hectares) separated by 500–1500 m; 3, forest strongly impacted by slash and burn leading to fragmentation, in which the landscape is characterized by small forest fragments (10–20 ha) separated by >2000 m (fragmentation occurred >20 years ago).
§ Provenance represented by a single population.