Table 1.
Survey area, number of surveys, length of census route, vegetation type and altitude ranges of the area in which each flower census was performed
| Area | Number of surveys | Length of census route (km) | Vegetation1 | Altitude (m) |
|---|---|---|---|---|
| Chichi-jima Island | ||||
| Nagasaki | 18 | 0·5 | S | 50–160 |
| Asahiyama | 20 | 1·3 | D, R | 205–265 |
| Asahidaira | 9 | 0·2 | S, R | 210–230 |
| Yoakedaira | 3 | 0·9 | D, S | 190–220 |
| Higashidaira | 20 | 1·1 | D, S | 210–250 |
| Hatsuneura | 19 | 1·0 | D, S | 200–240 |
| Chuousan | 13 | 0·4 | D, R | 260–315 |
| Shigureyama | 2 | 1·2 | D, R | 170–235 |
| Kitafukurozawa | 15 | 1·0 | C, H | 0–15 |
| Sakaiura | 4 | 1·1 | C, H | 20–45 |
| Maihama | 12 | 0·2 | C, H | 0–5 |
| Kasayama | 10 | 0·2 | S, R | 230–285 |
| Haha-jima Island | ||||
| Sekimon | 14 | 2·2 | M | 260–400 |
| Sakaigatake | 16 | 1·4 | M, S | 265–440 |
| Nagahama | 6 | 0·8 | M, C | 125–230 |
| Yashihama | 4 | 0·5 | C | 0–20 |
| Chibusayama | 7 | 4·2 | M, D | 20–460 |
| Higashiyama | 3 | 2·5 | D, R | 50–290 |
| Kuwanokiyama | 17 | 0·7 | M | 220–255 |
| Nishiura | 8 | 0·9 | D | 30–110 |
| Omotohama | 14 | 1·0 | D, C | 0–55 |
| Minamisaki | 2 | 1·6 | D, C | 0–85 |
| Nakanotaira | 13 | 0·8 | D, H | 60–90 |
| Satellite islands | ||||
| Ani-jima | 6 | 1·4 | D, S, C, R | 0–180 |
| Otouto-jima | 3 | 1·2 | D, C, R | 0–45 |
| Minami-shima | 2 | 0·6 | R, C | 0–40 |
| Nishi-jima | 1 | 0·7 | D, C, R | 0–60 |
| Muko-jima | 1 | 2·1 | R | 0–60 |
| Yome-jima | 2 | 1·3 | R | 0–85 |
| Nakoudo-jima | 1 | 0·8 | R | 0–60 |
| Nishino-shima | 1 | 0·7 | R | 0–25 |
| Mukou-jima | 8 | 1·5 | D, C, R | 0–100 |
| Hira-shima | 3 | 0·8 | D, C, R | 0–55 |
1 M = mesic forest; D = dry forest; S = shrubland; C = coastal vegetation; R = rocky grassland; H = inhabited area.