Introduction
Study area
Materials and methods
Species | Years of inventory | Total years | No. of sites | Highest census (year) | Final census (2008) | Actual % census decline | % Data missing |
---|---|---|---|---|---|---|---|
Aplectrum hyemale
| 1968–2008 | 41 | 6 | 151 (1973) | 4 | 97.35 | 2.4 |
Coeloglossum viride var. virescens
| 1983–2008 | 26 | 6 | 117 (1986) | 38 | 66.96 | 3.8 |
Corallorhiza maculata var. maculata
| 1982–2008 | 27 | 5 | 126 (1982) | 5 | 96.06 | 1.5 |
C. odontorhiza var. odontorhiza
| 1981–2008 | 28 | 13 | 977 (1986) | 100 | 92.55 | 3.8 |
Cypripedium acaule
| 1984–2008 | 25 | 25 | 1200 (1984) | 160 | 86.3 | 5.9 |
C. parviflorum var. pubescens
| 1981–2008 | 28 | 17 | 127 (1982) | 0 | 100 | 4.4 |
Epipactis helleborine
| 1987–2008 | 22 | 8 | 392 (1993) | 15 | 96.17 | 1.5 |
Galearis spectabilis
| 1981–2008 | 28 | 21 | 1319 (1985) | 257 | 80.52 | 5.3 |
Goodyera pubescens
| 1983–2008 | 26 | 22 | 761 (1984) | 115 | 84.38 | 6.4 |
Isotria verticillata
| 1982–2008 | 27 | 14 | 966 (1985) | 110 | 87.23 | 4.5 |
Liparis liliifolia
| 1980–2008 | 29 | 11 | 269 (1983) | 27 | 91.15 | 1.9 |
Platanthera ciliaris
a
| 1974–2008 | 35 | 10 | 299 (1974) | 50 | 81.62 | 0.6 |
P. clavellata
| 1980–2008 | 29 | 23 | 1518 (1981) | 517 | 61 | 1.6 |
P. flava var. herbiola
| 1985–2008 | 26 | 7 | 286 (1987) | 270 | 5.59 | 1.2 |
P. grandiflora
| 1979–2008 | 30 | 12 | 476 (1983) | 233 | 51.05 | 2.2 |
P. lacera
| 1980–2008 | 29 | 9 | 230 (1980) | 55 | 76.09 | 0.4 |
P. orbiculata
| 1983–2008 | 26 | 9 | 59 (1984) | 0 | 100 | 2.1 |
Spiranthes cernua
| 1984–2008 | 25 | 10 | 244 (1984) | 31 | 87.3 | 0 |
S. lacera var. gracilis
| 1981–2008 | 28 | 8 | 223 (1983) | 2 | 99.15 | 1.8 |
S. ochroleuca
| 1985–2008 | 24 | 4 | 41 (1986) | 0 | 100 | 0 |
Tipularia discolor
| 1978–2008 | 31 | 3 | 62 (1980) | 5 | 91.94 | 0 |