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Old Warden Tunnel
The map shows you the route that this butterfly transect follows.
| County: | Bedfordshire (England) |
| Gridref: | TL1144 |
| Year established: | 2004 |
| Number of sections: | 8 |
| Altitude (m): | Unknown |
| Length (m): | 1188 |
| Width (m): | Unknown |
| Broad habitat: | Dry semi/unimproved (flower rich) neutral grassland |
Species list...
The following species have been recorded on this site:
| Species | Status | Colonised/extinct | Asynchronous | Mean count | ||
| Orange Tip | ? | 18 | more | |||
| Purple Emperor | ? | 0 | .41 | more | ||
| Ringlet | ? | 140 | more | |||
| Dark Green Fritillary | ? | 0 | .41 | more | ||
| Brown Argus | ? | 4 | .0 | more | ||
| Holly Blue | ? | 1 | .0 | more | ||
| Small Heath | ? | 5 | .5 | more | ||
| Brimstone | ? | 4 | .9 | more | ||
| Wood White | ? | 2 | .0 | more | ||
| Small Copper | ? | 1 | .0 | more | ||
| Meadow Brown | ? | 79 | more | |||
| Gatekeeper / Hedge Brown | ? | 120 | more | |||
| Marbled White | ? | 100 | more | |||
| Peacock | ? | 30 | more | |||
| Large Skipper | ? | 41 | more | |||
| Speckled Wood | ? | 100 | more | |||
| Large White | ? | 29 | more | |||
| Green-veined White | ? | 16 | more | |||
| Small White | ? | 25 | more | |||
| Comma | ? | 6 | .1 | more | ||
| Common Blue | ? | 22 | more | |||
| Grizzled Skipper | ? | 2 | .0 | more | ||
| Small Skipper | ? | 3 | .2 | more | ||
| Red Admiral | ? | 12 | more | |||
| Painted Lady | ? | 15 | more | |||
| Small/Essex Skipper | ? | 1 | .0 | more | ||
This table shows the species that have been recorded on this site. Where sufficient data is available, trends in abundance are assessed and colonisation/extinction events are identified. Species are marked as 'asynchronous' when their trends on this site are markedly different from the national trend. Click on 'more' to see a plot of abundance through time for each species. See green question mark above for more details.
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