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West Down (Chilbolton)
The map shows you the route that this butterfly transect follows.
| County: | Hampshire (England) |
| Gridref: | SU385389 |
| Year established: | 1988 |
| Number of sections: | |
| Altitude (m): | Unknown |
| Length (m): | 2300 |
| Width (m): | 6 |
| Broad habitat: | Bare ground/weed communities of post industrial sites e.g. quarries/pits/road/rail/landfill sites |
Species list...
The following species have been recorded on this site:
| Species | Status | Colonised/extinct | Asynchronous | Mean count | ||
| Small Tortoiseshell | Stable | 36 | more | |||
| Orange Tip | Decreasing | 8 | .8 | more | ||
| Ringlet | Stable | 62 | more | |||
| Dark Green Fritillary | ? | 0 | .33 | more | ||
| Silver-washed Fritillary | Increasing | 0 | .89 | more | ||
| Brown Argus | Stable | 50 | more | |||
| Green Hairstreak | Stable | 5 | .4 | more | ||
| Holly Blue | Stable | 2 | .1 | more | ||
| Small Heath | Decreasing | Extinct in 1997 | 7 | .9 | more | |
| Clouded Yellow | ? | 0 | .48 | more | ||
| Dingy Skipper | ? | Extinct in 1994 | 0 | .85 | more | |
| Marsh Fritillary | Stable | * | 0 | .92 | more | |
| Brimstone | Stable | 120 | more | |||
| White Admiral | ? | 0 | .24 | more | ||
| Small Copper | Stable | 14 | more | |||
| Adonis Blue | ? | 0 | .19 | more | ||
| Chalk-hill Blue | Decreasing | 62 | more | |||
| Meadow Brown | Stable | 610 | more | |||
| Gatekeeper/Hedge Brown | Stable | 210 | more | |||
| Marbled White | Stable | 100 | more | |||
| Peacock | Stable | 74 | more | |||
| Large Skipper | Decreasing | 9 | .2 | more | ||
| Speckled Wood | Stable | 33 | more | |||
| Large White | Stable | 10 | more | |||
| Green-veined White | Stable | 19 | more | |||
| Small White | Stable | 84 | more | |||
| Comma | Stable | 15 | more | |||
| Common Blue | Decreasing | 58 | more | |||
| Grizzled Skipper | Decreasing | 7 | .3 | more | ||
| Purple Hairstreak | ? | 0 | .050 | more | ||
| Small Skipper | Decreasing | 19 | more | |||
| Red Admiral | Increasing | 26 | more | |||
| Painted Lady | Stable | 5 | .7 | 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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