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West Yatton Down
The map shows you the route that this butterfly transect follows.
| County: | Wiltshire (England) |
| Gridref: | ST853759 |
| Year established: | 1996 |
| Number of sections: | 15 |
| Altitude (m): | Unknown |
| Length (m): | 3500 |
| Width (m): | Unknown |
| Broad habitat: | Dry semi/unimproved (flower rich) chalk/limestone grassland |
Species list...
The following species have been recorded on this site:
| Species | Status | Colonised/extinct | Asynchronous | Mean count | ||
| Orange Tip | Stable | 42 | more | |||
| Ringlet | Increasing | 270 | more | |||
| Dark Green Fritillary | Stable | 2 | .3 | more | ||
| Silver-washed Fritillary | Stable | 6 | .1 | more | ||
| Brown Argus | Stable | 150 | more | |||
| Green Hairstreak | Stable | 29 | more | |||
| Holly Blue | Stable | 11 | more | |||
| Small Heath | Stable | 180 | more | |||
| Clouded Yellow | Stable | 5 | .9 | more | ||
| Small Blue | Stable | 2 | .9 | more | ||
| Dingy Skipper | Stable | 75 | more | |||
| Marsh Fritillary | ? | 3 | .0 | more | ||
| Brimstone | Stable | * | 200 | more | ||
| Small Copper | Stable | 22 | more | |||
| Adonis Blue | Stable | 7 | .1 | more | ||
| Chalk-hill Blue | Stable | 190 | more | |||
| Meadow Brown | Stable | 1300 | more | |||
| Gatekeeper / Hedge Brown | Stable | * | 170 | more | ||
| Marbled White | Increasing | 400 | more | |||
| Peacock | Stable | 190 | more | |||
| Large Skipper | Increasing | * | 53 | more | ||
| Speckled Wood | Increasing | 170 | more | |||
| Wall Brown | ? | 1 | .8 | more | ||
| Large White | Stable | 130 | more | |||
| Green-veined White | Stable | 140 | more | |||
| Small White | Stable | 83 | more | |||
| Comma | Increasing | 36 | more | |||
| Common Blue | Stable | 340 | more | |||
| White-letter Hairstreak | ? | 0 | .47 | more | ||
| Purple Hairstreak | ? | 0 | .41 | more | ||
| Small Skipper | Stable | 82 | more | |||
| Red Admiral | Stable | 32 | more | |||
| Painted Lady | Stable | 5 | .8 | more | ||
| Small/Essex Skipper | Stable | 54 | 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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