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Severn Barrows
The map shows you the route that this butterfly transect follows.
| County: | Berkshire (England) |
| Gridref: | SU329828 |
| Year established: | 2003 |
| Number of sections: | 4 |
| Altitude (m): | Unknown |
| Length (m): | 650 |
| Width (m): | 5 |
| 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 | ||
| Ringlet | ? | 31 | more | |||
| Brown Argus | ? | 50 | more | |||
| Holly Blue | ? | 6 | .0 | more | ||
| Small Heath | ? | 96 | more | |||
| Small Blue | ? | 2 | .2 | more | ||
| Dingy Skipper | ? | 17 | more | |||
| Marsh Fritillary | ? | 28 | more | |||
| Duke of Burgundy Fritillary | ? | 1 | .0 | more | ||
| Small Copper | ? | 21 | more | |||
| Chalk-hill Blue | ? | 130 | more | |||
| Meadow Brown | ? | 550 | more | |||
| Gatekeeper / Hedge Brown | ? | 30 | more | |||
| Marbled White | ? | 280 | more | |||
| Peacock | ? | 6 | .0 | more | ||
| Large Skipper | ? | 42 | more | |||
| Large White | ? | 38 | more | |||
| Green-veined White | ? | 11 | more | |||
| Small White | ? | 48 | more | |||
| Comma | ? | 2 | .0 | more | ||
| Common Blue | ? | 120 | more | |||
| Small Skipper | ? | 100 | more | |||
| Red Admiral | ? | 0 | .73 | more | ||
| Painted Lady | ? | 19 | more | |||
| Small/Essex Skipper | ? | 9 | .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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