

The map shows you the route that this butterfly transect follows.
| County: | West Sussex (England) |
| Gridref: | SU8210 |
| Year established: | 1976 |
| Number of sections: | 15 |
| Altitude (m): | Unknown |
| Length (m): | 6289 |
| Width (m): | Unknown |
| Broad habitat: | Dry semi/unimproved (flower rich) chalk/limestone grassland |
Species list...
| Species | Status | Colonised/extinct | Asynchronous | Mean count | ||
| Small Tortoiseshell | Decreasing | 41 | more | |||
| Orange Tip | Stable | 7 | .7 | more | ||
| Purple Emperor | ? | 0 | .030 | more | ||
| Ringlet | Increasing | 190 | more | |||
| Dark Green Fritillary | Decreasing | Extinct in 1997 | 3 | .3 | more | |
| Pearl-bordered Fritillary | Decreasing | 0 | .23 | more | ||
| Silver-washed Fritillary | Increasing | Colonised in 1992 | 1 | .0 | more | |
| Small Pearl-bordered Fritillary | Decreasing | Extinct in 1983 | 0 | .36 | more | |
| Brown Argus | Increasing | 22 | more | |||
| Green Hairstreak | Decreasing | 5 | .6 | more | ||
| Holly Blue | Stable | 7 | .2 | more | ||
| Small Heath | Decreasing | 190 | more | |||
| Clouded Yellow | Stable | Colonised in 2002 | 1 | .2 | more | |
| Dingy Skipper | Decreasing | Extinct in 1999 | 7 | .0 | more | |
| Brimstone | Stable | 220 | more | |||
| Duke of Burgundy Fritillary | ? | 0 | .050 | more | ||
| White Admiral | Decreasing | Extinct in 1992 | 1 | .2 | more | |
| Small Copper | Stable | 120 | more | |||
| Chalk-hill Blue | Stable | 0 | .59 | more | ||
| Meadow Brown | Stable | 2300 | more | |||
| Gatekeeper/Hedge Brown | Decreasing | 240 | more | |||
| Marbled White | Increasing | Colonised in 1982 | 7 | .0 | more | |
| Peacock | Stable | 51 | more | |||
| Large Skipper | Stable | 64 | more | |||
| Speckled Wood | Stable | 150 | more | |||
| Wall Brown | Decreasing | Extinct in 1995 | 6 | .0 | more | |
| Large White | Stable | 61 | more | |||
| Green-veined White | Increasing | 26 | more | |||
| Small White | Stable | 330 | more | |||
| Comma | Stable | 27 | more | |||
| Common Blue | Stable | 150 | more | |||
| Grizzled Skipper | Stable | 17 | more | |||
| Brown Hairstreak | Stable | Colonised in 1991 | 0 | .87 | more | |
| Purple Hairstreak | Stable | Extinct in 1991 | 0 | .81 | more | |
| Red Admiral | Increasing | 20 | more | |||
| Painted Lady | Stable | 4 | .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.