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Holtspur Bottom Reserve

Here we provide all the information we have for each transect site.

For example, clicking on one of the section titles below will display the site description (shown automatically), as well as a list of the species recorded here, and their yearly counts. However, you can also chose to Show All the sections, or even Hide All, if you so wish.

Map of Holtspur Bottom Reserve

The map shows you the route that this butterfly transect follows.


County : England(Buckinghamshire)
Gridref : SU91709040
Year established : 2007
Number of sections : 9
Altitude (m) :
Length (m) : 1125
Width (m) : 10
Broad habitat : Dry semi/unimproved (flower rich) chalk/limestone grassland
The following species have been recorded on this site:
SpeciesStatusColonised / ExtinctMean Count 
Small SkipperStable 6.83 more
Essex SkipperStable 1.39 more
Large SkipperStable 6.41 more
Dingy Skipper? 1 more
Clouded Yellow? 0.50 more
BrimstoneStable 38.68 more
Large WhiteStable 21.83 more
Small WhiteStable 37.30 more
Green-veined WhiteIncreasing 4.69 more
Orange-tipStable 7.04 more
Green Hairstreak? 0.26 more
Small CopperStable 6.36 more
Small BlueIncreasing 3.50 more
Brown ArgusStable 6.86 more
Common BlueStable 92.96 more
Chalk Hill BlueStable 15.80 more
Adonis Blue? 0.19 more
Holly BlueStable 3.06 more
Red AdmiralStable 2.48 more
Painted Lady? 1.06 more
Small TortoiseshellIncreasing 10.83 more
PeacockStable 7.94 more
CommaStable 6.67 more
Speckled WoodStable 22.49 more
Marbled WhiteIncreasing 94.87 more
GatekeeperStable 49.17 more
Meadow BrownStable 522.77 more
Small Heath? 0.40 more
RingletStable 69.45 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. Click on 'more' to see a plot of abundance through time for each species. See green question mark above for more details.


The UK Butterfly Monitoring Scheme is organized and funded by Butterfly Conservation (BC), the Centre for Ecology and Hydrology (CEH), the British Trust for Ornithology (BTO), and the Joint Nature Conservation Committee (JNCC). The UKBMS is indebted to all volunteers who contribute data to the scheme.