TL32

Butterfly Conservation
Hertfordshire and Middlesex Decad (10km square) Mapping Progress 2009

TL32

Click on image for detailed map

TL32 ~ Click on image for detailed map

Decad co-ordinator: Decad co-ordinator:
TL32 was added in 2008 to the challenge as recording progress had been poor but thanks to Phil, coverage is considerably improved.

Link sections on this page . . .
Table One ~ Coverage
Table Two ~ Species richness map
Table Three ~ Target species table

Table One ~ Coverage
Table One lists tetrads where coverage is poor or a specific season visit is required. Please look at Table 3 to find out what species have not been recorded.



Tetrad (2km square) Centered on Coverage
TL3020 Bromley Common Relatively well covered
TL3022 Benington/Burn's Green Relatively well covered
TL3024 Bassus Green All season visits required
TL3026 Ardeley Relatively well covered
TL3028 Cottered [west] All season visits still required
TL3220 Dane End All season visits required
TL3222 Haultwick All season visits required
TL3224 Wood End All season visits required
TL3226 Moor Green Spring visits required
TL3228 Cottered [east] All season visits required
TL3420 Potter's Green All season visits required
TL3422 Levens Green All season visits required
TL3424 Great Munden/Nasty All season visits required - priority square
TL3426 Wakeley All season visits required
TL3428 Thistley Vale Relatively well covered
TL3620 Colliers End Well covered
TL3622 Old Hall Green Relatively well covered
TL3624 Hamels Park Relatively well covered
TL3626 Westmill Relatively well covered
TL3628 Buntingford Well covered
TL3820 Latchford Well covered
TL3822 Standon / Puckeridge Well covered
TL3824 Braughing All season visits required
TL3826 Dassels Relatively well covered
TL3828 Hare Street All season visits required

Table Two ~ Species Richness Grid
Table Two is a 5 x 5 grid of the tetrads (2km squares) in TL32, and shows the species richness for each tetrad based on recording in 2005 - 2008. No transects are walked in TL32

Special richness grid for TL32

Table Three ~ Target Species
Table Three indicates the distribution of species recorded in TL32 only and the tetrads that need to be visited for specific species. There are 2km squares with no records

1 = a record
Species 3020 3022 3024 3026 3028 3220 3222 3224 3226 3228 3420 3422 3424 3426 3428 3620 3622 3624 3626 3628 3820 3822 3824 3826 3828 Total
Brimstone 1 1 1 1 1 1 1 1 1 1 1 1 1 13
Brown Argus 1 1 1 1 1 5
Chalk-hill Blue 0
Clouded Yellow 1 0
Comma 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 19
Common Blue 1 1 1 1 1 1 1 1 7
Essex Skipper 1 1 1 1 1 1 1 1 1 9
Gatekeeper 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 19
Green-veined White 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 23
Holly Blue 1 1 1 1 1 1 1 1 1 1 10
Large Skipper 1 1 1 1 1 5
Large White 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 24
Marbled White 1 0
Meadow Brown 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 23
Orange Tip 1 1 1 1 1 1 1 1 1 1 1 1 1 14
Painted Lady 1 1 1 1 4
Peacock 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 22
Purple Hairstreak 1 1
Red Admiral 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 21
Ringlet 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 19
Silver-washed Fritillary 1 1
Small Copper 1 1 2
Small Heath 1 1 2
Small Skipper 1 1 1 1 1 1 1 1 1 9
Small Tortoiseshell 1 1 1 1 1 1 1 1 1 1 1 1 1 13
Small White 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 25
Small/Essex Skipper -
Speckled Wood 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 18
White-letter Hairstreak 1 1 1 1 4
Total 14 13 9 12 10 16 10 11 16 12 10 9 7 10 15 19 12 11 14 15 16 16 10 14 11
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