NORFOLK BIODIVERSITY ACTION PLAN SPECIES DATA AUDIT ...

Species Present
or
absent
in
Norfolk
Fenn’s Wainscot
Chortodes brevilinea
Water-dock Case-bearer
Coleophora hydrolapathella
Basil-thyme Case-bearer
Coleophora tricolor
White-spotted Pinion
Cosmia diffinis
Goat Moth
Cossus cossus
No. of
records in
database
No. of
1km
squares
recorded
since
1980
Possible other
sources
of data sets
45
Other survey
work
completed or
in progress
Comments
P 28 14 BC, Rothamstead Institute RDB species, occurring only in Norfolk
Broads with isolated populations on the
Suffolk coast.
Found in reedbeds, preferring drier areas
and associated with biannual management
regimes.
Small British population constricted by
available habitat, although has shown recent
signs of range expansion.
New to national list of BAP priority
species 2007
P 5 4 BC, Rothamstead Institute Nationally Scarce B
Restricted to Broads in association with
Water Dock (Rumex hydrolapathum).
Marked decline in UK – Habitat loss and
degradation.
New to national list of BAP priority
species 2007
P 53 17 BC, Rothamstead Institute Current UK Species Action Plan.
Internationally threatened - Decline in the
abundance of the foodplant due to
reductions in grazing intensity, particularly as
a result of changes in rabbit populations and
loss of unimproved Breck grassland.
P 10 3 BC, Rothamstead Institute pRDB species. Current UK Species Action
Plan.
Marked decline in UK - Death of mature elms
as a result of Dutch elm disease.
P 14 10 BC, Rothamstead Institute Nationally Scarce B
Associated with mature deciduous trees in
fens, marshes, riverbanks, parks, hedgerows
and woodland edges.
Declining – Possibly due to decline in large,
mature trees that are required by it’s larvae.
New to national list of BAP priority
species 2007