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ANNEX 8: TERRESTRIAL MAMMALS

European Hedgehog Erinaceus uropaeus

P

Brown Hare Lepus europaeus

P

MAMMALS

Species

Water Vole Arvicola terrestris

Barbastelle bat Barbastella barbastellus

Otter Lutra lutra

Harvest Mouse Micromys minutus

Dormouse Muscardinus avellanarius

Polecat Mustela putorius

Noctule Bat Nyctalus noctula

Present or absent in Norfolk

P

P

P

P

P?

P?

No. of records in database

No. of 1km squares recorded since 1980

Possible other sources of data sets

Other survey work completed or in progress

1210

606

Steve Henson/NWT records (+-1500)

NCC/NWT/NE/ IDB/others mink project Various proposals for surveys – these require funding

115

39

Comments

1025

3007

1069

693

6

8

1097

1520

315

284

1

6

Steve Henson/NWT records (+-1500) Data transfer from NT agreed

Should try: NNNS Norfolk Natterjack newsletter showing gaps

Paucity of records from Waveney, Thet & Wensum valley. Data transfer from NWT this year. Norfolk Action Plan published December 1998, revised February 2002. European Protected Species. Probably an almost complete record of the species in the county. New site found in 2006. Norfolk action plan in preparation. Figures from national monitoring projects suggest serious decline New to national list of BAP priority species 2007 Lack of records West Norfolk due to observer bias. Weighted by estates in North Norfolk. Northern Distributor Road evaluation showed very few in arable lands round Norwich. Norfolk Action Plan published December 1998, revised January 2006.

European Protected Species The serious declines of the 1950s-1970s have been arrested with protection and improved water quality. Numbers slowly recovering. Lack of records Norfolk/Suffolk border and Tas Valley. Data transfer from NWT this year. Norfolk Action Plan published December 1998, revised February 2002. Small number of records annually indicate that with concerted attention this species may be widespread but under-recorded New to national list of BAP priority species 2007 Six old records, with a possible sighting in 2006. Small captive breeding program in the county, supporting the suggestion of reintroduction in the future. Currently recolonising parts of lowland Britain from which it was trapped to extinction at the end of the 19thC. Difficult to assess confusion between this species, ferrets and hybrids. New to national list of BAP priority species 2007 Has declined in Britain owing to modern intensive agricultural practices with loss of suitable feeding habitat (permanent pasture and woodland edge/hedgerows rich in invertebrate fauna. Loss of suitable trees for roosting is also a major factor. Norfolk umbrella action plan for bats in preparation. New to national list of BAP priority species 2007

63

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