Soudley Ponds

Site of Special Scientific Interest · 51.7987, -2.4914

Condition (Natural England)

Unfavourable No Change (1)
UnitFeatureConditionArea (ha)Assessed
SO662112 Unfavourable No Change 6.22 2021-11-11

Geology & landscape

Geological Period: Carboniferous · Rock Type: Carboniferous Limestone, Limestone, Sandstone

Description

Area, 7.04 ha. 17.4 ac. Description The extensive woodland of Forest of Dean has been managed for timber production for many centuries, with planting and careful management maintaining a mosaic of woodland types. The central region lies on the Coal Measures and supports oak woodland with a fairly restricted lime hating calcifuge ground flora. Surrounding this acid area are the Carboniferous Limestone and Old Red Sandstone rocks which give rise to more fertile soils with a variety of woodland types over a richer ground flora. The site consists of a series of ponds situated along the course of the Soudley Brook. They represent fine examples of a wetland habitat rich in wildlife and are bordered by damp woodland. The three main ponds have relatively large expanses of open water. The marginal vegetation consists largely of reed mace Typha latifolia, sweet flag Iris pseudacorus, Acorus calamus, yellow flag water plantain Alisma plantago-aquatica, watercress Nasturtium officinale, water whorl grass Catabrosa aquatica and water dock Rumex hydrolapathum. Crayfish Austropotamobius pallipes are present and the ponds are exceptionally rich in other invertebrate species. Of the several hundred species of beetle recorded from the area, 28 are only known in Gloucestershire from Soudley Ponds. A number of these, such as the blue soldier beetle Ancistronycha abdominalis are normally confined to northern England. Another species of interest is the staphylinid beetle Dianous coerulescens found in considerable numbers near one of the dams. The ponds are one of the prime dragonfly sites in the county, 18 species having been recorded. The marginal woodland habitat is dominated by alder Alnus glutinosa with pedunculate oak Quercus robur and birch Betula pendula over coppiced hazel Corylus avellana and other shrub species. The damp field layer includes woodland species such as dog’s mercury Mercurialis perennis, male fern Dryopteris filix-mas and tufted hair grass Deschampsia cespitosa with patches of wood bittercress Cardamine flexuosa and opposite leaved golden saxifrage Chrysosplenium oppositifolium. The woodland is also important for its fungi.

Species mentioned

English name
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Latin name
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IUCN / Red List Type Family
blue soldier beetle Ancistronycha abdominalis LC beetle cantharidae
no common name Dianous coerulescens Not listed in GB list beetle rove staphylinidae
reedmace Typha latifolia LC bulrush typhaceae
native freshwater crayfish Austropotamobius pallipes Not listed in GB list crustacean astacidae
male fern Dryopteris filix-mas LC fern dryopteridaceae
water whorl-grass Catabrosa aquatica EN grass poaceae
tufted hair grass Deschampsia cespitosa LC grass poaceae
sweet flag Acorus calamus Not listed in GB list herb acoraceae
water plantain Alisma plantago-aquatica LC herb alismataceae
wavy bitter-cress Cardamine flexuosa LC herb brassicaceae
opposite-leaved golden- saxifrage Chrysosplenium oppositifolium LC herb saxifragaceae
yellow iris or flag Iris pseudacorus LC herb iridaceae
dog's mercury Mercurialis perennis LC herb euphorbiaceae
watercress Nasturtium officinale LC herb brassicaceae
water dock Rumex hydrolapathum NT herb polygonaceae
alder Alnus glutinosa LC tree salicaceae
birch Betula pendula LC tree betulaceae
hazel Corylus avellana LC tree corylaceae
common oak Quercus robur LC tree fagaceae