Silverbrook Wood

Site of Special Scientific Interest · 54.8499, -7.2922

Description

Silverbrook Wood oakwood The area is of special scientific interest for its woodland flora and fauna. Despite its moderate extent, Silverbrook Wood includes a number of woodland plant communities, ranging from strongly acidic to flushed and base-rich. As a result of this variation, the area has one of the richest woodland plant assemblages in Northern Ireland and supports a number of notable woodland plants and animals. Silverbrook Wood lies to the south of Dunnamanagh and extends along the Burn Dennet River and its tributary, the Lockagh Bum. The largest and most continuous woodland block occurs on the steep, north-facing valley slope. Both the management and local edaphic conditions are very variable. This variation influences the composition of the woodland, resulting in a very diverse woodland flora. Downy birch Betula pubescens and oak Quercus spp. generally dominate the canopy. Other tree species include ash Fraxinus excelsior which is found in more base-rich conditions, alder Alnus glutinosa which is characteristic of the wettest parts, and non-native beech Fagus sylvatica. The shrub layer consists of hazel Corylus avellana, which in the absence of mature trees, frequently forms a dense, low canopy. Other shrub species include holly Ilex aquifolium, rowan Sorbus aucuparia, hawthorn Crataegus monogyna and in wetter conditions, willow Salix spp. Where present the field layer consists of a mixture of ferns, thickets of bramble Rubus fruticosus agg. and locally in the most acidic conditions, the dwarf-shrub bilberry Vaccinium myrtillus. The herb layer reflects the acidic nature of the wood and is dominated by great wood rush Luzula sylvatica, with bluebell Hyacinthoides non-scripta locally prominent in damper conditions. On more base-rich soils there is a notable increase in species richness. Additional species here include primrose Primula vulgaris, wood avens Geum urbanum, sanicle Sanicula europaea, lesser celandine Ranunculus ficaria and wood sedge Carex sylvatica. Wood anemone Anemone nemorosa, woodruff Galium odoratum, opposite-leaved golden-saxifrage Chrysosplenium oppositifolium and remote sedge Carex remota are characteristic of the very wettest parts. In addition to its overall species diversity, the woodland supports a number of rare woodland plants including bird cherry Prunus padus and wood fescue Festuca altissima. Silverbrook Wood also provides an important habitat for animals, including breeding birds and mammals. Mammals present include otter Lutra lutra, badger Meles meles, stoat Mustela erminea and red squirrel Sciurus vulgaris. https://www.daera-ni.gov.uk/publications/silverbrook-wood-assi

Species mentioned

English name
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Latin name
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IUCN / Red List Type Family
otter Lutra lutra LC carnivore mustelidae
badger Meles meles LC carnivore mustelidae
stoat Mustela erminea LC carnivore mustelidae
wood fescue Festuca altissima Not listed in GB list grass poaceae
wood anemone Anemone nemorosa LC herb ranunculaceae
opposite-leaved golden- saxifrage Chrysosplenium oppositifolium LC herb saxifragaceae
woodruff Galium odoratum LC herb rubiaceae
herb bennet Geum urbanum LC herb rosaceae
bluebell Hyacinthoides non-scripta LC herb liliaceae
primrose Primula vulgaris LC herb primulaceae
bramble Rubus fruticosus agg. Not listed in GB list herb rosaceae
sanicle Sanicula europaea LC herb apiaceae
red squirrel Sciurus vulgaris EN rodent sciuridae
great wood rush Luzula sylvatica LC rush juncaceae
remote sedge Carex remota LC sedge cyperaceae
wood sedge Carex sylvatica LC sedge cyperaceae
hawthorn Crataegus monogyna LC shrub rosaceae
billberry Vaccinium myrtillus LC shrub ericaceae
alder Alnus glutinosa LC tree salicaceae
downy birch Betula pubescens LC tree betulaceae
hazel Corylus avellana LC tree corylaceae
beech Fagus sylvatica LC tree fabiaceae
ash Fraxinus excelsior LC tree oleaceae
holly Ilex aquifolium LC tree aquifoliaceae
bird cherry Prunus padus LC tree rosaceae
rowan Sorbus aucuparia LC tree rosaceae

Plant communities

A9 — Fast flowing river and stream, Marginal and inundation, Pond ditch and canal, Sluggish river and stream

Potamogeton natans community

Schoenoplectus lacustris, Juncus bulbosus, Sparganium angustifolium, Sparganium erectum, Sparganium minimum, Alisma plantago-aquatica, Lobelia dortmanna, Equisetum fluviatile, Myriophyllum alterniflorum, Elodea canadensis, Lemna minor, Lemna trisulca, Nymphaea alba, Callitriche platycarpa, Callitriche stagnalis, Littorella uniflora, Potamogeton natans, Ranunculus trichophyllus, Glyceria fluitans, Chara subspinosa

A14 — Fast flowing river and stream

Myriophyllum alterniflorum community

Isolepis fluitans, Juncus bulbosus, Fontinalis antipyretica, Lobelia dortmanna, Equisetum fluviatile, Myriophyllum alterniflorum, Lemna minor, Callitriche stagnalis, Littorella uniflora, Potamogeton filiformis, Potamogeton gramineus, Potamogeton natans, Ranunculus peltatus, Chara spp., Nitella hyalina

A17 — Chalk river and stream, Fast flowing river and stream

Ranunculus penicillatus ssp. pseudofluitans community

Berula erecta, Nasturtium officinale, Elodea canadensis, Lemna minor, Callitriche stagnalis, Veronica beccabunga, Polygonum amphibium, Polygonum hydropiper, Potamogeton crispus, Potamogeton pectinatus, Ranunculus penicillatus ssp. pseudofluitans

A18 — Fast flowing river and stream

Ranunculus fluitans community

Fontinalis antipyretica, Fontinalis squamosa var. curnowii, Myriophyllum alterniflorum, Myriophyllum spicatum, Elodea canadensis, Mentha aquatica, Lemna gibba, Lemna minor, Potamogeton perfoliatus, Ranunculus fluitans, Glyceria fluitans, Phalaris arundinacea