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IPA Factsheet - Stocks Reservoir
Site code
CountryUnited Kingdom
Administrative regionYorkshire & Humberside (Mid-west Yorkshire)
Central co-ordinates53o 52' N / 2o 24' W map
Altitude200 - 210

 Site Description Stocks Reservoir is situated at the head of the Hodder valley in the Forest of Bowland, Lancashire. It was created in 1932 by the Fylde Water Board by flooding the Dalehead valley and the surrounding farmland, including the hamlet of Stocks-in-Bowland from which the reservoir derives its name.

 Botanical Significance Rare mosses and liverworts found growing at the margins of the reservoir. Species include Weissia rostellata, Physcomitrium sphaericum, Riccia huebeneriana. Shoreline mud is exposed when water is drawn down that provides opportunities for bryophytes to establish when at appropriate conditions.

 General Habitat Description Shoreline mud is exposed when water is drawn down, providing opportunities for bryophytes to establish when at conditions are appropriate.

Land use

Land use% CoverLevel
water managementMajor
nature conservation and researchMinor

Threatened Species

Species NameIPA Assess.Species Assess.AbundanceData qualityCriteria

Botanical Richness

EUNIS level 2 code & nameIPA Assess.Habitat Assess.% of indicator speciesNo. SpeciesNational BiotopeData qualityCriteria
C3 Littoral zone of inland surface water bodies200700unknownB

Threatened Habitats

IPA Habitat code & nameIPA Assess.Habitat Assess.AreaData qualityCriteria


DesignationProtected Area NameRelationship with IPAOverlap with IPA
Area of Outstanding Natural BeautyForest of Bowlandprotected area contains IPA130


TypeDescriptionYear startedYear finishes
Species Management PlanRiccia huebeneriana (Violet Crystalwort) SAP2002
Species Management PlanWeissia rostellata (Beaked Beardless-moss) SAP2002


consequences of invasive species (plant)unknown
water (extraction/drainage/canalisation/managementunknown

 Conservation Issues Varying water levels, nutrient enrichment, invasive aquatics and shade are all threat factors to reservoir bryophytes. Threats at this particular site unknown.

Contact Information

ContactContact Type
Sally EatonSite report compiler
Cath ShellswellSite report compiler