Narroways Millennium Green Ecological Management Statement 2016-2018

Narroways haycut

This statement informs the way we manage the site.

Background and Status

Narroways Millennium Green LNR covers approximately 2.5 hectares and is situated in the Northeast part of Bristol, to the west of the M32, in St Werburghs. The site consists of mixed habitat of grassland, scrub, hedgerows and broad leaved woodland. Some of this grassland is unimproved (low nutrient) with good species diversity and includes admixtures of both calcareous (lime loving) and more prevalent neutral grassland. There is a landscaped garden, which possesses a small pond. The site is owned by Bristol City Council.

Statement of Intent

Care of the site will aim –

  • To maintain and enhance unimproved meadows by appropriate management by annual hay cutting in July or August with all arisings being removed and put into scrub areas to provide different habitat (especially for hedgehogs and other mammals). An early cut in early April may also increase competition from desirable herbs over more competitive grasses.
  • To reduce and control scrub encroachment onto meadows: brash piles may be created in scrub woodland surrounding meadows.
  • To thin areas of scrub periodically and allow to regenerate, to create diversity of age and structure: brash and log piles can be provided in woodland for greater habitat diversity.
  • To minimise colonisation by non-native trees in older woodland areas by thinning and pruning
  • To install appropriately placed bird and bat boxes to enhance wildlife value
  • To maintain principle paths on the site and the fence surrounding the site, where this fence is the responsibility of NMGT.
  • To clear litter from the site and to tackle the issue of dog mess left by dog owners

Species of Note Recorded

Birds; Recent (2004) surveys have revealed 16 species, including the BAP species: House Sparrow and Bullfinch. (more recent records include Waxwing, Raven, Great Spotted and Green Woodpeckers, Tawny Owls and Sparrowhawks)

Woody plants: 17 tree and shrub species recorded in 2004 survey (Phil Quinn).

Herbaceous Plants: 108 species recorded (mostly from 2004 (Quinn) grassland surveys) including the nutrient poor (unimproved or species rich) grassland indicator species; Corky Fruited Water Dropwort, Common Restharrow, Upright Brome, Black Knapweed, Wild Carrot, Bird’s Foot Trefoil, Agrimony, Autumn Hawkbit, Rough Hawkbit, Lady’s Bedstraw, Field Scabious, Sweet Vernal Grass and Yellow Oat Grass.

Meadow management is desirable to maintain and enhance these populations.

Other species recorded in previous (pre-2004) surveys include Knapweed Broomrape and Hairy Rock Cress. These two species ‘have not been seen for many years’ (Quinn 2004) and hence it is worth surveying for them in future years.

Insects; 2004 surveys revealed 10 butterfly species, including grassland indicators such as Common Blue, Marbled White and Small Skipper: (records over the past 10 years indicate as many as 22 butterfly species on and around Narroways)

Lichens: 13 species have been recorded including a typical suite on ash twigs made up of Caloplaca cerinella, Lecania cyrtella, Lecania naegellii, & Lecanora hagenii.

Species Data Deficiencies: Invertebrates, bats, reptiles and amphibians, mammals, birds, bryophytes, fungi

Priority Recommendations for Future Surveys

  • Bat surveys along scrub and woodland edge (Common and Soprano Pipistrelle and Noctule bats have been recorded by detector over Narroways)
  • Dragonfly and damselfly surveys around local ponds.
  • Botanical surveys of species rich grassland/meadows
  • Botanical surveys of woodland and scrub
  • Mammal activity surveys of the whole site (though, amongst others, we have records of fox, badger, bank vole, wood mouse, hedgehog, roe and Muntjac deer on and around Narroways)

Recommended Three Year Work Plan

Management Type 2015/16

Winter

2016

Summer

2016/17

Winter

2017

Summer

2017/18

Winter

2018

Summer

Review
Annual Hay Cut Meadow (late July-August)   Yes   Yes   Yes 2018
Rotational thin of Scrub, especially of hawthorn, ash, suckering fruit trees Yes   Yes   Yes   2018
Thin young trees of Norway Maple & Sycamore in scrub and woodland Yes   Yes   Yes   2018
Thin scrub/small trees in meadow areas to prevent further encroachment Yes Yes Yes Yes Yes Yes 2018
Buy and install bat and bird boxes Yes           2017
10-25% thin of young woody growth in woodland especially ash (every 3 years)     Yes       2017
Cut or scallop Tall Herb/Bramble Communities biennially Yes       Yes   2018
Cut all vegetation (soft and woody) on both sides of all paths Yes Yes Yes Yes Yes Yes 2018
Monitor woodland boundary to ensure tree safety     Yes       2017
City Farm community garden – management of pond for biodiversity Yes Yes Yes Yes Yes Yes 2018
City Farm city farm community garden- management of native species hedges for biodiversity including trimming to maintain density Yes Yes Yes Yes Yes Yes 2018
Review Statement             2018

Botanical identification training and habitat management advice can be provided by Bristol City Council Woodland and Wildlife Officer.

Compiled by Justin Smith; BCC Woodland and Wildlife Officer and reviewed by Geoff Thomson and Harry McPhillimy of NMGT (2015)

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