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The habitat areas contained herein have been derived using the best available desktop information at the time of plan preparation in addition to field survey. This includes OSNI orthos and condition assessment data and reports 2002-2022.
This site was mapped by Arup.
Definitions of Annex 1 classifications were as follows -
a. H7130* if they were dominated by the M15abc, M17, M18, M19, M20 and active M25 vegetation communities e.g. if the NVC for a polygon had 100% active M25 = H7130* and if it had 50% active M25 and 50% M19 it was also H7130*.
b. H7130 have 50% or below of the above vegetation communities paired with any unfavourable activities (e.g. overgrazing) and the vegetation communities listed (M15d, M20, activeM25, M6 flushes on deep peat with some peat forming species).
c. H7130 Degraded – Non-bog vegetation on deep peat or cutover deep peat.
d. The remaining polygons have been left as Non-Annex as the field data does not indicate vegetation communities that form on deep peat. However, peat depths were not taken and so this aspect of ground truthing is not available currently for these polygons
Field Surveys were carried out on site in September 2019 and August 2020 and corrected to OSNI Orthophotography by desk based study.
The habitat map was surveyed in the field at 1:20,000 and corrected in the office to 1:1,000 scale and mapped to Phase 1, EUNIS and Annex 1 post-survey by reference to the NVC classifications, where appropriate. As a general rule, peat depths were not measured.
Site visits were conducted by NIEA post-map production to ground truth a proportion of the mapping.
It is intended that this map will be reviewed as required. This version was completed on 23 December 2022.
For more information on Annex 1 codes in the UK please see the following website - https://sac.jncc.gov.uk/habitat/
Brief descriptions of the vegetation types, as found during the NVC survey of Teal Lough, are detailed below -
W4 Betula pubescens-Molinia caerulea woodland
This is a small area of scrubby grey willow mixed with Molinia caerulea on wet, level ground where the bog adjoins the SW edge of the pond near the NE edge of the site.
W23 Ulex europaeus-Rubus fruticosus agg scrub
One very small patch of gorse scrub at the SW edge of the site.
M2 Sphagnum cuspidatum-S. fallax bog pool community
Small pools of shallow water, with Sphagnum papillosum, S. cuspidatum, S. medium, Rhynchospora alba, Narthecium ossifragum, Menyanthes trifoliata, Drosera anglica, D. rotundifolia, Erica tetralix and Vaccinium oxycoccus. Scattered widely and commonly across the wetter areas of bog. The flora of these bog pools fits well into the M2a Rhynchospora alba sub-community.
M6 Carex echinata-Sphagnum fallax/denticulatum mire
This is rush mire with tall swards of Juncus effusus (M6c) or, less commonly, J. acutiflorus. Beneath the rushes are carpets of mosses including Sphagnum species and Polytrichum commune. Small areas of M6 are scattered around the edges of the site, mostly in close association with M25 Molinia mire.
M15 Trichophorum germanicum-Erica tetralix wet heath
The M15 here is species-poor wet heath consisting mainly of medium height to tall Molinia caerulea and Calluna vulgaris. Among these two species are smaller amounts of other vascular species such as Erica tetralix, Potentilla erecta and Juncus effusus, and variably extensive carpets of mosses including Hypnum jutlandicum, Pleurozium schreberi and Polytrichum commune. This flora places the vegetation in the Typical sub-community M15b. Small patches of M15 are scattered widely at this site, mostly in mosaics with M25 Molinia mire on ground that is very gently sloping and not as wet as the nearby bog. An asterisk following the NVC code indicates occurrence on deep peat, this M15 being probably derived from previous bog vegetation.
M17 Trichophorum germanicum-Eriophorum vaginatum blanket mire
This is bog vegetation similar to the M18 described below but with a general lack of Vaccinium oxycoccos and Sphagnum medium. It also has less Sphagnum than in most of the M18. Small areas of M17 were found toward the edges of the main area of bog. They merge into the M18; the separation of the two communities is not well marked. Some of the M17 has much Racomitrium lanuginosum and can be assigned to the Cladonia sub-community M17b, but some has little or no Racomitrium or Cladonia and does not fit well into any M17 sub-community and is labelled M17X.
M18 Erica tetralix-Sphagnum papillosum raised & blanket mire
This is bog vegetation consisting mainly of mixtures of Calluna vulgaris, Erica tetralix, Molinia caerulea, Eriophorum angustifolium, E. vaginatum and extensive carpets of the mosses Sphagnum capillifolium, S. papillosum, S. medium, S. fallax, S. cuspidatum and Hypnum jutlandicum. Other species include Trichophorum germanicum, Nartheciium ossifragum, Drosera rotundifolia, D. anglica, Vaccinium myrtillus, V. oxycoccos and Empetrum nigrum. Mosses are sparse to abundant and generally include Sphagnum capillifolium. M18 is the most extensive bog NVC community at this site, occurring on level to surfaces of deep, wet peat. Most of it belongs in the M18a Sphagnum magellanicum-Andromeda polifolia sub-community, but slightly drier areas, mostly toward the edges of the large areas of M18, have more Calluna, Empetrum and Eriophorum vaginatum, and less Sphagnum: these belong in the M18b Empetrum nigrum nigrum-Cladonia sub-community.
M19 Calluna vulgaris-Eriophorum vaginatum blanket mire
This vegetation occurs in small extent on some of the drier, more marginal parts of the bog at this site. Calluna vulgaris and Eriophorum vaginatum are dominant, with other species found in the adjacent M18 very much reduced in quantity. The presence of Erica tetralix places it in the M19a E. tetralix sub-community.
M20 Eriophorum vaginatum bog
This is bog vegetation in which tussocks of Eriophorum vaginatum are abundant to dominant and dwarf shrubs are no more than very sparse. There can be a little Calluna vulgaris, Erica tetralix or Vaccinium myrtillus. Other species typically include Molinia caerulea, Deschampsia flexuosa and mosses such as Sphagnum fallax, S. capillifolium, Hypnum jutlandicum, Pleurozium schreberi and Polytrichum commune. Patches of M20 are locally common in some of the marginal parts of the bog at this site. This M20 appears likely to have been derived, by grazing, from previous bog vegetation of a more heathy nature.
M25 Molinia caerulea-Potentilla erecta mire
This vegetation, identified by the distinctive dominance of tussocks of Molinia caerulea, is widespread and locally extensive at this site. It typically occupies ground that is a little drier than the adjacent M18 bog (for example some slightly raised areas forming a band running south from the pond in the NE) but also occurs – with M6 rush mire – on wetter and more level ground and in very shallow depressions within and around the edges of the bog. Among the Molinia is a species-poor flora including Potentilla erecta, Calluna vulgaris, Erica tetralix and mosses such as Hypnum jutlandicum, Pleurozium schreberi and Polytrichum commune. Locally there is also a scatter of Chamaenerion angustifolium. This M25 is classed as the M25a sub-community and might be derived, possibly by grazing, from previous bog or wet heath vegetation. An asterisk following the NVC code indicates occurrence on deep peat where it appears to be derived from previous bog vegetation.
Je Juncus effusus acid grassland community
In this vegetation tall tussocks of the rush Juncus effusus are abundant, growing among a lower layer of an acid grassland type with species such as Agrostis capillaris, Holcus lanatus, Anthoxanthum odoratum, Potentilla erecta and Galium saxatile. The vegetation does not fit into any NVC community – hence the non-NVC code. It occurs on damp ground in a few places around the edges of the site: some of these places appear to have been grazed more heavily than most parts of the site.
OW = open water
This refers to the pond in the north-east and a smaller pond in the west.