Allendale Moors SSSI - WALLACE (055)
Staff member responsible: CLAIRE FURNESS
Unit Id: 1020260
Unit area (ha): 99.5764
Unit Status: Live Gridref: NY 756 495
Main habitat: BOGS - Upland
Condition and Comments (click for history): Unfavourable - Recovering Assessed by: ROGERSON, (JILLIAN)
Last assessed: 09/09/2010 Last assessment field visit: 09/09/2010
ISA Survey: View Surveys
Date of last site check: Last CSM assessment: 09/09/2010
Estimated year unit will go Favourable: Confidence in estimate:
Comment: This unit continues to provide excellent habitat for breeding upland birds, although as noted on the reports for units 56, 57,58, 61 also assessed around the same time, the condition assessment was undertaken outside of the bird breeding season, and as such, a consideration of the breeding activity and success was not appropriate. The habitat continues to remain suitable, with tussocks of grasses, and dwarf shrubs and an understorey of sphagnum and mosses throughout the sward. An assessment of this unit against the criteria in Table 3f suggests favourable condition as habitat suitable for upland breeding birds ? all measures of favourable condition were met across the unit as a whole. Blanket Bog assessment was carried out on most of this unit with the habitat showing continued recovery since the last assessment. Species composition consisted of Calluna vulgaris, Eriophorum vaginatum - Dominant. Empetrum nigrum, Eriophorum angustifolium, Sphagnum papillosum ? Abundant. Erica tetralix, Pleurocarpus mosses ? Frequent. Vaccinium myrtillus, Narthecium ossifragum, Drosera spp., S. Fallax ? Rare. Each quadrat had a minimum of 6 species with 98% of vegetation cover made up of 3 or more indicators. A large proportion of the cover was made up of Erioph vag or Trich cesp or ericaceous spp at an average of 56% cover. Dwarf shrubs were recorded at each quadrat with an average 58% dwarf shrub cover at each stop. The age range was understandably limited across the site, given the history, with Heather height recorded at an average height of 8cm in predominantly pioneer stage. No burning present and no overgrazing recorded. Continued management through the HLS should maintain the recovery of the site although the high cover of cotton grasses and polytrichum could affect the ongoing ability of the heather to increase in cover and age range.
Number of adverse condition reasons: 0
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