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These areas were cut-over by hand for domestic fuel under turbary arrangements,
as was common throughout Ireland during the last few hundred years (Van
Eck, 1984). They are now little used and have been allowed to revert
to a semi-natural vegetation cover. Vegetation regeneration of this type
has been documented in Ireland by White (1930) among others and it is
currently being researched at the University of Ulster
at Coleraine.
In recent years some areas have been re-worked by extrusion 'sausage'
machines. These areas are small relative to the area of the whole site
and overall disturbance by extrusion machine cutting can be said to be
minimal. A range of different vegetation types in various stages of development
were found. Most notable were the mature cuttings which had developed
vegetation communities closely resembling those which are found on intact
raised bogs.
All the species which were found on the cupola were also found in the
cuttings. An additional 21 raised bog species were found in the cut-away
areas. Most notable amongst these was Vaccinium oxycoccus which is normally
only found growing across Sphagnum hummocks in the pool systems of intact
raised bogs. It was found on only 22 sites in Northern Ireland by Leach
and Corbett (1987).
n this case it was found in cuttings which had developed
a high cover of Sphagnum magellanicum and other hummock building Sphagnum
species. Cuttings were also found with assemblages of species normally
found in the wetter parts of the pool areas of intact raised bogs.
These included Sphagnum recurvum and cuspidatum and Narthecium ossifragum.
These cuttings are acting as refuge for the flora and fauna formerly
found on the bog surface. They are a rich and diverse source of species
which would be available for the regeneration of the damaged bog surface.
The northern edge of the bog has had little peat cutting compared to
the southern edge. The margin vegetation in the south is of ombnrotrophic
peat cutting communities. In the north however, adjacent to the Glenullin
Water it is very different, with a community of fen species existing
along much of the margin.
This community closely resembles the lagg fen communities formerly found
on the margins of intact raised bogs but now very rare in Ireland. Only
12 bogs in Northern Ireland were recorded as having any lagg fen remaining
by Leach and Corbett 1987). Forty one species typically found in transitional
bog/fen areas were recorded along the northern edge of Glenullin Bog.
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