The Reserve Plan Review for Glasdrum Wood National Nature Reserve 2005-2011
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The Reserve Plan Review for Glasdrum Wood National Nature Reserve 2005-2011 For further information on Glasdrum Wood NNR please contact: The Reserve Manager Scottish Natural Heritage 1 Kilmory Industrial Estate Kilmory, Lochgilphead Argyll PA31 8RR Tel: 01546 603611 Fax: 01546 602298 The Reserve Plan Review for Glasdrum Wood National Nature Reserve 2005-2011 The Reserve Plan Review for Glasdrum National Nature Reserve 2005-2011 Foreword Glasdrum Wood National Nature Reserve (169ha) is on the west coast of Scotland, 27 km north of Oban. This native woodland, mostly ash and oak, occupies the lower slopes of Beinn Churalain, a mountain rising steeply from the sea at Loch Creran. The wood is exceptionally rich in oceanic lichens and bryophytes. It is one of Scotland’s best sites for butterflies, especially noted for the population of chequered skipper. Glasdrum is one of more than forty-five National Nature Reserves (NNRs) in Scotland. Scotland’s NNRs are special places where some of the best examples of Scotland’s wildlife are managed. Every NNR is carefully managed both for nature and for people, giving visitors the opportunity to experience our rich natural heritage. In 2004, we carried out a public consultation on our future proposals for the management of Glasdrum Wood NNR. Your feedback from the consultation informed the completion of the Reserve Plan 2005 – 2011, which set out our management for the Reserve during that period. We have now come to the end of that plan and have started to think about the future direction of our management. This report reviews our achievements and progress against the management objectives set out in the Reserve Plan for Glasdrum Wood NNR 2005 - 2011. Address: Scottish Natural Heritage, 1 Kilmory Industrial Estate, Kilmory, Lochgilphead, Argyll, PA31 8RR Tel: 01546 603611 Fax: 01546 602298 2 The Reserve Plan Review for Glasdrum Wood National Nature Reserve 2005-2011 Contents Contents..................................................................................................................... 3 1 Our Vision for Glasdrum Wood NNR................................................................... 4 2 Natural Heritage Management ............................................................................ 4 2 Natural Heritage Management ............................................................................ 5 3 Management for People.................................................................................... 11 4 Property Management....................................................................................... 14 5 Summary........................................................................................................... 15 6 The way ahead.................................................................................................. 16 3 The Reserve Plan Review for Glasdrum Wood National Nature Reserve 2005-2011 1 Our Vision for Glasdrum Wood NNR Glasdrum Wood National Nature Reserve is special; the aim is to keep it that way. The Reserve Plan 2005-2011 sets out our vision for the Reserve describing how we would like the Reserve to be in 2025. The management we have carried out over the past 6 years has been framed with this vision in mind. Glasdrum Wood in 2025 The Vision The ancient native woodland, with the internationally important sessile oak and upland ash woodland communities, is thriving. The wood has a rich lichen and bryophyte flora. There are healthy populations of chequered skipper and pearl- bordered fritillary butterflies. The habitat is suitable for otters. The local community is actively engaged in the management of the Reserve, and visitors can appreciate the wildlife in the wood. Several researchers are developing work on the butterflies and vegetation to demonstrate what is needed to sustain viable populations and communities of national importance. Glasdrum Wood National Nature Reserve 4 The Reserve Plan Review for Glasdrum Wood National Nature Reserve 2005-2011 2 Natural Heritage Management Objective 1: To maintain the important woodland communities and associated flora and fauna in Glasdrum Wood. Projects delivered under Objective 1 during life of plan: 1.1 Maintain fences to exclude livestock Achieved 1.2 Protect sapling ash trees from browsing in open glades Achieved 1.3 Maintain exclosures and tree guards Achieved 1.4 Remove non-native trees and shrubs Achieved 1.5 Monitor woodland condition in 2006 as part of national Site Achieved Condition Monitoring programme 1.6 Commission lichen survey to inform future management and Achieved monitoring 1.7 Commission bryophyte survey to inform future management Achieved and monitoring 1.8 Monitor bryophytes and lichens in 2009 and 2010 respectively Achieved as part of national Site Condition Monitoring programme 1.9 Establish fixed point photographic monitoring Partially achieved 1.10 Develop deer monitoring programme in collaboration with Not neighbours, mainly Forestry Commission for Scotland. achieved. Objective evaluation: The projects delivered have continued to ensure that the woodland feature is maintained in favourable condition on the Reserve. Non-native trees and shrubs have been almost eliminated from the Reserve with the removal of the conifers in 2005/06 and, a programme of removal and treatment of rhododendron and azalea during 2005/06, 2006/07 and 2007/08. We now maintain a watching brief for seedling removal. Japanese knotweed has also been treated annually and will continue to remain a management requirement. Site Condition Monitoring and casual observations have shown/indicated that natural regeneration is occurring on the Reserve within the required limits. We have therefore been reasonably content that deer browsing has not been limiting regeneration. Never-the-less, confirmation that this is the case and also an indication of what deer impact there is on the woodland remains a missing part of the management puzzle. Recent closer examination (summer, 2012) has indicated that there is deer browsing pressure at certain locations within the woodland that is preventing young trees getting beyond sapling size. We are now in the process of establishing a deer management plan for the Reserve in conjunction with our neighbours, and a baseline herbivore impact assessment which we will continue to monitor every other year as part of the next plan. 5 The Reserve Plan Review for Glasdrum Wood National Nature Reserve 2005-2011 Two highly significant surveys on lichen and bryophytes were carried out over the Reserve during the course of the plan. The lichen survey confirmed the international importance of Glasdrum Wood for lichens. Specific locations and habitat requirements for nationally rare species were identified with recommendations for habitat enhancement management techniques to ensure we maintain these importance populations. This work has considerably improved our knowledge and understanding of the habitat requirements for these species. We have now established fixed point photography (FPP’s) plots to monitor scrub encroachment, that can be detrimental to lichens, in areas important to lichen. Scrub clearance in targeted areas has also improved habitat conditions for both the lichen and bryophyte assemblages - both of which are now in favourable condition on the Reserve (the lichen feature however remains in unfavourable condition on the wider SSSI). Getting the balance right between natural regeneration for the woodland and yet maintaining niches for the lichen and bryophytes will be the main thrust for our future management of the Reserve. 6 The Reserve Plan Review for Glasdrum Wood National Nature Reserve 2005-2011 Objective 2: To maintain open areas in the wood for important butterfly populations, notably chequered skipper and pearl-bordered fritillary. Projects delivered during life of plan: 2.1 Maintain corridors of open habitat linking core breeding and Achieved nectaring areas - control scrub and bracken. 2.2 Rotational clearance of scrub and bracken along the Achieved electricity wayleave in conjunction with Scottish and Southern Energy including restoration to its original width. 2.3 Record and map habitat management specific to butterflies Achieved for future reference. 2.4 Monitor and map the extent and condition of core butterfly Achieved areas (woodland clearings), including the assessment of scrub and bracken invasion and abundance of larval food plants and nectar sources by fixed-point photography and quadrats and manage as necessary. 2.5 Monitor population numbers and habitat as part of a Achieved national Butterfly Monitoring Scheme 2.6 Continue research into habitat requirements particularly in Achieved relation to active management of wayleave and bracken glades 2.7 Coordinate management, monitoring and research across Achieved entire Glen Creran Woods cSAC 2.8 Monitor mountain ringlet population by timed counts and Achieved assess habitat requirements Objective evaluation: The mixture of rotation clearance of scrub and maintaining the wayleave corridor has continued to provide ideal habitat conditions for chequered skipper and pearl bordered fritillary with chequered skipper numbers increasing and pearl bordered fritillary numbers remaining stable. Both butterfly interests are in favourable condition on the Reserve. Our long-term monitoring of butterflies and moths has also provided some interesting results, recording the first barred tooth-striped in 2004, first ringlet butterfly in 2005, and first square-spotted clay and Anania funebris (a pyralid moth)