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Picea sitchensis; Pinus sylvestris; administrative management; climate; drought; drought tolerance; forest ecology; long term experiments; mortality; spring; trees; Scotland
Abstract:
... Understanding how we can increase the resilience of forest systems to future extreme drought events is increasingly important as these events become more frequent and intense. Diversifying production forests using intimate mixtures of trees with complementary functional traits is considered as one promising silvicultural approach that may increase drought resilience. However, the direction and mag ...
Sciurus vulgaris; conifers; ecosystem management; forest ecosystems; forests; home range; international law; population density; protected species; squirrels; timber production; Scotland
Abstract:
... Reconciliation of timber production and wildlife conservation is a major challenge in forest ecosystem management. For some protected species impacts of forest management are well documented, but for others such as the Eurasian red squirrel (Sciurus vulgaris) (hereafter ‘red squirrel’) they are still largely unknown. In Scotland, red squirrels are protected under national and international law and ...
... Our study was driven by objections to afforesting the sensitive peaty headwaters of the River Halladale in Northern Scotland on the grounds that this would damage water quality and the local salmon fishery. Approval was given in 1995 for the planting to proceed on condition that monitoring was carried out to assess the effects of forest establishment and growth on water quality and ecology. The lo ...
... Monoculture plantation woodlands are particularly vulnerable to disturbance events as species uniformity makes such stands highly susceptible to pests and diseases. Red band needle blight (caused by the fungus Dothistroma septosporum) is a disease which has a particularly significant economic impact on pine plantation forests worldwide, affecting diameter and height growth. However, monitoring its ...
... The oomycete plant pathogen, Phytophthora austrocedri, is an aggressive killer of cypress trees causing severe mortality of Chilean cedar (Austrocedrus chilensis) in Argentina since the 1940 s and now of common juniper (Juniperus communis s.l.) in the UK. Rapid mortality of key UK juniper populations was first observed in the early 2000 s. The causal agent of mortality was confirmed as P. austroce ...
... Moths are a vital ecosystem component and are currently undergoing extensive and severe declines across multiple species, partly attributed to habitat alteration. Although most remaining forest cover in Europe consists of intensively managed plantation woodlands, no studies have examined the influence of management practices on moth communities within plantations. Here, we aimed to determine: (1) ...
Pinus sylvestris; birds; breeding; canopy; coniferous forests; developmental stages; ecosystem services; silvicultural systems; snags; species diversity; stand management; stand structure; trees; understory; Scotland
Abstract:
... Continuous cover forestry (CCF) systems are increasingly advocated for stand management, with biodiversity among the ecosystem services perceived to benefit. However, long term (>100years) influences of such silvicultural systems on biodiversity in managed forests are poorly understood. Timed point counts in Scots pine forests in Scotland were used to quantify associations between species richness ...
Phytophthora ramorum; canopy; disease severity; forest stands; forests; fungal diseases of plants; insect pests; landscapes; lidar; models; plant pathogenic fungi; statistical analysis; surveys; tree crown; trees; England; Scotland; Wales
Abstract:
... The invasive phytopathogen Phytophthora ramorum has caused extensive infection of larch forest across areas of the UK, particularly in Southwest England, South Wales and Southwest Scotland. At present, landscape level assessment of the disease in these areas is conducted manually by tree health surveyors during helicopter surveys. Airborne laser scanning (ALS), also known as LiDAR, has previously ...
... Forest management practices that remove trees from stands can promote substantial changes in the distribution of genetic diversity within and among populations at multiple spatial scales. In small and isolated populations, elevated inbreeding levels might reduce fitness of subsequent generations and threaten forest resilience in the long term. Comparing fine-scale spatial genetic structure (SGS) b ...
attitudes and opinions; decision making; land use; motivation; private lands; woodlands; Scotland
Abstract:
... The Scottish Government has clearly stated its intention to increase woodland cover from 18% towards 25% of land area by 2050. This will rely heavily on publicly funded grant schemes to encourage woodland creation on private land. However, at present required rates of woodland expansion are not being met. Moreover, the benefits of new woodland are not guaranteed and depend on woodland type, spatia ...
... In Scots pine (Pinus sylvestris) forests the composition of the ground flora can be affected by the amount of light reaching the forest floor, influencing the balance between the three common ericaceous shrubs bilberry (Vaccinium myrtillus), cowberry (Vacciniumvitis-idaea) and heather (Calluna vulgaris). A pinewood ground flora with more than 20% bilberry cover is considered good habitat for caper ...
... Understanding the habitat requirements of the Scottish crossbill Loxia scotica is fundamental to the conservation of this endemic bird which, like other crossbills, specialises in feeding on conifer seeds extracted from cones. Habitat associations of Scottish crossbills and common crossbills Loxia curvirostra were determined from a systematic survey of conifer woodland within the range of the Scot ...
... Increasing forest cover has been the policy of various countries in recent decades. The Scottish government aims to increase national forest cover from 18% to 25% by 2050. Mid-altitude upland areas above farmland and below the natural tree line will be targeted for planting, which could impact black grouse Tetrao tetrix, a species of conservation concern which is most abundant in this zone. We use ...
... The native red squirrel is being replaced by the introduced North American eastern grey squirrel in the UK. Here, Sitka spruce dominated plantations containing a larch and pine element offer the best long-term opportunity to conserve the red squirrel because they can sustain populations in a forest environment where the competitive advantage of the grey squirrel is reduced. Forest habitat manageme ...
... Environment-driven genetic differentiation among populations is a common feature among forest trees, and an understanding of how populations have adapted to their home site conditions is essential for management and conservation practices. In Scotland, 84 native Scots pine (Pinus sylvestris L.) woodlands are recognised by the Forestry Commission and they occupy highly diverse environments from the ...
... The study aim was to determine whether enhanced dry deposition of acidic atmospheric pollutants by broadleaf woodland expansion could increase the potential for acidification of surface waters in acid-sensitive areas. Dry sulphur (S) and nitrogen (N) deposition was modelled with the Fine Resolution Atmospheric Multi-pollutant Exchange (FRAME) model using a roughness length value calculated specifi ...
tree growth; growth rings; forest trees; tree age; developmental stages; air temperature; highlands; climatic factors; forest management; Pinus sylvestris; woodlands; width; tree mortality; Scotland
Abstract:
... The main aim of this project was to explore whether the pine trees in Glen Affric (GAF), one of the more extensive pine woodlands in the northern Scottish Highlands, are, on average, reaching a senescent stage which could ultimately be detrimental to the sustainability of the pine woodland in this region under present management conditions. This aim was realized by (1) comparing the mean stand age ...