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Integrating red squirrel (Sciurus vulgaris) habitat requirements with the management of pathogenic tree disease in commercial forests in the UK. / Shuttleworth, Craig; Lurz, P.W.W.; Geddes, N et al.
In: Forest Ecology and Management, Vol. 279, 01.09.2012, p. 167-175.

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Shuttleworth C, Lurz PWW, Geddes N, Brown J. Integrating red squirrel (Sciurus vulgaris) habitat requirements with the management of pathogenic tree disease in commercial forests in the UK. Forest Ecology and Management. 2012 Sept 1;279:167-175. Epub 2012 Jun 27.

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TY - JOUR

T1 - Integrating red squirrel (Sciurus vulgaris) habitat requirements with the management of pathogenic tree disease in commercial forests in the UK

AU - Shuttleworth, Craig

AU - Lurz, P.W.W.

AU - Geddes, N

AU - Brown, J

PY - 2012/9/1

Y1 - 2012/9/1

N2 - 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 management in designated stronghold areas in England and Scotland is therefore a key strategy for red squirrel conservation. However, the threat of pathogenic tree disease is already leading to changes in forest composition through modified thinning and planting regimes. This has the potential of not only altering habitat suitability for red squirrels but also the competitive ability of grey squirrels. For example, Phytophthora ramorum can severely affect Japanese larch, whilst other common crop species such as Corsican pine, Scots pine and lodgepole pine are all vulnerable to Red Band Needle Blight (Dothistroma septosporum); factors driving significant changes in future forest composition. In this paper we wish to highlight the serious impact of these diseases on established red squirrel management options. We examine proactive and reactive management in three case studies which are attempting to integrate red squirrel habitat requirements into evolving tree disease management protocols. We recommend specific tree species that are both less susceptible to infections and offer potential alternative seed sources for red squirrels, whilst stressing the need for research into grey squirrel exploitation of such crops. We also highlight how the presence of grey squirrels is limiting the use of hazel and other broadleaved species in this context. Finally, a flexible red squirrel management protocol is presented to assist forest managers to integrate red squirrel conservation with the threat posed by Red Band Needle Blight and P. ramorum.

AB - 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 management in designated stronghold areas in England and Scotland is therefore a key strategy for red squirrel conservation. However, the threat of pathogenic tree disease is already leading to changes in forest composition through modified thinning and planting regimes. This has the potential of not only altering habitat suitability for red squirrels but also the competitive ability of grey squirrels. For example, Phytophthora ramorum can severely affect Japanese larch, whilst other common crop species such as Corsican pine, Scots pine and lodgepole pine are all vulnerable to Red Band Needle Blight (Dothistroma septosporum); factors driving significant changes in future forest composition. In this paper we wish to highlight the serious impact of these diseases on established red squirrel management options. We examine proactive and reactive management in three case studies which are attempting to integrate red squirrel habitat requirements into evolving tree disease management protocols. We recommend specific tree species that are both less susceptible to infections and offer potential alternative seed sources for red squirrels, whilst stressing the need for research into grey squirrel exploitation of such crops. We also highlight how the presence of grey squirrels is limiting the use of hazel and other broadleaved species in this context. Finally, a flexible red squirrel management protocol is presented to assist forest managers to integrate red squirrel conservation with the threat posed by Red Band Needle Blight and P. ramorum.

M3 - Article

VL - 279

SP - 167

EP - 175

JO - Forest Ecology and Management

JF - Forest Ecology and Management

SN - 0378-1127

ER -