Searle, K.; Butler, A.; Harris, C.; Purse, B.V.

Distribution maps of Arctostaphylos uva-ursi, Vaccinium myrtillus and Vaccinium vitis-idaea across Scotland as hosts for Phytophthora

These spatial layers contain the predicted occurrence and abundance of three heathland shrubs, Arctostaphylos uva-ursi, Vaccinium myrtillus and Vaccinium vitis-idaea identified as susceptible host species for Phytophthora ramorum and Phytophthora kernoviae in Scotland. The distribution models were developed from quadrat vegetation data kindly provided by Scottish Natural Heritage combined with data on climate and soil conditions as well as deer abundance and were fitted using a Bayesian Generalised Mixed Modelling approach adapted for input data on the DOMIN scale. This research was funded by the Scottish Government under research contract CR/2008/55, 'Study of the epidemiology of Phytophthora ramorum and Phytophthora kernoviae in managed gardens and heathlands in Scotland' and involved collaborators from St Andrews University, Science and Advice for Scottish Agriculture (SASA), Scottish Natural Heritage (SNH), Forestry Commission, the Food and Environment Research Agency (FERA) and the Centre for Ecology & Hydrology (CEH).

Publication date: 2016-07-07

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Supporting documentation

Format of the dataset : Shapefile

Access and use conditions

This resource is made available under the terms of the Open Government Licence

You must cite: Searle, K.; Butler, A.; Harris, C.; Purse, B.V. (2016). Distribution maps of Arctostaphylos uva-ursi, Vaccinium myrtillus and Vaccinium vitis-idaea across Scotland as hosts for Phytophthora . NERC Environmental Information Data Centre. https://doi.org/10.5285/5749df3d-000c-445e-a37f-dc0763b4d5ec

 

© Scottish Government

The following statement is also required when reusing the data: 'Contains, or is based on, information supplied by the Forestry Commission. © Crown copyright and database right [2014] Ordnance Survey [100021242]'

Where/When

Study area
Temporal extent
2012-01-01    to    2012-12-31

Provenance & quality

A logit-normal model was developed, structured as a generalized linear mixed model (GLMM) for logit-transformed proportions. An approach was adopted that would deal with overdispersion (the large number of absence records for the species), the unequal numbers of quadrats taken per NVC survey site, and the uncertainty around the true percent cover arising from the unequal size of the DOMIN class intervals - such that the true percent cover is an unobserved latent variable. The supporting documentation contains full details of the GLMM used. Adam Butler from Biomathematics and Statistics Scotland (BioSS) provided statistical advice for habitat suitability modelling.

Correspondence/contact details

Purse, B.
Centre for Ecology & Hydrology
Wallingford
OX10 8BB
Oxfordshire
enquiries@ceh.ac.uk

Authors

Searle, K.
Centre for Ecology & Hydrology
Butler, A.
BIOSS
Harris, C.
University of St Andrews
Purse, B.V.
Centre for Ecology & Hydrology

Other contacts

Custodian
Environmental Information Data Centre
Publisher
NERC Environmental Information Data Centre

Spatial

Spatial representation type
Spatial reference system
OSGB 1936 / British National Grid

Tags

Topic categories
Environment
INSPIRE Theme
Habitats and Biotopes
Keywords
Arctostaphylos uva-ursi bearberry,  blue whortleberry,  common bilberry,  lingonberry,  Modelling Phytophthora kernoviae Phytophthora ramorum Vaccinium myrtillus Vaccinium vitis-idaea winberry