Hampshire bryophytes

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Isle of Wight 5km distribution maps

These maps show the distribution of the bryophyte taxa recorded in the Isle of Wight (VC10), plotted at 5km square (quadrant) resolution. The maps are derived from existing records in the BBS/BRC database and those recently submitted up to September 2019. Names follow Blockeel et al. (2021). A new checklist of the bryophytes of Britain and Ireland, Journal of Bryology 43:1–51. Taxa have mostly been grouped at the species level, but some well defined subspecies and varieties have been mapped separately. Some records for historically recorded taxa that now represent two or more well defined species have usually been excluded from the analysis. Please contact me if you notice any errors. See this page for a table of name changes affecting Hampshire and Isle of Wight taxa.

The coloured shading on the maps shows the date class in which the taxon was most recently recorded in each quadrant (hectad resolution records won't be shown, so at least one map appears completly blank). The mapped area all falls within Ordnance Survey 100km grid square SZ. The first three date classes follow those used in the most recent published atlas, except that the first class (grey shade) indicates records made before 1970 rather than before 1950 (1970 is now the cut-off date for vice-county records becoming bracketed in the census catalogue). Records added after the publication of the atlas, i.e. from 2014 onwards, are indicated by the yellow shade.

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I would like to thank all the people who have sent in records and Oli Pescott for his assistance in supplying and managing the datasets on behalf of the Biological Records Centre and the British Bryological Society. The BBS Atlas dataset is now on the NBN Gateway but newer records may not be up to date. The maps were generated from QGIS using the Tom.bio Biological Recording plugin developed for the Field Studies Council.

Last updated by John Norton, October 2021