Guidance on contents and use of the Conservation Designations
The downloadable spreadsheet contains several
worksheets as briefly described below. Please follow the
links for more detail about the contents and use of each
Designations Spreadsheet last updated
24 November 2016 - See updates>>>
The "Master List" is, perhaps, the most
important of the worksheets and is, in effect, a collation of
different lists combined into the same data structure, with each
row being distinguished by a unique combination of "taxa" and
designation. The term "designation" refers to any "badge" given to
a species whether or not it has a legal standing. A taxon with
ten designations will be represented by ten rows on the Master
List. Note that the generic term "taxa" is in this context a more
strictly accurate term than "species" because some of the listed
entities are ranked as being either above or below the "species"
level. Find out more about the 'Master list'.
Summary for each taxon
This is a more compact presentation of the key
information in the Master List. Each taxon is shown on a single
row, with different columns for the reporting categories. Thus a
taxon with ten designations will be represented by just one row on
The version of the spreedsheet published in April 2014
has included taxa assessed as "Least Concern" and "Not
Evaluated" for Red Lists based on the 2001 IUCN guidelines. A new
spreadsheet has been made availabe in August 2014 removing an
incorrect designation included in the April version.
This list is most helpful if you want to quickly find all the
designations associated with a particular taxon. Find out more
about the 'Summary for each taxon' worksheet.
Lists by taxon group
You can use this sheet to get simple lists of
all taxa in a particular taxon group that have a certain
designation(s), for example, all mosses that are nationally rare or
nationally scare. Find out more about 'Lists by taxon
This sheet shows cases where more than one
designated taxa have been amalgamated either by taxonomic revision
or by a systematic naming process into one single recommended
current name on the NBN's UK Species Inventory. This list
could prove useful for answering questions such as "Why is
species x no longer on the Master List?" Find out
more about 'Complex synonyms'.
Updates to spreadsheet
This sheet includes details of updates and amendments made to
spreadsheet of Conservation Designations for species.