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UK Biodiversity Indicators 2021. Indicator C4a – Status of UK priority species (Relative abundance) 2021

Corporate UK Biodiversity


These documents support state indicator C4a – Status of UK priority species (Relative abundance). The documents include a datasheet and technical background document.

This indicator shows changes in the relative abundance of priority species in the UK for which data are available. Priority species are defined as those appearing on one or more of the biodiversity lists of each UK country (Natural Environmental and Rural Communities Act 2006 – Section 41 (England), Environment (Wales) Act 2016 section 7, Northern Ireland Priority Species List, Scottish Biodiversity List). The combined list contains 2,890 species in total. The priority species were highlighted as being of conservation concern for a variety of reasons, including rapid decline in some of their populations. The indicator will increase when the population of priority species grows on average and decrease when the population declines.

This indicator should be read in conjunction with C4b which provides data on those UK priority species for which distribution data are available.

These resources may not be fully accessible for all users. If you need a copy of any of these resources in a different or more accessible format, please get in touch.

Resource type Publication

Topic category Environment

Reference date 2021·10·20

Department for Environment, Food and Rural Affairs, UK. 2021. UK Biodiversity Indicators 2021.

The UK Biodiversity Indicators were first published in 2007. They were created to provide a measure for reporting on the UK’s progress towards meeting international biodiversity goals and targets. The indicators were comprehensively reviewed during 2011 and 2012 to ensure they continued to be based on the most robust and reliable available data, and remained relevant to the new international goals and targets developed in 2010 and 2011.

Responsible organisation
Communications, JNCC distributor

Limitations on public access No limitations

Use constraints Released under the Open Government Licence v3.0. Attribution statement "Contains public sector information from Defra, licenced under the Open Government Licence v3.0"

Metadata date 2021·10·20

Metadata point of contact
Communications, JNCC

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