Identification info

Metadata Language

English (en)

Character set

utf8

Dataset Reference Date ()

2016-08-31

Dataset Reference Date ()

2016-08-12

Identifier

https://catalogue.ceh.ac.uk/id/6c535793-034d-4c4f-8a00-497315e7d689

Identifier

doi: / 10.5285/6c535793-034d-4c4f-8a00-497315e7d689

Other citation details

Dyer, R., Oliver, T. (2016). Estimated species richness data used in study of UK Ecological status. NERC Environmental Information Data Centre 10.5285/6c535793-034d-4c4f-8a00-497315e7d689

Maintenance and update frequency

notPlanned

GEMET - INSPIRE themes, version 1.0 ()

• Habitats and Biotopes

Keywords

• Biodiversity
• Bees
• Birds
• Bryophytes
• Butterflies
• Carabidae
• Hoverflies
• Isopoda
• Ladybirds
• Moths
• Orthoptera
• Vascular plants

Limitations on Public Access

otherRestrictions

Other constraints

no limitations

Use constraints

otherRestrictions

Other constraints

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

Use constraints

otherRestrictions

Other constraints

© UK Centre for Ecology & Hydrology

Use constraints

otherRestrictions

Other constraints

If you reuse this data, you should cite: Dyer, R., Oliver, T. (2016). Estimated species richness data used in study of UK Ecological status. NERC Environmental Information Data Centre https://doi.org/10.5285/6c535793-034d-4c4f-8a00-497315e7d689

Spatial representation type

textTable

Topic category

• Biota

Begin date

1970-01-01

End date

2013-12-31

 

Code

OSGB 1936 / British National Grid

Distribution Information

Data format

• Comma-separated values (CSV) ()

 

Quality Scope

dataset

Other

dataset

Statement

UK species occurrence data were collated from the Biological Records Centre (BRC). Data were gathered for 11 taxonomic groups (Columns 2 to 12; Bees, Birds, Bryophytes, Butterflies, Carabidae, Hoverflies, Isopoda, Ladybirds, Moths, Grasshopper and Crickets, and Vascular plants) at the 10km2 scale (hectad; column 1) over two separate time periods: 1970 to 1990 and 2000 to 2013 (i.e. there are two separate datasets, one for each time period). Bird species occurrence data for the breeding birds of the UK were acquired from the British Trust for Ornithology (BTO). We used data corresponding to the two time periods defined above, taken from the bird atlases of 1976 and 2001-2011 respectively. Separate analyses were undertaken for both time periods within each taxonomic group. For each hectad we compiled a species list and calculated species richness. We then calculated the estimated species richness by applying a recently developed method (Frescalo) to account for the variation in recorder effort within different hectads. The Frescalo program estimates species richness at a given location according to the set of species occurring in a neighbourhood of the 100 most similar hectads from the 200 nearest hectads. The proportion of a suite of common benchmark species from this neighbourhood list that have been recorded in the focal hectad is used to assess the recording intensity of this focal hectad, and this is used to scale the 'raw' observed species richness towards the neighbourhood maximum accordingly. We ran Frescalo using the Sparta package in the program R. Neighbourhoods were defined according to biological similarity using either vascular plant data or land cover type: all datasets were analysed using the vascular plant weights files embedded within the Frescalo program, with the exception of the vascular plants dataset which for which biological similarity between hectads was defined using land cover type in order to avoid circularity. For this we used the 2007 ITE Land Cover Map.

Metadata

File identifier

6c535793-034d-4c4f-8a00-497315e7d689 XML

Metadata Language

English (en)

Character set

ISO/IEC 8859-1 (also known as Latin 1)

Resource type

dataset

Hierarchy level name

dataset

Metadata Date

2023-02-09T11:07:58

Metadata standard name

UK GEMINI

Metadata standard version

2.3