This dataset consists of flower density values of common British plant species. The data were collected during field surveys taking place from February to October in 2011 and 2012. The majority of field sites were located in the south of England. The data were collected under a project named 'Agriland' ( Linking agriculture and land use change to pollinator populations) based at the University of Bristol, as part of the UK Insect Pollinators Initiative. The Insect Pollinators Initiative (IPI) was funded by Biotechnology and Biological Sciences Research Council (BBSRC), Natural Environment Research Council (NERC), Department for Environment, Food and Rural Affairs (Defra), the Scottish Government and the Wellcome Trust, under the auspices of the Living With Environmental Change (LWEC) partnership. Full details about this dataset can be found at https://doi.org/10.5285/6c6d3844-e95a-4f84-a12e-65be4731e934

This dataset consists of nectar sugar values of common British plant species. The data were collected during field surveys taking place from February to October in 2011 and 2012. The majority of field sites were located in the south of England. The data were collected under a project named 'Agriland' ( Linking agriculture and land use change to pollinator populations) based at the University of Bristol, as part of the UK Insect Pollinators Initiative. The Insect Pollinators Initiative (IPI) was funded by Biotechnology and Biological Sciences Research Council (BBSRC), Natural Environment Research Council (NERC), Department for Environment, Food and Rural Affairs (Defra), the Scottish Government and the Wellcome Trust, under the auspices of the Living With Environmental Change (LWEC) partnership. Full details about this dataset can be found at https://doi.org/10.5285/69402002-1676-4de9-a04e-d17e827db93c

This dataset consists of plant species presence and abundance in different sizes and types of plots from 569 1km x 1km square sites surveyed across Great Britain in 1998 and 1999 (under a project named Countryside Survey 2000). Many of the plots are repeated from surveys in 1978 and 1990 and were surveyed again in 2007. General information about the plot was recorded including plot number and type as well as species presence and (usually) cover. Data were collected under the Countryside Survey long term monitoring project managed by the Centre for Ecology & Hydrology. Full details about this dataset can be found at https://doi.org/10.5285/07896bb2-7078-468c-b56d-fb8b41d47065

This dataset consists of plant species presence and abundance in different sizes and types of plots from 256 1km x 1km square sites surveyed across Great Britain in 1978. Many of the plots were repeated in 1990, 1998 and 2007. General information about the plot was recorded including plot number and type as well as species presence and (usually) cover. Data were collected under the Countryside Survey long term monitoring project managed by the Centre for Ecology & Hydrology. Full details about this dataset can be found at https://doi.org/10.5285/67bbfabb-d981-4ced-b7e7-225205de9c96

This dataset consists of the vascular plants, bryophytes and lichens recorded in plots in 103 woodland sites surveyed across Great Britain in 1971 and again over the growing seasons of 2000, 2002 and 2003 (referred to as '2001 survey'), using exactly the same field methods. Data were collected under projects managed by The Nature Conservancy (in 1971) and the Centre for Ecology & Hydrology (in 2001). Full details about this dataset can be found at https://doi.org/10.5285/2d023ce9-6dbe-4b4f-a0cd-34768e1455ae

This data set comprises plant species, habitat and land cover types, and major biota present, collected during an ecological survey of marginal uplands in the English county of Cumbria, using standardised survey methods. The survey was undertaken by the Institute of Terrestrial Ecology (a forerunner of the Centre for Ecology & Hydrology) in 1978 within a stratified random set of sites. In total, up to 262 plots were surveyed from within 52 x 1km squares. Full details about this dataset can be found at https://doi.org/10.5285/a4f2d52b-1515-434e-bfc3-83b3a53be1c5

This dataset consists of plant species presence and abundance in different sizes and types of plots from 508 1km x 1km square sites surveyed across Great Britain in 1990. Many of the plots are repeated from surveys in 1978 and were surveyed again in 1998 and 2007. General information about the plot was recorded including plot number and type as well as species presence and (usually) cover. Data were collected under the Countryside Survey long term monitoring project managed by the Centre for Ecology & Hydrology. Full details about this dataset can be found at https://doi.org/10.5285/26e79792-5ffc-4116-9ac7-72193dd7f191

Vegetation species and soil data from a large national survey of calcareous grasslands, carried out in Great Britain in 1990-1993 (referred to as 1990) and 2006-2009 (referred to as 2007). Up to 128 12x12m plots were surveyed from across the country, selected on the basis of being representative of the calcareous grassland type. Details about plant species and soils were collected using standardized survey methods. The 1990 survey was completed under a contract from the Department of the Environment, by Lancaster University. The repeat survey in 2007 was completed under a NERC Grant by staff from Lancaster University, York University, Radboud University, Countryside Commission for Wales, National Museum Wales and the Centre for Ecology & Hydrology. Full details about this dataset can be found at https://doi.org/10.5285/38a73c7b-3e3c-4517-a33f-bd28b292b9e1