@prefix aiiso: . @prefix cc: . @prefix dc1: . @prefix dcat: . @prefix foaf: . @prefix mads: . @prefix org1: . @prefix owl: . @prefix skos: . @prefix tdwgi: . @prefix vcard: . @prefix void: . @prefix xsd: . a void:DatasetDescription ; cc:license ; foaf:primaryTopic . a aiiso:Institution, org1:Organization, foaf:Organization ; tdwgi:acronymOrCoden "NHMUK" ; tdwgi:institutionType ; owl:sameAs , ; foaf:name "Natural History Museum" . a dcat:Dataset ; dc1:creator [ a vcard:Person ; vcard:fn "Helen Phillips; Adriana De Palma; Ricardo E Gonzalez; Sara Contu; Samantha L L Hill; Andrés Baselga; Luca Borger; Andy Purvis" ] ; dc1:identifier <10.5519/he1eqmg1> ; dc1:issued "2021-10-04T09:50:44.964281"^^xsd:dateTime ; dc1:license ; dc1:modified "2026-01-26T16:49:41.992323"^^xsd:dateTime ; dc1:temporal "1970-2050" ; dc1:title "The Biodiversity Intactness Index - country, region and global-level summaries for the year 1970 to 2050 under various scenarios" ; dcat:contactPoint ; dcat:description """Using the PREDICTS database of local biodiversity measures at thousands of sites around the world, we statistically modelled how total abundance of organisms and compositional similarity responded to land use and related pressures. We combined these models with spatio-temporal projections of explanatory variables (at 0.25 degrees spatial resolution) from the year 1970 to 2050 under five Shared Socioeconomic Pathways (SSPs) to project the Biodiversity Intactness Index (BII). Mean BII (weighted by cell area) was calculated at the country, subregion, interregion and global level. We used cross-validation (leaving one biome out in turn) to produce decadal upper and lower uncertainty margins for 1970-2050. These summary data were uploaded to the Natural History Museum's Biodiversity Trends Explorer on 2021-10-27. We have also provided mean values of some of the pressures, as changes in these contribute to changes in BII.\r \r Please note that this data product is deprecated. Please see here for the latest public release of the Biodiversity Intactness Index: https://data.nhm.ac.uk/dataset/bii-developed-by-nhm-v2-1-1-limited-release\r """ ; dcat:distribution , , , ; dcat:landingPage , , , ; dcat:theme [ a skos:Concept ; skos:prefLabel "Research" ] . a vcard:Person ; mads:hasAffiliation ; vcard:fn "Adriana De-palma" ; vcard:hasEmail . a dcat:Distribution ; dc1:description """We calculated the mean values for each year of the Biodiversity Intactness Index (BII) (weighted by cell area) as well as a number of pressure variables (as change in pressures drive change in BII). We used cross-validation (leaving one biome out in turn) to provide decadal upper and lower uncertainty margins for BII.\r \r The variables include: bii: mean Biodiversity Intactness Index \r crops: mean grid cell fraction assigned to annual, perennial and nitrogen-fixing crops \r pastureland: mean grid cell fraction assigned to pasture and rangeland \r urban extent: mean grid cell fraction assigned to urban \r highintensityag: mean grid cell fraction assigned to high-intensity agriculture (annual, perennial and nitrogen fixing crops and pasture) \r qualitynatural: primary and mature secondary vegetation that is either under minimal or light use hpd: mean human population density\r \r Area codes correspond to the UN M49 area codes for countries, interregions, subregions and regions. See associated json file.\r \r The summary data are provided for all variables in long format (i.e., one row for each scenario, year, variable and area code combination).\r \r \r Previous version included only data for 2000-2050, and did not include uncertainty limits.""" ; dc1:format "CSV" ; dc1:title "long_data.csv" ; dcat:accessURL ; dcat:byteSize 30229598.0 ; dcat:mediaType "text/csv" . a dcat:Distribution ; dc1:description "json file providing area codes and names (using UN M49 area codes for countries, interregions, subregions and regions). " ; dc1:format "JSON" ; dc1:title "area_code.json" ; dcat:accessURL ; dcat:byteSize 21165.0 ; dcat:mediaType "application/json" . a dcat:Distribution ; dc1:description "area codes, along with hierarchy information and names, using the UN M49 area codes for countries, interregions, subregions and regions." ; dc1:format "JSON" ; dc1:title "area_code_hier.json" ; dcat:accessURL ; dcat:byteSize 18318.0 ; dcat:mediaType "application/json" . a dcat:Distribution ; dc1:description """We calculated the mean values for each year of the Biodiversity Intactness Index (BII) (weighted by cell area) as well as a number of pressure variables (as change in pressures drive change in BII). We used cross-validation (leaving one biome out in turn) to provide decadal upper and lower uncertainty margins for BII.\r \r The variables include: bii: mean Biodiversity Intactness Index \r crops: mean grid cell fraction assigned to annual, perennial and nitrogen-fixing crops \r pastureland: mean grid cell fraction assigned to pasture and rangeland \r urban extent: mean grid cell fraction assigned to urban \r highintensityag: mean grid cell fraction assigned to high-intensity agriculture (annual, perennial and nitrogen fixing crops and pasture) \r qualitynatural: primary and mature secondary vegetation that is either under minimal or light use hpd: mean human population density\r \r Area codes correspond to the UN M49 area codes for countries, interregions, subregions and regions. See associated json file.\r \r The summary data are provided for all variables in long format (i.e., one row for each scenario, year, variable and area code combination).\r \r \r Previous version included only data for 2000-2050, and did not include uncertainty limits.""" ; dc1:title "long_data.rds" ; dcat:accessURL ; dcat:byteSize 1609383.0 .