cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15468/dl.jmzeb4
title: Occurrence Download

description: A dataset containing 6108 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Scaevola sericea G.Forst.",
 {
 "not" : {
 "Country" : [
 "is United States of America"
 ]
 }
 },
 {
 "not" : {
 "Country" : [
 "is unknown or invalid"
 ]
 }
 },
 {
 "not" : {
 "Country" : [
 "is United States"
 ]
 }
 },
 {
 "not" : {
 "Country" : [
 "is United States of America"
 ]
 }
 },
 {
 "not" : {
 "Country" : [
 "is Canada"
 ]
 }
 },
 {
 "not" : {
 "Country" : [
 "is Canada"
 ]
 }
 },
 {
 "not" : {
 "Continent" : [
 "is North America"
 ]
 }
 }
 ]
}

 The dataset includes 6108 records from 161 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0046506-230224095556074/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.rscsdd
title: Occurrence Download

description: A dataset containing 362763 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "or" : [
 "StateProvince is ILLinois",
 "StateProvince is WIsconsin",
 "StateProvince is INdiana"
 ]
 },
 "DatasetKey is iNaturalist Research-grade Observations",
 "HasCoordinate is true",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 362763 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0062346-200221144449610/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.gzxjap
title: Occurrence Download

description: A dataset containing 28 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON ((-74.0505833999999936 40.8923731000000004, -74.0505833999999936 40.8934296400000008, -74.0505833999999936 40.8951200999999998, -74.0505833999999936 40.8968810000000005, -74.0505833999999936 40.8980079800000027, -74.0505833999999936 40.8994167000000033, -74.0492402699999985 40.8994167000000033, -74.0472605300000026 40.8994167000000033, -74.0462706600000047 40.8994167000000033, -74.0449979800000051 40.8994167000000033, -74.0431596500000069 40.8994167000000033, -74.0415337000000022 40.8994167000000033, -74.0415337000000022 40.8984305999999975, -74.0415337000000022 40.8969514400000023, -74.0415337000000022 40.8956835899999973, -74.0415337000000022 40.8946974899999987, -74.0415337000000022 40.8932887699999981, -74.0415337000000022 40.8923731000000004, -74.0434424700000022 40.8923731000000004, -74.0449979800000051 40.8923731000000004, -74.0461292500000070 40.8923731000000004, -74.0471898299999935 40.8923731000000004, -74.0489574500000032 40.8923731000000004, -74.0505833999999936 40.8923731000000004))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1932",
 "BasisOfRecord is one of (Human Observation, Living Specimen, Observation, Specimen, Machine Observation)"
 ]
}

 The dataset includes 28 records from 3 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0098897-220831081235567/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.fjcrs5
title: Occurrence Download

description: A dataset containing 2876 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Mexico",
 "Geometry POLYGON((-99.2994 19.20648,-99.24402 19.20648,-99.24402 19.22896,-99.2994 19.22896,-99.2994 19.20648))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 2876 records from 77 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0055070-200221144449610/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.rknpwx
title: Occurrence Download

description: A dataset containing 160 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Ophichthus cylindroideus (Ranzani, 1839)"
 ]
}

 The dataset includes 160 records from 21 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0074258-220831081235567/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.s2qqmz
title: Occurrence Download

description: A dataset containing 146 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Hymenidium hedinii (Diels) Pimenov & Kljuykov"
 ]
}

 The dataset includes 146 records from 15 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0085619-230530130749713/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.b73dft
title: Occurrence Download

description: A dataset listing the 41 species recorded in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((123.27759 -0.16479,122.83813 0.40649,122.2229 1.41724,121.14624 1.85669,120.00366 0.97778,118.97095 -0.25269,118.13599 -1.72485,118.39966 -3.17505,123.69507 -2.47192,123.8269 -0.95581,123.27759 -0.16479,123.27759 -0.16479))",
 "TaxonKey is Gesneriaceae"
 ]
}

 The dataset's 41 records were derived from 7 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0041472-200221144449610/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.p5tvhg
title: Occurrence Download

description: A dataset containing 45939 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Drosera anglica Huds.",
 "HasCoordinate is true",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 45939 records from 294 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0181237-220831081235567/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.eycc6c
title: Occurrence Download

description: A dataset containing 9 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Physospermopsis handelii (H.Wolff ex Hand.-Mazz.) Pimenov & Kljuykov"
 ]
}

 The dataset includes 9 records from 7 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0085618-230530130749713/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.k2pj77
title: Occurrence Download

description: A dataset containing 9889 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Mexico",
 "TaxonKey is Desmodus rotundus (E.Geoffroy, 1810)"
 ]
}

 The dataset includes 9889 records from 100 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0033984-200221144449610/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.apzvhd
title: Occurrence Download

description: A dataset containing 1900 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Claytonia rubra (Howell) Tidestr.",
 "HasCoordinate is true"
 ]
}

 The dataset includes 1900 records from 52 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0074267-220831081235567/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.dqcxqa
title: Occurrence Download

description: A dataset containing 3093 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Ambystoma californiense Gray, 1853"
 ]
}

 The dataset includes 3093 records from 35 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000386-240425142415019/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.xarfq9
title: Occurrence Download

description: A dataset containing 9602 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Tecoma stans (L.) Juss. ex Kunth",
 {
 "not" : {
 "Country" : [
 "is United States of America"
 ]
 }
 },
 {
 "not" : {
 "Country" : [
 "is unknown or invalid"
 ]
 }
 },
 {
 "not" : {
 "Country" : [
 "is United States"
 ]
 }
 },
 {
 "not" : {
 "Country" : [
 "is United States of America"
 ]
 }
 },
 {
 "not" : {
 "Country" : [
 "is Canada"
 ]
 }
 },
 {
 "not" : {
 "Country" : [
 "is Canada"
 ]
 }
 },
 {
 "not" : {
 "Continent" : [
 "is North America"
 ]
 }
 }
 ]
}

 The dataset includes 9602 records from 385 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0046581-230224095556074/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.y2nh3h
title: Occurrence Download

description: A dataset containing 60198 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((-106.68277 34.96053,-106.66245 34.96053,-106.66245 34.98596,-106.68277 34.98596,-106.68277 34.96053))",
 "HasCoordinate is true",
 "TaxonKey is Aves",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 60198 records from 4 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0055082-200221144449610/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.3frwt4
title: Occurrence Download

description: A dataset containing 17048 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Hemiemblemaria simulus Longley & Hildebrand, 1940"
 ]
}

 The dataset includes 17048 records from 42 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0074263-220831081235567/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.fvqv8c
title: Occurrence Download

description: A dataset containing 19532 species occurrences available in GBIF matching the query:
{
 "and" : [
 "VerbatimScientificName is Laterallus melanophaius",
 "BasisOfRecord is one of (Machine Observation, Human Observation)",
 "Year 2011-2021",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen, Specimen, Material citation, Material sample)"
 ]
 }
 }
 ]
}

 The dataset includes 19532 records from 6 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0074632-230530130749713/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.k2ejst
title: Occurrence Download

description: A dataset containing 45219 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Turdus amaurochalinus Cabanis, 1850"
 ]
}

 The dataset includes 45219 records from 62 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0062349-200221144449610/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.uw3vyt
title: Occurrence Download

description: A dataset containing 274 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Gari anomala (Deshayes, 1855)"
 ]
}

 The dataset includes 274 records from 34 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0106375-220831081235567/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.eh8f4d
title: Occurrence Download

description: A dataset containing 234 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Simmondsia chinensis (Link) C.K.Schneid.",
 {
 "not" : {
 "Country" : [
 "is United States of America"
 ]
 }
 },
 {
 "not" : {
 "Country" : [
 "is unknown or invalid"
 ]
 }
 },
 {
 "not" : {
 "Country" : [
 "is United States"
 ]
 }
 },
 {
 "not" : {
 "Country" : [
 "is United States of America"
 ]
 }
 },
 {
 "not" : {
 "Country" : [
 "is Canada"
 ]
 }
 },
 {
 "not" : {
 "Country" : [
 "is Canada"
 ]
 }
 },
 {
 "not" : {
 "Continent" : [
 "is North America"
 ]
 }
 }
 ]
}

 The dataset includes 234 records from 47 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0046523-230224095556074/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.sp5hse
title: Occurrence Download

description: A dataset containing 22475 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Trogon viridis Linnaeus, 1766"
 ]
}

 The dataset includes 22475 records from 109 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0062344-200221144449610/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.bvvstp
title: Occurrence Download

description: A dataset containing 36 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((-82.71969 6.8865,-75.9554 3.53829,-72.01899 5.7101,-71.13909 13.18493,-82.12802 11.03659,-82.71969 6.8865))",
 "HasGeospatialIssue is false",
 "TaxonKey is Enuliophis sclateri (Boulenger, 1894)"
 ]
}

 The dataset includes 36 records from 14 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0046513-230224095556074/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.a8h5hw
title: Occurrence Download

description: A dataset containing 606 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Tyranniscus Cabanis, 1851"
 ]
}

 The dataset includes 606 records from 10 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0062358-200221144449610/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.ax5ga6
title: Occurrence Download

description: A dataset containing 47 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Sideroxylon reclinatum Michx.",
 {
 "not" : {
 "Country" : [
 "is United States of America"
 ]
 }
 },
 {
 "not" : {
 "Country" : [
 "is unknown or invalid"
 ]
 }
 },
 {
 "not" : {
 "Country" : [
 "is United States"
 ]
 }
 },
 {
 "not" : {
 "Country" : [
 "is United States of America"
 ]
 }
 },
 {
 "not" : {
 "Country" : [
 "is Canada"
 ]
 }
 },
 {
 "not" : {
 "Country" : [
 "is Canada"
 ]
 }
 },
 {
 "not" : {
 "Continent" : [
 "is North America"
 ]
 }
 }
 ]
}

 The dataset includes 47 records from 4 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0046521-230224095556074/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.1nynke
title: Occurrence Download

description: A dataset containing 17 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Philippines",
 "TaxonKey is Laticauda semifasciata (Reinwardt, 1837)"
 ]
}

 The dataset includes 17 records from 7 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0002897-180730143533302/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.39zprg
title: Occurrence Download

description: A dataset containing 13405 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Helianthus annuus L.",
 "Country is one of (United States of America, Canada)",
 "Year is greater than or equal to 1979"
 ]
}

 The dataset includes 13405 records from 133 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0046525-230224095556074/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.17026/ar/be6tmg
title: PAN-00170257 - copper alloy nail with a hemispherical head

description: &lt;p&gt;This find is registered at Portable Antiquities of the Netherlands with number PAN-00170257&lt;/p&gt;
description: Modified: 2025-07-06T10:30:27+02:00
DOI: 10.15468/dl.qq8k6f
title: Occurrence Download

description: A dataset containing 6 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Avahi cleesei",
 "HasCoordinate is TRUE"
 ]
}

 The dataset includes 6 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0025602-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.62e62u
title: Occurrence Download

description: A dataset containing 10835 species occurrences available in GBIF matching the query:
(Query is too complex. Can be viewed on the landing page)

 The dataset includes 10835 records from 7 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0025601-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.vw3sxf
title: Occurrence Download

description: A dataset containing 6212 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Euglandina rosea"
 ]
}

 The dataset includes 6212 records from 91 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0025603-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.17026/ar/igrghz
title: PAN-00107961 - coin/coin-related, Gallische tegenkeizer ?, naar, antoninianus

description: &lt;p&gt;This find is registered at Portable Antiquities of the Netherlands with number PAN-00107961&lt;/p&gt;
description: Modified: 2025-06-11T07:28:23+02:00
DOI: 10.15468/dl.f88kf4
title: Occurrence Download

description: A dataset containing 15292 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Mirounga angustirostris"
 ]
}

 The dataset includes 15292 records from 118 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0025604-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.wrc43c
title: Occurrence Download

description: A dataset containing 71 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Lyroderma lyra",
 "Country is one of (China, Chinese Taipei, Hong Kong)"
 ]
}

 The dataset includes 71 records from 8 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0025605-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.csn4hq
title: Occurrence Download

description: A dataset containing 263 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Avahi laniger",
 "HasCoordinate is TRUE"
 ]
}

 The dataset includes 263 records from 12 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0025606-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.5281/zenodo.13147120
title: ropebwt indices

description: This repository provides BWTs of two large datasets in the ropebwt3 format:



human100: 100 human haplotype assemblies (~300Gb on one strand)

CommonBacteria: a subset of AllTheBacteria v0.2, excluding genomes in the "dustbin" and the "unknown" categories (~7.3Tb on one strand)


BWTs here include both the forward and the reverse complement strands. A more recent version of human index can be found here.
DOI: 10.5066/p9ezbcao
title: Phytoplankton data for Stagecoach Reservoir near Steamboat Springs, Colorado, (ver. 2.0, December 2025)

description: This U.S. Geological Survey (USGS) data release provides phytoplankton data collected from Stagecoach Reservoir, Colorado, during the summer months, July through September, 2017-18 and 2022-23. The data were collected by the USGS, in cooperation with the Upper Yampa Water Conservancy District and Colorado Parks and Wildlife. All data are reported as raw calculated values and are not rounded to USGS significant figures. The dataset includes all routine and quality-assurance and quality-control samples collected at the sampling sites: Stagecoach Reservoir at Dam (USGS site 401707106495800), Stagecoach Reservoir near inlet, near Oak Creek, Colorado (USGS site 401628106515500) and Stagecoach Reservoir near Martin Creek, near Oak Creek, Colorado (USGS 401701106510801). Phytoplankton were identified to the lowest possible taxonomic level, and abundance (density) and biovolume are reported. First posted - August, 2020 Revised - December, 2025
DOI: 10.5281/zenodo.11533210
title: ropebwt indices

description: This repository provides BWTs of two large datasets in the ropebwt3 format:



human100: 100 human haplotype assemblies (~300Gb on one strand)

CommonBacteria: a subset of AllTheBacteria v0.2, excluding genomes in the "dustbin" and the "unknown" categories (~7.3Tb on one strand)


BWTs here include both the forward and the reverse complement strands. A more recent version of human index can be found here.
DOI: 10.25574/44829
title: Chandra X-ray Observatory ObsId 44829
DOI: 10.25574/44834
title: Chandra X-ray Observatory ObsId 44834
DOI: 10.5281/zenodo.17804446
title: Constrained Fire Projections Across the Continental United States

description: To constrain Coupled Model Intercomparison Project Phase 6 (CMIP6) fire projections, we primarily used the observational constraints from six satellite-based fire carbon dioxide emissions inventories based on three methods: machine learning (ML), Bayesian model averaging (BMA), and emergent constraints (EC). The satellite fire emissions inventories include GFAS (Global Fire Assimilation System Version 1.2), FEER (Fire Energetics and Emissions Research Version 1.0), QFED (Quick Fire Emissions Dataset Version 2.4), FINN (Fire Inventory from NCAR Version 2.5; MODIS-based), GFED5 (Global Fire Emissions Database Version 5 Beta), and GFED41s (Global Fire Emissions Database Version 4.1s). In the constrain process, we also used a few auxiliary datasets to represent surrounding environmental conditions (e.g., air temperature), fuel availability (leaf area index and land use), and ignition sources (flash rate and population density).
DOI: 10.5281/zenodo.17804447
title: Constrained Fire Projections Across the Continental United States

description: To constrain Coupled Model Intercomparison Project Phase 6 (CMIP6) fire projections, we primarily used the observational constraints from six satellite-based fire carbon dioxide emissions inventories based on three methods: machine learning (ML), Bayesian model averaging (BMA), and emergent constraints (EC). The satellite fire emissions inventories include GFAS (Global Fire Assimilation System Version 1.2), FEER (Fire Energetics and Emissions Research Version 1.0), QFED (Quick Fire Emissions Dataset Version 2.4), FINN (Fire Inventory from NCAR Version 2.5; MODIS-based), GFED5 (Global Fire Emissions Database Version 5 Beta), and GFED41s (Global Fire Emissions Database Version 4.1s). In the constrain process, we also used a few auxiliary datasets to represent surrounding environmental conditions (e.g., air temperature), fuel availability (leaf area index and land use), and ignition sources (flash rate and population density).