cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15468/dl.2bumfy
title: Occurrence Download

description: A dataset containing 492829 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Phalaris arundinacea L."
 ]
}

 The dataset includes 492829 records from 882 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0268061-200613084148143/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.yd6ozn
title: Occurrence Download

description: A dataset containing 21705 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Tarsiger cyanurus (Pallas, 1773)"
 ]
}

 The dataset includes 21705 records from 111 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0022951-190621201848488/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.elmlnh
title: Occurrence Download

description: A dataset containing 5962 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Metzgeria conjugata Lindb."
 ]
}

 The dataset includes 5962 records from 142 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0002916-180730143533302/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.qwdgx7
title: Occurrence Download

description: A dataset containing 28 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 }
 ]
 },
 "TaxonKey is Ploceus dorsomaculatus (Reichenow, 1893)"
 ]
}

 The dataset includes 28 records from 5 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0002965-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.x7cgck
title: Occurrence Download

description: A dataset containing 725 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Tragopan satyra (Linnaeus, 1758)"
 ]
}

 The dataset includes 725 records from 51 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0022947-190621201848488/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.rjb268
title: Occurrence Download

description: A dataset containing 4 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is China",
 "TaxonKey is Cremanthodium dissectum Grierson"
 ]
}

 The dataset includes 4 records from 4 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0268065-200613084148143/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.j2vty8
title: Occurrence Download

description: A dataset containing 7933 species occurrences available in GBIF matching the query:
{
 "and" : [
 "DatasetKey is one of (Données piscicoles et astacicoles des cours d'eau de France métropolitaine bancarisées dans ASPE (OFB) - Données acquises selon le protocole de pêche partielle par points - ASPE - OFB, USGS Nonindigenous Aquatic Species database, Canadian Museum of Nature Fish Collection, Données piscicoles et astacicoles des cours d'eau de France métropolitaine bancarisées dans ASPE (OFB) - Données acquises selon le protocole de pêche complète à un ou plusieurs passages - ASPE - OFB, Artportalen (Swedish Species Observation System), National Lamprey Survey of Scotland (2003-2005), Rapportage 2013-2018 au titre de la directive Habitats-Faune-Flore - Données de synthèse Espèces issues du rapportage au titre de la directive Habitats - période 2013-2018, Rapportage 2007-2012 au titre de la directive Habitats-Faune-Flore - Données de synthèse Espèces issues du rapportage au titre de la directive Habitats - période 2007-2012, Rapportage 2001-2006 au titre de la directive Habitats-Faune-Flore - Données de synthèse Espèces issues du rapportage au titre de la directive Habitats - période 2001-2006, Database for the Atlas of Freshwater Fishes)",
 "TaxonKey is Petromyzon Linnaeus, 1758"
 ]
}

 The dataset includes 7933 records from 10 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005294-240130105604617/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.ttegsj
title: Occurrence Download

description: A dataset containing 496 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "or" : [
 "BasisOfRecord is Human Observation",
 "BasisOfRecord is Observation",
 "BasisOfRecord is Machine Observation",
 "BasisOfRecord is Specimen"
 ]
 },
 "Year 1980-2019",
 "HasCoordinate is true",
 {
 "or" : [
 "TaxonKey is Acipenser transmontanus Richardson, 1836",
 "TaxonKey is Polyodon spathula (Walbaum, 1792)",
 "TaxonKey is Catlocarpio siamensis Boulenger, 1898",
 "TaxonKey is Acipenser ruthenus Linnaeus, 1758",
 "TaxonKey is Tor putitora (Hamilton, 1822)"
 ]
 },
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 496 records from 33 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005457-190813142620410/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.y7nshn
title: Occurrence Download

description: A dataset containing 741 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Dioscorea amaranthoides C.Presl"
 ]
}

 The dataset includes 741 records from 85 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0153543-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.bkgv9k
title: Occurrence Download

description: A dataset containing 7 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Comparettia ecalcarata (Determann) M.W.Chase & N.H.Williams"
 ]
}

 The dataset includes 7 records from 7 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0153544-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.pgykfa
title: Occurrence Download

description: A dataset containing 339 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "or" : [
 "Country is Spain",
 "Country is Portugal"
 ]
 },
 "TaxonKey is Jasione crispa subsp. tomentosa (A.DC.) Rivas Mart."
 ]
}

 The dataset includes 339 records from 32 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0219794-200613084148143/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.9cn23t
title: Occurrence Download

description: A dataset containing 243 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Mexico",
 "TaxonKey is Eremobatidae"
 ]
}

 The dataset includes 243 records from 18 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0003682-190813142620410/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.vm5ava
title: Occurrence Download

description: A dataset containing 772 species occurrences available in GBIF matching the query:
{
 "DatasetKey" : [
 "is Freshwater Lamprey Survey Data"
 ]
}

 The dataset includes 772 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005329-240130105604617/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.5bpf6t
title: Occurrence Download

description: A dataset containing 34 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Philippines",
 "Geometry POLYGON((120.74872 12.40734,120.25485 12.83764,116.69194 12.85483,115.86295 7.54488,121.78937 7.56236,120.74872 12.40734))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Tridacna Bruguière, 1797"
 ]
}

 The dataset includes 34 records from 9 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0219786-200613084148143/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.63kfdb
title: Occurrence Download

description: A dataset containing 181769 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Caretta caretta (Linnaeus, 1758)"
 ]
}

 The dataset includes 181769 records from 614 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0153522-240321170329656/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.1594/pangaea.823057
title: Organic-geochemical proxies (UK'37 and TEXH86) records in surface sediments of the tropical Eastern Indian Ocean

description: In this study we reconstruct sea surface temperatures (SSTs) using two lipid-based biomarker proxies (alkenone unsaturation index UK'37 and TEX86 index based on glycerol dibiphytanyl glycerol tetraethers) in 36 surface sediment samples from the Indonesian continental margin off west Sumatra and south of Java and the Lesser Sunda Islands. Comparison of measured temperatures (World Ocean Atlas 09) to reconstructed temperatures suggests that SST-UK'37 reflects the SE monsoon SST in the upwelling area south of Java and the Lesser Sunda Islands, whereas Temp-TEXH86 estimates are up to 2°C lower than SST-UK'37. This offset is possibly related to either one or a combination of two factors: i) the depth habitats of the source organisms; ii) different seasonal production and/ or seasonality of export associated with phytoplankton blooming triggered by primary productivity. In the non-upwelling area off west Sumatra, the alkenone-based SSTs are cooler than measured temperatures during the entire year, likely due to the reduced sensitivity of the UK'37 proxy beyond 28°C. However, reconstructed temperatures based on TEXH86 are consistent with mean annual SST, implying that the Temp-TEXH86 reflects the mean annual SST in the non-upwelling area of the tropical Eastern Indian Ocean.
description: DEPTH, sediment/rock = 0 - 1 cm
description: Supplement to: Chen, Wenwen; Mohtadi, Mahyar; Schefuß, Enno; Mollenhauer, Gesine (2014): Organic-geochemical proxies of sea surface temperature in surface sediments of the tropical eastern Indian Ocean. Deep Sea Research Part I: Oceanographic Research Papers, 88, 17-29
DOI: 10.1594/pangaea.819338
title: (Table 1) Sample descriptions, carbon analyses, and analytical results for the lipids and kerogens of sediments from DSDP Leg 63 Holes

description: Sediment depth is given in mbsf. Empty cells mean no data.
DOI: 10.1594/pangaea.863910
title: (Table 3) Position, water depth, core depth, TOC content, nC29–31 concentration, ACL, CPI, δ¹³C nC29–31, dD nC29–31 of core top samples collected in the Amazon Basin

description: Samples with only one deuterium measurement are marked with *.
DOI: 10.1594/pangaea.875634
title: n-Alkane of sediment core PG2303-1
DOI: 10.1594/pangaea.763994
title: (Table 1) Total organic carbon, delta13C and biomarker concentrations from IODP Holes 307-U1317A and 307-U1317D
DOI: 10.1594/pangaea.875635
title: n-Alkane in surface sediments off Herschel Island
DOI: 10.1594/pangaea.759882
title: (Table EA2) Geochemical proxy data along river-mouth to deep-basin transects
DOI: 10.1594/pangaea.763997
title: (Table 4) Total organic carbon, delta13C and biomarker concentrations from IODP Holes 307-U1318A and 307-U1318B
DOI: 10.1594/pangaea.899719
title: Organic geochemical and foraminiferal MAT data for sediment core GeoB5901-2
DOI: 10.1594/pangaea.733879
title: (Table 3) Concentrations of lipid biomarkers and lignin-derived phenols in all samples from the mudbelt, inner and mid-shelf, outer shelf and continental slope

description: Surface sediment samples were sampled from a depth interval of 0-2 cm.
DOI: 10.1594/pangaea.770253
title: (Table 3.4.3) Distribution of n-alkanes in surface layer bottom sediments of the Chukchi Sea
DOI: 10.1594/pangaea.143005
title: Compiled mass accumulation rates (MAR) of the n-alkanes-Biomarker data (Table 3)

description: Depth = composite depth / HPA-Index, Higher Plant Alkanes Index (n-alkanes with carbon number C23,C25,...,C33; n-alkanols with carbon number C22,C24,..,C32)
DOI: 10.1594/pangaea.119025
title: Biomarkers at mooring J4_1
DOI: 10.1594/pangaea.758517
title: (Table 3) n-alkane and isoprenoid data for selected ODP Hole 119-739C and 119-741A samples
DOI: 10.1594/pangaea.119026
title: Biomarkers at mooring J4_2
DOI: 10.1594/pangaea.762322
title: (Table 1) n-Alkanes in bottom sediments of the West European Basin (area of the battleship Bismark wreck site)
DOI: 10.1594/pangaea.57049
title: Organic compounds in surface sediments from the Pakistan continental margin

description: In order to assess whether the oxygen-minimum zone (OMZ) in the Arabian sea has an effect on the preservation and composition of organic matter in surface sediments we investigated samples from three different transects on the Pakistan continental margin across the OMZ. In addition to determining the total amount of organic carbon (TOC), we analyzed the extractable lipids by gas chromatography, combined gas chromatography/mass spectrometry, and compound-specific stable carbon isotope measurements. The extractable lipids are dominated by marine organic matter as indicated by the abundance of lipids typical of marine biota and by the bulk and molecular isotopic composition. Sediments from within the OMZ are enriched in organic carbon and in several extractable lipids (i.e. phytol, n-alcohols, total sterols, n-C35 alkane) relative to stations above and below this zone. Other lipid concentrations, such as those of total n-fatty acids and total n-alkanes fail to show any relation to the OMZ. Only a weak correlation of TOC with mineral surface area was found in sediments deposited within the OMZ. In contrast, sediments from outside the OMZ do not show any relationship between TOC and surface area. Among the extractable lipids, only the n-alkane concentration is highly correlated with surface area in sediments from the Hab and Makran transects. In sediments from outside the OMZ, the phytol and sterol concentrations are also weakly correlated with mineral surface area. The depositional environment of the Indus Fan offers the best conditions for an enhanced preservation of organic matter. The OMZ, together with the undisturbed sedimentation at moderate rates, seems to be mainly responsible for the high TOC values in this area. Overall, the type of organic matter and its lability toward oxic degradation, the mineral surface area, the mineral composition, and possibly the secondary productivity by (sedimentary) bacteria also appear to have an influence on organic matter accumulation and composition.
description: Supplement to: Schulte, Sonja; Mangelsdorf, Kai; Rullkötter, Jürgen (2000): Organic matter preservation on the Pakistan continental margin as revealed by biomarker geochemistry. Organic Geochemistry, 31(10), 1005-1022
DOI: 10.1594/pangaea.57506
title: Age model and chemistry of sediment core STK7 from Steisslinger See

description: Stable isotope records for carbon and oxygen in bulk carbonates, carbon in bulk organic matter, and for total and chromium-reducible sulfur in a lacustrine sediment core from Lake Steisslingen (Southwest Germany) show several distinct and abrupt shifts during the last 15,000 years. Variations in the isotopic composition of authigenic carbonates indicate two major phases in the lake history. In the pre-Holocene, the hydrological budget of the lake was apparently stable. Variations of delta18O values of authigenic carbonates were, therefore, dominantly controlled by temperature changes. A decrease in the delta18Ocarb values of about 2 per mil at the Allerød/Younger Dryas transition is interpreted as a drop in mean annual air temperatures of approximately 5°C. An abrupt temperature increase of a similar magnitude is inferred at the Younger Dryas/Preboreal boundary. Throughout most of the Holocene, the isotopic composition of authigenic carbonates was influenced by marked changes in the hydrological budget of the lake. A major positive excursion in the delta13Ccarb and delta18Ocarb values at the beginning of the Atlantic and a smaller one in the Preboreal were related to evaporation effects, which indicate that dry climatic conditions must have prevailed at that time. A simultaneous increase in delta13C values of bulk organic matter at the beginning of the Atlantic suggests a high level of productivity in the lake. As a consequence, aqueous sulfate became limited as indicated by variations in the delta34S values of total and chromium-reducible sedimentary sulfur. Therefore, we conclude that the beginning of the Atlantic was characterized not only by dry but also by warm climatic conditions, which triggered a higher productivity in the lake. In the Subatlantic sediments, large variations in carbon, oxygen, and sulfur isotope ratios were observed as a result of human activities, causing considerable perturbations in the biogeochemical element cycling of Lake Steisslingen. Results obtained by the study of the continuous 15 ka record of Lake Steisslingen document clearly that isotopic proxy data from lacustrine sediments can provide useful information on environmental and climatic changes of local, regional, and in the case of the Younger Dryas event, of even hemispherical significance.
description: Supplement to: Mayer, Bernhard; Schwark, Lorenz (1999): A 15.000-year stable isotope record from sediments of Lake Steisslingen, Southwest Germany. Chemical Geology, 161(1-3), 315-337
DOI: 10.1594/pangaea.794495
title: (Appendix C) Long-chain n-alkanes, carbon preference index and organic matter content of ODP Hole 167-1016C sediments
DOI: 10.1594/pangaea.786990
title: (Table 2) Contents, group-, and molecular compositions of n-alkanes in bottom sediments from the Nha Trang Bay

description: In Sum Cl is added as ClO2.
DOI: 10.1594/pangaea.55876
title: (Figure 8) Organic geochemistry of sediment core MD90-963
DOI: 10.1594/pangaea.810201
title: (Table 2) Geolipid contents of green claystones and black shales at DSDP Hole 75-530A
DOI: 10.1594/pangaea.733333
title: (Table 1) CPI17-23, hopanoic acid, and n-C35 + lycopane/n-C31 ratios as well as 17beta(H), 21beta(H) homohopane, long-chain alkanes, and alkenones concentrations in IODP Exp302

description: During Integrated Ocean Drilling Program Expedition 302 (Arctic Coring Expedition (ACEX)) a more than 200 m thick sequence of Paleogene organic carbon (OC)-rich (black shale type) sediments was drilled. Here we present new biomarker data determined in ACEX sediment samples to decipher processes controlling OC accumulation and their paleoenvironmental significance during periods of Paleogene global warmth and proposed increased freshwater discharge in the early Cenozoic. Specific source-related biomarkers including n-alkanes, fatty acids, isoprenoids, carotenoids, hopanes/hopenes, hopanoic acids, aromatic terpenoids, and long-chain alkenones show a high variability of components, derived from marine and terrestrial origin. The distribution of hopanoic acid isomers is dominated by compounds with the biological 17beta(H), 21beta(H) configuration indicating a low level of maturity. On the basis of the biomarker data the terrestrial OC supply was significantly enriched during the late Paleocene and part of the earliest Eocene, whereas increased aquatic contributions and euxinic conditions of variable intensity were determined for the Paleocene-Eocene thermal maximum and Eocene thermal maximum 2 events as well as the middle Eocene time interval. Furthermore, samples from the middle Eocene are characterized by the occurrence of long-chain alkenones, high proportions of lycopane, and high ratios (&gt;0.6) of (n-C35 + lycopane)/n-C31. The occurrence of C37-alkenenones, which were first determined toward the end of the Azolla freshwater event, indicates that the OC becomes more marine in origin during the middle Eocene. Preliminary UK'37- based sea surface temperature (SST) values display a longterm temperature decrease of about 15C during the time interval 49-44.5 Ma (25° to 10°C), coinciding with the global benthic d18O cooling trend after the early Eocene climatic optimum. At about 46 Ma, parallel with onset of ice-rafted debris, SST (interpreted as summer temperatures) decreased to values &lt;15°C. For the late earlyMiocene a SST of 11°-15°C was determined. Most of the middle Eocene ACEX sediments are characterized by a smooth short-chain n-alkane distribution, which may point to natural oil-type hydrocarbons from leakage of petroleum reservoirs or erosion of related source rocks and redeposition.
description: -999.00 = is not analyzed because of analytical problems (values below detection limit)
DOI: 10.1594/pangaea.55822
title: (Figure 7) Organic geochemistry of sediment core SO90-136KL
DOI: 10.1594/pangaea.789221
title: (Table 2) Concentrations of solvent-extractable (free) and nonsolventextractable (bound) geolipid fractions at DSDP Hole 93-603B
DOI: 10.1594/pangaea.789222
title: (Table 3) Geolipid concentrations relative to organic carbon concentrations at DSDP Hole 93-603B
DOI: 10.1594/pangaea.848408
title: Sediment composition of IODP Site 339-U1387
DOI: 10.1594/pangaea.759294
title: (Table 1) Concentrations of lipids in bottom sediments and parameters of alkane distribution
DOI: 10.1594/pangaea.760945
title: (Table 4) Distribution of hydrocarbons in surface sediments from the Pechora Bay collected in 1994 and 1995
DOI: 10.1594/pangaea.892308
title: Table S3: n-Alkane data of yedoma and thermokarst deposits in Baldwin Peninsula, West-Alaska
DOI: 10.15468/dl.n8hux3
title: Occurrence Download

description: A dataset containing 1867 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is Specimen",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Potamotrygonidae",
 "Year 1950-2023"
 ]
}

 The dataset includes 1867 records from 47 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0020890-230530130749713/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.88ap38
title: Occurrence Download

description: A dataset containing 93 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((-100.223 20.913,-100.2 20.913,-100.2 20.925,-100.223 20.925,-100.223 20.913))",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 "TaxonKey is Tracheophyta"
 ]
}

 The dataset includes 93 records from 9 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0218927-220831081235567/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.