cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.25921/7pjm-px30
title: NOAA/WDS Paleoclimatology - United Kingdom Proboscidian Enamel Intra-Crystalline Protein Degradation Data

description: Analysis of the predictable breakdown of proteins and amino acids in ancient biominerals enables age estimation over the Quaternary. We postulate that enamel is a suitable biomineral for the long-term survival of endogenous amino acids. Analysis of multiple amino acids for geochronological studies is typically achieved using a RP-HPLC method. However, the low concentrations of amino acids coupled with high concentrations of inorganic species make accurate determination of amino concentrations challenging. We have developed a method for the routine preparation of multiple enamel samples using biphasic separation. Furthermore, we have shown that amino acids that exhibit effectively closed system behaviour can be isolated from enamel through an exposure time of 72h to bleach. Elevated temperature experiments investigating the processes of intra-crystalline protein degradation (IcPD) do not appear to match the patterns from fossil samples, reinforcing the need for a comprehensive understanding of the underlying mechanisms of protein degradation. This novel preparative method isolates intra-crystalline amino acids suitable for the development of mammalian geochronologies based on enamel protein degradation. The lower rates of racemization in enamel (cf. Bithynia opercula) suggest that the enamel AAR may be able to be used as a relative dating technique over time scales >2.8 Ma. Enamel AAR has the potential to directly date mammalian remains past the limit of all other current direct dating methods, providing an invaluable tool for geochronological studies.
description: Intra-crystalline protien degradation data on proboscidian enamel samples from a variety of sites in the British Isles
DOI: 10.25921/7dr4-yn36
title: NOAA/WDS Paleoclimatology - Mata Virgem Cave, Brazil 919-1699 CE Stalagmite Stable Isotope Data

description: The South American Monsoon System is responsible for the majority of precipitation in the continent, especially over the Amazon and the tropical savannah, known as 'Cerrado'. Compared to the extensively studied subtropical and temperate regions the effect of the Medieval Climate Anomaly (MCA) on the precipitation over the tropics is still poorly understood. Here, we present a multiproxy paleoprecipitation reconstruction showing a consistent change in the hydrologic regime during the MCA in the eastern Amazon and 'Cerrado', characterized by a substantial transition from humid to drier conditions during the Early (925-1150 C.E.) to Late-MCA (1150-1350 C.E.). We compare the timing of major changes in the monsoon precipitation with the expansion and abandonment of settlements reported in the archeological record. Our results show that important cultural successions in the pre-Columbian Central Amazon, the transition from Paredao to Guarita phase, are in agreement with major changes in the hydrologic regime. Phases of expansion and, subsequent abandonment, of large settlements from Paredao during the Early to Late-MCA are coherent with a reduction in water supply. In this context we argue that the sustained drier conditions during the latter period may have triggered territorial disputes with Guarita leading to the Paredao demise.
description: Stable isotope (d18O, d13C) data from stalagmite MV3 collected in Mata Virgem Cave, Brazil for 919-1699 CE.
DOI: 10.25921/76em-c470
title: NOAA/WDS Paleoclimatology - Khasanov - Kozelsk - QURO - ITRDB RUSS282

description: We counted the intra-annual density fluctuations (IADFs) of oak (Quercus robur) tree rings sampled in a deciduous broadleaf forest near Kozelsk (Kaluga region) in the Ugra National Park, Central Russia. Three sites in the same forest massif were sampled. We also sampled ash (Fraxinus excelsior) trees in one of these sites as a non-host species for the identification of insect outbreaks. In total, 49 oak and 21 ash trees were sampled and analyses were performed for the period 1878-2015. Within the selected time framework, we observed numerous cases with: 1) high percentage of IADFs, 2) decreased oak tree ring widths compared to that of ashes, 3) considerable quantity of oak trees with abrupt growth changes (AGC), and 4) statistically significant differences in counts of IADFs and AGC between the three sampling sites. These traits were characteristic for several consecutive years, and we interpret these as evidence of the insect herbivory causing growth interruptions during the period of the oak leaf expansion. Other external stress factors including summer droughts and late spring frosts can intensify IADFs manifestations during insect outbreaks, but did not affect oak growth strongly enough to cause growth interruptions without insect interference.
description: Insect-induced defoliation study, Russia oaks. NOAA Template Raw Measurements file added 2020-07-07.
DOI: 10.25921/7dtq-9x28
title: NOAA/WDS Paleoclimatology - Indo-Pacific Warm Pool 450,000 Year Alkenone Temperature Reconstructions

description: The Indo-Pacific Warm Pool is the largest source of heat and rainfall on Earth, but the mechanisms driving long-term climate variability in this region remain uncertain. Some studies suggest that precessional variations in insolation exert a primary role; alternatively, sea level change may be more important, with exposure of the Sunda and Sahul shelves leading to weakened Walker circulation across the Indian Ocean during glacial periods. The limited number of paleoclimate records from the warm pool that extend beyond the Last Glacial Maximum makes it difficult to test these competing hypotheses. Here, we present a 450,000-year long reconstruction of sea surface temperatures, sub-surface temperatures, and regional vegetation from southern Sumatra. We show that the dominant signal in each record is the 100 ky glacial cycle. We find that both surface and sub-surface temperatures cool during glacial periods, but the sub-surface cools more, reflecting a shoaling of the thermocline. Southern Sumatra and western Java consistently exhibit increased C4 grass coverage and an enhanced dry season during glacial periods. The observed changes in the thermocline and rainfall seasonality are consistent with the shelf exposure mechanism, suggesting that sea level changes exert a prominent role in warm pool climate over glacial-interglacial timescales.
description: Alkenone temperature, biomarker, and carbon isotope data from Indian Ocean core MD98-2152 for the past 450kyr.
DOI: 10.25921/79me-ae19
title: NOAA/WDS Paleoclimatology - Sauchyn - Base Camp - PSME - ITRDB CANA563

description: Tree ring data from the International Tree Ring Data Bank and World Data Center for Paleoclimatology archives.  Most data sets include raw treering measurements (most are annual ring width, with some collections of earlywood or latewood width or wood density), plus chronologies (standardized growth indices for a site compiled from multiple treering samples). Reconstructions of climate variables are included with some of these data sets.  Each data type is stored in a separate data file; the data type is coded into the file name. For details please see: http://www.ncdc.noaa.gov/paleo/treeinfo.htmll
description: Upper Missouri River Basin Streamflow project NOAA Template Raw Measurements file added 2020-01-15.
DOI: 10.25921/76st-3v02
title: NOAA/WDS Paleoclimatology - Kaye - Tekoa Mountain Wildlife Management Area - QURU - ITRDB MA020

description: Tree ring data from the International Tree Ring Data Bank and World Data Center for Paleoclimatology archives.  Most data sets include raw treering measurements (most are annual ring width, with some collections of earlywood or latewood width or wood density), plus chronologies (standardized growth indices for a site compiled from multiple treering samples). Reconstructions of climate variables are included with some of these data sets.  Each data type is stored in a separate data file; the data type is coded into the file name. For details please see: http://www.ncdc.noaa.gov/paleo/treeinfo.htmll
description: NOAA Template Raw Measurements file added 2020-01-15. July 2024: Elevation added by WDS-Paleo using get_elev_point() from the elevatr R package with the USGS Elevation Point Query Service (epqs) and WGS 84 reference frame.
DOI: 10.25921/7jb7-m654
title: NOAA/WDS Paleoclimatology - Sauchyn - Boyce Ranch - PSME - ITRDB MT143

description: Tree ring data from the International Tree Ring Data Bank and World Data Center for Paleoclimatology archives.  Most data sets include raw treering measurements (most are annual ring width, with some collections of earlywood or latewood width or wood density), plus chronologies (standardized growth indices for a site compiled from multiple treering samples). Reconstructions of climate variables are included with some of these data sets.  Each data type is stored in a separate data file; the data type is coded into the file name. For details please see: http://www.ncdc.noaa.gov/paleo/treeinfo.htmll
description: Upper Missouri River Basin Streamflow project NOAA Template Raw Measurements file added 2020-01-15.
DOI: 10.25921/7ja8-yt79
title: NOAA/WDS Paleoclimatology - Hughes - State Wildlife Reserve Bylina - PISY - ITRDB RUSS274

description: We report new data on tree-ring growth in northern European Russia, a region with a hitherto relatively sparse tree-ring network. We explore its associations with climate variability. Areas, sampling locations and trees were selected for representativeness rather than climate sensitivity. Using tree rings from 651 conifers from six widely dispersed areas we show strong intercorrelation between trees within each major conifer species within and between areas. Regional composite tree-ring series for spruce and pine contain a major fraction of decadal and multidecadal variability. The most likely driver of this common variability is interannual to multidecadal climate variability. Gridded monthly instrumental climate data for the period 1902-2008, particularly mean temperature and total precipitation, were tested as predictors of each local species-specific tree-ring site chronology. The most consistent pattern emerged for spruce at all but the southernmost area. Cool and moist summers the year before growth were consistent drivers of spruce ring growth throughout the period, with no change in recent decades. Self-calibrating Palmer Drought Severity Index for prior summer was also a strong and consistent driver of spruce ring growth. For pine, there was a weaker but similarly stable association between larger rings and warm, moist conditions, in this case in the current summer. These associations were also identified at multidecadal time scales, particularly for spruce. On the other hand, the specific role of moisture variability in determining interannual to multidecadal variability in tree growth in this high latitude region raises questions about the relative vulnerability of spruce and pine there under global warming.
description: NOAA Template Raw Measurements file added 2020-01-15.
DOI: 10.25921/7913-1v48
title: NOAA/WDS Paleoclimatology - Hughes - Prioksko-Terrasny Nature Reserve - PISY - ITRDB RUSS278

description: We report new data on tree-ring growth in northern European Russia, a region with a hitherto relatively sparse tree-ring network. We explore its associations with climate variability. Areas, sampling locations and trees were selected for representativeness rather than climate sensitivity. Using tree rings from 651 conifers from six widely dispersed areas we show strong intercorrelation between trees within each major conifer species within and between areas. Regional composite tree-ring series for spruce and pine contain a major fraction of decadal and multidecadal variability. The most likely driver of this common variability is interannual to multidecadal climate variability. Gridded monthly instrumental climate data for the period 1902-2008, particularly mean temperature and total precipitation, were tested as predictors of each local species-specific tree-ring site chronology. The most consistent pattern emerged for spruce at all but the southernmost area. Cool and moist summers the year before growth were consistent drivers of spruce ring growth throughout the period, with no change in recent decades. Self-calibrating Palmer Drought Severity Index for prior summer was also a strong and consistent driver of spruce ring growth. For pine, there was a weaker but similarly stable association between larger rings and warm, moist conditions, in this case in the current summer. These associations were also identified at multidecadal time scales, particularly for spruce. On the other hand, the specific role of moisture variability in determining interannual to multidecadal variability in tree growth in this high latitude region raises questions about the relative vulnerability of spruce and pine there under global warming.
description: NOAA Template Raw Measurements file added 2020-01-15.
DOI: 10.25921/7qfn-wk15
title: NOAA/WDS Paleoclimatology - Arnold - Abbey Gatehouse and Number 1 The Square - QUSP - ITRDB BRIT074

description: Tree ring data from the International Tree Ring Data Bank and World Data Center for Paleoclimatology archives.  Most data sets include raw treering measurements (most are annual ring width, with some collections of earlywood or latewood width or wood density), plus chronologies (standardized growth indices for a site compiled from multiple treering samples). Reconstructions of climate variables are included with some of these data sets.  Each data type is stored in a separate data file; the data type is coded into the file name. For details please see: http://www.ncdc.noaa.gov/paleo/treeinfo.htmll
description: NOAA Template Raw Measurements file added 2020-03-09. July 2024: Elevation added by WDS-Paleo using get_elev_point() from the elevatr R package with the AWS Terrain Tiles (aws) and WGS 84 reference frame.
DOI: 10.25921/7g9y-xa36
title: NOAA/WDS Paleoclimatology - Hurford - Bremhill Court - QUSP - ITRDB BRIT075

description: Tree ring data from the International Tree Ring Data Bank and World Data Center for Paleoclimatology archives.  Most data sets include raw treering measurements (most are annual ring width, with some collections of earlywood or latewood width or wood density), plus chronologies (standardized growth indices for a site compiled from multiple treering samples). Reconstructions of climate variables are included with some of these data sets.  Each data type is stored in a separate data file; the data type is coded into the file name. For details please see: http://www.ncdc.noaa.gov/paleo/treeinfo.htmll
description: NOAA Template Raw Measurements file added 2020-03-09. July 2024: Elevation added by WDS-Paleo using get_elev_point() from the elevatr R package with the AWS Terrain Tiles (aws) and WGS 84 reference frame.
DOI: 10.17632/skbv76mvjw.1
title: Executive Summary: The Federal Trust Layer™ A Smart-Law Infrastructure for U.S. Financial Governance, Statutory Compliance, and Algorithmic Public Trust

description: This Executive Summary presents the foundational overview of The Federal Trust Layer™: A Smart-Law Infrastructure for U.S. Financial Governance, Statutory Compliance, and Algorithmic Public Trust. It outlines the legal, constitutional, and operational architecture of the first deterministic compliance system in U.S. history that transforms federal statutes into verifiable, executable smart contract logic.

CLEARfund™, the Doctrine’s first live deployment, is examined as a Regulation D–compliant, IRS-integrated smart contract platform. This document affirms that no new legislation is required and that no agency’s jurisdiction is displaced. Instead, statutory mandates are enforced in real time, under warrant-gated, privacy-preserving protocols that uphold the Fourth and Fifth Amendments.

Designed for policymakers, federal agencies, legal scholars, and system engineers, this summary bridges constitutional doctrine and code-bound enforcement. It emphasizes that The Federal Trust Layer™ does not expand surveillance—it codifies law. It does not challenge judicial authority—it honors it. This Executive Summary stands as a sovereign-grade legal invitation to translate compliance into executable trust—faithful, reviewable, and constitutionally secure.
DOI: 10.15468/dl.u2uhgd
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry MULTIPOLYGON (((-26.96589 -58.36433, -27.61792 -59.90104, -25.76785 -58.51853, -27.70377 -55.79396, -28.58542 -56.80644, -26.96589 -58.36433)), ((-34.79067 -55.53136, -34.14548 -55.21457, -34.49978 -54.54344, -35.2155 -54.87921, -34.79067 -55.53136)), ((-36.52066 -55.2248, -35.58744 -54.14982, -38.63233 -53.68947, -38.57219 -54.39066, -36.52066 -55.2248)), ((-42.477 -53.72133, -41.84247 -54.0149, -41.5345 -53.37776, -42.20665 -53.08188, -42.477 -53.72133)), ((-58.1507 -52.52516, -57.65815 -50.93993, -61.88942 -50.75011, -61.16166 -52.61936, -58.1507 -52.52516)), ((-69.08894 -56.83983, -63.35638 -54.52425, -68.75961 -52.0485, -72.8411 -52.92985, -73.36307 -47.65989, -75.62844 -47.31425, -75.18801 -52.99644, -69.08894 -56.83983)), ((-9.715629 -40.85298, -9.424597 -40.21732, -10.23883 -39.85659, -10.50991 -40.50774, -9.715629 -40.85298)))",
 "TaxonKey is Anthribidae",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0085828-250717081556266/datasets/export for details.
DOI: 10.15468/dl.c6xhr6
title: Occurrence Download

description: A dataset containing 7 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 "BasisOfRecord is one of (Human Observation, Machine Observation, Occurrence evidence, Observation)",
 "TaxonKey is one of (Euplectes albonotatus)",
 "Country is one of (Bermuda, Canada, Greenland, Saint Pierre and Miquelon, United States of America)"
 ]
}

 The dataset includes 7 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0085830-250717081556266/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.fwfg49
title: Occurrence Download

description: A dataset containing 8 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Casuarina equisetifolia",
 "Country is Kiribati",
 "HasCoordinate is true"
 ]
}

 The dataset includes 8 records from 5 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0078049-250717081556266/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.fybmpb
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 "BasisOfRecord is one of (Human Observation, Machine Observation, Occurrence evidence, Observation)",
 "TaxonKey is one of (Tarsiger cyanurus)",
 "Country is one of (Algeria, Angola, Benin, Botswana, British Indian Ocean Territory, Burkina Faso, Burundi, Cabo Verde, Cameroon, Central African Republic, Chad, Comoros, Congo, Congo, Democratic Republic of the, Côte d’Ivoire, Djibouti, Egypt, Equatorial Guinea, Eritrea, Eswatini, Ethiopia, French Southern Territories, Gabon, Gambia, Ghana, Guinea, Guinea-Bissau, Kenya, Lesotho, Liberia, Libya, Madagascar, Malawi, Mali, Mauritania, Mauritius, Mayotte, Morocco, Mozambique, Namibia, Niger, Nigeria, Réunion, Rwanda, Saint Helena, Ascension and Tristan da Cunha, Sao Tome and Principe, Senegal, Seychelles, Sierra Leone, Somalia, South Africa, South Sudan, Sudan, Tanzania, United Republic of, Togo, Tunisia, Uganda, Western Sahara, Zambia, Zimbabwe)"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0078051-250717081556266/datasets/export for details.
DOI: 10.7910/dvn/drtsui
title: Replication Data: IRRI Long Term Continuous Cropping Experiment 1981
title: IRRI LTCCE 1981

description: This study contains grain yield data collected from IRRI's long term continuous cropping experiment, 1981
description: application/txt
DOI: 10.3535/qah-dja-2td
title: †Axophyllia d'Orbigny, 1849

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/ybg-4nw-4a6
title: Porifera Grant, 1836

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/wpm-tq5-7n3
title: Cyphastrea microphthalma (Lamarck, 1816)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/y6r-g6z-b2c
title: Crinoidea Miller, 1821

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/35r-x6q-z56
title: Mammalia Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/9gk-zlg-n2q
title: Cnidaria

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/8ww-3x2-jsg
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/hxv-gmh-x7v
title: Crinoidea Miller, 1821

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/cxs-f08-5pz
title: Cnidaria

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/bfx-4rr-and
title: †Strophomenata Williams et al., 1996

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/dhx-211-azc
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/7tr-3rs-lew
title: Brachiopoda Duméril, 1805

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/9mh-pe3-lre
title: †Cladiscites gorgiae Gemmellaro, 1904

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/8sc-hma-9zv
title: †Goniopora astraeoides (Martin, 1880)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/yzk-6wf-wlv
title: †Favorites Tschigova, 1977

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/g3c-sgp-ghz
title: Cervus Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/mbl-n08-g2d
title: Cnidaria

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/qx6-hg1-prr
title: Cnidaria

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/xhd-9j5-tpb
title: Anthozoa

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/eec-z3x-s7b
title: Mammalia Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/xwe-kc0-dt8
title: Cnidaria

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/mh3-ddm-d0a
title: Brachiopoda Duméril, 1805

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/v04-hbd-e16
title: †Cyclonema J. Hall, 1852

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/3vc-wa1-kk8
title: Brachiopoda Duméril, 1805

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.