cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.3535/9pg-t37-br0
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/f0q-0za-4c4
title: Amphistegina lessonii d'Orbigny in Deshayes, 1830

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/6jh-ew2-p8d
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/hh7-ef5-smw
title: Mammalia Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/rdp-b73-1zf
title: Pseudothurmannia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/lbl-3r5-725
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/zkg-m6z-4d2
title: Teschenites

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.15468/dl.erpgvw
title: Occurrence Download

description: A dataset containing 4 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Ericthonius brasiliensis",
 "Country is South Africa",
 "HasCoordinate is true"
 ]
}

 The dataset includes 4 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0020007-250811113504898/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.3535/13a-7a8-76y
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/abd-f5x-3ea
title: Neolissoceras

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/f2p-yda-rbn
title: †Ammonoidea

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/gmj-j74-jsy
title: Globigerinoides ruber (d'Orbigny, 1839)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/4vx-nc1-e54
title: Calcarina quoyi d'Orbigny in Fornasini, 1908

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/5l3-lzy-513
title: Poroeponides lateralis (Terquem, 1878)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/ww0-hcb-bj5
title: †Bitubulogenerina Howe, 1934

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/ab9-qnf-lsz
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/nzz-9zt-2fg
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/6sh-ff6-1yq
title: Pseudobelus

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/kgm-nyq-bzl
title: †Alabamina solnaesensis Brotzen, 1948

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/vwb-j6s-t6b
title: Vaginulinopsis planata (Phleger & Parker, 1951)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/xep-yxr-7lz
title: Operculina d'Orbigny, 1826

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/p7d-93w-h92
title: Lenticulina septentrionalis (Cushman, 1923)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/1xk-37x-h76
title: Neolissoceras

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/w0r-yc7-gmr
title: Teschenites

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/g9z-hgz-vmd
title: Cuneocythere semipunctata (Brady, 1868)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/ceg-cgd-8fw
title: Quinqueloculina akneriana d'Orbigny, 1846

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/tlz-xms-lqm
title: Cervus Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/ska-82e-p3z
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/1lf-5em-562
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/9k1-3dp-c2r
title: Amphistegina lessonii d'Orbigny in Deshayes, 1830

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.25921/663x-mx79
title: NOAA/WDS Paleoclimatology - Paleoenvironmental Arctic Sciences (PARCS) Database

description: Effective global-scale research requires a clearly defined organizational framework through which a community of scientists may focus their energies. This intellectual and managerial structure frames the overarching questions and objectives, identifies the essential and most promising avenues of research and, if well conceived, preserves the community's flexibility to address the unexpected result. It is the purpose of this document to delineate an effective management structure and research directions that will enlarge our understanding of past changes in the Arctic environment, to understand better how those changes in the Arctic are related to the global environment, and to contribute to our ability to predict and respond to future changes. This document, a "science and implementation plan", has been prepared by the scientists engaged in paleoenvironmental research of the Arctic. It is a community effort designed to recognize the enhanced role of the paleosciences within the Arctic System Science (ARCSS) Program, and to firmly place the Arctic paleoscience research agenda within the global framework of the Earth System History (ESH) Program. The document briefly summarizes the background and research highlights accomplished over the last decade. In the light of these accomplishments, and with a new appreciation of the urgency and complexity of the global change problem, it is appropriate for the community to review the current status of knowledge, consider alterations in course, and explore new avenues of research. The product of two community meetings, and with the consideration of a broad representation of Arctic researchers, this document provides guidance from the community to the community. It reformulates essential research questions concerning Arctic paleoscience within the context of global environmental change, points out the most promising research directions and strategies for the near future, and provides a flexible management structure for the implementation of these strategies.
description: Multiproxy (lake sediments, tree rings, ice cores) Arctic paleoclimate data set, assembled in the 2000s for the Paleoenvironmental Arctic Sciences (PARCS) Database.
DOI: 10.25921/6rb3-0w17
title: NOAA/WDS Paleoclimatology - Northwest Ontario 2,000 Year Lake Depth Reconstructions

description: Multi-decadal to centennial-scale shifts in effective moisture over the past two millennia are inferred from sedimentary records from six lakes spanning a ~250 km region in northwest Ontario. This is the first regional application of a technique developed to reconstruct drought from drainage lakes (open lakes with surface outlets). This regional network of proxy drought records is based on individual within-lake calibration models developed using diatom assemblages collected from surface sediments across a water-depth gradient. Analysis of diatom assemblages from sediment cores collected close to the near-shore ecological boundary between benthic and planktonic diatom taxa indicated this boundary shifted over time in all lakes. These shifts are largely dependent on climate-driven influences, and can provide a sensitive record of past drought. Our lake-sediment records indicate two periods of synchronous signals, suggesting a common large-scale climate forcing. The first is a period of prolonged aridity during the Medieval Climate Anomaly (MCA, c. 900-1400 CE). Documentation of aridity across this region expands the known spatial extent of the MCA megadrought into a region that historically has not experienced extreme droughts such as those in central and western north America. The second synchronous period is the recent signal of the past ~100 years, which indicates a change to higher effective moisture that may be related to anthropogenic forcing on climate. This approach has the potential to fill regional gaps, where many previous paleo-lake depth methods (based on deeper centrally located cores) were relatively insensitive. By filling regional gaps, a better understanding of past spatial patterns in drought can be used to assess the sensitivity and realism of climate model projections of future climate change. This type of data is especially important for validating high spatial resolution, regional climate models.
description: Notes added by NAm2k hydroclimate authors: Dixie Lake: RMSEP of diatom-inferred depth is 1.4 m; hence only larger trends likely significant.
ELA Lake 239: Note added by NAm2k hydroclimate authors: Large directional shifts (ca 300, 1470 yr BP) probably robust; smaller high-frequency changes in depth likely outside precision of the model (explicit error estimates not presented in paper).

ELA Lake 442: RMSEP of diatom-inferred depth is 1.4 m; hence only post AD 1800 trend likely statistically significant.

Gall Lake: RMSEP of diatom inferred depth is 2.7 m; hence only large-scale trends are likely robust.

Little Raleigh: RMSEP of diatom-inferred depth is 1.2 m; hence only directional shift at ca 1000 yr BP is likely robust.

Meekin Lake: RMSEP of diatom-inferred depth transfer function is 1.3 m; hence increase after 1800 likely robust, smaller shifts may not be.
DOI: 10.25921/6k91-cx41
title: NOAA/WDS Paleoclimatology - Krusic - Mount Smolikas EHS01 - PIHE - ITRDB GREE013

description: We present a June-July drought reconstruction based on the standardized precipitation index (SPI) for the Balkan Peninsula over the period 730-2015 CE. The reconstruction is developed using a composite Pinus heldreichii tree-ring width chronology, from a high-elevation network of eight sites in the Pindus Mountains in northwest Greece, composed of living trees and relict wood. The dataset includes the ring width series of Europe's currently oldest known living tree, dendrochronologically dated to be more than 1075 years old. The spatial coverage of the reconstruction is improved by using an averaged gridded SPI data target derived from a response field that is located north of the study region. Justification for this approach includes the remoteness of instrumental data, the spatial variability of precipitation and synoptic scale circulation patterns. Over the past 1286 years, there have been 51 dry and 43 pluvial events. The driest year during the 1286-year-long period was 1660 and the wettest year was 1482. Comparison with shorter reconstructions and documentary evidence validates the new reconstruction, and provides additional insight into socioeconomic impacts and spatial patterns of extreme events. Fifty-nine of 72 previously undescribed extremes occurred prior to the 17th century. The new reconstruction reveals long-term changes in the number of extremes, including substantially fewer drought and pluvial events in the 20th century. Additional tests on the long-term effects of age structure, replication and covariance changes support the heteroscedastic nature of the reconstructed hydro-climatic extremes.
description: Collection EHS01: Northwest exposure NOAA Template Raw Measurements file added 2019-02-05.
DOI: 10.25921/6t87-jt68
title: NOAA/WDS Paleoclimatology - Paleo-pCO2 Database ODP668B 2 Million Year Boron Isotope and CO2 Data

description: The dominant period of Pleistocene glacial cycles changed during the mid-Pleistocene from 40,000 years to 100,000 years, for as yet unknown reasons. Here we present a 2.1-million-year record of sea surface partial pressure of CO2 (Pco2), based on boron isotopes in planktic foraminifer shells, which suggests that the atmospheric partial pressure of CO2 (pco2) was relatively stable before the mid-Pleistocene climate transition. Glacial Pco2 was ~31 microatmospheres higher before the transition (more than 1 million years ago), but interglacial Pco2 was similar to that of late Pleistocene interglacial cycles (<450,000 years ago). These estimates are consistent with a close linkage between atmospheric CO2 concentration and global climate, but the lack of a gradual decrease in interglacial Pco2 does not support the suggestion that a long-term drawdown of atmospheric CO2 was the main cause of the climate transition.
description: Paleo-CO2 derived from boron isotope measurements on marine sediment core ODP668B for the past 2 million years, contributed to the Paleo-pCO2 Database
DOI: 10.25921/6k58-qg02
title: NOAA/WDS Paleoclimatology - Sullivan - Tanana Valley - PCMA - ITRDB AK155

description: Boreal forests are critical sinks in the global carbon cycle. However, recent studies have revealed increasing frequency and extent of wildfires, decreasing landscape greenness, increasing tree mortality and declining growth of black and white spruce in boreal North America. We measured ring widths from a large set of increment cores collected across a vast area of interior Alaska and examined implications of data processing decisions for apparent trends in black and white spruce growth. We found that choice of detrending method had important implications for apparent long-term growth trends and the strength of climate-growth correlations. Trends varied from strong increases in growth since the Industrial Revolution, when ring widths were detrended using single-curve regional curve standardization (RCS), to strong decreases in growth, when ring widths were normalized by fitting a horizontal line to each ring width series. All methods revealed a pronounced growth peak for black and white spruce centered near 1940. Most detrending methods showed a decline from the peak, leaving recent growth of both species near the long-term mean. Climate-growth analyses revealed negative correlations with growing season temperature and positive correlations with August precipitation for both species. Multiple-curve RCS detrending produced the strongest and/or greatest number of significant climate-growth correlations. Results provide important historical context for recent growth of black and white spruce. Growth of both species might decline with future warming, if not mitigated by increasing precipitation. However, widespread drought-induced mortality is probably not imminent, given that recent growth was near the long-term mean.
description: NOAA Template Raw Measurements file added 2019-02-08.
DOI: 10.25921/6gdy-rh26
title: NOAA/WDS Paleoclimatology - Southwest Florida 1,000 Year Paleotempestology Grain Size Data

description: Recent research has proposed that human-induced sea surface temperature (SST) warming has led to an increase in the intensity of hurricanes over the past 30 years. However, this notion has been challenged on the basis that the instrumental record is too short and unreliable to reveal long-term trends in hurricane activity. This study addresses this limitation by investigating hurricane-induced overwash deposits (paleotempestites) behind a barrier island in Naples, FL, USA. Paleotempestologic proxies including grain size, percent calcium carbonate, and fossil shells species were used to distinguish overwash events in two sediment cores spanning the last one thousand years. Two prominent paleotempestites were observed in the top 20 cm of both cores: the first identified as Hurricane Donna in 1960 whereas an older paleotempestite (1900-1930) could represent one of three documented storms in the early 1900s. An active period of hurricane overwash from 1000 to 500 yrs. BP and an inactive period from 500 to 150 yrs. BP correlate with reconstructed SSTs from the Main Development Region (MDR) of the North Atlantic Ocean. We observe an increased number of paleotempestites when MDR SSTs are warmer, coinciding with the Medieval Warm Period, and very few paleotempestites when MDR SSTs are cooler, coinciding with the Little Ice Age. Results from this initial Southwest Florida study indicate that MDR SSTs have been a key long-term climate driver of intense Southwest Florida hurricane strikes.
description: Sediment physical properties (moisture content, % grain size >2mm) and geochemistry (percent carbonate) data and interpreted Intense Hurricane frequency from two sediment cores collected in Island Bay, Keewaydin Island, Southwest Florida
DOI: 10.25921/6rma-7j85
title: NOAA/WDS Paleoclimatology - Mt. Hunter, Alaska 230 Year Ice Core Melt Layer Data

description: Warming in high-elevation regions has societally important impacts on glacier mass balance, water resources, and sensitive alpine ecosystems, yet very few high-elevation temperature records exist from the middle or high latitudes. While a variety of paleoproxy records provide critical temperature records from low elevations over recent centuries, melt layers preserved in alpine glaciers present an opportunity to develop calibrated, annually-resolved temperature records from high elevations. Here we present a 400-year temperature proxy record based on the melt-layer stratigraphy of two ice cores collected from Mt. Hunter in Denali National Park in the Central Alaska Range. The ice core record shows a 60-fold increase in water equivalent total annual melt between the pre-industrial period (before 1850 CE) and present day. We calibrate the melt record to summer temperatures based on weather station data from the ice core drill site, and find that the increase in melt production represents a summer warming rate of at least 1.92 +/- 0.31C/century during the last 100 years, exceeding rates of temperature increase at most low elevation sites in Alaska. The Mt. Hunter melt layer record is significantly (p < 0.05) correlated with surface temperatures in the central tropical Pacific through a Rossby-wave like pattern that enhances high temperatures over Alaska. Our results show that rapid alpine warming has taken place in the Alaska Range for at least a century and that conditions in the tropical oceans contribute to this warming.
description: Melt layer stratigraphic data from the Mt. Hunter ice core
DOI: 10.25921/67eb-rz77
title: NOAA/WDS Paleoclimatology - Barclay - Tebenkof Glacier Hemlock B - TSME - ITRDB AK168

description: Tree-ring crossdates from glacially killed logs show that Tebenkof Glacier advanced into a forefield forest in the AD 710s and 720s. Recession from this First Millennium AD (FMA) advance occurred before the 950s, after which the ice margin readvanced in the 1280s to 1320s at the start of the Little Ice Age (LIA). A more extensive LIA advance was underway from the 1640s to 1670s, and the terminus stayed at or near its LIA maximum until the 1890s. These are the first absolute tree-ring crossdates for a FMA glacier advance in North America and support growing evidence from northwestern North America and Europe for a significant cool interval in the centuries around AD 500.
description:  NOAA Template Chronology file added 2020-05-12.
DOI: 10.25921/6nh9-e394
title: NOAA/WDS Paleoclimatology - Zabieniec Bog, Poland 14,000 Year Chironomid-Inferred July Temperature

description: Subfossil Chironomidae assemblages were studied in a sediment sequence from Zabieniec bog in central Poland. The climate history and habitat changes in the palaeo-lake were reconstructed from these assemblages. Currently no chironomid-based climate calibration set is available from Poland and so past mean July air temperatures were inferred from chironomid-climate calibration data-sets from Norway, Russia, and Switzerland. During the Late Weichselian the three calibration functions from these data-sets provided similar temperature inferences but there was some divergence in the reconstructions for the Younger Dryas and Holocene. In the late Pleniglacial, inferred summer air temperature was relatively low (8-12 C) and the lake was oligotrophic. At about 16.5 ka BP, temperature rapidly rose to 15 C and assemblage diversity substantially increased. During the interstadial, temperature stayed at this level. In the Younger Dryas, July air temperature was only 1-2 C lower than in the interstadial, as inferred from the Norwegian calibration data-set, whereas the Russian and Swiss calibration functions did not indicate any temperature decrease. From the beginning of the Holocene, taxa typical of meso-eutrophic conditions dominated. There was an increased abundance of phytophilous species and the assemblage composition was also influenced by changes in water-level. Palaeotemperature reconstructions differed in their values. From 8.0 to 8.7 ka BP, inferences based on the Swiss and Russian data-sets indicated a cold oscillation while reconstructions based on the Norwegian data-set did not show any temperature decrease. After 2.5 ka BP assemblage diversity and head-capsule concentrations decreased. In the last millennium semi-terrestrial taxa dominated, except from Late Medieval to Early Modern times when shallow-water species reappeared.
description: Chironomid-inferred July temperature for Zabieniec Bog, Poland for the past 14,000 years
DOI: 10.25921/6hw2-b154
title: NOAA/WDS Paleoclimatology - Lake Hayes, New Zealand Last Deglacial Biomarker and Carbonate Data

description: Millennial-scale climate anomalies punctuating the last deglaciation were expressed differently in the Northern and Southern Hemispheres. While oceanic meridional overturning has been invoked to explain these disparities, the nearly synchronous onset of such events requires atmospheric mediation. Yet the extent and structure of atmospheric reorganization on millennial timescales remains unclear. In particular, the role of the Southern Hemisphere westerly winds (SHWW) and associated storm tracks is poorly constrained, largely due to the paucity of accessible archives of wind behavior. Here we present a new paleohydrologic record from a Lake Hayes, New Zealand (45 S) sediment core spanning ~17 ka. Using two independent proxies for lake hydrology (Ca/Ti in sediments and dD values of aquatic plant biomarkers), we find evidence for a wetter Antarctic Cold Reversal (ACR, 14.7-13.0 ka) and a drying trend during the Younger Dryas (YD, 12.9-11.6 ka) and early Holocene (11.7 ka onward in this record). Comparisons of the Lake Hayes record with other Southern Hemisphere sites indicate coherent atmospheric shifts during the ACR and YD. Several mechanisms, such as the retreat of Antarctic sea ice, could explain the shifts in the westerlies and decoupling between Southern Hemisphere low- and mid-latitude climates in the early Holocene.
description: Hydrogen isotopes from n-alkanes of varying lengths, and Ca/Ti as a proxy for endogenic carbonate production, from sediments collected in Lake Hayes, New Zealand.