cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15468/dl.f5937w
title: Occurrence Download

description: A dataset containing 137 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 one of (Gentiana wilsonii)"
 ]
}

 The dataset includes 137 records from 9 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0018241-251009101135966/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.u8kx2q
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Casuariiformes)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1980",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 },
 "Geometry POLYGON((-170 -50,-160 -50,-160 -40,-170 -40,-170 -50))"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0018242-251009101135966/datasets/export for details.
DOI: 10.15468/dl.wz32za
title: Occurrence Download

description: A dataset containing 4535 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Hippocamelus bisulcus (Molina, 1782)"
 ]
}

 The dataset includes 4535 records from 24 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010387-250426092105405/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.dmr655
title: Occurrence Download

description: A dataset containing 1406472 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Digitalis lutea L., Digitalis purpurea L., Digitalis thapsi L., Digitaria ciliaris (Retz.) Koeler, Digitaria ischaemum (Schreb.) Muhl., Digitaria sanguinalis (L.) Scop., Dipcadi serotinum (L.) Medik., Lycopodium alpinum L., Diphasiastrum Holub, Lycopodium tristachyum Pursh, Diplotaxis muralis (L.) DC., Diplotaxis tenuifolia (L.) DC., Dipsacus fullonum L., Dipsacus pilosus L., Dipsacus strigosus Willd., Dittrichia graveolens (L.) Greuter, Dittrichia viscosa (L.) Greuter, Doronicum austriacum Jacq., Doronicum carpetanum Boiss. & Reut. ex Willk., Doronicum clusii (All.) Tausch, Doronicum columnae Ten., Doronicum glaciale (Wulfen) Nyman, Doronicum grandiflorum Lam., Doronicum hungaricum Rchb.fil., Doronicum pardalianches L., Lotus germanicus (Gremli) Peruzzi, Lotus graecus L., Lotus herbaceus (Vill.) Jauzein, Lotus hirsutus L., Lotus dorycnium L.)",
 "HasCoordinate is true"
 ]
}

 The dataset includes 1406472 records from 4470 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0003636-250525065834625/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25921/vz64-4643
title: NOAA/WDS Paleoclimatology - Aleutian Islands 225 Year Coralline Algae Growth Increment Data

description: Bering Sea climate and ecosystem dynamics have recently undergone major changes that have affected seasonal sea ice distribution and marine life, including commercially important salmon fisheries. Unfortunately, long-term Bering Sea dynamics are poorly understood, largely because of an absence of high-resolution marine proxy archives. Here we present the first record compiled from annual growth-increment widths of long-lived coralline algae collected in shallow-water habitats spanning the entire Aleutian Islands. While algal growth in the Aleutians exhibits a variable relationship with regional temperatures, it is strongly driven by changes in solar radiation reaching the seafloor. Therefore, it provides an exceptional archive of long-term light dynamics, which in the Bering Sea is attributed to changes in strength of the Aleutian Low (AL), the dominant climate pattern of the subarctic North Pacific. The AL is positively related to Bering Sea cloudiness and wind strength, which in turn fosters upper-ocean mixing. Mixing raises surface-water nutrient concentrations and stimulates plankton production, which is positively linked to Alaskan salmon abundance. Enhanced clouds and plankton production increase shading on the shallow seafloor and reduce algal growth. Light-driven algal growth rates track proxy-derived salmon abundance from 1782 onward, but are poorly related to temperature-dominated Pacific Decadal Oscillation (PDO) variability prior to the twentieth century. The algal record suggests that the present-day relationship of AL and PDO varied historically and that salmon stocks have been more closely related to AL strength via its effect on plankton abundance rather than PDO-related temperatures.
description: 225 year growth chronology of the coralline alga Clathromorphum nereostratum, 
derived from 29 samples collected off the Aleutian Islands, Alaska. 
C. nereostratum is a long-lived, shallow-marine crustose coralline algae. 
The 225 yr growth-increment width composite chronology was derived from 29 
digitally imaged thick sections of coralline algae ranging from 15 to 185 yr 
in ontogenetic age, collected live along a 1500 km longitudinal transect 
spanning the entire Aleutian Islands. The composite chronology was constructed 
by normalizing time series to unit variance and averaging of the individual 
records.
DOI: 10.15468/dl.73dj6t
title: Occurrence Download

description: A dataset containing 16 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Gracula religiosa",
 "Country is United Arab Emirates",
 "HasCoordinate is true"
 ]
}

 The dataset includes 16 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0024597-251009101135966/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25921/vvs8-wb17
title: NOAA/WDS Paleoclimatology - Kongressvatnet, Svalbard, 1800 Year Lake Sediment Alkenone Paleotemperature

description: The Arctic region is subject to a great amplitude of climate variability and is currently undergoing large-scale changes due in part to anthropogenic global warming. Accurate projections of future change depend on anticipating the response of the Arctic climate system to forcing, and understanding how the response to human forcing will interact with natural climate variations. The Svalbard Archipelago occupies an important location for studying patterns and causes of Arctic climate variability; however, available paleoclimate records from Svalbard are of restricted use due to limitations of existing climate proxies. Here we present a sub-decadal- to multidecadal-scale record of summer temperature for the past 1800 yr from lake sediments of Kongressvatnet on West Spitsbergen, Svalbard, based on the first instrumental calibration of the alkenone paleothermometer. The age model for the High Arctic lake sediments is based on 210Pb, plutonium activity, and the first application of tephrochronology to lake sediments in this region. We find that the summer warmth of the past 50 yr recorded in both the instrumental and alkenone records was unmatched in West Spitsbergen in the course of the past 1800 yr, including during the Medieval Climate Anomaly, and that summers during the Little Ice Age (LIA) of the 18th and 19th centuries on Svalbard were not particularly cold, even though glaciers occupied their maximum Holocene extent. Our results suggest that increased wintertime precipitation, rather than cold temperatures, was responsible for LIA glaciations on Svalbard and that increased heat transport into the Arctic via the West Spitsbergen Current began ca. A.D. 1600.
description: 1800-year UK37 and inferred summer temperature reconstruction based on alkenone unsaturation in lake Kongressvatnet, western Svalbard. Included data: UK37 measurements, inferred temperature, depth, age; UK37 calibration data table; Major oxides from all measured isolated tephra grains; Age-depth model data (210Pb & 239+240Pu ages and tephra ages)
DOI: 10.15468/dl.cyyew4
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Gracula religiosa",
 "Country is United Kingdom of Great Britain and Northern Ireland",
 "HasCoordinate is true"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0024598-251009101135966/datasets/export for details.
DOI: 10.25921/vs8v-ak89
title: NOAA/WDS Paleoclimatology - Cook - Northern New Jersey Region historical oak - QUSP - ITRDB NJ009

description: Six water emergencies have occurred since 1981 for the New York City region (NYC) despite: 1) its perhumid climate, 2) substantial conservation of water since 1979 and 3) meteorological data showing little severe or extreme drought since 1970. We reconstruct 472 years of moisture availability for the NYC watershed to place these emergencies in long-term hydroclimatic context. Using nested reconstruction techniques, 32 tree-ring chronologies comprised of 12 species account for up to 66.2% of the average May-August Palmer Drought Severity Index. Verification statistics indicate good statistical skill from 1531-2003. The use of multiple tree species, including rarely-used species that can sometimes occur on mesic sites like Liriodendron tulipifera, Betula lenta and Carya spp., seems to aid reconstruction skill. Importantly, the reconstruction captures pluvial events in the instrumental record nearly as well as drought events and is significantly correlated to precipitation over much of the northeastern US. While the mid-1960s drought is a severe drought in the context of the new reconstruction, the region experienced repeated droughts of similar intensity, but greater duration during the 16th and 17th centuries. The full record reveals a trend towards more pluvial conditions since ca 1800 that is accentuated by an unprecedented, 43-year pluvial event that continues through 2011. In the context of the current pluvial, decreasing water usage, but increasing extra-urban pressures, it appears that the water supply system for the greater NYC region could be severely stressed if the current water boom shifts towards hydroclimatic regimes like the 16th and 17th centuries.
description: This collection of Quercus subgenera Leucobalanus raw ring widths was made from historical timbers and structures by E. Cook in and around the greater northern New Jersey region. Many of the samples are likely Quercus alba, but there could be some Q. montana (formerly Q. prinus) in this collection. We cannot say anything about forest conditions from which these samples originally grew. However, there are growth release patterns in some series that are similar to those seen in trees from dense forest. Therefore, it might be useful to consider detrending these raw data with closed-canopy or forest interior conditions in mind.
# 
# These data were combined with the Uttertown chestnut oak (Q. montana/prinus) data recently deposited into the ITRDB.
#  NOAA Template Raw Measurements file added 2019-02-08. 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/vsm6-p522
title: NOAA/WDS Paleoclimatology - TALDICE Ice Core 8-25KYrBP Oxygen Isotope Data

description: Ice-core records of climate from Greenland and Antarctica show asynchronous temperature variations on millennial timescales during the last glacial period. The warming during the transition from glacial to interglacial conditions was markedly different between the hemispheres, a pattern attributed to the thermal bipolar see-saw. However, a record from the Ross Sea sector of East Antarctica has been suggested to be synchronous with Northern Hemisphere climate change.  Here we present a temperature record from the Talos Dome ice core, also located in the Ross Sea sector. We compare our record with ice-core analyses from Greenland, based on methane synchronization, and find clearly asynchronous temperature changes during the deglaciation. We also find distinct differences in Antarctic records, pointing to differences in the climate evolution of the Indo-Pacific and Atlantic sectors of Antarctica. In the Atlantic sector, we find that the rate of warming slowed between 16,000 and 14,500 years ago, parallel with the deceleration of the rise in atmospheric carbon dioxide concentrations and with a slight cooling over Greenland. In addition, our chronology supports the hypothesis that the cooling of the Antarctic Cold Reversal is synchronous with the Bølling-Allerød warming in the northern hemisphere 14,700 years ago.
description: Oxygen isotope profile from 512m to 898m in the TALDICE Project 
Talos Dome Ice Core.  Optimal accuracy of ± 0.05‰ (1 sigma). 
TD is a peripheral dome of East Antarctica, located in the Ross 
Sea sector about 250 km from the Southern Ocean, 550 km north of 
Taylor Dome and 1100 km east of EDC. The TALDICE coring site 
(159°11'E 72°49'S; 2315 m a.s.l.; annual mean temperature -41°C) 
is located near the dome summit and is characterised by a snow 
accumulation rate of 80 mm water equivalent per year 
(average 2004-1259 AD).
DOI: 10.25921/vnx7-3n60
title: NOAA/WDS Paleoclimatology - Wright - Reef of Rocks - PSME - AZ557, PAGES North America 2k Version

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
DOI: 10.25921/vq7s-g458
title: NOAA/WDS Paleoclimatology - Buckley - Bidoup Nui Ba National Park - FOHO - ITRDB VIET001

description: The "hydraulic city" of Angkor, the capitol of the Khmer Empire in Cambodia, experienced decades-long drought interspersed with intense monsoons in the fourteenth and fifteenth centuries that, in combination with other factors, contributed to its eventual demise. The climatic evidence comes from a seven-and-a-half century robust hydroclimate reconstruction from tropical southern Vietnamese tree rings. The Angkor droughts were of a duration and severity that would have impacted the sprawling city's water supply and agricultural productivity, while high-magnitude monsoon years damaged its water control infrastructure. Hydroclimate variability for this region is strongly and inversely correlated with tropical Pacific sea surface temperature, indicating that a warm Pacific and El Nino events induce drought at interannual and interdecadal time scales, and that low-frequency variations of tropical Pacific climate can exert significant influence over Southeast Asian climate and society. 
description:  NOAA Template Chronology file added 2018-12-19. NOAA Template Raw Measurements file added 2019-04-08.
DOI: 10.25921/vwbx-8b89
title: NOAA/WDS Paleoclimatology - Wiles - Kodiak Island - PCSI - ITRDB AK108

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 2019-02-08.
DOI: 10.25921/vema-tq07
title: NOAA/WDS Paleoclimatology - Crystal Cave, California 1150 Year d18O Data and SST Reconstruction

description: Precipitation in southwestern North America has exhibited significant natural variability over the past few thousand years. This variability has been attributed to sea surface temperature regimes in the Pacific and Atlantic oceans, and to the attendant shifts in atmospheric circulation patterns. In particular, decadal variability in the North Pacific has influenced precipitation in this region during the twentieth century, but links to earlier droughts and pluvials are unclear. Here we assess these links using δ18O data from a speleothem from southern California that spans AD 854-2007. We show that variations in the oxygen isotopes of the speleothem correlate to sea surface temperatures in the Kuroshio Extension region of the North Pacific, which affect the atmospheric trajectory and isotopic composition of moisture reaching the study site. Interpreting our speleothem data as a record of sea surface temperatures in the Kuroshio Extension, we find a strong 22-year periodicity, suggesting a persistent solar influence on North Pacific decadal variability. A comparison with tree-ring records of precipitation during the past millennium shows that some droughts occurred during periods of warmth in the Kuroshio Extension, similar to the instrumental record. However, other droughts did not and instead must have been influenced by other factors. Finally, we find a significant increase in sea surface temperature variability over the past 150 years, which may reflect an influence of greenhouse gas concentrations on variability in the North Pacific.
description: Speleothem oxygen isotope (d18O) record and Kuroshio Extension (KE) SST anomalies reconstructed from the isotope data. 
The record spans 854 - 2007 AD and is based on a speleothem (CRC-3) collected from Crystal Cave, located in Sequoia National Park, California.
DOI: 10.25921/vp0x-tr67
title: NOAA/WDS Paleoclimatology - Barrett fire data from Crater Lake - IMPD USCRL001

description: Although recent climatic warming has markedly increased fire activity in many biomes, this trend is spatially heterogeneous. Understanding the patterns and controls of this heterogeneity is important for anticipating future fire-regime shifts at regional scales and for developing land-management policies. To assess climatic and land-cover controls on boreal-forest fire regimes, we conducted macroscopic-charcoal analysis of sediment cores and GIS analysis of landscape variation in south-central Alaska. Results reveal that fire occurrence was highly variable both spatially and temporally over the past seven millennia. At two of four sites, the lack of distinct charcoal peaks throughout much of this period suggests the absence of large local fires, attributed to abundant water bodies in the surrounding landscape that have likely functioned as firebreaks to limit fire spread. In contrast, distinct charcoal peaks suggest numerous local fires at the other two sites where water bodies are less abundant. In periods of the records where robust charcoal peaks allow identification of local fire events over the past 7000 years, fire return intervals varied widely with a range of 138-453 years. Furthermore, the temporal trajectories of local-fire frequency differed greatly among sites and were statistically independent. Inferred biomass burning and mean summer temperature in the region were not significantly correlated prior to 3000 years ago, but became positively related subsequently with varying correlation strengths (r = 0.40-0.66; p = 0.001-0.040 for 2000-yr moving windows). Climatic variability associated with the Medieval Climate Anomaly and the Little Ice Age, along with the expansion of flammable Picea mariana forests, probably have heightened the sensitivity of forest burning to summer-temperature variations over the past three millennia. These results elucidate the patterns and controls of boreal fire-regime dynamics over a broad range of spatiotemporal scales, and imply that anthropogenic climatic warming and associated land-cover changes, in particular lake drying, will interact to affect boreal-forest burning over the coming decades.
DOI: 10.25921/va32-qb05
title: NOAA/WDS Paleoclimatology - Stambaugh fire data from Kisatchie Hills - IMPD USKSH001

description: Question: How frequent and variable were fire disturbances in longleaf pine ecosystems?  How has the frequency and seasonality of fire events changed during the past few centuries?
Location: Kisatchie National Forest, Western Gulf Coastal Plain, longleaf pine-bluestem ecosystem, in relatively rough topography adjacent to the Red River, Louisiana, USA.
Methods: Nineteen cross-sections of remnant dead pines exhibiting 190 fire scars were collected from a 1.2 km2 area.  Tree-rings and fire scars were dated and analyzed for the purpose of characterizing past changes in fire and tree growth.  Temporal variability in fire occurrence and seasonality was described for the pre- and post-European settlement periods.  Seasonality of historic fires was determined by the scar position within the rings. The relationship between fire and drought was investigated using correlation and superposed epoch analysis.
Results: The mean fire return interval for the period 1650-1905 was 2.2 years (range 0.5 to 12).  Significant new findings include: evidence for years of biannual burning, temporal variability in fire seasonality, an increase in fire frequency and percent trees circa 1790, and synchronous growth suppression and subsequent release of trees coinciding with land use changes near the turn of the 20th century.  Drought conditions appeared unrelated to the occurrence of fire events or fire seasonality.
Conclusions:  Few multi-century fire history records exist in longleaf pine ecosystems due to the species' high resistance to scarring; however, our results indicate new potential for reconstructing fire history in this ecosystem.  Fire scars quantitatively documented one of the most frequent fire regimes in the U.S.  New information such as the temporal variability in fire intervals, late-growing season dominated events, biannual burning, and changes in tree-growth provide a new perspective on the dynamics of longleaf pine fire regimes.
description: These samples were collected for fire scar history reconstruction.  Samples
were collected from tree stumps and dead standing trees.  Although the
species is unknown they are likely longleaf pine (Pinus palustris).
DOI: 10.25921/vnr9-bg71
title: NOAA/WDS Paleoclimatology - Bigler - Vals GR Riefawald - LADE - ITRDB SWIT192

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 Chronology file added 2018-12-19. NOAA Template Raw Measurements file added 2019-02-05.