cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.25921/530d-dc79
title: NOAA/WDS Paleoclimatology - Guadalcanal Speleothem 600 Year Stable Isotope Data

description: Modern Pacific decadal variability (PDV) has global impacts; hence records of PDV from the pre-instrumental period are needed to better inform models that are used to project future climate variability. We focus here on reconstructing rainfall in the western tropical Pacific (Solomon Islands; ~ 9.5° S, ~160° E), a region directly influenced by PDV, using cave deposits (stalagmite). A relationship is developed between d18O variations in the stalagmite and local rainfall amount to produce a 600 yr record of rainfall variability from the South Pacific Convergence Zone (SPCZ). We present evidence for large (~1.5 m), abrupt, and periodic changes in total annual rainfall amount on decadal to multidecadal timescales since 1423 ± 5 CE (Common Era) in the Solomon Islands. The timing of the decadal changes in rainfall inferred from the 20th century portion of the stalagmite d18O record coincides with previously identified decadal shifts in PDV-related Pacific ocean-atmosphere behavior (Clement et al., 2011; Deser et al., 2004). The Solomons record of PDV is not associated with variations in external forcings, but rather results from internal climate variability. The 600 yr Solomon Islands stalagmite d18O record indicates that decadal oscillations in rainfall are a persistent characteristic of SPCZ-related climate variability.
description: Stalagmite stable isotope (d18O and d13C) data from 2 stalagmites collected in Forestry Cave, 
on the island of Guadalcanal, in the Solomon Islands. Data consists of a table of 45 U-Th disequilibrium dates, 
and a table of sample depth, age, and d18O and d13C for continuous transects milled from stalagmites 10FC-02 and 
05FC-04 at 500um or 300um increments. Age and age uncertainty (reported here at ±1s) was assigned to each stable 
isotope measurement using the U-Th dates and the methods of Partin et al. 2013. 
The top age of 10FC-02 is assumed to be the year of stalagmite collection, 2010. 05FC-04 was collected broken 
from the cave floor. All dates are reported as Year Common Era (CE). All stable isotope measurements are reported 
relative to the VPDB standard. Missing stable isotope values are indicated by NaN. 
 
NOTE: All U-Th dates, including the last 12, in the manuscript-displayed version of the 10FC-02 U-Th data table 
are in order of INCREASING depth. The depths displayed with the last 12 dates in the manuscript are numerically 
accurate, but are not in correct order of increasing depth. The dates themselves, however, are in proper order. 
Please use the table in this data archive.
DOI: 10.25921/54et-zz30
title: NOAA/WDS Paleoclimatology - Büntgen - Rygiebopotokuwos - PCAB - ITRDB POLA031

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 2019-02-05.
DOI: 10.25921/5z8h-gg29
title: NOAA/WDS Paleoclimatology - Paritsis - Cerro Bayo - NOPU - ITRDB ARGE130

description: In the temperate forests of the southern Andes, Nothofagus pumilio, the dominant species of the most extensive forest type, experiences severe defoliation caused by caterpillars of the Ormiscodes genus (Lepidoptera: Saturniidae). This study uses tree rings to reconstruct the history of Ormiscodes outbreaks for the 1850-2005 period and examines relationships between outbreaks and climate variability. We used local climate records to compare outbreak-climate relationships in the northern Patagonian Andes (c. 41°S) and the cooler southern Patagonian Andes (c. 49°S). We also examined relationships between outbreak events and regional climate variability driven by variability in the Southern Annular Mode (SAM) and the El Niño-Southern Oscillation. Although relationships between Ormiscodes outbreaks and climate proved to be complex, in northern Patagonia defoliation events are associated with drier and warmer than average growing seasons. Warming and drying trends in Patagonia during the latter part of the 20th century have been linked to a positive trend in SAM. During the post-1976 period of accelerated warming in Patagonia, widespread defoliation outbreaks have occurred in both northern and southern Patagonia but the increase in frequency of events has been greater in the south. In southern Patagonia the increases in frequency of outbreaks in the late 20th century appear to be unprecedented over the c. 150 year tree-ring record of reconstructed outbreaks. These results are consistent with the greater magnitude of recent warming in southern Patagonia, and suggest that under predicted warmer and drier climates in the 21st century, defoliator outbreaks may continue to increase in frequency. This study is the first systematic reconstruction of past insect outbreaks in South America and provides a preliminary understanding of how climate variability affects defoliator outbreaks in Patagonian Nothofagus forests.
description: Purpose of Collection:
# Ecology - insect outbreaks
# 
# Cores are stored at:
# Biogeography Lab, Geography Department, University of Colorado at Boulder
# 
# Notes:
# Most tree ring samples were collected during the growing season, so the most recent ring 
# is not a complete ring. The most recent ring was therefore not used in the analysis by 
# Paritsis and Veblen (2011). NOAA Template Raw Measurements file added 2019-04-29.
DOI: 10.25921/5y87-d742
title: NOAA/WDS Paleoclimatology - Büntgen - Ovronnaz - LADE - ITRDB SWIT310

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: Collection purpose: 
# dendroclimatology
# 
# 
# Cores are stored at: 
# WSL
# 
# 
# Notes: 
# Formerly rw00504ovr11
# 
# References:
# Buntgen et al: (2006) Journal of Climate; (2006) TRACE; (2006) Trees; 
# (2005) Climate Dynamics; (2005) TRACE; (2008) GCB;  NOAA Template Raw Measurements file added 2019-02-05.
DOI: 10.13140/rg.2.2.12648.06405
title: Articulo RED plantas medicinales
DOI: 10.25921/56sa-fk96
title: NOAA/WDS Paleoclimatology - Stevenson - Caddo Gap - PIEC - ITRDB AR076

description: Each year severe winter storms (~ice storms) damage trees throughout the southern USA. Arkansas and Oklahoma have a history of severe winter storms. To extend that history back beyond the reach of written records, a distinctive tree ring pattern or signature is needed. Storm-caused breakage, branch loss and bending stress provide that signature. We found a severe storm signature in shortleaf pine (Pinus echinata). We used three published site chronologies, a set of five new site chronologies from a growth-and-yield study conducted by Oklahoma State University and the unpublished Shortleaf Canyon chronology from a master's thesis at the University of Arkansas. Our method is based on two ring width values for the first and second growing seasons after the storm standardized to the ring widths of the seven growing seasons after the storm. Concordance between storm years predicted by tree ring patterns and actual storm years was tested using Cohen's Kappa. Concern about confounding of ice storm signals by droughts led us to test concordance between severe storms and drought in July, August and September; results were inconclusive but stand as a warning that these two phenomena cannot be distinguished with certainty in the tree ring record. Damaging severe storms occurred in about 2.8% of all years. Two out of three storms identified as "severe" produced glaze icing.
description:  NOAA Template Chronology file added 2018-12-20. NOAA Template Raw Measurements file added 2019-02-08.
DOI: 10.13140/rg.2.2.26279.55208
title: Mining Industry sustainability VS Sustainable Development. Case study : Managem group
DOI: 10.25921/5sf6-e112
title: NOAA/WDS Paleoclimatology - GISP2 Ice Core Thin Sections

description: Flow disturbances have been shown to alter stratigraphic order in the lower part of the ice sheet in central Greenland. Vertical thin sections of the Greenland Ice Sheet Project 2 ice core show that in the lower 30%, the expected c axis-vertical fabric is interrupted by planes of grains ("stripes") with c axes oriented approximately in the dip directions of the planes. Stripe-parallel shear produces small-scale folds. The stripes can be explained qualitatively by a simple nucleation-and-growth model based on the strong anisotropy of ice-crystal deformation. Nucleation probably is sensitive to spatially variable rates of polygonization, producing spatially variable stripe densities. Stripes are modeled to affect the ice viscosity, so variations in stripe density may contribute to viscosity contrasts that might produce larger deformational features and loss of stratigraphic order.
description: Vertical thin sections from the GISP2 core were examined on the Rigsby
stage for c-axis orientation.
DOI: 10.25921/5bw9-p588
title: NOAA/WDS Paleoclimatology - Birch - Red Mountain Fuel Treatment - PIPO - ITRDB CA729

description: Mastication, thinning, and prescribed fire can help shift fire-prone forests to a structure and composition more resilient to wildfire, but the ability to evaluate treatment effectiveness requires monitoring forest response to disturbances over time after treatment. In this study, we investigated fuel loadings, forest structure, and tree growth to assess treatment legacies thirteen years after mastication, prescribed fire, and surface fuel pull-back from tree boles in Sierra Nevada mixed-conifer forest. An outbreak of bark beetles between 2011 and 2018 impacted all plots but burned treatments had lower overstory mortality relative to unburned treatments which experienced an 80 % decline in live tree biomass. Tree diameter, canopy density, and surface fuel loadings became similar across all treatments during the 13 year time period. Height to live crown remained elevated in burned treatments relative to the control but had lowered by an average of 1.9 ± 0.3 (SE) m across all treatments. Radial tree growth did not have a sustained response to treatment and was greater in burned treatments for only a single year, 2011, several years post-treatment. Prescribed fire decreased duff mass by 56 % relative to unburned treatments but did not affect forest floor bulk density. Downed woody fuel loadings (1-h – 1000-h) were similar across treatments. The invasive Bromus tectorum (cheatgrass) had uniformly high cover across treatments. Whereas treatments were largely ineffective at producing long-term reductions in surface fuel loadings, the enduring reductions in duff loadings and reduced overstory mortality support the long-term utility of prescribed fire. Cumulatively, our results highlight the potential for prescribed fire to reduce overstory mortality and duff loadings in dry mixed-conifer forests, thereby contributing more effectively to fire-resilient characteristics relative to other fuel reduction treatments.
DOI: 10.13140/rg.2.2.19306.52163
title: Movimentos Consumeristas: Conceito, Dimensão, Ideológica e Motivação Consumerist Movements: Concept, Ideological, Dimension and Motivation
DOI: 10.25921/5w1t-aq63
title: NOAA/WDS Paleoclimatology - West Greenland Holocene Lake Sediment LOI Data

description: Synchronous changes in high-resolution loss on ignition profiles from widely separated shallow Arctic lakes in West Greenland suggest that sedimentary records of lake productivity provide a sensitive century-scale time series of variability in surface-air temperatures throughout the Holocene. Ice cover greatly reduces biological activity in arctic lakes, and the common productivity response among lakes is attributed to air-temperature–controlled variations in the length of the ice-cover period. Comparison with the Greenland oxygen isotope records from Summit ice cores demonstrates that the inferred temperature fluctuations in the lakes closely follow the century-scale fluctuations in the Greenland Ice Core Project δ18O record but correlate less well with the Greenland Ice Sheet Project 2 record. Low-altitude continental lake records thus not only confirm features of Holocene atmospheric temperature variability otherwise seen only in high-altitude ice cores from central Greenland, but also highlight discrepancies between the ice-core time series. The combined lake and ice-core data provide corroborative evidence for an intrinsically unstable Holocene climate in Greenland, including the 8200 yr B.P. event that is currently recognized as the most pronounced Holocene climatic cooling with possible global significance. Our finding of a link between paleoproductivity and surface-air temperature has important implications for reconstructing natural climate variability in areas where such information is still rare. The results illustrate the large potential of paleolimnological studies in the Arctic.
description: Loss-on-ignition data with sample-depth and calibrated radiocarbon ages, from Kangerlussuaq area, West Greenland.
DOI: 10.25921/51yz-wt53
title: NOAA/WDS Paleoclimatology - GRIP Depth Age Scale from Flow Modeling

description: Over 70,000 samples from the 3029-m-long Greenland Ice Core Project (GRIP) ice core drilled on the top of the Greenland Ice Sheet (Summit) have been analyzed for d8O. A highly detailed and continuous d8O profile has thus been obtained and is discussed in terms of past temperatures in Greenland. We also discuss a three-core stacked annual d8O profile for the past 917 years. The short-term (<50 years) variability of the annual d8O signal is found to be 1 per mil in the Holocene, and estimates for the coldest parts of the last glacial are 3 per mil or higher. These data also provide insights into possible disturbances of the stratigraphic layering in the core which seems to be sound down to the onset of the Eemian. Spectral analysis of highly detailed sequences of the profile helps determine the smoothing of the d8O signal, which for the Holocene ice is found to be considerably stronger than expected. We suggest this is due to a process involving diffusion of water molecules along crystal boundaries in the recrystallizing ice matrix. Deconvolution techniques were employed for restoring with great confidence the highly attenuated annual d8O signal in the Holocene. We confirm earlier findings of dramatic temperature changes in Greenland during the last glacial cycle. Abrupt and strong climatic shifts are also found within the Eem/Sangamon Interglaciation, which is normally recorded as a period of warm and stable climate in lower latitudes. The stratigraphic continuity of the Eemian layers is consequently discussed in section 3 of this paper in terms of all pertinent data which we are not able to reconcile.
description: This file contains the GRIP timescale ss09.
DOI: 10.25921/5bw4-yd09
title: NOAA/WDS Paleoclimatology - Myglan - Kazim - PISY - ITRDB RUSS244

description: The study describes the results of the dendrochronological analysis of the Kazym (Yuilsk) Ostrog towers, which are now the exhibits of the Open-Air Museum of History and Architecture of the Institute of Archeology and Ethnography SB RAS. Based on the data, the year 1745 was identified as the date when the Ostrog was constructed. The reconstruction of the dynamics of fires showed that the Ostrog was rebuilt due to the destruction of the preceding structure by fire in 1742. The details of the construction history of the Kazym Ostrog confirm the hypothesis that Russian wooden architecture was constantly renewed in different but related forms.
description: NOAA Template Chronology file added 2019-04-25.
DOI: 10.25921/52j1-7z40
title: NOAA/WDS Paleoclimatology - Sullivan - Agashashok Treeline - PCGL - ITRDB AK148

description: The position of the Arctic treeline, which is a key regulator of surface energy exchange and carbon cycling, is widely thought to be controlled by temperature. Here, we present evidence that soil nutrient availability, rather than temperature, may be the proximate control on growth of treeline trees at our study site in northwest Alaska. We examined constraints on growth and allocation of white spruce in three contrasting habitats. The habitats had similar aboveground climates, but soil temperature declined from the riverside terrace to the forest to the treeline. We identified six lines of evidence that conflict with the hypothesis of direct temperature control and/or point to the importance of soil nutrient availability. First, the magnitude of aboveground growth declined from the terrace to the forest to the treeline, along gradients of diminishing soil nitrogen (N) availability and needle N concentration. Second, peak rates of branch extension, main stem radial and fine root growth were generally not coincident with seasonal air and soil temperature maxima. At the treeline, in particular, rates of aboveground and fine root growth declined well before air and soil temperatures reached their seasonal peaks. Third, in contrast with the hypothesis of temperature-limited growth, growing season average net photosynthesis was positively related to the sum of normalized branch extension, main stem radial and fine root growth across trees and sites. Fourth, needle nonstructural carbohydrate concentration was significantly higher on the terrace, where growth was greatest. Fifth, annual branch extension growth was positively related to snow depth, consistent with the hypothesis that deeper snow promotes microbial activity and greater soil nutrient availability. Finally, the tree ring record revealed a large growth increase during late 20th century climate warming on the terrace, where soil N availability is relatively high. Meanwhile, trees in the forest and at the treeline showed progressively smaller growth increases. Our results suggest temperature effects on tree growth at our study sites may be mediated by soil nutrient availability, making responses to climate change more complex and our ability to interpret the tree ring record more challenging than previously thought.
description: NOAA Template Raw Measurements file added 2019-02-08.
DOI: 10.15468/dl.agrqf4
title: Occurrence Download

description: A dataset containing 19 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 },
 "Year is greater than or equal to 1900",
 "TaxonKey is Panicum plenum"
 ]
}

 The dataset includes 19 records from 12 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0025287-260208012135463/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.n9tbre
title: Occurrence Download

description: A dataset containing 8 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Mexico",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "TaxonKey is Urtica gracilis gracilis"
 ]
}

 The dataset includes 8 records from 5 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0025288-260208012135463/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.3535/kx4-r6c-f8n
title: Mammalia Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/zzw-096-1ct
title: Mammalia Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/e3k-mqb-lxa
title: Mammalia Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/txg-bpt-bek
title: Coelorinchus

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/22h-bmy-l48
title: Mammalia Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/c0t-5jq-9rs
title: Pseudopus

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/nw0-tyj-6lm
title: Capra Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/mp7-cwy-llh
title: Mammalia Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/rx7-7h7-bk7
title: Thomasomys Coues, 1884

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/a0p-1vw-5m9
title: †Prolagus Pomel, 1853

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/m23-55x-n53
title: Phyllacanthus imperialis (Lamarck, 1816)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/y1e-vlj-17q
title: Mammalia Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/1m5-vjf-c8m
title: Mammalia Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/z92-450-yjy
title: Mammalia Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/yp3-lxw-c3j
title: Chordata

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/hcy-h8a-6ba
title: Aves

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/pl4-zhz-l23
title: Agnostus

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/scg-kfp-bp7
title: †Prolagus Pomel, 1853

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/15g-erx-l2e
title: Mammalia Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/v4q-32j-g13
title: Ursus Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/9s5-3wy-j8s
title: †Prolagus Pomel, 1853

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/k23-mjk-zdb
title: Cervus elaphus Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/pzn-84x-30h
title: Mammalia Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/rvp-zye-6y4
title: Mammalia Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/wd7-9b7-gtf
title: Balclutha Kirkaldy, 1900

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/r0f-pzj-zl4
title: Mammalia Linnaeus, 1758

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