cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.1594/pangaea.934714
title: Analytical quality control parameters for reference materials used to calibrate our measurements and check for data integrity

description: The GLITTER software package was used for raw data reduction, applying initial calibration with NIST-SRM612 as the primary standard, using CaO g/100g for the internal count to mass fraction reference. Potential errors from surface contamination have been avoided by excluding the first seconds of data acquisition from integration. The signal trace over time for each element (m/z) measured was checked for its analytical and geological reasoning and excluded in case of abnormal pattern or spikes (e.g., vertical transitions into different mineral phases during ablation, mineral inclusions, sulfide micro nuggets in clinopyroxene). A second, matrix-matched calibration step was realized by correcting against mean offset factors of median values from at least three repetitive measurements on nano-particulate pressed powder tablets of reference materials USGS-BHVO-2NP, USGS-BIR-1NP, and GSJ-JGb-1NP. All reference materials were analyzed multiple times throughout each analytical session for bracketing and drift correction. Some sessions have been calibrated against the USGS glass microanalytical reference materials USGS-BHVO-2G and USGS-BIR-1G. Results of glass vs. pellet reference materials show no significant quality difference and lead to similar correction factors. Analytical measurement uncertainties were found to be in the range of 1% to 3% RMAD (1MAD) at mass fractions &gt;10x LOD for most elements analyzed. For monitoring deviations from preferred or “true” values, the MPI-DING glasses GOR-128G, GOR-132G, and StHs6/80-G have been measured as unknowns. Additionally, JF-1P with extremely low mass fractions for most trace elements has been measured during most analytical sessions. Estimated deviations from preferred values of all analyzed reference materials are, for most elements, in the range of 5 to 10 RMSD% and within the uncertainties of the preferred or compiled values.
DOI: 10.1594/pangaea.972835
title: Basic measurements of radiation at station Lampedusa (2024-08)

description: - On 1 August works around the tracker- On 19 August about 7:10 UT cleaning the radiometers after 9 days
DOI: 10.1594/pangaea.972836
title: Basic measurements of radiation at station Lampedusa (2024-07)

description: - On 2 July strong wind and desert dust in the afternoon - On 9 July 12:57-13:15 UT change in the global pyranometer ventilation unit - On 11 July at 15:51 UT change in the pyranometer for global irradiance
DOI: 10.1594/pangaea.945968
title: Compilation of trophic positions of marine biota from the central and Northeast Atlantic, and the Mediterranean Sea

description: Fractional trophic levels (i.e., trophic positions) describe the position of organisms within food webs and help define their functional roles in ecosystems (Odum & Heald, 1975). Trophic positions are thus critical for characterizing species' diets and energy pathways, investigating food web dynamics and ecosystem functioning, and assessing ecosystem health and resilience (Pauly et al., 1998; Pauly & Watson, 2005; Vander Zanden & Fetzer, 2007). We compiled estimates of trophic positions of marine organisms sampled across North Atlantic and Mediterranean waters between 1974 and 2015, gathered from 33 published and unpublished sources. The dataset comprises 208 unique species or genera, including zooplankton, decapods, cephalopods, pelagic and benthic fish, elasmobranchs, marine mammals, marine turtles, seabirds, as well as detritus. Estimates of trophic position were based on the analyses of stomach contents, bulk nitrogen stable isotopes (δ15N values), or amino acid compound-specific nitrogen isotopic analysis. For each data record, we also provided the sampling location, geographic coordinates, month and year of sample collection, method of sample collection, taxonomic ranks (phylum, class, order, family), number and size (or size range) of sampled organisms, type of analyses and estimation method, as well as the reference and DOI of the original data source, for further details on the samples analysed and/or the analytical techniques used.
DOI: 10.1594/pangaea.945917
title: Compilation of stable nitrogen and carbon isotope ratios of marine biota from the central and Northeast Atlantic, and the Mediterranean Sea

description: Bulk stable isotope ratios, primarily of carbon (δ13C) and nitrogen (δ15N), are increasingly used to examine predator-prey interactions and food web structure. We compiled δ13C and δ15N values of marine taxa from 56 published sources to support investigations on trophic interactions in mesopelagic food webs and assess the importance of mesopelagic organisms in the marine ecosystem. A total of 2095 records were collected, representing 8716 individual organisms from 349 unique species or genera sampled across the central and Northeast Atlantic, and the Mediterranean Sea, between 1905 and 2020. Records include 185 benthic and pelagic fish, 47 cephalopods, 31 marine mammals, 30 crustaceans, 26 elasmobranchs, 16 seabirds, 4 marine turtles, 4 jelly fish, 3 copepods, 2 salps, in addition to data from several organisms only identified to higher taxonomic ranks (family or above). The dataset includes isotopic ratios measured in the tissues or in the whole body of individual organisms, or mean values (and standard deviations) from pooled samples. Because lipids have more negative δ13C values relative to other major biochemical compounds in plant and animal tissues (DeNiro & Epstein, 1977), many studies correct for the lipid effect by extracting lipids from samples before analysis, or a posteriori, through mathematical corrections (Post, 2002). Therefore, δ13C values were reported as uncorrected, lipid-extracted, or mathematically-corrected. When available, the total organic carbon to nitrogen ratio (C:N) was included. For each data record, we also provided the sampling location, geographic coordinates, month and year of sample collection, method of sample collection, taxonomic ranks (phylum, class, order, family), number and size (or size range) of sampled organisms, as well as the reference and DOI of the original data source, for further details on the samples analysed and/or the analytical techniques used.
DOI: 10.1594/pangaea.969077
title: Stable carbon, oxygen and clumped isotope data of cultured European land snails

description: These data include carbon, oxygen and clumped isotope compositions of shells of three land snail species (Clausilia pumila, Succinella oblonga, Trochulus hispidus) from culturing experiments. During the laboratory experiments at the University of Lodz (Poland) individuals of the three species were kept from October 26, 2021 to June 17, 2022 at 12, 18 and 24 °C temperatures in climate chambers, fed exclusively by fresh lettuce and humidity was controlled using tap water (δ¹⁸O: -9.29 ±0.52 ‰, V-SMOW). δ¹³C, δ¹⁸O and Δ₄₇ values of snail shells from lab experiments were determined in two laboratories (Institute for Nuclear Research, Debrecen, and Geological Institute, ETH Zürich) using IRMS. Detailed analysis and interpretations of the results obtained can be read in the original publication.
DOI: 10.1594/pangaea.844732
title: Satellite image mosaic of the Terra Nova Bay area (Victoria Land, Antarctica)

description: This work has been carried out as part of "Programma Nazionale di Ricerche in Antartide" and was supported financially be ENEA through a joint reasearch-program on Antarctic Earth Science with the University of Siena (Italy). The geopmorphological and glaciological research, of which this work forms a part, is coordinated by Prof. Giuseppe Grombelli.
description: This mosaic has been made digitally from 10SPOTXS frames acquired during 1988, 1989 and 1990. After radiometric and geometric processing, the final product was printed in false colour, assigning red to band 3, green to band 2 and blue to band 1.Digital repro in jpg-format (3.2 MB).
DOI: 10.1594/pangaea.969017
title: Basic measurements of radiation at station Lampedusa (2024-05)
DOI: 10.6084/m9.figshare.26502538
title: Supplementary material for<b> </b>the manuscript titled "Scolytine beetle diversity along an altitudinal gradient in Papua New Guinea" <b>Table S1</b>. Comprehensive list of species collected in this study.

description: Tropical elevation gradients host some of the most diverse assemblages of organisms, but current empirical data provide competing hypotheses on how this elevational biodiversity is structured: species are either most numerous in tropical lowland rainforests with a decline in diversity with elevation, or middle elevation ecosystems host the highest species richness by combining low- and high-elevation elements. In this study, we investigated the distribution of scolytine beetles—phloem, ambrosia, and seed feeding beetles of the weevil subfamily Scolytinae—along a tropical elevational gradient from. Highly standardized sampling from 200 m asl to 3500 m asl identified areas of highest and lowest species richness, abundance, and other biodiversity variables. Beetles were sampled using unbiased, passive flight intercept traps at eight elevations regularly spaced by 500 elevational m on Mount Wilhelm, Papua New Guinea, with consistent collecting effort at each site. Despite collecting over 9600 specimens of 215 species, our sampling effort did not fully exhaust the diversity within our study region, as suggested by species accumulation curves. Scolytine species richness conforms to a unimodal distribution, peaking at lower- to mid-elevations between 700 m asl and 1200 m asl. These results support the findings of previous studies that reported skewed unimodal elevational biodiversity distribution, highest at lower and particularly at middle elevations. Alternative models, such as a monotonous decrease from lowlands to higher elevations, and a mid-elevation maximum, showed lesser fit to our data. Abundance is greatest at the lowest sites, driven by a few extremely abundant species. The turnover rate—beta diversity between elevation steps—is greatest between the highest elevations. Species richness of dominant tribes—Dryocoetini, Xyleborini, and Cryphalini—was highest at mid-elevations ranging from 700 m asl to 2200 m asl. In terms of abundance, separate analyses of individual taxa show a different pattern in each: abundance of <i>Euwallacea</i> spp. uniformly decreases with elevation, while the abundances of other genera are driven by individual species dominant at different elevation. The <i>Coccotrypes</i> and the phloem-feeding <i>Cryphalus</i> have experienced evolutionary radiation in New Guinea, and most of their species remain undescribed. Species not yet know to science are most likely to be found at lower and middle elevations, where overall diversity is highest.
DOI: 10.6084/m9.figshare.26502538.v2
title: Supplementary material for<b> </b>the manuscript titled "Scolytine beetle diversity along an altitudinal gradient in Papua New Guinea" <b>Table S1</b>. Comprehensive list of species collected in this study.

description: Tropical elevation gradients host some of the most diverse assemblages of organisms, but current empirical data provide competing hypotheses on how this elevational biodiversity is structured: species are either most numerous in tropical lowland rainforests with a decline in diversity with elevation, or middle elevation ecosystems host the highest species richness by combining low- and high-elevation elements. In this study, we investigated the distribution of scolytine beetles—including phloem, ambrosia, and seed feeding beetles of the weevil subfamily Scolytinae—along a tropical elevational gradient from 200m a.s.l. to 3500m a.s.l., to identify areas of highest and lowest species richness, abundance, and other biodiversity variables. Beetles were sampled using unbiased, passive flight intercept traps at eight elevations regularly spaced by 500 elevational m on Mt Wilhelm, Papua New Guinea, with consistent collecting effort at each site. Despite collecting over 9600 specimens of 215 species, our sampling effort did not fully exhaust the diversity within our study region, as suggested by species accumulation curves. Scolytine species richness conforms to a unimodal distribution, peaking at lower- to mid-elevations between 700m and 1200m a.s.l. Abundance is greatest at the lowest sites, driven by a few extremely abundant species. These results support the findings of previous studies that reported skewed unimodal elevational biodiversity distribution, highest at lower and particularly at middle elevations. Alternative models, such as a monotonous decrease from lowlands to higher elevations, and a mid-elevation maximum, showed lesser fit to our data. The turnover rate—beta-diversity between elevation steps—is greatest between the highest elevations. Species richness of dominant tribes—Dryocoetini, Xyleborini, and Cryphalini—was highest at mid-elevations ranging from 700m to 2200m. In terms of abundance, separate analyses of individual taxa show a different pattern in each: abundance of <i>Euwallacea</i> spp. uniformly decreases with elevation, while the abundances of other genera are driven by individual species dominant at different elevation. The <i>Coccotrypes</i> and the phloem-feeding <i>Cryphalus</i> have experienced evolutionary radiation in New Guinea, and most of their species remain undescribed. Species not yet know to science are most likely to be found at lower and middle elevations, where overall diversity is highest.
DOI: 10.15468/dl.4eg6zr
title: Occurrence Download

description: A dataset containing 200371 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((-74.89786 10.24117,-74.75482 10.50124,-74.69441 10.6497,-74.69441 10.83764,-74.78503 11.1144,-75.41034 11.10827,-75.31457 10.64281,-75.17942 10.50593,-75.06065 10.38912,-74.98558 10.33256,-74.89786 10.24117))",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present"
 ]
}

 The dataset includes 200371 records from 274 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000708-250121130708018/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.4nmb7s
title: Occurrence Download

description: A dataset containing 195 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Paris japonica (Franch. & Sav.) Franch.",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Country is Japan"
 ]
}

 The dataset includes 195 records from 24 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000710-250121130708018/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.7k82e5
title: Occurrence Download

description: A dataset containing 58605 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is one of (Observation, Human Observation, Specimen)",
 "Geometry POLYGON((-140.78 47.44,-111.89 47.44,-111.89 61.11,-140.78 61.11,-140.78 47.44))",
 "License is one of (CC0 1.0, CC-BY 4.0, CC-BY-NC 4.0)",
 "OccurrenceStatus is Present",
 "TaxonKey is Ochrophyta"
 ]
}

 The dataset includes 58605 records from 73 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000711-250121130708018/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.5nf85g
title: Occurrence Download

description: A dataset containing 13 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "TaxonKey is Pseudobulweria macgillivrayi (G.R.Gray, 1860)"
 ]
}

 The dataset includes 13 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000712-250121130708018/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.5281/zenodo.14715310
title: Paired Wind Turbine and Met Tower Datasets

description: This dataset has four pairs of wind turbine-met tower measurements.  The coordinates of the turbines and met towers are given.  The Explanation file has the additional details.
DOI: 10.5281/zenodo.14715311
title: Paired Wind Turbine and Met Tower Datasets

description: This dataset has four pairs of wind turbine-met tower measurements.  The coordinates of the turbines and met towers are given.  The Explanation file has the additional details.
DOI: 10.15468/dl.p288xq
title: Occurrence Download

description: A dataset containing 3449 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is United States of America",
 "Geometry POLYGON((-121.01501 32.45469,-117.02707 32.45469,-117.02707 34.44884,-121.01501 34.44884,-121.01501 32.45469))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "TaxonKey is Tursiops Gervais, 1855"
 ]
}

 The dataset includes 3449 records from 37 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000713-250121130708018/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.6084/m9.figshare.28037837.v2
title: Mexico Foreign Trade by Country (1993-2024)

description: This dataset provides a comprehensive overview of foreign trade between Mexico and all other countries and regions worldwide. The data is structured as a monthly time series, offering a detailed chronology of trade flows over time.The dataset distinguishes between <b>imports</b> and <b>exports</b>, enabling users to analyze Mexico's trade balance and the directionality of trade activities. All trade values are expressed in <b>nominal USD</b>, ensuring consistency and comparability across time periods and trade partners.The dataset is sourced from the Mexican Ministry of Economy's DataMexico Vizbuilder, a reliable and authoritative platform for trade and economic data.
DOI: 10.15468/dl.3u9z0r
title: Occurrence Download

description: A dataset containing 1053 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Mexico",
 "TaxonKey is Agalychnis callidryas (Cope, 1862)"
 ]
}

 The dataset includes 1053 records from 36 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0002218-180824113759888/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.zaf6w3
title: Occurrence Download

description: A dataset containing 151 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Monanthotaxis whytei (Stapf) Verdc."
 ]
}

 The dataset includes 151 records from 27 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0342894-200613084148143/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.hcswlj
title: Occurrence Download

description: A dataset containing 241 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((-99.84938 23.74724,-99.57283 22.69405,-99.42535 22.69156,-99.4359 22.79037,-99.31355 22.87638,-99.1902 22.6133,-99.02701 22.64117,-99.22489 23.23107,-99.39451 23.78252,-99.63074 23.86879,-99.84938 23.74724))",
 "HasCoordinate is true",
 "TaxonKey is Actinopterygii",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 241 records from 12 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0029966-200221144449610/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.xv6a7e
title: Occurrence Download

description: A dataset containing 91 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Dythemis rufinervis (Burmeister, 1839)"
 ]
}

 The dataset includes 91 records from 7 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0054006-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.vsvyae
title: Occurrence Download

description: A dataset containing 15038 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Peru",
 "TaxonKey is Zonotrichia capensis (P.L.S.Müller, 1776)"
 ]
}

 The dataset includes 15038 records from 31 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0002218-180920211646547/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.qxwtt6
title: Occurrence Download

description: A dataset containing 365364 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Veronica chamaedrys L."
 ]
}

 The dataset includes 365364 records from 869 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0059017-200221144449610/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.dvs63g
title: Occurrence Download

description: A dataset containing 269 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Opuntia anacantha Speg."
 ]
}

 The dataset includes 269 records from 38 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0077314-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.