cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.3535/7v4-4y7-847
title: Habenaria epiphylla Rchb. f. & Warm.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/v9b-601-8t2
title: Habenaria achnantha Rchb. f.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.13140/rg.2.2.15922.56006
title: Contribution of Organic pool of Nitrogen towards Inorganic Nitrogen pool and vice-versa in Rice Rhizosphere soils of Chakdaha, Nadia district, West bengal
DOI: 10.3535/1te-fd5-wfd
title: Vanillosmopsis erythropappa (DC.) Sch. Bip.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/chr-7dl-zvh
title: Cymbalaria pallida (Ten.) Wettst.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/y6m-ze6-sz9
title: Senecio brasiliensis (Spreng.) Less.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/6dw-5d0-03y
title: Eryngium pseudojunceum Clos

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/gm8-rmf-9w3
title: Stifftia chrysantha J. C. Mikan

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/vez-0v9-gz6
title: Habenaria nasuta Rchb. f. & Warm.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/613-717-bnr
title: Plukenetia polyadenia Müll. Arg.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/am9-rv1-pwm
title: Mikania obovata DC.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/d3n-5v9-9k2
title: Lepidium crassifolium Waldst. & Kit.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/kk8-0p9-wrm
title: Mikania microcephala DC.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.13140/rg.2.2.28820.04480
title: Supplementary Data
DOI: 10.3535/0ph-jah-jk3
title: Restrepia lansbergii Rchb. f. & H. Wagener

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/qwq-ka4-kk8
title: Stifftia chrysantha J. C. Mikan

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/z0f-50q-27m
title: Alyssoides utriculata (L.) Medik.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/1j5-tt5-gkn
title: Camelina laxa C. A. Mey.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/m26-dlm-ws5
title: Plukenetia polyadenia Müll. Arg.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/xqg-1fn-lpe
title: Habenaria heptadactyla Rchb. f.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/1sb-00s-kdl
title: Mutisia campanulata Less.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/9hq-6q0-mhr
title: Flemingia Roxb. ex W. T. Aiton

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/xtv-nw0-mk7
title: Habenaria warmingii Rchb. f. & Warm.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/39g-azd-sh7
title: Habenaria Willd.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/4rz-83c-cve
title: Habenaria glaucophylla var. brevifolia Cogn.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/lmh-f7t-92q
title: Pectis congesta (Gardner) Sch. Bip.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/7a6-pjc-gmj
title: Habenaria Willd.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/b1b-tzr-fca
title: Scorzoneroides helvetica (Mérat) Holub

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/fbp-t0d-05k
title: Habenaria diffusa A. Rich. & Galeotti

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.13140/rg.2.2.23419.87840
title: INFOGRAFIA
DOI: 10.3535/kfc-k4e-6vc
title: Flemingia grahamiana Wight & Arn.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/sa3-qrs-ppb
title: Habenaria Willd.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/zb1-5z1-f46
title: Hieracium alpinum subsp. alpinum L.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/lw0-vc0-3s5
title: Thlaspi praecox Wulfen

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.3535/qb5-k83-lc1
title: Dendrobium brymerianum Rchb. f.

description: Digital Specimen for the physical specimen hosted at Natural History Museum Vienna.
DOI: 10.1594/pangaea.762073
title: (Table 1) Contents and molecular composition of n-alkanes in bottom sediments from Core AMK46-4162, Blake-Bahama Abyssal Plain
DOI: 10.1594/pangaea.880612
title: Organic geochemistry of surface sediment samples from southeast Africa
DOI: 10.1594/pangaea.930736
title: Centennial scale denitrification variability based on isotopic and geochemical proxies from the Arabian Sea since the last glacial period

description: Isotopic (nitrogen and carbon isotope ratio of sedimentary organic matter), geochemical (total organic carbon and total nitrogen content of sediment), and micropaleontological (Globigerina bulloides abundance) analyses were done in samples from a marine sediment core. This gravity-core was collected during the 274th cruise of the ORV Sagar Kanya from the Southeastern Arabian Sea. The chronology of the core is based on nine radiocarbon dates obtained using two species of planktic foraminifera (Globigerinoides ruber, Globigerinoides sacculifer; size range: 250–420 μm). It spans the last ~ 43 thousand years and the average resolution is ~150 years. For total organic carbon concentration and carbon isotope ratio estimation, carbonate was removed by treating the sample with 2N hydrochloric acid for 16 hours followed by centrifuging. Given the known problems of loss of nitrogen compounds from the sedimentary organic matter on acidification of samples, resulting in a bias in nitrogen content and nitrogen isotope ratios, untreated samples were used for their analysis. This data was used to study centennial-scale denitrification and productivity variability from the Southeastern Arabian Sea.
DOI: 10.1594/pangaea.939342
title: Productivity proxies of sediment core AMD15-CASQ1-BC
DOI: 10.1594/pangaea.706740
title: (Table 3) Concentration of some compounds extracted by benzene-methanol in sediments from DSDP Hole 1-2
DOI: 10.1594/pangaea.861670
title: Biomarker of samples from the Gouritz River catchment
DOI: 10.5281/zenodo.15233015
title: ХУДОЖЕСТВЕННЫ ОБРАЗ ВОСТОКА В ТАШКЕНТСКИХ СТИХОТВОРЕНИЙ А.А. АХМАТОВОЙ)
DOI: 10.5281/zenodo.15233016
title: ХУДОЖЕСТВЕННЫ ОБРАЗ ВОСТОКА В ТАШКЕНТСКИХ СТИХОТВОРЕНИЙ А.А. АХМАТОВОЙ)
DOI: 10.1594/pangaea.904451
title: Phytoplankton abundance in high-nutrient low-chlorophyll subantarctic waters on Campbell Plateau, R/V Tangaroa cruise TAN1702
DOI: 10.1594/pangaea.964524
title: Dry mass concentrations of individual n-alkanes in sediment core Haem13 from lake Hämelsee

description: This dataset provides concentrations of n-alkanes for the Lateglacial sediment sequence retrieved from Lake Hämelsee (Germany) in 2013. Concentrations of n-alkanes (ug/g), the Carbon Preference Index (CPI) and the Average Chain Length C21-C33 (ACL) are all presented against both depth (m) and age (cal yr. BP). The n-alkane concentration data provides information on the Lateglacial dynamics of local plant productivity, whereas the ACL and CPI of the sediment samples were determined to estimate origin and preservation condition. A total of 167 samples from the Lateglacial section of the core were processed using a Dionex 350 accelerated solvent extraction (ASE) system. Solid phase extraction (SPE) was used to separate the extracts into an aliphatic, aromatic and alcohol/fatty acid fraction. Separation was achieved by loading the extracts on activated silica columns and eluting each fraction with hexane, hexane/DCM (1:1 v/v) and DCM/MeOH (9:1 v/v) successively. The aliphatic fraction, containing the n-alkanes, was analyzed by gas chromatography-mass spectrometry (GC/MS). The peak areas for each n-alkane homologue were compared to the peak areas from an internal standard (5α-androstane) and an external n-alkane standard mixture for absolute quantification. We refer to Rach et al. (2020) for further details on the exact analytical setup. All measurements were performed in the laboratories of GeoForschungsZentrum Potsdam.
description: #0 = below detection limit
DOI: 10.1594/pangaea.861421
title: Biomarker of sediment core GeoB18308-1
DOI: 10.1594/pangaea.808639
title: (Table 2) Bitumen in sediments at DSDP Sites 79-547 and 79-545
DOI: 10.1594/pangaea.819885
title: (Table 1) Carbon and lipids at DSDP Hole 61-462

description: The lipids of a Pliocene and a Cretaceous sample from Site 462 were analyzed to assess their source and diagenetic history. Judging from the distributions of the n-alkanes, n-fatty acids, n-alkylcyclohexanes and molecular markers, they are autochthonous, of marine origin, and deposited under oxic paleoenvironmental conditions of sedimentation. The stereochemistry of the various molecular markers (e.g., triterpanes and steranes) of the Pliocene sample indicates that the lipids are geologically mature. This supports the hypothesis of sediment recycling from older formations by turbidite redistribution into the Nauru Basin
description: Supplement to: Simoneit, Bernd R T (1981): Lipid geochemistry of sediments from Site 462 in the Nauru Basin. In: Larson, RL; Schlanger, SO; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 61, 627-629
DOI: 10.1594/pangaea.761849
title: Sea surface temperature reconstruction from biomarker in sediment core POS287-26-G
DOI: 10.1594/pangaea.884114
title: n-Alkane composition from the Loess Paleosol Sequence Möhlin, Switzerland

description: We have measured leaf wax n-Alkanes from a Loess Paleosol Sequence (location: 47.56819 / 7.88053) ranging back to MIS 4. The data set contains n-Alkane patterns, Deuterium and Radiocarbon.We also present some calculations, derived from the Patterns:Average chain length gives a hint whether trees/shrubs or grasses were the dominant vegetation. The higher the value, the higher the contribution of grasses.ACL=(27 x nC_27+29 x nC_29+31 x nC_31+33 x nC_33)/(nC_27+nC_29+nC_31+nC_33 )OEP is a marker for degradation. The higher the values, the less degraded are the n-alkanes.OEP=(nC_27+nC_29+nC_31+nC_33)/(nC_26+nC_28+nC_30+nC_32 )For more information, further calculations and discussion see the related manuscript.
description: Supplement to: Wüthrich, Lorenz; Bliedtner, Marcel; Schäfer, Imke Kathrin; Zech, Jana; Shajari, Fatemeh; Gaar, Dorian; Preusser, Frank; Salazar, Gary; Szidat, Sönke; Zech, Roland (2017): Late Quaternary climate and environmental reconstruction based on leaf wax analyses in the loess sequence of Möhlin, Switzerland. E&G - Eiszeitalter und Gegenwart - Quaternary Science Journal, 66(2), 91-100
DOI: 10.1594/pangaea.757343
title: (Table 1) Carbon chemistry, aklane and fatty acid concentrations in whole sediments of the Central Gulf of California
DOI: 10.1594/pangaea.955086
title: Stable isotope from Miocene exceptionally preserved foraminifera from Tanzania

description: The dataset presents oxygen and carbon stable isotopes measured on multispecies planktonic foraminiferal shells and on Cibicidoides spp. and Uvigerina spp. (benthic foraminifera). The data were obtained from three samples from marine deposits outcropping in coastal Tanzania dating back to the early and middle Miocene. The samples are characterized by an exceptionally good preservation of foraminiferal shells.
DOI: 10.1594/pangaea.626554
title: (Table 2) Biomarker data from nine sites on a north-south transect from the Congo Fan (4°S) to the Cape Basin (30°) representing the glacial stage MIS 2
DOI: 10.1594/pangaea.806806
title: (Table 2) Major n-alkane homologues and plant macrofossils observed along peat profiles LVPS4 and LVPS5B
DOI: 10.1594/pangaea.935671
title: Organic matter biogeochemistry using lipid biomarker analysis of a rapidly eroding permafrost cliff

description: Organic carbon (OC) stored in Arctic permafrost represents one of Earth’s largest and most vulnerable terrestrial carbon pools. Amplified climate warming across the Arctic results in widespread permafrost thaw. Permafrost deposits exposed at river cliffs and coasts are particularly susceptible to thawing processes. Accelerating erosion of terrestrial permafrost along shorelines leads to increased transfer of organic matter (OM) to nearshore waters. However, the amount of terrestrial permafrost carbon and nitrogen as well as the OM quality in these deposits are still poorly quantified. Here, we characterise the sources and the quality of OM supplied to the Lena River at a rapidly eroding permafrost river shoreline cliff in the eastern part of the delta (Sobo-Sise Island). Our multi-proxy approach captures bulk elemental, molecular geochemical and carbon isotopic analyses of late Pleistocene Yedoma permafrost and Holocene cover deposits, discontinuously spanning the last ~52 ka. We show that the ancient permafrost exposed in the Sobo-Sise cliff has a high organic carbon content (mean of about 5 wt%).We found that the OM quality, which we define as the intrinsic potential to further transformation, decomposition, and mineralization, is also high as inferred by the lipid biomarker inventory. The oldest sediments stem from Marine Isotope Stage (MIS) 3 interstadial deposits (dated to 52 to 28 cal kyr BP) and is overlaid by Last Glacial MIS 2 (dated to 28 to 15 cal ka BP) and Holocene MIS 1 (dated to 7–0 cal ka BP) deposits. The relatively high average chain length (ACL) index of n-alkanes along the cliff profile indicates a predominant contribution of vascular plants to the OM composition. The elevated ratio of iso and anteiso-branched FAs relative to long chain (C ≥ 20) n-FAs in the interstadial MIS 3 and the interglacial MIS 1 deposits, suggests stronger microbial activity and consequently higher input of bacterial biomass during these climatically warmer periods. The overall high carbon preference index (CPI) and higher plant fatty acid (HPFA) values as well as high C / N ratios point to a good quality of the preserved OM and thus to a high potential of the OM for decomposition upon thaw. A decrease of HPFA values downwards along the profile probably indicates a relatively stronger OM decomposition in the oldest (MIS 3) deposits of the cliff.
DOI: 10.1594/pangaea.904456
title: Phytoplankton carbon biomass in high-nutrient low-chlorophyll subantarctic waters on Campbell Plateau, R/V Tangaroa cruise TAN1702
DOI: 10.1594/pangaea.941155
title: Biogeochemical parameters of thawed sediments underneath a Yedoma and Alas thermokarst lake in Eastern Siberia, version 2

description: This dataset describes two 17 m long sediment cores taken from beneath two thermokarst lakes in the Yukechi Alas, Central Yakutia, Russia. The first core was taken from below an Alas thermokarst lake (YU-L7; 61.76397°N, 130.46442°E) and the second core below and Yedoma lake (YU-L15; 61.76086°N, 130.47466°E).The dataset presents biogeochemical and biomarker parameters of sediment cores YU-L7 and YU-L15. Biogeochemical analyses include total carbon (TC) content, total organic carbon (TOC) content, total nitrogen (TN) content. Biomarker parameters include the n-alkane concentration, average chain length (ACL), carbon preference index (CPI), brGDGT concentration, archaeol concentration and the isoGDGT-0 concentration.The n-alkanes were measured in the aliphatic fraction by gas chromatography-mass spectromety using a Trace GC Ultra coupled to a DSQ MS.The branched and isoprenoid glycerol dialkyl glycerol tetraethers, as well as the dialkyl glycerol diether lipid (archaeol) were measured in the NSO fraction using a Shimadzu LC-10AD high-performance liquid chromatograph coupled to a Finnigan TSQ 7000 mass spectrometer via an atmospheric pressure chemical ionization interface.The pH soil is the sediment pH which was assessed by adding 6.12 mL of 0.01 M CaCl~2~ to ~2.5 g dried sediment and measuring with a Multilab 540 (WTW) at 20°C.
DOI: 10.1594/pangaea.785888
title: (Table 3) Distribution of n-alkanes in surface layer bottom sediments of the Chukchi Sea
DOI: 10.1594/pangaea.963835
title: Sedimentary pigments from sediment core HZM19, Holzmaar (West-Eifel Volcanic Field, Germany)

description: Chl and Bphe were measured with ultraviolet–visible photospectrometry (UV-VIS) using combined protocols of Lami et al. (1994, doi:10.1007/978-94-017-2095-3_7) and Pniewski (2020, doi:10.2478/s11756-019-00407-8). The sediment core HZM19 was collected in 2019, from Holzmaar, West-Eifel Volcanic Field in Germany using a UWITEC Piston Corer. The sediment core was collected to reconstruct environmental and climate changes of Holzmaar for the last 16,000 years cal BP. Particularly in this data set we cover between 2450-2950 cal BP.
description: Funding information:* Georg Forster Research Fellowship for postdoctoral researchers (for the Alexander von Humboldt funding)* Central Research Development Fund (CRDF) of the University of Bremen, 04 Independent Project for Postdocs- Funding objective B
DOI: 10.1594/pangaea.875109
title: n-Alkane deuterium analysis of soil samples from South Africa

description: The hydrogen isotope composition of plant leaf wax (dDwax) has been found to record the isotope composition of precipitation (dDp). Hence, dDwax is increasingly used for palaeohydrological reconstruction. It is, however, also affected by secondary factors, such as vegetation type, evapotranspiration and environmental conditions, complicating its direct application as a quantitative palaeohydrological proxy. Here, we present dDwax data from soils along vegetation gradients and climatic transects in southern Africa to investigate the impact of different environmental factors on dDwax. We found that dDwax correlated significantly with annual dDp (obtained from the interpolated Online Isotopes in Precipitation Calculator data set) throughout eastern and central South Africa, where the majority of the mean annual precipitation falls during the summer. We found evidence for the effect of evapotranspiration on dDwax, while vegetation change was of minor importance. In contrast, we found that δDwax did not correlate with annual dDp in western and southwestern South Africa, where most of the annual precipitation falls during winter. Wide microclimatic variability in this topographically variable region, including distinct vegetation communities and high vegetation diversity between biomes as well as a potential influence of summer rain in some locals, likely compromised identification of a clear relationship between dDwax and dDp in this region. Our findings have implications for palaeoenvironmental investigations using dDwax in southern Africa. In the summer rain dominated eastern and central region, dDwax should serve well as a qualitative palaeohydrological recorder. In contrast, the processes influencing dDwax in the winter rain- dominated western and southwestern South Africa remain unclear and, pending further analyses, potentially constrain its use as palaeohydrological proxy in this region.
description: Supplement to: Herrmann, Nicole; Boom, Arnoud; Carr, Andrew S; Chase, Brian M; West, Adam G; Zabel, Matthias; Schefuß, Enno (2017): Hydrogen isotope fractionation of leaf wax n -alkanes in southern African soils. Organic Geochemistry, 109, 1-13
DOI: 10.15468/dl.hr6uxh
title: Occurrence Download

description: A dataset containing 31046 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is Specimen",
 "Country is Canada",
 "GadmGid is one of (CAN.1_1, CAN.12_1, CAN.3_1)",
 "OccurrenceStatus is Present",
 "TaxonKey is Aves",
 "Year 1800-1950"
 ]
}

 The dataset includes 31046 records from 54 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0053683-230530130749713/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.xjz4jr
title: Occurrence Download

description: A dataset containing 12370 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is one of (Larix laricina (Du Roi) K.Koch)"
 ]
}

 The dataset includes 12370 records from 188 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0160400-220831081235567/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.25709067.v1
title: Exploration of Bioinspired Algorithms in Multithreshold Image Segmentation for Medical Images

description: The brain is essential for human functioning, but it is vulnerable to multiple pathologies, including strokes, brain tumors, and other disorders that compromise its structure and function. Medical images obtained through techniques using ionizing radiation or magnetic resonance imaging (MRI) are fundamental for evaluating these conditions.In this context, brain image segmentation becomes a critical tool for accurately delineating anatomical and pathological structures, facilitating both diagnosis and therapeutic planning. Segmentation is carried out in an unsupervised manner using techniques such as Kapur entropy, Tsallis entropy, and the multilevel Otsu method, supported by metaheuristic optimization algorithms that aim to determine the most effective segmentation thresholds
DOI: 10.15468/dl.6zyk62
title: Occurrence Download

description: A dataset containing 930 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Linaria nivea Boiss. & Reut."
 ]
}

 The dataset includes 930 records from 59 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010065-230530130749713/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.ypnttm
title: Occurrence Download

description: A dataset containing 2 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Inula helenium L.",
 "HasCoordinate is true",
 "Country is Japan",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 2 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0195767-220831081235567/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.xkcha3
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Ophrys ×loneuxiana P.Delforge"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0053689-230530130749713/datasets/export for details.