cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.28042912.v1
title: A Glimpse into the Late Cretaceous (Cenomanian) Palynology of the Arlington Archosaur Site, Texas, USA

description: The Arlington Archosaur Site between Dallas and Fort Worth, Texas, USA, is known as a rich fossiliferous section. The age of these rocks is generally considered to be mid-Cenomanian, but conflicting evidence suggests they may be as young as the Late Cenomanian–Early Turonian. To address the issue, a palynological study was designed and conducted based on close sampling of the four lithofacies associations, labelled A to D, in ascending order. The study was quantitative and focused on palynological associations to determine the palaeoenvironment, palaeoclimate, biostratigraphy and age of the exposure. The rich palynological assemblages comprise spores from seedless plants, gymnosperms, angiosperms, fungi, freshwater algae, acritarchs and dinoflagellate cysts. Bryophyte spores were abundant mainly in Facies A and B, with <i>Zlivisporis cenomanianus</i> taking over the habitat of bryophytes in Facies D. Lycophytes abundant in the alluvial and coastal plains are considered to have been transported. Conifer pollen represent the predominant group of gymnosperms, mainly transported into the section. Freshwater algal remains include <i>Schizophacus laevigatus</i>/<i>Ovoidites parvus</i>, <i>Schizosporis reticulatus</i>, <i>Botryococcus</i> sp. and <i>Pediastrum</i> sp. The overall terrestrial vegetation represented in the palynological assemblages indicates tropical to subtropical palaeoclimatic conditions. In addition, the assemblage richness and abundance peaks of dinoflagellate cysts are interpreted as an increased marine influence and possible flooding surfaces. The results support the alternation of marine incursions within deltaic and floodplain sequences related to short term climate oscillations that affected the vegetation on the upland and lowland drainage areas. Key palynological markers point to an early Late Cenomanian age whereas the <i>Cyclonephelium compactum–membraniphorum</i> (Ccm morphological plexus) presence signals the incursion of boreal waters during the Plenus Cold Event of the Ocean Anoxic Event 2 reaching the southern coast of Appalachia.
DOI: 10.6084/m9.figshare.28303654
title: Origin of floral resources used by two species of native bees in a livestock agroecological system in Colombia

description: Extensive cattle ranching has been widely recognised for its negative impacts on biodiversity, including the loss of floral resources and nesting sites crucial for pollinators. Silvopastoral systems (SPS), which include practices like integrating trees and shrubs into pastures, are promoted as a sustainable strategy to mitigate these impacts. This study examined the dietary resources of two native stingless bee species, <i>Frieseomelitta paupera</i> and <i>Tetragonisca angustula</i>, within a silvopastoral landscape in the Magdalena Medio region of Colombia. Through palynological analysis of honey and pollen samples, we identified the botanical origins of their diets, associating floral resources with distinct land-use types: agricultural, buffer, and conservation areas. A total of 73 pollen types from 35 botanical families were identified, with buffer areas contributing the greatest richness and abundance of floral resources. <i>Frieseomelitta paupera</i> exhibited a broader range of floral resource use, while <i>T. angustula</i> relied more heavily on buffer and agricultural zones. Minimal dietary overlap between the species highlights their ecological complementarity. These findings demonstrate that SPS enhance resource availability for pollinators, promoting both agricultural productivity and biodiversity conservation. By fostering plant diversity and year-round floral availability, SPS emerge as a valuable tool for sustainable land-use management and pollinator preservation in tropical grazing systems.
DOI: 10.6084/m9.figshare.28303654.v2
title: Origin of floral resources used by two species of native bees in a livestock agroecological system in Colombia

description: Extensive cattle ranching has been widely recognised for its negative impacts on biodiversity, including the loss of floral resources and nesting sites crucial for pollinators. Silvopastoral systems (SPS), which include practices like integrating trees and shrubs into pastures, are promoted as a sustainable strategy to mitigate these impacts. This study examined the dietary resources of two native stingless bee species, <i>Frieseomelitta paupera</i> and <i>Tetragonisca angustula</i>, within a silvopastoral landscape in the Magdalena Medio region of Colombia. Through palynological analysis of honey and pollen samples, we identified the botanical origins of their diets, associating floral resources with distinct land-use types: agricultural, buffer, and conservation areas. A total of 73 pollen types from 35 botanical families were identified, with buffer areas contributing the greatest richness and abundance of floral resources. <i>Frieseomelitta paupera</i> exhibited a broader range of floral resource use, while <i>T. angustula</i> relied more heavily on buffer and agricultural zones. Minimal dietary overlap between the species highlights their ecological complementarity. These findings demonstrate that SPS enhance resource availability for pollinators, promoting both agricultural productivity and biodiversity conservation. By fostering plant diversity and year-round floral availability, SPS emerge as a valuable tool for sustainable land-use management and pollinator preservation in tropical grazing systems.
DOI: 10.6084/m9.figshare.28342886
title: Nomenclatural and taxonomic notes on the fossil pollen genus <i>Sparganiaceaepollenites</i> Thiergart 1937

description: The nomenclature and status of the fossil-genus <i>Sparganiaceaepollenites</i> Thiergart 1937 and several of its species are problematic. We confirm the status of the genus and provide an emended description for it to accommodate new characters that were recently described in some species. We note that (i) the name <i>Sparganiaceaepollenites microreticulatus</i> Grabowska and Ważyńska 2009 from the Miocene of Poland is illegitimate according to the rules of the <i>International Code of Nomenclature for algae, fungi, and plants</i>, as a later homonym of <i>Sparganiaceaepollenites microreticulatus</i> Kar and Jain 1981 from the Miocene of India; (ii) the name <i>Sparganiaceaepollenites reticulatus</i> Samant et al. 2022 from the Maastrichtian of India is illegitimate as a later homonym of <i>Sparganiaceaepollenites reticulatus</i> Doktorowicz-Hrebnicka 1960 ex Krutzsch and Vanhoorne 1977 from the Miocene of Poland; and (iii) the name <i>Sparganiaceaepollenites annulatus</i> Thakre et al. 2024 from the Danian of India is illegitimate as a later homonym of <i>Sparganiaceaepollenites annulatus</i> De Benedetti 2023 from the Maastrichtian–Danian of Argentina. We propose the new names (i) <i>Sparganiaceaepollenites oczkowicensis</i> nom. nov. subst. pro <i>Sparganiaceaepollenites microreticulatus</i> Grabowska and Ważyńska; and (ii) <i>Sparganiaceaepollenites intertrappeansis</i> nom. nov. subst. pro <i>S. reticulatus</i> Samant et al. (an emended description is provided). Additionally, <i>Sparganiaceaepollenites annulatus</i> Thakre et al. is considered a heterotypic synonym of <i>Sparganiaceaepollenites intertrappeansis</i> nom. nov.
DOI: 10.6084/m9.figshare.28342886.v2
title: Nomenclatural and taxonomic notes on the fossil pollen genus <i>Sparganiaceaepollenites</i> Thiergart 1937

description: The nomenclature and status of the fossil-genus <i>Sparganiaceaepollenites</i> Thiergart 1937 and several of its species are problematic. We confirm the status of the genus and provide an emended description for it to accommodate new characters that were recently described in some species. We note that (i) the name <i>Sparganiaceaepollenites microreticulatus</i> Grabowska and Ważyńska 2009 from the Miocene of Poland is illegitimate according to the rules of the <i>International Code of Nomenclature for algae, fungi, and plants</i>, as a later homonym of <i>Sparganiaceaepollenites microreticulatus</i> Kar and Jain 1981 from the Miocene of India; (ii) the name <i>Sparganiaceaepollenites reticulatus</i> Samant et al. 2022 from the Maastrichtian of India is illegitimate as a later homonym of <i>Sparganiaceaepollenites reticulatus</i> Doktorowicz-Hrebnicka 1960 ex Krutzsch and Vanhoorne 1977 from the Miocene of Poland; and (iii) the name <i>Sparganiaceaepollenites annulatus</i> Thakre et al. 2024 from the Danian of India is illegitimate as a later homonym of <i>Sparganiaceaepollenites annulatus</i> De Benedetti 2023 from the Maastrichtian–Danian of Argentina. We propose the new names (i) <i>Sparganiaceaepollenites oczkowicensis</i> nom. nov. subst. pro <i>Sparganiaceaepollenites microreticulatus</i> Grabowska and Ważyńska; and (ii) <i>Sparganiaceaepollenites intertrappeansis</i> nom. nov. subst. pro <i>S. reticulatus</i> Samant et al. (an emended description is provided). Additionally, <i>Sparganiaceaepollenites annulatus</i> Thakre et al. is considered a heterotypic synonym of <i>Sparganiaceaepollenites intertrappeansis</i> nom. nov.
DOI: 10.6084/m9.figshare.28303654.v1
title: Origin of floral resources used by two species of native bees in a livestock agroecological system in Colombia

description: Extensive cattle ranching has been widely recognized for its negative impacts on biodiversity, including the loss of floral resources and nesting sites crucial for pollinators. Silvopastoral systems (SPS), which include practices like integrating trees and shrubs into pastures, are promoted as a sustainable strategy to mitigate these impacts. This study examined the dietary resources of two native stingless bee species, <i>Frieseomelitta paupera</i> and <i>Tetragonisca angustula</i>, within a silvopastoral landscape in the Magdalena Medio region of Colombia. Through palynological analysis of honey and pollen samples, we identified the botanical origins of their diets, associating floral resources with distinct land-use types: agricultural, buffer, and conservation areas. A total of 73 pollen types from 35 botanical families were identified, with buffer areas contributing the greatest richness and abundance of floral resources. <i>F. paupera</i> exhibited a broader range of floral resource use, while <i>T. angustula</i> relied more heavily on buffer and agricultural zones. Minimal dietary overlap between the species highlights their ecological complementarity. These findings demonstrate that SPS enhance resource availability for pollinators, promoting both agricultural productivity and biodiversity conservation. By fostering plant diversity and year-round floral availability, SPS emerge as a valuable tool for sustainable land-use management and pollinator preservation in tropical grazing systems.
DOI: 10.6084/m9.figshare.28342886.v1
title: Nomenclatural and taxonomic notes on the fossil pollen genus <i>Sparganiaceaepollenites</i> Thiergart 1937

description: The nomenclature and status of the fossil-genus <i>Sparganiaceaepollenites</i> Thiergart 1937 and several of its species are problematic. We confirm the status of the genus and provide an emended description for it to accommodate new characters that were recently described in some species. We note that 1) the name <i>Sparganiaceaepollenites microreticulatus</i> Grabowska and Ważyńska 2009 from the Miocene of Poland is illegitimate according to the rules of the International Code of Nomenclature for algae, fungi, and plants, as a later homonym of <i>Sparganiaceaepollenites microreticulatus</i> Kar and Jain 1981 from the Miocene of India; 2) the name <i>Sparganiaceaepollenites reticulatus</i> Samant et al. 2022 from the Maastrichtian of India is illegitimate as a later homonym of <i>Sparganiaceaepollenites reticulatus</i> Doktorowicz-Hrebnicka 1960 ex Krutzsch and Vanhoorne 1977 from the Miocene of Poland; and 3) the name <i>Sparganiaceaepollenites annulatus</i> Thakre et al. 2024 from the Danian of India is illegitimate as a later homonym of <i>Sparganiaceaepollenites annulatus</i> De Benedetti 2023 from the Maastrichtian–Danian of Argentina. We propose the new names 1) <i>Sparganiaceaepollenites oczkowicensis</i> nom. nov. subst. pro <i>Sparganiaceaepollenites microreticulatus</i> Grabowska and Ważyńska; and 2) <i>Sparganiaceaepollenites intertrappeansis</i> nom. nov. subst. pro <i>S. reticulatus</i> Samant et al. (an emended description is provided). Additionally, <i>S. annulatus</i> Thakre et al. is considered a heterotypic synonym of <i>Sparganiaceaepollenites intertrappeansis</i> nom. nov.
DOI: 10.6084/m9.figshare.28525358.v1
title: The biostratigraphy and palaeogeography of acritarchs, chitinozoans, and cryptospores from the Upper Ordovician Ghelli Formation, Khoshyeilagh region, southern Caspian Sea, Alborz Mountains, northern Iran

description: In the Khoshyeilagh region, 70 km north of Shahroud city, northern Iran, a siliciclastic succession of Lower Palaeozoic strata, including the Lalun, Mila, Lashkarak, and Ghelli formations occurs alongside igneous rocks. These strata contain various organic-walled microfossils, spanning acritarchs, chitinozoans, cryptospores, scolecodonts, and graptolite remains. This study assesses the biostratigraphical significance of marine microfauna (chitinozoans), microflora (acritarchs), and terrestrial cryptospores in this part of the Alborz Mountains. Eighty-eight surface samples were collected from the above-mentioned formations, with six samples barren due to red sediments or igneous rocks. The remaining samples yielded 118 palynomorph taxa: 55 species of acritarchs (28 genera), 48 species of chitinozoa (18 genera), and 15 cryptospore species (10 genera). Scolecodonts and graptolite remains were observed but not studied in detail. No palynomorphs were found in the Lalun, Mila, and Lashkarak formations, while the Ghelli Formation contained well-preserved, abundant organic-walled microfossils. These findings suggest that the Alborz Mountains were part of the Peri-Gondwana palaeo-province during the Late Ordovician. The co-occurrence of acritarchs, chitinozoans, and cryptospores in the Ghelli Formation indicates their potential for global chronostratigraphical correlation. The palynological assemblages suggest a shallow inner shelf environment during the Late Ordovician in the Khoshyeilagh region. Two hiatuses were identified: between the Lalun and Lashkarak formations and between the Ghelli and Soltan Meidan formations. This study also introduces 15 new morphotypes, including ten new species of acritarchs and five new species of chitinozoa, detailed in the systematic sections.
DOI: 10.15468/dl.3t8jw6
title: Occurrence Download

description: A dataset containing 109254 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((-0.13568 42.79038,-0.20583 42.78008,-0.20834 42.68415,-0.18339 42.64174,-0.14597 42.58207,-0.03684 42.54648,0.0832 42.49822,0.12529 42.49133,0.14711 42.56026,0.17829 42.60732,0.18297 42.66696,0.15179 42.73112,0.01304 42.70707,-0.04464 42.70019,-0.10232 42.7357,-0.12882 42.77805,-0.13568 42.79038))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "TaxonKey is Tracheophyta"
 ]
}

 The dataset includes 109254 records from 124 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005422-260120142942310/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.69khzv
title: Occurrence Download

description: A dataset containing 2 species occurrences available in GBIF matching the query:
{"type":"and","predicates":[{"type":"within","geometry":"POLYGON ((99.23099999999999 9.033078, 99.159862 9.027506000000001, 99.090481 9.010926, 99.024573 8.983749, 98.963764 8.946645999999999, 98.909554 8.900532999999999, 98.86327900000001 8.846549, 98.826078 8.786027000000001, 98.798863 8.720458000000001, 98.78230000000001 8.65146, 98.776792 8.580733, 98.782466 8.510018000000001, 98.799179 8.441058, 98.82651300000001 8.375546999999999, 98.86378999999999 8.315097, 98.91009099999999 8.261194, 98.964275 8.215161999999999, 99.025007 8.178132, 99.09079699999999 8.151013000000001, 99.160028 8.134471, 99.23099999999999 8.128911, 99.30197200000001 8.134471, 99.37120299999999 8.151013000000001, 99.436993 8.178132, 99.497725 8.215161999999999, 99.55190899999999 8.261194, 99.59820999999999 8.315097, 99.635487 8.375546999999999, 99.66282099999999 8.441058, 99.679534 8.510018000000001, 99.685208 8.580733, 99.6797 8.65146, 99.66313700000001 8.720458000000001, 99.63592199999999 8.786027000000001, 99.598721 8.846549, 99.552446 8.900532999999999, 99.49823600000001 8.946645999999999, 99.437427 8.983749, 99.37151900000001 9.010926, 99.302138 9.027506000000001, 99.23099999999999 9.033078))"},{"type":"equals","key":"CLASS_KEY","value":"212","matchCase":false},{"type":"greaterThanOrEquals","key":"YEAR","value":"2015","matchCase":false},{"type":"not","predicate":{"type":"in","key":"BASIS_OF_RECORD","values":["MATERIAL_CITATION","MATERIAL_SAMPLE","PRESERVED_SPECIMEN"],"matchCase":false}},{"type":"lessThanOrEquals","key":"COORDINATE_UNCERTAINTY_IN_METERS","value":"10000","matchCase":false},{"type":"equals","key":"LICENSE","value":"CC BY 4.0","matchCase":false}]}

 The dataset includes 2 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005496-260120142942310/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.5519/qd.0vktxawk
title: Query on the Natural History Museum Data Portal (data.nhm.ac.uk) (38 records)
DOI: 10.7927/dkf1-wj68
title: Sixth Assessment Report of the Intergovernmental Panel on Climate Change Working Group II Observed and Projected Impact Assessment Database
title: IPCC AR6 WGII Observed and Projected Impact Assessment Database

description: The Sixth Assessment Report (AR6) of the Intergovernmental Panel on Climate Change (IPCC) Working Group II (WGII) assesses and reports on how worldwide climate change has been increasingly affecting marine, freshwater and terrestrial ecosystems and ecosystem services, water and food security, settlements and infrastructure, health and well-being, and economies and culture, especially through compound stresses and events. This IPCC AR6 WGII Observed and Projected Impact Assessment Database compiles the relevant datasets used to produce final figures and tables that summarize the assessments of observed and projected impacts, which brings together the relevant data underpinning graphic outputs from the impact assessments across individual sectoral, regional and global assessments.
DOI: 10.15468/dl.6u4jcu
title: Occurrence Download

description: A dataset containing 19 species occurrences available in GBIF matching the query:
{"type":"and","predicates":[{"type":"within","geometry":"POLYGON ((98.98999999999999 9.075077, 98.918853 9.069504999999999, 98.849465 9.052925, 98.78354899999999 9.025748, 98.72273300000001 8.988645, 98.66851699999999 8.942532, 98.622238 8.888548, 98.585032 8.828025, 98.55781500000001 8.762456, 98.541251 8.693458, 98.535742 8.622731, 98.541417 8.552016999999999, 98.558132 8.483057000000001, 98.585469 8.417546, 98.62275099999999 8.357097, 98.669057 8.303194, 98.723246 8.257163, 98.783986 8.220133000000001, 98.849782 8.193014, 98.91902 8.176472, 98.98999999999999 8.170912, 99.06098 8.176472, 99.130218 8.193014, 99.19601400000001 8.220133000000001, 99.256754 8.257163, 99.31094299999999 8.303194, 99.357249 8.357097, 99.394531 8.417546, 99.421868 8.483057000000001, 99.43858299999999 8.552016999999999, 99.444258 8.622731, 99.438749 8.693458, 99.422185 8.762456, 99.39496800000001 8.828025, 99.35776199999999 8.888548, 99.311483 8.942532, 99.257267 8.988645, 99.196451 9.025748, 99.13053499999999 9.052925, 99.06114700000001 9.069504999999999, 98.98999999999999 9.075077))"},{"type":"equals","key":"CLASS_KEY","value":"212","matchCase":false},{"type":"greaterThanOrEquals","key":"YEAR","value":"2015","matchCase":false},{"type":"not","predicate":{"type":"in","key":"BASIS_OF_RECORD","values":["MATERIAL_CITATION","MATERIAL_SAMPLE","PRESERVED_SPECIMEN"],"matchCase":false}},{"type":"lessThanOrEquals","key":"COORDINATE_UNCERTAINTY_IN_METERS","value":"10000","matchCase":false},{"type":"equals","key":"LICENSE","value":"CC BY 4.0","matchCase":false}]}

 The dataset includes 19 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0005497-260120142942310/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15482/usda.adc/30988474
title: Data from: Multi-year drought has persistent forage quality and quantity effects that can be intensified by heavy grazing in semiarid rangelands

description: These data were collected as part of a larger research project, called Grazing Management for Drought Resilience (GMDR), which aims to understand how management strategies impact rangeland ecosystem health across varying drought magnitudes. Growing season droughts have major impacts on grassland vegetation and are predicted to become increasingly frequent in semi-arid prairies of North America, but little is known about how droughts and post-drought legacies interact with grazing management to affect forage quality and quantity. The study was conducted in eastern Montana at the Fort Keogh Livestock and Range Research Laboratory and a private cattle ranch in the Thunder Basin region of northeastern Wyoming. We experimentally manipulated grazing and rainfall reduction in a full factorial design (3 grazing × 5 precipitation levels). Experimental treatments were used to assess both short and long-term changes in forage quantity and quality. Grazing treatments were implemented in early July in Wyoming and early August in Montana. Forage, consisting of living and dead herbaceous material (e.g. grass, forb) was sampled in May, June, and July for 5 years (2019-2023). Samples were dried and weighed to obtain biomass measurements and subsequently ground for analysis of quality including digestible organic matter and percent fiber. In addition, these data include two composite indices of digestibility: relative feed value (unitless index based on digestibility and fiber content) and digestible forage biomass (g × m-2).
DOI: 10.15482/usda.adc/30988474.v1
title: Data from: Multi-year drought has persistent forage quality and quantity effects that can be intensified by heavy grazing in semiarid rangelands

description: These data were collected as part of a larger research project, called Grazing Management for Drought Resilience (GMDR), which aims to understand how management strategies impact rangeland ecosystem health across varying drought magnitudes. Growing season droughts have major impacts on grassland vegetation and are predicted to become increasingly frequent in semi-arid prairies of North America, but little is known about how droughts and post-drought legacies interact with grazing management to affect forage quality and quantity. The study was conducted in eastern Montana at the Fort Keogh Livestock and Range Research Laboratory and a private cattle ranch in the Thunder Basin region of northeastern Wyoming. We experimentally manipulated grazing and rainfall reduction in a full factorial design (3 grazing × 5 precipitation levels). Experimental treatments were used to assess both short and long-term changes in forage quantity and quality. Grazing treatments were implemented in early July in Wyoming and early August in Montana. Forage, consisting of living and dead herbaceous material (e.g. grass, forb) was sampled in May, June, and July for 5 years (2019-2023). Samples were dried and weighed to obtain biomass measurements and subsequently ground for analysis of quality including digestible organic matter and percent fiber. In addition, these data include two composite indices of digestibility: relative feed value (unitless index based on digestibility and fiber content) and digestible forage biomass (g × m-2).