Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
305
datasets available to search
ShareScore release 0.9.0
Dataset results
305 results for “Palaeoecology”
Palaeoecological records from BJM2 sediment core (Sebkha Boujmel, Southern Tunisia. 33°18'30.96" N, 11°5'0.68" E)
<p>Palaeoecological records from BJM2 sediment core (Sebkha Boujmel, Southern Tunisia. 33°18’30.96” N, 11°5’0.68” E (Latitude Y 33.3086, Longitude X 11.083522).</p> <p>1. Conventional AMS radiocarbon dates and reservoir-corrected and 2σ range calibrated ages from Sebkha Boujmel (BJM2 core).</p> <p>2. Output of the age-depth model for BJM2 core indicating depth and associated mean date for each cm (cal yr BP). The age model was obtained by third-degree polynomial regression with 10k model iteration using the package Clam 2.2.</p> <p>3. Pollen percentage for the three ecological groups (Mediterranean, steppe and desert taxa). The percentages are calculated with respect to a basic sum that only includes these three groups. Pollen taxa and types from the same genus or family and with the same ecology are grouped; including Boraginaceae (Moltkiopsis ciliata, Onosma and Echium), Ephedra sp. (Ephedra fragilis-t. and Ephedra distachia-t.) and Zygophyllaceae (Fagonia, Nitraria and Zygophyllum). Percentage of aquatics pollen are calculated based on the total sum of pollen grains identified in each pollen spectrum.</p> <p>4. Pollen and clay mineralogy data from Sebkha Boujmel. Percentages of (1) <strong>fresh water</strong> (Cyperaceae, Glyceria, Juncus, Lemna, Potamogeton, Rumex aquaticus-t., Typha/Sparganium-t.) and <strong>(2) Mediterranean tree and shrub</strong> (Buxus, Ceratonia, Cistus, Juniperus, Lamiaceae, Myrtus, Nerium, Olea, Papaveraceae, Pinus, Pistacia, Quercus ilex-t., Quercus deciduous-t., Rhus tripartita-t.) pollen taxa. (3) <strong>Wet / dry (W / D) pollen ratio</strong> (Poaceae + Cyperaceae/Asteraceae Cichorioideae + Asteraceae Asteroideae + Amaranthaceae Cornulaca/Traganum-t.). (4) <strong>Percentages of desert pollen taxa</strong> (Apiaceae, Asphodelus, Asteraceae Asteroideae, Asteraceae Cichorioideae, Calligonum, Capparis, Cistanche, Cleome, Cornulaca/Traganum-t., Crassulaceae, Cucurbitaceae, Echium, Ephedra distachia-t., Ephedra fragilis-t., Fagonia, Helianthemum, Malvaceae, Moltkiopsis ciliata, Neurada, Nitraria, Onosma, Reaumuria, Tamarix and Zygophyllum). (5) <strong>Illite</strong> <strong>[%] (Ill) / Kaolinite [%] (Kln) ratio</strong> and (6) <strong>Palygorskite percentages [%] (Plg)</strong>.</p> <p>5. Pollen percentage of Artemisia and selected anthropogenic pollen indicators (APIs) including cultivated (Cerealia-t., Corchorus, Ficus, Olea, Phoenix, Vitis), nitrophilous (Aizoaceae, Emex, Peganum, Polygonum) and introduced (Acacia cyanophylla-t., Casuarina, Eucalyptus) plant taxa. Percentage are calculated based on the total sum of pollen grains identified in each pollen spectrum.</p> <p>6. Pollen counts for BJM2 core (pollen grain count for each taxon by sample). + Lycopodium (added), Lycopodium (counted) and Sample weight [gr].</p> <p>7. Clay Mineralogy of BJM2 sediment core. </p> <p>Smectite [%] (Sme), METHOD/DEVICE: X-ray diffraction, clay fraction</p> <p>Illite [%] (Ill), METHOD/DEVICE: X-ray diffraction, clay fraction</p> <p>Palygorskite [%] (Plg), METHOD/DEVICE: X-ray diffraction, clay fraction</p> <p>Kaolinite [%] (Kln), METHOD/DEVICE: X-ray diffraction, clay fraction</p> <p>Chlorite [%] (Chl), METHOD/DEVICE: X-ray diffraction, clay fraction</p>
FIG. 2 in Early Eocene Caenogastropods (Mollusca, Gastropoda) from Haymana-Polatl Basin, Central Anatolia (Turkey): taxonomy and palaeoecology
FIG. 2. — Correlation table between the time scales, stages and biozones for the Upper Paleocene-Lower Eocene chronostratigraphy (compiled from Berggren et al. 1985, 1995; Serra-Kiel et al. 1998; Berggren & Aubry 1998; Aubry 2000; Luterbacher et al. 2004; Pujalte et al. 2009a, b).
Fig. 14 in Palaeoecology of corals and stromatoporoids in a late Silurian biostrome in Estonia
Fig. 14. Interpreted reconstruction of faunas and sea-floor appearances of Facies 2 at Katri, represented by Layers 2 and 4.
Fig. 9 in Palaeoecology of corals and stromatoporoids in a late Silurian biostrome in Estonia
Fig. 9. Slab and thin section photographs of tabulate corals from Katri biostrome, upper Ludlow, Silurian, showing the identifications of taxa. A–D. Favosites forbesi Milne-Edwards and Haime, 1851. A. GIT656-27, vertical polished slab of bulbous corallum showing different growth centres. B. GIT656-17, transverse thin-section. C. GIT656-54, vertical thin-section. D. GIT656-56, vertical slab of columnar corallum in sediment. E, F. Thecia swinderniana Goldfuss, 1829. E. GIT656-20, vertical slab of tabular corallum. F. GIT656-62, transverse (F1) and vertical (F2) thin-sections. G, H. Thin- → sections of Kitakamiia callosa Klaamann, 1964. G. GIT656-98, vertical section through rugosan with K. callosa. H. GIT656-90, transverse section. I, J. Thin-sections of Laceripora cribrosa Eichwald, 1854. I. GIT656-29, vertical section through the base of corallum. J. GIT656-10, vertical section through the branching corallum. K. Symbitoic Syringopora affabilis Klaamann, 1962 within stromatoporoid Petridiostroma convictum Yavorsky, 1929, GIT656-38, transverse section (K1), which also has rugose corals within the stromatoporoid; vertical section (K2). Scale bars 10 mm.
Palaeoecological data of KP core, Kampar Peninsula, Riau, Sumatra, Indonesia
<p>Southeast Asian peatlands, along with their various important ecosystem services, are mainly distributed in the coastal areas of Sumatra and Borneo. These ecosystems are threatened by coastal development, global warming and sea level rise (SLR). Despite receiving growing attention for their biodiversity and as massive carbon stores, there is still a lack of knowledge on how they initiated and evolved over time, and how they responded to past environmental change, i.e., precipitation, sea level and early anthropogenic activities. To improve our understanding thereof, we conducted multi-proxy palaeoecological studies in the Kampar Peninsula and Katingan peatlands in the coastal area of Riau and Central Kalimantan, Indonesia. The results indicate that the initiation timing and environment of both peatlands are very distinct, suggesting that peat could form under various vegetation as soon as there is sufficient moisture to limit organic matter decomposition. The past dynamics of both peatlands were mainly attributable to natural drivers, while anthropogenic activities were hardly relevant. Changes in precipitation and sea level led to shifts in peat swamp forest vegetation, peat accumulation rates, and fire regimes at both sites. We infer that the simultaneous occurrence of El Niño-Southern Oscillation (ENSO) events and SLR resulted in synergistic effects which led to the occurrenceere fires in a pristine coastal peatland ecosystem, however, it did not interrupt peat accretion. In the future, SLR, combined with the projected increase in frequency and intensity of ENSO, can potentially amplify the negative effects of anthropogenic peatland fires. This prospectively stimulates massive carbon release, thus could, in turn, contribute to worsening the global climate crisis especially once an as yet unknown threshold is crossed and peat accretion is halted, i.e., peatlands lose their carbon sink function. Given the current rapid SLR, coastal peatland managements should start develop fire risk reduction or mitigation strategies.</p>
Fig. 2 in Bony Fishes From The Late Miocene And Pliocene Strata Of Popovo Locality (Ukraine): Taxonomic Changes And Their Palaeoecological Explanation
Fig. 2. Dynamics of taxonomic changes in bony fish communities from Popovo during the Late Miocene and Pliocene: 1 — species level; 2 — genus level; 3 — family level Рис. 2. Динамика таксономических изменений в сообществах костистых рыб из местонахождения Попово на протяжении позднего миоцена и плиоцена: 1 — уровень вида; 2 — уровень рода; 3 — уровень семейства.
Fig. 3 in Bony Fishes From The Late Miocene And Pliocene Strata Of Popovo Locality (Ukraine): Taxonomic Changes And Their Palaeoecological Explanation
Fig. 3. Connection between heterochronous bony fish communities from the Popovo locality: 1, 2 — minimal connection; 3, 5 — similar level of the taxonomic richness; 4, 6, 7 — substantial similarity of faunistic lists.
Fig. 1 in Late Neogene And Pleistocene Porgy Fishes (Teleostei, Sparidae) Of The Eastern Paratethys, With Comments On Their Palaeoecology
Fig. 1. Localities with fossil remains of sparid fishes from Ukraine and their stratigraphic sequence.
Plate 1 in Late Neogene And Pleistocene Porgy Fishes (Teleostei, Sparidae) Of The Eastern Paratethys, With Comments On Their Palaeoecology
Plate 1. Molariform teeth and their fragments assigned to Pagrus sp. (figs 1–6), Pagrus cinctus (figs 7–11) and Sparidae gen. et sp. indet. (figs 12–13): 1 — unnumbered, Shirokino 2; 2 — unnumbered, Shirokino 2; 3 — unnumbered, Shirokino 2; 4 — unnumbered, Shirokino 2; 5 — NMNHU-P 53/5117, Novopetrovka; 6 — NMN- HU-P 53/5118, Novopetrovka; 7 — NMNHU-P 29/229, Bezymiannoe; 8 — unnumbered, apical view, Mariupol'; 9 — NMNHU-P 53/5119, Trudomirovka; 10 — unnumbered, apical view, Mariupol'; 11 — unnumbered, apical view, Mariupol'; 12 — unnumbered, apical view, Mariupol'; 13 — NMNHU-P 29/228, Bezymiannoe. Apical view in a, basal in b, lateral in c.
Long-term demographic trends and spatio-temporal distribution of past human activity in Central Europe: Comparison of archaeological and palaeoecological proxies (datasets and R scripts)
<p>This digital archive is an outcome of the paper Kolář J., Macek M., Tkáč P., Novák D. & V.Abraham: Long-term demographic trends and spatio-temporal distribution of past human activity in Central Europe: Comparison of archaeological and palaeoecological proxies. Quaternary Science Reviews, 2022</p>
FIG. 3. — A, Gyrostrea A in Systematics, palaeoecology and taphonomy of Turonian oysters from the northern Gabon Coastal Basin
FIG. 3. — A, Gyrostrea A MDG/LBV/Lm-13; B, C, Rhynchostreon cf. suborbiculatum (Lamarck, 1801) MDG/LBV/Lm-9; D-F, Gryphaeostrea sp.; D-E, MDG/LBV/Lm- 7.1, F. MDG/LBV/Lm-7.2; G, H, Curvostrea tevesthensis (Coquand, 1862) MDG/LBV/Lm-11; I-M, Ilymatogyra (Afrogyra) africana (Lamarck, 1801); I, J, MDG/LBV/ Lm-8.3, K. MDG/LBV/Lm-8.2, L-M. MDG/LBV/Lm-8.1; N, Q, Ostreidea gen. et sp.; indet MDG/LBV/Lm-34; O, P. Pycnodonte sp. MDG/LBV/Lm-10. Scale bar: 1 cm.
FIG. 4. — A-D in Systematics, palaeoecology and taphonomy of Turonian oysters from the northern Gabon Coastal Basin
FIG. 4. — A-D, Ostrea sp. D: A, B, MDG/LBV/Lm-33.1; C, D, MDG/LBV/Lm-33.2; E, Ostrea sp. C MDG/LBV/Lm-32.1; F, Gyrostrea sp. B MDG/LBV/Lm-14; G-N, Gyrostrea delettrei (Coquand, 1862); G, H, MDG/LBV/Lm-12.1; I, J, MDG/LBV/Lm-12.2; K, L, MDG/LBV/Lm-12.3, M-N. MDG/LBV/Lm-12.4; O-R, Ostrea sp. B; O, P, MDG/LBV/Lm-31.1; Q, R, MDG/LBV/Lm-31.2; S-U, Ostrea sp. A, S-T. MDG/LBV/Lm-15.1; U, MDG/LBV/Lm-15.2. Scale bar: 1 cm.
Fig. 12 in A comparison of teeth in Tithonian, Late Jurassic, predatory actinopterygian fishes from Owadów-Brzezinki Lägerstatte and its palaeoecological implications
Fig. 12. Comparison of generalized teeth vertical cross sections of the studied taxa. A. Caturoidea. B. Pachycormidae. Not to scale.
Fig. 8 in A comparison of teeth in Tithonian, Late Jurassic, predatory actinopterygian fishes from Owadów-Brzezinki Lägerstatte and its palaeoecological implications
Fig. 8. SEM overview of tooth of caturoid fish Strobilodus sp. ZPAL P. 16/O-B/2 from Tithonian, Upper Jurassic Kcynia Formation, Corbulomima Limestone (Unit III), Owadów-Brzezinki, Poland. A. Mid-crown section with visible layer of enameloid (en). B. Basal section with exposed orthodentin (ort). C, D. Overview in apical-mid-crown surface. E–H. Changes in enameloid structure from linear through irregular to scale-like in basal direction.
Fig. 5 in A comparison of teeth in Tithonian, Late Jurassic, predatory actinopterygian fishes from Owadów-Brzezinki Lägerstatte and its palaeoecological implications
Fig. 5. Vertical cross-section of tooth of pachycormid fish Orthocormus teyleri Lambers, 1988, NG/PAL/VERT/OB/O1 thin section from ZPAL P. 16/OB/3 from Tithonian, Upper Jurassic Kcynia Formation, Corbulomima Limestone (Unit III), Owadów-Brzezinki, Poland. Basal (A1), mid-crown (A2), and apical (A3) planes, with visible acrodin cap. Internal structure (A4), with visible denteonal canals (white arrows) and inter-denteonal dentin (black arrows).
Fig. 1. A in A comparison of teeth in Tithonian, Late Jurassic, predatory actinopterygian fishes from Owadów-Brzezinki Lägerstatte and its palaeoecological implications
Fig. 1. A. Lithological succession and biostratigraphy of the Owadów-Brzezinki Quarry. The topmost part of the Pałuki Formation and overlying limestone of the Kcynia Formation (Units I–IV). B. Road map with the location of the Owadów-Brzezinki site and its proximity to Tomaszów Mazowiecki in Central Poland. C. General view of the Owadów-Brzezinki section (i.e., Unit III and most fossiliferous Corbulomima Limestone occurring in the middle of the quarry wall).
Fig. 2 in A comparison of teeth in Tithonian, Late Jurassic, predatory actinopterygian fishes from Owadów-Brzezinki Lägerstatte and its palaeoecological implications
Fig. 2. Studied specimens of actinopterygian fishes from Tithonian, Upper Jurassic Kcynia Formation, Corbulomima Limestone (Unit III), OwadówBrzezinki, Poland. A–C. Loose teeth of Caturoidea indet. A. ZPAL P. 16/O-B/FT1. B. ZPAL P. 16/O-B/FT2. C. ZPAL P. 16/O-B/FT3. D. Caturoid Strobilodus sp., ZPAL P. 16/O-B/2, right dentary in lateral view. E. Pachycormid Orthocormus teyleri Lambers, 1988, ZPAL P. 16/O-B/3, left dentary (E1) and right dentary (E2) in lateral view. Dashed white lines indicate thin-sectioning plane; white arrows indicate which teeth were sampled for thin-sectioning (TS), black arrows indicate which samples were chosen for SEM analysis.
Fig. 4 in A comparison of teeth in Tithonian, Late Jurassic, predatory actinopterygian fishes from Owadów-Brzezinki Lägerstatte and its palaeoecological implications
Fig. 4. Cross-sections of teeth caturoidean fishes Strobilodus sp. from Tithonian, Upper Jurassic Kcynia Formation, Corbulomima Limestone (Unit III), Owadów-Brzezinki, Poland. A–C. NG/PAL/VERT/OB/C1–C3, respectively, thin sections from ZPAL P.16./O-B/2, in apical (A1), mid-crown (B1), and basal (C) planes, documenting relative increase in dental pulp cavity diameter in basal direction. Incremental growth lines: irregular (A2) and more regular B2) patterns of growth are documented. Dentin drillings (arrows) present sub-superficially (B3) and superficially (B4).
Fig. 7 in A comparison of teeth in Tithonian, Late Jurassic, predatory actinopterygian fishes from Owadów-Brzezinki Lägerstatte and its palaeoecological implications
Fig. 7. Teeth eruption from alveolar bone of Orthocormus teyleri Lambers, 1988, NG/PAL/VERT/OB/O4 thin section from ZPAL P. 16/O-B/3 from Tithonian, Upper Jurassic Kcynia Formation, Corbulomima Limestone (Unit III), Owadów-Brzezinki, Poland. A1, numerous teeth erupting in posterior tooth row; A2, A3, case of rapid teeth eruption, evidence of odontogenesis of one teeth specimen atop on the another tooth. Arrows indicate the observed phenomenon.
Fig. 3 in A comparison of teeth in Tithonian, Late Jurassic, predatory actinopterygian fishes from Owadów-Brzezinki Lägerstatte and its palaeoecological implications
Fig. 3. Thin sections of teeth of caturoidean fishes Caturoidea indet. (A) and Strobilodus sp. (B, C) from Tithonian, Upper Jurassic Kcynia Formation, Corbulomima Limestone (Unit III), Owadów-Brzezinki, Poland. A. NG/PAL/VERT/OB/C5 thin section from ZPAL P.16./O-B/FT1. A1, general view of vertical thin section with orthodentin histology (ort) and thin enameloid layer (en); A2, close view of apical section, with prominent acrodin cap (ac); A3, A4, crown mid-section with angled orthodentin tubules (highlighted) present. B, C. Horizontal cross section of Strobilodus sp. teeth in apical plane. Arrows indicate phenomena. B. NG/PAL/VERT/OB/C7 thin section from ZPAL P.16./O-B/FT3. B1, overview of teeth structure, with slight mesiodistal compression and mostly solid structure; B2, carinae present as a perturbances in mesial and distal planes of teeth. C. NG/PAL/VERT/OB/C1 thin section from ZPAL P.16./O-B/O2, small central canal surrounded by prominent dental tubules of orthodentin.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.