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Book ; Online: Appendix A: Results of the pollen analysis of the PG1755 core from Lake Billyakh, supplementary data to: Müller, Stefanie; Tarasov, Pavel E; Andreev, Andrei A; Tütken, Thomas; Gartz, Steffi; Diekmann, Bernhard (2010): Late Quaternary vegetation and environments in the Verkhoyansk Mountains region (NE Asia) reconstructed from a 50-kyr fossil pollen record from Lake Billyakh. Quaternary Science Reviews, 29(17-18), 2071-2086

Müller, Stefanie / Andreev, Andrei A / Diekmann, Bernhard / Gartz, Steffi / Tarasov, Pavel E / Tütken, Thomas

2010

Abstract: Here we present a detailed radiocarbon-dated 936 cm long pollen record from Lake Billyakh (65°17?N, 126°47?E; 340 m a.s.l.) situated in the western part of the Verkhoyansk Mountains, about 140 km south of the Arctic Circle. A set of 53 surface pollen ... ...

Abstract	Here we present a detailed radiocarbon-dated 936 cm long pollen record from Lake Billyakh (65°17?N, 126°47?E; 340 m a.s.l.) situated in the western part of the Verkhoyansk Mountains, about 140 km south of the Arctic Circle. A set of 53 surface pollen samples representing tundra, cold deciduous forest and taiga was collected in northern and central Yakutia communities to verify the accuracy of the quantitative biome reconstruction method and to obtain a more precise attribution of the identified pollen taxa to the main regional biomes. The adjusted method is then applied to the pollen record from Lake Billyakh to gain a reconstruction of vegetation and environments since about 50.7 kyr BP. The results of the pollen analysis and pollen-based biome reconstruction suggest that herbaceous tundra and steppe communities dominated the area from 50.7 to 13.5 kyr BP. Relatively low pollen concentrations and high percentages of herbaceous pollen taxa (mainly Cyperaceae, Poaceae and Artemisia) likely indicate a reduced vegetation cover and/or lower pollen production. On the other hand, extremely low percentages of drought-tolerant taxa, such as Chenopodiaceae and Ephedra, and the constant presence of various mesophyllous herbaceous (Thalictrum, Rosaceae, Asteraceae) and shrubby taxa (Betula sect. Nanae/Fruticosae, Duschekia fruticosa, Salix) in the pollen assemblages prevent an interpretation of the last glacial environments around Lake Billyakh as extremely arid. The lowest pollen percentages of woody taxa and the highest values of Artemisia pollen attest that the 31-15 kyr BP period as the driest and coldest interval of the entire record. A relative high content of taxa representing shrub tundra communities and the presence of larch pollen recorded prior to 31 kyr and after 13.5 kyr BP likely indicate interstadial climate amelioration associated with the middle and latest parts of the last glacial. An increase in pollen percentages of herbaceous taxa around 12 kyr BP suggests broader distribution of drier communities in response to the colder and drier than present climate of the Younger Dryas (YD). The onset of the Holocene is marked in the pollen record by the highest values of shrub taxa, mainly B. sect. Nanae/Fruticosae. Pollen percentages of arboreal taxa increase gradually and reach maximum values after 7 kyr BP. The latter maximum mainly reflects the spread of Pinus sylvestris in central Yakutia as a response to the mid-Holocene climatic optimum. The quasi-continuous presence of larch, shrubby birch and alder pollen throughout the whole record is the most striking feature of the pollen record. Noticeable variations in larch pollen percentages point to multiple short-term warming episodes, which might be synchronous with the Dansgaard-Oeschger cycles in the North Atlantic records. The Lake Billyakh pollen record suggests that larch possibly survived during the last 50 kyr BP in locally favourable environments in the study region.
Language	English
Dates of publication	2010-9999
Size	Online-Ressource
Publisher	PANGAEA - Data Publisher for Earth & Environmental Science
Publishing place	Bremen/Bremerhaven
Document type	Book ; Online
Note	This dataset is supplement to doi:10.1016/j.quascirev.2010.04.024
DOI	10.1594/PANGAEA.729891
Database	Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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Book ; Online: Results of the pollen analysis of the Dyanushka peat sediments K7/P2, supplementary data to: Werner, Kirstin; Tarasov, Pavel E; Andreev, Andrei A; Müller, Stefanie; Kienast, Frank; Zech, Michael; Zech, Wolfgang; Diekmann, Bernhard (2010): A 12.5-kyr history of vegetation dynamics and mire development with evidence of Younger Dryas larch presence in the Verkhoyansk Mountains, East Siberia, Russia. Boreas, 39, 56-68

Werner, Kirstin / Andreev, Andrei A / Diekmann, Bernhard / Kienast, Frank / Müller, Stefanie / Tarasov, Pavel E / Zech, Michael / Zech, Wolfgang

2010

Abstract: A 415cm thick permafrost peat section from the Verkhoyansk Mountains was radiocarbon-dated and studied using palaeobotanical and sedimentological approaches. Accumulation of organic-rich sediment commenced in a former oxbow lake, detached from a ... ...

Abstract	A 415cm thick permafrost peat section from the Verkhoyansk Mountains was radiocarbon-dated and studied using palaeobotanical and sedimentological approaches. Accumulation of organic-rich sediment commenced in a former oxbow lake, detached from a Dyanushka River meander during the Younger Dryas stadial, at ~12.5 kyr BP. Pollen data indicate that larch trees, shrub alder and dwarf birch were abundant in the vegetation at that time. Local presence of larch during the Younger Dryas is documented by well-preserved and radiocarbon-dated needles and cones. The early Holocene pollen assemblages reveal high percentages of Artemisia pollen, suggesting the presence of steppe-like communities around the site, possibly in response to a relatively warm and dry climate ~11.4-11.2 kyr BP. Both pollen and plant macrofossil data demonstrate that larch woods were common in the river valley. Remains of charcoal and pollen of Epilobium indicate fire events and mark a hiatus ~11.0-8.7 kyr BP. Changes in peat properties, C31/C27 alkane ratios and radiocarbon dates suggest that two other hiatuses occurred ~8.2-6.9 and ~6.7-0.6 kyr BP. Prior to 0.6 kyr BP, a major fire destroyed the mire surface. The upper 60 cm of the studied section is composed of aeolian sands modified in the uppermost part by the modern soil formation. For the first time, local growth of larch during the Younger Dryas has been verified in the western foreland of the Verkhoyansk Mountains (~170km south of the Arctic Circle), thus increasing our understanding of the quick reforestation of northern Eurasia by the early Holocene.
Language	English
Dates of publication	2010-9999
Size	Online-Ressource
Publisher	PANGAEA - Data Publisher for Earth & Environmental Science
Publishing place	Bremen/Bremerhaven
Document type	Book ; Online
Note	This dataset is supplement to doi:10.1111/j.1502-3885.2009.00116.x
DOI	10.1594/PANGAEA.716835
Database	Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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Book ; Online: Pollen records from Bol'shoy Lyakhovsky Island, Siberia, supplementary data to: Andreev, Andrei A; Grosse, Guido; Schirrmeister, Lutz; Kuznetsova, Tatyana V; Kuzmina, Svetlana A; Bobrov, Anatoly A; Tarasov, Pavel E; Novenko, Elena Y; Meyer, Hanno; Derevyagin, Aleksandr Yu; Kienast, Frank; Bryantseva, Anna; Kunitsky, Victor V (2009): Weichselian and Holocene palaeoenvironmental history of the Bol'shoy Lyakhovsky Island, New Siberian Archipelago, Arctic Siberia. Boreas, 38(1), 72-110

Andreev, Andrei A / Bobrov, Anatoly A / Grosse, Guido / Kuzmina, Svetlana A / Kuznetsova, Tatyana V / Meyer, Hanno / Novenko, Elena Y / Schirrmeister, Lutz / Tarasov, Pavel E / al., et

2010

Abstract: Cryolithological, ground ice and fossil bioindicator (pollen, diatoms, plant macrofossils, rhizopods, insects, mammal bones) records from Bol'shoy Lyakhovsky Island permafrost sequences (73?20'N, 141?30'E) document the environmental history in the region ...

Abstract	Cryolithological, ground ice and fossil bioindicator (pollen, diatoms, plant macrofossils, rhizopods, insects, mammal bones) records from Bol'shoy Lyakhovsky Island permafrost sequences (73?20'N, 141?30'E) document the environmental history in the region for the past c. 115 kyr. Vegetation similar to modern subarctic tundra communities prevailed during the Eemian/Early Weichselian transition with a climate warmer than the present. Sparse tundra-like vegetation and harsher climate conditions were predominant during the Early Weichselian. The Middle Weichselian deposits contain peat and peaty soil horizons with bioindicators documenting climate amelioration. Although dwarf willows grew in more protected places, tundra and steppe vegetation prevailed. Climate conditions became colder and drier c. 30 kyr BP. No sediments dated between c. 28.5 and 12.05 14C kyr BP were found, which may reflect active erosion during that time. Herb and shrubby vegetation were predominant 11.6-11.3 14C kyr BP. Summer temperatures were c. 4 ?C higher than today. Typical arctic environments prevailed around 10.5 14C kyr BP. Shrub alder and dwarf birch tundra were predominant between c. 9 and 7.6 kyr BP. Reconstructed summer temperatures were at least 4 ?C higher than present. However, insect remains reflect that steppe-like habitats existed until c. 8 kyr BP. After 7.6 kyr BP, shrubs gradually disappeared and the vegetation cover became similar to that of modern tundra. Pollen and beetles indicate a severe arctic environment c. 3.7 kyr BP. However, Betula nana, absent on the island today, was still present. Together with our previous study on Bol'shoy Lyakhovsky Island covering the period between about 200 and 115 kyr, a comprehensive terrestrial palaeoenvironmental data set from this area in western Beringia is now available for the past two glacial-interglacial cycles.
Language	English
Dates of publication	2010-9999
Size	Online-Ressource
Publisher	PANGAEA - Data Publisher for Earth & Environmental Science
Publishing place	Bremen/Bremerhaven
Document type	Book ; Online
Note	This dataset is supplement to doi:10.1111/j.1502-3885.2008.00039.x
DOI	10.1594/PANGAEA.736069
Database	Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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Book ; Online: Palynology and radiocarbon dating on sediment profile PG1756 from Lake Billyakh, NE Siberia, Russia, supplementary data to: M?ller, Stefanie; Tarasov, Pavel E; Andreev, Andrei A; Diekmann, Bernhard (2009): Late Glacial to Holocene environments in the present-day coldest region of the Northern Hemisphere inferred from a pollen record of Lake Billyakh, Verkhoyansk Mts, NE Siberia. Climate of the Past, 5, 73-84

M?ller, Stefanie / Andreev, Andrei A / Diekmann, Bernhard / Tarasov, Pavel E

2008

Abstract: In this study a radiocarbon-dated pollen record from Lake Billyakh (65?17'N, 126?47'E; 340 m a.s.l.) in the Verkhoyansk Mountains was used to reconstruct vegetation and climate change since about 15 kyr BP (1 kyr=1000 cal. yr). The pollen record and ... ...

Abstract	In this study a radiocarbon-dated pollen record from Lake Billyakh (65?17'N, 126?47'E; 340 m a.s.l.) in the Verkhoyansk Mountains was used to reconstruct vegetation and climate change since about 15 kyr BP (1 kyr=1000 cal. yr). The pollen record and pollen-based biome reconstruction suggest that open cool steppe and grass and sedge tundra communities with Poaceae, Cyperaceae, Artemisia, Chenopodiaceae, Caryophyllaceae and Selaginella rupestris dominated the area from 15 to 13.5 kyr BP. On the other hand, the constant presence of Larix pollen in quantities comparable to today's values points to the constant presence of boreal deciduous conifer trees in the regional vegetation during the last glaciation. A major spread of shrub tundra communities, including birch (Betula sect. Nanae), alder (Duschekia fruticosa) and willow (Salix) species, is dated to 13.5-12.7 kyr BP, indicating a noticeable increase in precipitation toward the end of the last glaciation, particularly during the Aller?d Interstadial. Between 12.7 and 11.4 kyr BP pollen percentages of herbaceous taxa rapidly increased, whereas shrub taxa percentages decreased, suggesting strengthening of the steppe communities associated with the relatively cold and dry Younger Dryas Stadial. However, the pollen data in hand indicate that Younger Dryas climate was less severe than the climate during the earlier interval from 15 to 13.5 kyr BP. The onset of the Holocene is marked in the pollen record by the highest values of shrub and lowest values of herbaceous taxa, suggesting a return of warmer and wetter conditions after 11.4 kyr BP. Percentages of tree taxa increase gradually and reach maximum values after 7 kyr BP, reflecting the spread of boreal cold deciduous and taiga forests in the region. An interval between 7 and 2 kyr BP is noticeable for the highest percentages of Scots spine (Pinus subgen. Diploxylon), spruce (Picea) and fir (Abies) pollen, indicating mid-Holocene spread of boreal forest communities in response to climate amelioration and degradation of the permafrost layer.
Language	English
Dates of publication	2008-9999
Size	Online-Ressource
Publisher	PANGAEA - Data Publisher for Earth & Environmental Science
Publishing place	Bremen/Bremerhaven
Document type	Book ; Online
Note	This dataset is supplement to doi:10.5194/cp-5-73-2009
DOI	10.1594/PANGAEA.708170
Database	Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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Book ; Online: Radiocarbon ages and pollen record of a sediment core from Lake Lyadhej-To, supplementary data to: Andreev, Andrei A; Tarasov, Pavel E; Ilyashuk, Boris P; Ilyashuk, Elena A; Cremer, Holger; Hermichen, Wolf-Dieter; Wischer, Frank; Hubberten, Hans-Wolfgang (2005): Holocene environmental history recorded in Lake Lyadhej-To sediments, Polar Urals, Russia. Palaeogeography, Palaeoclimatology, Palaeoecology, 223(3-4), 181-203

Andreev, Andrei A / Cremer, Holger / Hermichen, Wolf-Dieter / Hubberten, Hans-Wolfgang / Ilyashuk, Boris P / Ilyashuk, Elena A / Tarasov, Pavel E / Wischer, Frank

2005

Abstract: An 1180-cm long core recovered from Lake Lyadhej-To (68?15'N, 65?45'E, 150 m a.s.l.) at the NW rim of the Polar Urals Mountains reflects the Holocene environmental history from ca. 11,000 cal. yr BP. Pollen assemblages from the diamicton (ca. 11,000-10, ... ...

Abstract	An 1180-cm long core recovered from Lake Lyadhej-To (68?15'N, 65?45'E, 150 m a.s.l.) at the NW rim of the Polar Urals Mountains reflects the Holocene environmental history from ca. 11,000 cal. yr BP. Pollen assemblages from the diamicton (ca. 11,000-10,700 cal. yr BP) are dominated by Pre-Quaternary spores and redeposited Pinaceae pollen, pointing to a high terrestrial input. Turbid and nutrient-poor conditions existed in the lake ca. 10,700-10,550 cal. yr BP. The chironomid-inferred reconstructions suggest that mean July temperature increased rapidly from 10.0 to 11.8 ?C during this period. Sparse, treeless vegetation dominated on the disturbed and denuded soils in the catchment area. A distinct dominance of planktonic diatoms ca. 10,500-8800 cal. yr BP points to the lowest lake-ice coverage, the longest growing season and the highest bioproductivity during the lake history. Birch forest with some shrub alder grew around the lake reflecting the warmest climate conditions during the Holocene. Mean July temperature was likely 11-13 ?C and annual precipitation-400-500 mm. The period ca. 8800-5500 cal. yr BP is characterized by a gradual deterioration of environmental conditions in the lake and lake catchment. The pollen- and chironomid-inferred temperatures reflect a warm period (ca. 6500-6000 cal. BP) with a mean July temperature at least 1-2 ?C higher than today. Birch forests disappeared from the lake vicinity after 6000 cal. yr BP. The vegetation in the Lyadhej-To region became similar to the modern one. Shrub (Betula nana, Salix) and herb tundra have dominated the lake catchment since ca. 5500 cal. yr BP. All proxies suggest rather harsh environmental conditions. Diatom assemblages reflect relatively short growing seasons and a longer persistence of lake-ice ca. 5500-2500 cal. yr BP. Pollen-based climate reconstructions suggest significant cooling between ca. 5500 and 3500 cal. yr BP with a mean July temperature 8-10 ?C and annual precipitation-300-400 mm. The bioproductivity in the lake remained low after 2500 cal. yr BP, but biogeochemical proxies reflect a higher terrestrial influx. Changes in the diatom content may indicate warmer water temperatures and a reduced ice cover on the lake. However, chironomid-based reconstructions reflect a period with minimal temperatures during the lake history.
Language	English
Dates of publication	2005-9999
Size	Online-Ressource
Publisher	PANGAEA - Data Publisher for Earth & Environmental Science
Publishing place	Bremen/Bremerhaven
Document type	Book ; Online
Note	This dataset is supplement to doi:10.1016/j.palaeo.2005.04.004
DOI	10.1594/PANGAEA.728454
Database	Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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Book ; Online: Pollen records and age determinations from 2 profiles at Lake Nikolay, Lena Delta, supplementary data to: Andreev, Andrei A; Tarasov, Pavel E; Schwamborn, Georg; Ilyashuk, Boris P; Ilyashuk, Elena A; Bobrov, Anatoly A; Klimanov, Vladimir A; Rachold, Volker; Hubberten, Hans-Wolfgang (2004): Holocene paleoenvironmental records from Nikolay Lake, Lena River Delta, Arctic Russia. Palaeogeography, Palaeoclimatology, Palaeoecology, 209(1-4), 197-217

Andreev, Andrei A / Bobrov, Anatoly A / Ilyashuk, Boris P / Ilyashuk, Elena A / Schwamborn, Georg / Tarasov, Pavel E

2004

Abstract: Radiocarbon-dated pollen, rhizopod, chironomid and total organic carbon (TOC) records from Nikolay Lake (73?20'N, 124?12'E) and a pollen record from a nearby peat sequence are used for a detailed environmental reconstruction of the Holocene in the Lena ... ...

Abstract	Radiocarbon-dated pollen, rhizopod, chironomid and total organic carbon (TOC) records from Nikolay Lake (73?20'N, 124?12'E) and a pollen record from a nearby peat sequence are used for a detailed environmental reconstruction of the Holocene in the Lena Delta area. Shrubby Alnus fruticosa and Betula exilis tundra existed during 10,300-4800 cal. yr BP and gradually disappeared after that time. Climate reconstructions based on the pollen and chironomid records suggest that the climate during ca. 10,300-9200 cal. yr BP was up to 2-3 ?C warmer than the present day. Pollen-based reconstructions show that the climate was relatively warm during 9200-6000 cal. yr BP and rather unstable between ca. 5800-3700 cal. yr BP. Both the qualitative interpretation of pollen data and the results of quantitative reconstruction indicate that climate and vegetation became similar to modern-day conditions after ca. 3600 cal. yr BP. The chironomid-based temperature reconstruction suggests a relatively warm period between ca. 2300 and 1400 cal. yr BP, which corresponds to the slightly warmer climate conditions reconstructed from the pollen. Modern chironomid and rhizopod assemblages were established after ca. 1400 cal. yr BP.
Language	English
Dates of publication	2004-9999
Size	Online-Ressource
Publisher	PANGAEA - Data Publisher for Earth & Environmental Science
Publishing place	Bremen/Bremerhaven
Document type	Book ; Online
Note	This dataset is supplement to doi:10.1016/j.palaeo.2004.02.010
DOI	10.1594/PANGAEA.726714
Database	Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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Article ; Online: The endoplasmic reticulum plays a key role in α-cell intracellular Ca

Acreman, Samuel / Ma, Jinfang / Denwood, Geoffrey / Gao, Rui / Tarasov, Andrei / Rorsman, Patrik / Zhang, Quan

iScience

2024 Volume 27, Issue 5, Page(s) 109665

Abstract: Glucagon is secreted by pancreatic α-cells to counteract hypoglycaemia. How glucose regulates glucagon secretion remains unclear. Here, using mouse islets, we studied the role of transmembrane and endoplasmic reticulum (ER) ... ...

Abstract	Glucagon is secreted by pancreatic α-cells to counteract hypoglycaemia. How glucose regulates glucagon secretion remains unclear. Here, using mouse islets, we studied the role of transmembrane and endoplasmic reticulum (ER) Ca
Language	English
Publishing date	2024-04-05
Publishing country	United States
Document type	Journal Article
ISSN	2589-0042
ISSN (online)	2589-0042
DOI	10.1016/j.isci.2024.109665
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Book ; Online: Pollen record and age determinations on four sites from Taymyr Peninsula, Russia, supplementary data to: Andreev, Andrei A; Tarasov, Pavel E; Siegert, Christine; Ebel, Tobias; Klimanov, Vladimir A; Melles, Martin; Bobrov, Anatoly A; Dereviagin, Alexander Yu; Lubinski, DJ; Hubberten, Hans-Wolfgang (2003): Late Pleistocene and Holocene vegetation and climate on the northern Taymyr Peninsula, Arctic Russia. Boreas, 32(3), 484-505

Andreev, Andrei A / Bobrov, Anatoly A / Dereviagin, Alexander Yu / Ebel, Tobias / Hubberten, Hans-Wolfgang / Klimanov, Vladimir A / Lubinski, DJ / Melles, Martin / Siegert, Christine / Tarasov, Pavel E

2003

Abstract: Pollen data from a Levinson-Lessing Lake sediment core (74?28'N, 98?38'E) and Cape Sabler, Taymyr Lake permafrost sequences (74?33'N, 100?32'E) reveal substantial environmental changes on the northern Taymyr Peninsula during the last c. 32 000 14C years. ...

Abstract	Pollen data from a Levinson-Lessing Lake sediment core (74?28'N, 98?38'E) and Cape Sabler, Taymyr Lake permafrost sequences (74?33'N, 100?32'E) reveal substantial environmental changes on the northern Taymyr Peninsula during the last c. 32 000 14C years. The continuous records confirm that a scarce steppe-like vegetation with Poaceae, Artemisia and Cyperaceae dominated c. 32 000-10 300 14C yr BP, while tundra-like vegetation with Oxyria, Ranunculaceae and Caryophyllaceae grew in wetter areas. The coldest interval occurred c. 18 000 yr BP. Lateglacial pollen data show several warming events followed by a climate deterioration c. 10 500 14C yr BP, which may correspond with the Younger Dryas. The Late Pleistocene/Holocene transition, c. 10 300-10 000 14C yr BP, is characterized by a change from the herb-dominated vegetation to shrubby tundra with Betula sect. Nanae and Salix. Alnus fruticosa arrived locally c. 9000-8500 14C yr BP and disappeared c. 4000-3500 14C yr BP. Communities of Betula sect. Nanae, broadly distributed at c. 10 000-3500 14C yr BP, almost disappeared when vegetation became similar to the modern herb tundra after 3500-3000 14C yr BP. Quantitative climate reconstructions show Last Glacial Maximum summer temperature about 4?C below the present and Preboreal (c. 10 000 14C yr BP) temperature 2-4?C above the present. Maximum summer temperature occurred between 10 000 and 5500 14C yr BP; later summers were similar to present or slightly warmer.
Language	English
Dates of publication	2003-9999
Size	Online-Ressource
Publisher	PANGAEA - Data Publisher for Earth & Environmental Science
Publishing place	Bremen/Bremerhaven
Document type	Book ; Online
Note	This dataset is supplement to doi:10.1111/j.1502-3885.2003.tb01230.x
DOI	10.1594/PANGAEA.726592
Database	Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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Book ; Online: Pollen record with radiocarbon datings from Faddeyevskiy Island, Laptev Sea, supplementary data to: Andreev, Andrei A; Peteet, Dorothy M; Tarasov, Pavel E; Romanenko, Fedor A; Filimonova, Ludmila V; Sulerzhitsky, Leopold D (2001): Late Pleistocene interstadial environment on Faddeyevskiy Island, East-Siberian Sea, Russia. Arctic, Antarctic, and Alpine Research, 33(1), 28-35

Andreev, Andrei A / Filimonova, Ludmila V / Peteet, Dorothy M / Romanenko, Fedor A / Sulerzhitsky, Leopold D / Tarasov, Pavel E

2001

Abstract: Pollen, plant macrofossil, loss-on-ignition and radiocarbon analyses of a 1.4-m section in thermokarst topography from Faddeyevskiy Island (75?20'N, 143?50'E, 30 m elevation) provides new information on Late Pleistocene interstadial environmental history ...

Abstract	Pollen, plant macrofossil, loss-on-ignition and radiocarbon analyses of a 1.4-m section in thermokarst topography from Faddeyevskiy Island (75?20'N, 143?50'E, 30 m elevation) provides new information on Late Pleistocene interstadial environmental history of this high Arctic region. Conventional radiocarbon dates (25,700 ? 1000, 32,780 ? 500, 35,200 ? 650 yr BP) and two AMS dates (29,950 ? 660 and 42,990 ? 1280 yr BP) indicate that the deposits accumulated during the Kargian (Boutellier) interval. Numerous mammoth (Mammuthus primigenius) remains that have been collected in vicinity of the site in this study were radio-carbon dated to 36,700-18,500 yr BP. Rare bison (Bison priscus) bones were dated to 32,200 ? 600 and 33,100 ? 320 yr BP. Poaceae, Cyperaceae, and Artemisia pollen dominate the spectra with some Ranunculaceae, Caryophyllaceae, Rosaceae, and Asteraceae. The pollen spectra reflect steppe-like (tundra-steppe) vegetation, which was dominant on the exposed shelf of the Arctic Ocean. Numerous Carex macrofossils suggest that the summer climate was at least 2?C warmer than today. The productivity of the local vegetation during the Kargian interstadial was high enough to feed the population of grazing mammals.
Language	English
Dates of publication	2001-9999
Size	Online-Ressource
Publisher	PANGAEA - Data Publisher for Earth & Environmental Science
Publishing place	Bremen/Bremerhaven
Document type	Book ; Online
DOI	10.1594/PANGAEA.726695
Database	Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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Article ; Online: Embedding Scientific Communication and Digital Capabilities in the Undergraduate Biomedical Science Curriculum.

Millar, Beverley C / Tarasov, Andrei / Ternan, Nigel / Moore, John E / Murphy, Colette

British journal of biomedical science

2023 Volume 80, Page(s) 11284

Abstract: Introduction: ...

Abstract	Introduction:
MeSH term(s)	Humans ; Students ; Curriculum ; Learning ; Communication
Language	English
Publishing date	2023-04-19
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	1152119-3
ISSN	2474-0896 ; 0967-4845
ISSN (online)	2474-0896
ISSN	0967-4845
DOI	10.3389/bjbs.2023.11284
Database	MEDical Literature Analysis and Retrieval System OnLINE

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