Plant macrofossil records from permafrost deposits of the Bykovsky Peninsula (NE Siberia)
Fuente:
PANGAEA
Guardado en:
| Autores principales: | , , , |
|---|---|
| Formato: | Dataset Open Access |
| Lenguaje: | en |
| Publicado: |
PANGAEA
2017
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1867170077637345280 |
|---|---|
| author | Kienast, Frank Schirrmeister, Lutz Siegert, Christine Tarasov, Pavel E |
| author_facet | Kienast, Frank Schirrmeister, Lutz Siegert, Christine Tarasov, Pavel E |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Plant macrofossils from the Mamontovy Khayata permafrost sequence on the Bykovsky Peninsula reflect climate and plant biodiversity in west Beringia during the last cold stage. 14C dates suggest sediment accumulation between about 60,000 and 7500 14C yr B.P. The plant remains prove that during the last cold-stage arctic species coexisted with aquatic, littoral, meadow and steppe taxa. The reconstructed vegetation composition is similar to modern vegetation mosaics in central and northeast Yakutian relict steppe areas. Thus, productive meadow and steppe communities played an important role in the Siberian Arctic vegetation during the late Pleistocene and could have served as food resource for large populations of herbivores. The floristic composition reflects an extremely continental, arid climate with winters colder and summers distinctly warmer than at present. Holocene macrofossil assemblages indicate a successive paludification possibly connected with marine transgression, increased oceanic influence and atmospheric humidity. Although some steppe taxa were still present in the early Holocene, they disappeared completely before ~2900 14C yr B.P. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_880228 |
| institution | PANGAEA |
| language | en |
| publishDate | 2017 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Plant macrofossil records from permafrost deposits of the Bykovsky Peninsula (NE Siberia) Kienast, Frank Schirrmeister, Lutz Siegert, Christine Tarasov, Pavel E Age, dated; Age, dated, error to older; Age, dated, error to younger; Age model; Agrostis sp.; Allium schoenoprasum; Alopecurus sp.; Alyssum obovatum; Androsace septentrionalis; Arabis petrea; Artemisia sp.; AWI_PerDyn; AWI Arctic Land Expedition; Batrachium sp.; Betula exilis; Betula sect. Albae; Byk_98_Mkh; Byk_98_Mkh-6.2; Calamagrostis indeterminata; Callitriche hermaphroditica; Caltha palustris; Cardamine bellidifolia; Carex aquatilis; Carex arctisibirica; Carex cespitosa; Carex cf. argunensis; Carex cf. nardina; Carex cf. spaniocarpa; Carex cf. stans; Carex duriuscula; Carex lugens; Carex sect. Phacocystis; Carex sect. Temnemis; Carex sp.; Cassiope tetragona; Cerastium beeringianum; Cerastium jenissejense; Cerastium maximum; Cerastium regelii; Cerastium sp.; cf. Lesquerella arctica; Chara sp.; Chenopodium glaucum; Chenopodium sp.; Cochlearia arctica; Deschampsia cespitosa agg.; Descurainia sophioides; Draba sp.; Dryas punctata; Eremogone capillaris; Eriophorum angustifolium; Eriophorum russeolum; Eriophorum scheuchzeri; Eriophorum vaginatum; Event label; Festuca sp.; Gastrolychnis apetala; Glaux maritima; Height above sea level; Hippuris vulgaris; Hordeum brevisubulatum; Juncus biglumis; Kobresia myosuroides; Kobresia simpliciuscula; Kobresia sp.; Lena Delta, Siberia, Russia; Lena-Delta1998; Linum perenne; Luzula confusa; Lychnis sibirica; Minuartia arctica; Minuartia rubella; Minuartia verna; MULT; Multiple investigations; Myosotis alpestris; Number of taxa; Oxycoccus microcarpus; Oxyria digyna; Papaver sect. Scapiflora; Permafrost Research (Periglacial Dynamics) @ AWI; Poaceae sp.; Poa indeterminata; Polygonum viviparum; Potamogeton pusillus; Potamogeton sp.; Potamogeton vaginatus; Potentilla arenosa; Potentilla cf. nivea; Potentilla cf. stipularis; Potentilla hyparctica; Potentilla longifolia; Potentilla sect. Hypargyrium; Puccinellia tenuiflora; Ranunculus hyperboreus; Ranunculus nivalis; Ranunculus pedatifidus subsp. affinis; Ranunculus sp.; RU-Land_1998_Lena; Rumex graminifolius-type; Rumex maritimus; Sagina intermedia; Salix sp.; Sample ID; Saxifraga cernua; Saxifraga cespitosa; Saxifraga foliolosa; Saxifraga hieracifolia; Saxifraga hirculus; Saxifraga nivalis; Saxifraga spinulosa; Saxifraga tenuis; Sediment type; Silene repens; Silene sp.; Sorbaria sorbifolia; Stellaria ciliatisepala; Stellaria crassifolia; Stellaria edwardsii; Stellaria longipes; Stellaria sp.; Stratigraphy; Tephroseris palustris; Thalictrum alpinum; Thesium sp.; Vaccinium uliginosum Plant macrofossils from the Mamontovy Khayata permafrost sequence on the Bykovsky Peninsula reflect climate and plant biodiversity in west Beringia during the last cold stage. 14C dates suggest sediment accumulation between about 60,000 and 7500 14C yr B.P. The plant remains prove that during the last cold-stage arctic species coexisted with aquatic, littoral, meadow and steppe taxa. The reconstructed vegetation composition is similar to modern vegetation mosaics in central and northeast Yakutian relict steppe areas. Thus, productive meadow and steppe communities played an important role in the Siberian Arctic vegetation during the late Pleistocene and could have served as food resource for large populations of herbivores. The floristic composition reflects an extremely continental, arid climate with winters colder and summers distinctly warmer than at present. Holocene macrofossil assemblages indicate a successive paludification possibly connected with marine transgression, increased oceanic influence and atmospheric humidity. Although some steppe taxa were still present in the early Holocene, they disappeared completely before ~2900 14C yr B.P. |
| title | Plant macrofossil records from permafrost deposits of the Bykovsky Peninsula (NE Siberia) |
| topic | Age, dated; Age, dated, error to older; Age, dated, error to younger; Age model; Agrostis sp.; Allium schoenoprasum; Alopecurus sp.; Alyssum obovatum; Androsace septentrionalis; Arabis petrea; Artemisia sp.; AWI_PerDyn; AWI Arctic Land Expedition; Batrachium sp.; Betula exilis; Betula sect. Albae; Byk_98_Mkh; Byk_98_Mkh-6.2; Calamagrostis indeterminata; Callitriche hermaphroditica; Caltha palustris; Cardamine bellidifolia; Carex aquatilis; Carex arctisibirica; Carex cespitosa; Carex cf. argunensis; Carex cf. nardina; Carex cf. spaniocarpa; Carex cf. stans; Carex duriuscula; Carex lugens; Carex sect. Phacocystis; Carex sect. Temnemis; Carex sp.; Cassiope tetragona; Cerastium beeringianum; Cerastium jenissejense; Cerastium maximum; Cerastium regelii; Cerastium sp.; cf. Lesquerella arctica; Chara sp.; Chenopodium glaucum; Chenopodium sp.; Cochlearia arctica; Deschampsia cespitosa agg.; Descurainia sophioides; Draba sp.; Dryas punctata; Eremogone capillaris; Eriophorum angustifolium; Eriophorum russeolum; Eriophorum scheuchzeri; Eriophorum vaginatum; Event label; Festuca sp.; Gastrolychnis apetala; Glaux maritima; Height above sea level; Hippuris vulgaris; Hordeum brevisubulatum; Juncus biglumis; Kobresia myosuroides; Kobresia simpliciuscula; Kobresia sp.; Lena Delta, Siberia, Russia; Lena-Delta1998; Linum perenne; Luzula confusa; Lychnis sibirica; Minuartia arctica; Minuartia rubella; Minuartia verna; MULT; Multiple investigations; Myosotis alpestris; Number of taxa; Oxycoccus microcarpus; Oxyria digyna; Papaver sect. Scapiflora; Permafrost Research (Periglacial Dynamics) @ AWI; Poaceae sp.; Poa indeterminata; Polygonum viviparum; Potamogeton pusillus; Potamogeton sp.; Potamogeton vaginatus; Potentilla arenosa; Potentilla cf. nivea; Potentilla cf. stipularis; Potentilla hyparctica; Potentilla longifolia; Potentilla sect. Hypargyrium; Puccinellia tenuiflora; Ranunculus hyperboreus; Ranunculus nivalis; Ranunculus pedatifidus subsp. affinis; Ranunculus sp.; RU-Land_1998_Lena; Rumex graminifolius-type; Rumex maritimus; Sagina intermedia; Salix sp.; Sample ID; Saxifraga cernua; Saxifraga cespitosa; Saxifraga foliolosa; Saxifraga hieracifolia; Saxifraga hirculus; Saxifraga nivalis; Saxifraga spinulosa; Saxifraga tenuis; Sediment type; Silene repens; Silene sp.; Sorbaria sorbifolia; Stellaria ciliatisepala; Stellaria crassifolia; Stellaria edwardsii; Stellaria longipes; Stellaria sp.; Stratigraphy; Tephroseris palustris; Thalictrum alpinum; Thesium sp.; Vaccinium uliginosum |
| url | https://doi.org/10.1594/PANGAEA.880228 |