Citation:

j.yqres.2005.01.003

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Abstract:

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.

Project(s):

Permafrost Research (Periglacial Dynamics) @ AWI (AWI_PerDyn)

Coverage:

Median Latitude: 71.785630 * Median Longitude: 129.408783 * South-bound Latitude: 71.783366 * West-bound Longitude: 129.402562 * North-bound Latitude: 71.787895 * East-bound Longitude: 129.415005

Date/Time Start: 1998-08-05T00:00:00 * Date/Time End: 1998-08-14T00:00:00

Event(s):

Byk_98_Mkh * Latitude: 71.783366 * Longitude: 129.415005 * Date/Time Start: 1998-08-05T00:00:00 * Date/Time End: 1998-08-14T00:00:00 * Location: Lena Delta, Siberia, Russia * Campaign: (Lena-Delta1998) * Basis: AWI Arctic Land Expedition * Method/Device: Multiple investigations (MULT)

Byk_98_Mkh-6.2 * Latitude: 71.787895 * Longitude: 129.402562 * Date/Time Start: 1998-08-05T00:00:00 * Date/Time End: 1998-08-12T00:00:00 * Location: Lena Delta, Siberia, Russia * Campaign: (Lena-Delta1998) * Basis: AWI Arctic Land Expedition * Method/Device: Multiple investigations (MULT)

Comment:

#value = ca. value

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	Event label	Event		Kienast, Frank
2	Sample ID	Sample ID		Kienast, Frank
3	Height above sea level	Height	m a.s.l.	Kienast, Frank
4	Sediment type	Sediment		Kienast, Frank
5	Stratigraphy	Stratigraphy		Kienast, Frank
6	Age model	Age model	ka	Kienast, Frank	estimated age
7	Age, dated	Age dated	ka	Kienast, Frank
8	Age, dated, error to older	Age e +	ka +	Kienast, Frank
9	Age, dated, error to younger	Age e -	ka -	Kienast, Frank
10	Agrostis sp.	Agrostis sp.	#	Kienast, Frank
11	Allium schoenoprasum	A. schoenoprasum	#	Kienast, Frank
12	Alopecurus sp.	Alopecurus sp.	#	Kienast, Frank
13	Alyssum obovatum	A. obovatum	#	Kienast, Frank
14	Androsace septentrionalis	A. septentrionalis	#	Kienast, Frank
15	Arabis petrea	A. petrea	#	Kienast, Frank
16	Eremogone capillaris	E. capillaris	#	Kienast, Frank	originally identified as Arenaria tschuktschorum
17	Artemisia sp.	Artemisia sp.	#	Kienast, Frank
18	Batrachium sp.	Batrachium sp.	#	Kienast, Frank
19	Betula exilis	Bet.e	#	Kienast, Frank
20	Betula sect. Albae	Bet.Se.A	#	Kienast, Frank
21	Calamagrostis indeterminata	Calamagrostis indet.	#	Kienast, Frank
22	Callitriche hermaphroditica	C. hermaphroditica	#	Kienast, Frank
23	Caltha palustris	Cat.p	#	Kienast, Frank
24	Cardamine bellidifolia	C. bellidifolia	#	Kienast, Frank
25	Carex aquatilis	C. aquatilis	#	Kienast, Frank
26	Carex cf. argunensis	C. cf. argunensis	#	Kienast, Frank
27	Carex arctisibirica	C. arctisibirica	#	Kienast, Frank
28	Carex cespitosa	C. cespitosa	#	Kienast, Frank
29	Carex duriuscula	C. duriuscula	#	Kienast, Frank
30	Carex lugens	C. lugens	#	Kienast, Frank
31	Carex cf. nardina	C. cf. nardina	#	Kienast, Frank
32	Carex sect. Phacocystis	Carex sect. Phacocystis	#	Kienast, Frank
33	Carex cf. spaniocarpa	C. cf. spaniocarpa	#	Kienast, Frank
34	Carex cf. stans	C. cf. stans	#	Kienast, Frank
35	Carex sect. Temnemis	Carex sect. Temnemis	#	Kienast, Frank
36	Carex sp.	Carex sp.	#	Kienast, Frank
37	Cassiope tetragona	C. tetragona	#	Kienast, Frank
38	Cerastium beeringianum	C. beeringianum	#	Kienast, Frank
39	Cerastium jenissejense	C. jenissejense	#	Kienast, Frank
40	Cerastium maximum	C. maximum	#	Kienast, Frank
41	Cerastium regelii	C. regelii	#	Kienast, Frank
42	Cerastium sp.	Cerastium sp.	#	Kienast, Frank
43	Chara sp.	Chara sp.	#	Kienast, Frank
44	Chenopodium sp.	Chenopodium sp.	#	Kienast, Frank
45	Chenopodium glaucum	C. glaucum	#	Kienast, Frank
46	Cochlearia arctica	C. arctica	#	Kienast, Frank
47	Deschampsia cespitosa agg.	D. cespitosa agg.	#	Kienast, Frank
48	Descurainia sophioides	D. sophioides	#	Kienast, Frank
49	Draba sp.	Draba sp.	#	Kienast, Frank
50	Dryas punctata	D. punctata	#	Kienast, Frank
51	Eriophorum angustifolium	E. angustifolium	#	Kienast, Frank
52	Eriophorum russeolum	E. russeolum	#	Kienast, Frank
53	Eriophorum scheuchzeri	Erio.s	#	Kienast, Frank
54	Eriophorum vaginatum	E. vaginatum	#	Kienast, Frank
55	Festuca sp.	Festuca sp.	#	Kienast, Frank
56	Gastrolychnis apetala	G. apetala	#	Kienast, Frank
57	Glaux maritima	Gla.m	#	Kienast, Frank
58	Hippuris vulgaris	Hip.v	#	Kienast, Frank
59	Hordeum brevisubulatum	H. brevisubulatum	#	Kienast, Frank
60	Juncus biglumis	J. biglumis	#	Kienast, Frank	originally identified as J. castanaeus
61	Kobresia myosuroides	K. myosuroides	#	Kienast, Frank
62	Kobresia simpliciuscula	K. simpliciuscula	#	Kienast, Frank
63	Kobresia sp.	Kobresia sp.	#	Kienast, Frank
64	Linum perenne	Lin.p	#	Kienast, Frank
65	Luzula confusa	L. confusa	#	Kienast, Frank
66	Lychnis sibirica	L. sibirica	#	Kienast, Frank
67	Minuartia arctica	M. arctica	#	Kienast, Frank
68	Minuartia rubella	M. rubella	#	Kienast, Frank
69	Minuartia verna	Min.v	#	Kienast, Frank
70	Myosotis alpestris	M. alpestris	#	Kienast, Frank
71	Oxycoccus microcarpus	O. microcarpus	#	Kienast, Frank
72	Oxyria digyna	Oxy.d	#	Kienast, Frank
73	Papaver sect. Scapiflora	Papaver sect. Scapiflora	#	Kienast, Frank
74	Poa indeterminata	Poa indet.	#	Kienast, Frank
75	Poaceae sp.	Poaceae sp.	#	Kienast, Frank
76	Polygonum viviparum	Pol.v	#	Kienast, Frank
77	Potamogeton pusillus	Pot.p	#	Kienast, Frank
78	Potamogeton sp.	Potamogeton sp.	#	Kienast, Frank
79	Potamogeton vaginatus	P. vaginatus	#	Kienast, Frank
80	Potentilla arenosa	P. arenosa	#	Kienast, Frank
81	Potentilla cf. nivea	P. cf. nivea	#	Kienast, Frank
82	Potentilla hyparctica	P. hyparctica	#	Kienast, Frank
83	Potentilla cf. stipularis	P. cf. stipularis	#	Kienast, Frank
84	Potentilla longifolia	P. longifolia	#	Kienast, Frank
85	Potentilla sect. Hypargyrium	Potentilla sect. Hypargyrium	#	Kienast, Frank
86	Puccinellia tenuiflora	P. tenuiflora	#	Kienast, Frank
87	Ranunculus hyperboreus	R. hyperboreus	#	Kienast, Frank
88	Ranunculus nivalis	R. nivalis	#	Kienast, Frank
89	Ranunculus pedatifidus subsp. affinis	R. pedatifidus subsp. affinis	#	Kienast, Frank	urspr. bestimmt als R. reptans
90	Ranunculus sp.	Ranunculus sp.	#	Kienast, Frank
91	cf. Lesquerella arctica	cf. L. arctica	#	Kienast, Frank
92	Rumex graminifolius-type	R. graminifolius-T	#	Kienast, Frank	R. subgen. Acetosella
93	Rumex maritimus	R. maritimus	#	Kienast, Frank
94	Sagina intermedia	S. intermedia	#	Kienast, Frank
95	Salix sp.	Salix sp.	#	Kienast, Frank
96	Saxifraga cernua	S. cernua	#	Kienast, Frank
97	Saxifraga cespitosa	S. cespitosa	#	Kienast, Frank
98	Saxifraga foliolosa	S. foliolosa	#	Kienast, Frank
99	Saxifraga hieracifolia	S. hieracifolia	#	Kienast, Frank
100	Saxifraga hirculus	Sax.h	#	Kienast, Frank
101	Saxifraga nivalis	Sax.n	#	Kienast, Frank
102	Saxifraga spinulosa	S. spinulosa	#	Kienast, Frank
103	Saxifraga tenuis	S. tenuis	#	Kienast, Frank
104	Tephroseris palustris	T. palustris	#	Kienast, Frank
105	Silene repens	S. repens	#	Kienast, Frank
106	Silene sp.	Silene sp.	#	Kienast, Frank
107	Sorbaria sorbifolia	S. sorbifolia	#	Kienast, Frank
108	Stellaria ciliatisepala	S. ciliatisepala	#	Kienast, Frank
109	Stellaria crassifolia	S. crassifolia	#	Kienast, Frank
110	Stellaria edwardsii	S. edwardsii	#	Kienast, Frank
111	Stellaria longipes	S. longipes	#	Kienast, Frank	= S. peduncularis
112	Stellaria sp.	Stellaria sp.	#	Kienast, Frank
113	Thesium sp.	Thesium sp.	#	Kienast, Frank
114	Thalictrum alpinum	Tha.a	#	Kienast, Frank
115	Vaccinium uliginosum	Vac.u	#	Kienast, Frank
116	Number of taxa	Taxa	#	Kienast, Frank	detected

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

2039 data points

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