Vegetation and climate history of the Lake Prespa region since the Lateglacial

2013 ◽  
Vol 293 ◽  
pp. 157-169 ◽  
Author(s):  
Konstantinos Panagiotopoulos ◽  
Anne Aufgebauer ◽  
Frank Schäbitz ◽  
Bernd Wagner
Keyword(s):  
Climate History ◽  
Lake Prespa ◽  
History Of ◽  
Vegetation And Climate

Holocene Vegetation and Climate History of the Northern Bighorn Basin, Southern Montana

2002 ◽  
Vol 58 (2) ◽  
pp. 171-181 ◽  
Author(s):  
Mark E. Lyford ◽  
Julio L. Betancourt ◽  
Stephen T. Jackson
Keyword(s):  
Climate Change ◽  
Great Basin ◽  
Rocky Mountain ◽  
Bighorn Basin ◽  
Downward Movement ◽  
Climate History ◽  
Juniperus Osteosperma ◽  
Rocky Mountain Region ◽  
History Of ◽  
Vegetation And Climate

AbstractRecords of Holocene vegetation and climate change at low elevations (<2000 m) are rare in the central Rocky Mountain region. We developed a record of Holocene vegetation and climate change from 55 14C-dated woodrat middens at two low-elevation sites (1275 to 1590 m), currently vegetated by Juniperus osteosperma woodlands, in the northern Bighorn Basin. Macrofossil and pollen analyses show that the early Holocene was cooler than today, with warming and drying in the middle Holocene. During the Holocene, boreal (Juniperus communis, J. horizontalis) and montane species (J. scopulorum) were replaced by a Great Basin species (J. osteosperma). J. osteosperma colonized the east side of the Pryor Mountains 4700 14C yr B.P. Downward movement of lower treeline indicates wetter conditions between 4400 and 2700 14C yr B.P. Increased aridity after 2700 14C yr B.P. initiated expansion of J. osteosperma from the east to west side of the Pryor Mountains.

A 12,000-Year History of Vegetation and Climate for Cape Cod, Massachusetts

1985 ◽  
Vol 23 (3) ◽  
pp. 301-312 ◽  
Author(s):  
Marjorie Green Winkler
Keyword(s):  
Pinus Banksiana ◽  
Vegetation History ◽  
Sediment Cores ◽  
Pinus Strobus ◽  
Cape Cod ◽  
Pine Barrens ◽  
Conifer Forest ◽  
Climate History ◽  
History Of ◽  
Vegetation And Climate

Pollen and charcoal analysis of radiocarbon-dated sediment cores from Duck Pond in the Cape Cod National Seashore provide a continuous 12,000-yr vegetation and climate history of outer Cape Cod. A Picea-Hudsonia parkland and then a Picea-Pinus banksiana-Alnus crispa boreal forest association grew near the site between 12,000 and 10,000 yr B.P. This vegetation was replaced by a northern conifer forest of Pinus strobus-P. banksiana, and, subsequently, by a more mesophytic forest (Pinus strobus, Tsuga, Quercus, Fagus, Acer, Ulmus, Fraxinus, Ostrya) as the climate became warmer and wetter by 9500 yr B.P. By 9000 yr B.P. a Pinus rigida-Quercus association dominated the landscape. High charcoal frequencies from this and subsequent levels suggest that the pine barrens association developed during a warmer and drier climate that lasted from 9000 to about 5000 yr B.P. Increased percentages of Pinus strobus pollen indicate a return to moister and cooler conditions by about 3500 yr B.P. A doubled sedimentation rate, increased charcoal, and increased herb pollen suggest land disturbance near the pond before European settlement. These results suggest a rapid warming in the northeast in the early Holocene and support a hypothesis of a rapid sea level rise at that time. Comparison of the pollen results from Duck Pond with those from Rogers Lake, Connecticut, illustrates the importance of edaphic factors in determining the disturbance frequency and vegetation history of an area.

scholarly journals Long-term Arctic peatland dynamics, vegetation and climate history of the Pur-Taz region, Western Siberia

Boreas ◽  
2008 ◽  
Vol 27 (2) ◽  
pp. 115-126 ◽  
Author(s):  
DOROTHY PETEET ◽  
ANDREI ANDREEV ◽  
WILLIAM BARDEEN ◽  
FRANCESCA MISTRETTA
Keyword(s):  
Western Siberia ◽  
Climate History ◽  
History Of ◽  
Vegetation And Climate

Vegetation and Climate History of the Harenna Forest (Bale Mountains, Ethiopia) in the Holocene

2018 ◽  
Vol 45 (6) ◽  
pp. 537-548
Author(s):  
E. A. Kuzmicheva ◽  
B. F. Khasanov ◽  
O. A. Krylovich ◽  
H. Jebessa Debella ◽  
W. Girmay Worku ◽  
...  
Keyword(s):  
Climate History ◽  
The Holocene ◽  
History Of ◽  
Vegetation And Climate

Olympia Interstadial: vegetation, landscape history, and paleoclimatic implications of a mid-Wisconsinan (MIS3) nonglacial sequence from southwest British Columbia, Canada

2016 ◽  
Vol 53 (3) ◽  
pp. 304-320 ◽  
Author(s):  
Richard J. Hebda ◽  
Olav B. Lian ◽  
Stephen R. Hicock
Keyword(s):  
British Columbia ◽  
Tsuga Heterophylla ◽  
Silty Sand ◽  
Western North America ◽  
Climate History ◽  
Southern Limit ◽  
Vegetation Landscape ◽  
History Of ◽  
Cordilleran Ice Sheet ◽  
Vegetation And Climate

Lithostratigraphic, 14C, and palynologic analyses of peat and silty peat at three nearby sites reveal a 25 000 year vegetation and climate history of the Olympia Interstade for the Fraser Lowland, British Columbia, 300 km within the southern limit of the Cordilleran Ice Sheet. At Lynn Valley, Polypodiaceae fern spores and nonarboreal pollen dominate >47.8 14C ka BP, reflecting unstable and cold landscapes. A Pinus–Poaceae zone follows, representing pine parkland and cool dry climate. Fluctuating values of Picea and Tsuga mertensiana pollen at Lynn and Seymour valleys and Port Moody characterize most of the Olympia Interstade during local peat deposition in Cyperaceae and Myrica wetlands until about 26.7 14C ka BP under a cool and moist climate. A brief Pinus – Tsuga heterophylla zone at Lynn Valley 44–39 14C ka BP suggests a climatic optimum. A Poaceae–Artemisia assemblage and deposition of silty sand after 26.7 14C ka BP reflect cooling and drying after which a unique Lycopodium assemblage at Lynn Valley suggests cold arid climate and Fraser Glaciation onset. These sequences have no progression to vegetation typical of warm, interglacial, Holocene-like climates, indicating an interstadial not an interglacial interval. Correlation with vegetation changes elsewhere in western North America suggests that the Olympia Interstade started about ∼52 14C ka BP (∼57 cal ka BP) and ended about 26 14C ka BP (30 cal ka BP).

Sign in / Sign up

Export Citation Format

Share Document