Beringian Paleoenvironments
20-23 September, 1997
<><><><> SESSIONS and PROGRAM <><><><>
SATURDAY, 20 SEPTEMBER
13:30 Welcome statements and goals Brigham-Grette and Elias
Session 1) EARLY BERINGIA: its nature and origins
Chair: Julie Brigham-Grette
13:45 The Neo-Tectonic Setting Of Beringia:
David B. Stone Kazuya Fujita and Kevin Mackey
14:05 The History Of Late Tertiary Floras And Vegetation Change In Beringia Based On The
Fossil Records Of Northwestern Canada, Alaska, And Northeastern Asia
Thomas Ager and James White
14:25 The Influence Of The Bering Strait On The North Pacific-Arctic Ecosystem
During The Neogene Yuri B. Gladenkov
14:45 Geologic Controls On The Flow Of Water Into And Out Of the Bering Sea--Thoughts
About Past And Future Climatic Effects On Beringia
David W. Scholl and Andrew J. Stevenson
15:05 Open discussion and synthesis
15:30-15:50 COFFEE BREAK
Session 2) Plio/Pleistocene Environments & the Age of Warm/Cold Events
Chair: Julie Brigham-Grette
15:50 New Paleontological Information On The First Opening Of Bering Strait:
Louie Marincovich and Andrey Yu. Gladenkov
16:10 Mid Pliocene To Mid Pleistocene Record Of Glaciations In The Tintina Trench, West
Central Yukon Territory A. Duk-Rodkin and R. Barendregt
16:30 The Age of the Fishcreekian Transgression and the last warm Pliocene Interglacial
J. Brigham Grette
16:50 Origin and Environment Of The 2 My Old Dawson Cut Interglaciation Forest Bed
Troy Péwé
17:10 Discussant comments: Charles Repenning, Bob Nelson, Pavel Nikolskiy, Duane Froese,
Boris Yurtsev
17:30 Open discussion and synthesis
18:00 Break before Dinner at 18:30. After dinner, free time for spontaneous evening discussions.
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SUNDAY, 21 SEPTEMBER
8:00 Morning Announcements
Session 3) Long term glacial/paleoclimate record in Beringia :
Why do we have out-of-phase glaciations in Beringia? What is the nature of Arctic
interglaciations? and Arctic Glacials
Chair: Tom Hamilton
8:15 Geomorphological Correlation Of Late Pleistocene Ice Complexes Of Western And Eastern
Beringia Olga Yu. Glushkova
8:35 Diatom Stratigraphy And High-Resolution Paleogeography Of Baldwin Peninsula Deposits,
Seward Peninsula, Alaska:
Vladimir S. Pushkar, Steven R. Roof, Marina V. Cherepanova, David M. Hopkins, Victor F.
Ivanov, and Julie Brigham-Grette
8: 55 Glacial And Interglacial Records From Glacial Lake Noatak, Northwest Alaska
Thomas Hamilton
9:15 A Terrestrial Record Of Climatic Fluctuations During The Quaternary:
Magneto- And Bio-Lithostratigraphic Evidence From Banks Island, Western
Canadian Arctic Archipelago
Rene W. Barendregt, Jean-Serge Vincent, Edward Irving, And Judith Baker
9:35 Preliminary Report On The Age, Extent, And Paleoclimatic Significance Of
Pleistocene Glaciations, Coastal Ahklun Mountains, SW Alaska
Darrell Kaufman, William Manley, Shari Preece,
Louie Marincovich, Steve Forman, and Paul Layer
9:55 - 10:20 COFFEE BREAK
10:20 Late Quaternary Glacial History Of The Cold Bay Region Of The Alaska Peninsula
Tina M. Dochat
10:40 Upper Cenozoic Sites Of The Laptev Sea Coast - New Data And Implications
For Transberingian Correlation. Pavel Nikolskiy and Alexander Basilyan
11:00 Discussant comments: Charlie Schweger, David Hopkins, A. Duk-Rodkin, Olga
Glushkova, Scott Smith
11:15 Open Discussion and Morning synthesis
LUNCH 12:00-13:15
Session 4) What can we extract from the Loess Record? What can we extract from
Yedoma?
Chair: Jim Beget
13:15 The Loess Treasurehouse: Long Term Records Of Paleoclimates And Paleoenvironments,
Glacial And Periglacial History, Paleoecology And Evolution, Native American Settlement,
Paleopedology, And Volcanism Across Beringia
James E. Begét
13:35 Yedoma as a Storage of Paleoenvironmental Record in Beringia: Andrei Sher
13:55 The Last Interglacial-Glacial Cycle In Late Quaternary Loess, Central Interior Alaska
Daniel R. Muhs, Thomas Ager, Thomas W. Stafford, Jr., Milan Pavich,
James E. Begét, and John P. McGeehin
14:10 Eva Interglacial Forest Bed, unglaciated east-central Alaska: Global Warming 125,000
years ago: Troy Péwé, Glenn Berger, John Westgate
Peter Brown, And Steven Leavitt
14:30 Open Discussion:
15:00-17:30 COFFEE BREAK AND POSTER SESSION
POSTERS TITLES (alphabetical order by first author)
An 8100 Year Record Of Vegetation Changes From A Peat Site Near Fairbanks,
Alaska. Andrei A. Andreev, And Dorothy M. Peteet
An Upper Pleistocene Environment On Faddeyevskiy Island, Laptev Sea, Russia.
Andrei A. Andreev, Fedor A. Romanenko, Leopold D. Sulerzhitsky, Dorothy M. Peteet, And
Pavel E. Tarasov
Late Quaternary Paleoclimatic Reconstructions For Interior Alaska Based On
Paleolake-Level Data And Hydrologic Models
Valerie Barber
Upland White Spruce Growth In Bonanza Creek Lter In Central Alaska Under
Unprecedented Drought Stress: Evidence From Stable Isotopes And Wood Density.
Valerie A. Barber And Glenn P. Juday
Climatic Implications Of The Bivalve Fortipecten Hallae (Dall) In The
Alaskan Pliocene
Konstantin B. Barinov and Sergei I. Kiyashko
The Bivalve Chlamys Colvillensis (Macneil) And Correlation Of Pliocene
Marine Deposits Of Northeastern Kamchatka And Alaska.
Konstantin B. Barinov, Valentina N. Sinelnikova, And Louie Marincovich, Jr.
Last Interglaciation Age Of The Eva Forest Bed, Central Alaska,
From Thermoluminescence Dating Of Bracketing Loess
Glenn W. Berger And Troy L. Péwé
Rapid (<1000 Yr) Deglacial Vegetation Changes In Central Alaska
Nancy Bigelow And Mary Edwards
Wisconsin Glacial Chronology Of The Western Ahklun Mountains, SW Alaska:
36Cl Ages From Wattamuse Valley
Jason P. Briner, Darrell S. Kaufman, And William F. Manley
Molecular Phylogeography Of Amphiberingian Mammals
Chris Conroy, Joe Cook, John Demboski, And Karen Stone
A Reconstruction Of Pliocene-Pleistocene Tectonics And Climate, Lower
Klondike Terraces, Dawson Area, Yukon
Duane G. Froese, R.W. Barendregt, A. Duk-Rodkin,
R. Enkin, F.J. Hein, D.G. Smith
The Extent And Chronology Of Glaciation In The Anadyr Region Of Chukotka,
Western Beringia
Lyn Gualtieri
Coastal Paleogeography And Sea Level Change In Southern Beringia:
Post-Lgm Records From The Lower Alaska Peninsula.
James W. Jordan
Radiocarbon Dating The Early Holocene Occupation Of Western Beringia:
Revisions From The Upper Kolyma Region
Maureen L. King
Biogeography Of Seldovian Plant Taxa, Past And Present, Along The Pacific Rim
Estella Leopold, Alan Yen, Cindy Updegrave, Katie Maier,
Marie McMasters, And Tracey Fuentes
Disease And Mammalian Extinctions In The Late Quaternary
Ross D. E. Macphee And Preston A. Marx
Prehistoric Chert Quarries In The Western Brooks Range, Eastern Beringia
Natalia Malyk-Selivanova, Gail M. Ashley, Michael D. Glascock And
Robert Gal.
Radiocarbon And Relative-Age Evidence For Restricted Late Wisconsin
Glaciation, Southern And Western Ahklun Mountains, Southeastern Beringia
William F. Manley And Darrell S. Kaufman
Does Ph Affect Pollen Preservation In The Late Pleistocene Beringian
Sediments?
Lucina Mcweeney
Using Indicator Pollen Taxa To Interpret The Late Quaternary Environmental
History Of The Western North Slope, Alaska
W. Wyatt Oswald, Linda B. Brubaker, And Patricia M. Anderson
Soil Morphological Clues To Climate Change In The Beringia
Chien-Lu Ping and John Kimble
A Comparison Of Late Quaternary Vegetation Change At The Eastern
And Western Limits Of Beringia.
Michael F.J. Pisaric, Julian M. Szeicz And Glen M. Macdonald
Environmental Changes At Treeline In Central Alaska During The
Late-Holocene: Implications Of Neoglacial Cooling
Melanie Rohr, Mary E. Edwards, Bruce P. Finney
Late Holocene Treeline Dynamics In Northwestern Canada
Julian M. Szeicz And Glen M. Macdonald
18:30 DINNER
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MONDAY, 22 SEPTEMBER
Session 5) The "Productivity ParadoxÓ revisited and What is steppe tundra?
Chair: Scott Elias
8:00 The Pleistocene "Tundra-Steppe" and the productivity paradox: Boris Yurtsev
8:20 Nature of ancient and modern steppe tundra: Daniil Berman
8:40 Regional extent of steppe tundra in Alaska: Scott Elias
9:00 A Moment In Time: The Landscape Of The Full-Glacial Bering Land Bridge At
18,000 Years B.P. Victoria G. Goetcheus and David M. Hopkins
9:20 Impact of Active Loess Deposition on Native Forage Productivity: Case Studies from
Yukon and Alaska: Scott Smith
9:40 Origin And Causes Of The Mammoth Steppe: A Story Of Cloud Cover, Woolly Mammals,
And The Little Buckle R. Dale Guthrie
10:00 COFFEE BREAK
10:25 Microfossil Analysis Of Drained Thaw Lake Basins In Barrow, Alaska
Identifying Tundra Vegetation Patterns Wendy R. Eisner and Kim M. Peterson
10:45 Discussant Comments: Andrei Sher, Charlie Schweger, Bob Nelson, Russell Graham,
Mary
Edwards, David Yesner, Pat Anderson, Linda Brubaker, Sergey Vartanyan
11:30: Discussion and synthesis: future directions
12:00-1:00 LUNCH
Session 6) What are the implications of a late persistence of an intercontinental land bridge
for human dispersals? For faunal dispersals: For floral dispersals? And Beringia as a
center for development in its own right.
Chair: David Yesner
13:00 Human Colonization of Northern Asia and Beringia: Hard Environments,
Limiting Factors, and Range Expansion in the Late Pleistocene. Ted Goebel
13:20 Terminal Pleistocene And Early Holocene Occupation In North East Asia And
The Zhokhov Assemblage Vladimir Pitul'ko
13:40 The Early Holocene Hypsithermal And Humans: Adverse Conditions For The
Denali Complex Of Eastern Beringia. Owen K. Mason
14:00 Beringian paradoxes: investigating late Pleistocene human biogeographical dispersals
between Eurasia and North America Jacques Cinq-Mars and Nicolas Rolland
14:20 Beringia: Land, Sea, And The Evolution Of Cryoxeric Environments And Faunas
Andrei Sher
14:40 Discussant Comments: Maureen King, E. James Dixon; Charlie Schweger, Boris Yurtsev
15:00 Open Discussion and Synthesis
15:30-16:00 COFFEE BREAK
SESSION 7) What are the merits of interior vs coastal routes as dispersal path of earliest
humans into North America?
Chair: Carol Mandryk
16:00 Human Dispersals into interior Alaska: Antecedent conditions, mode of colonization, and
adaptions David R. Yesner
16:20 Late Pleistocene/Early Holocene Human Adaptions and the Northwest corridor:
E. James Dixon
16:40 Late Quaternary Paleoenvironments Of Northwestern North America:
Implications For Inland Versus Coastal Migration Routes Carole Mandryk
17:00 The Sea-Level History And Drowned Landscapes Of The Queen Charlotte
Islands/Hecate Strait Of British Columbia, Canada. Heiner Josenhans
17:20 Open Discussion and Synthesis to break by 18:00
18:30 FINAL DINNER Followed By Talk From David Hopkins
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TUESDAY, 23 SEPTEMBER -- Please check out of rooms after breakfast
Session 8) Can we develop a more accurate and detailed record of Late Quaternary climate
and vegetation in Beringia ?
Chair: Pat Anderson
8:30 The Late Pleistocene Interstade (Karginskii/Boutellier Interval) Of Beringia: Variations In
Paleoenvironments And Implications For Paleoclimatic Interpretations
Patricia M. Anderson And Anatoly V. Lozhkin
8:50 Mid-to Late Wisconsin Transition in Northern Alaska:Contrasting Loess and Fluvial pollen
records and implications for Land Bridge environments:
Bob Nelson and L. David Carter
??9:10 Beringian Paleovegetation Maps and Trends : Pat Anderson and Linda Brubaker
9:30 Seasonal temperature records from Alaska based on fossil beetle data: Scott Elias
9:50 Late-Glacial Changes In An Arctic Landscape: The Northern Flank Of The
Brooks Range During Paleoindian Occupation
Dan Mann, Dorothy Peteet*, Rick Reanier, Mike Kunz, And Steve Durand
10:10-10:40 COFFEE BREAK
10:40 Controls And Spatial Variations Of Late Quaternary Paleoclimates In Beringia
Cary J. Mock, Patrick J. Bartlein, and Patricia M. Anderson
11:00 Late Pleistocene Climate History Of The Northern N. Pacific Lloyd D. Keigwin
11:20 Did Late-Glacial Sea Surface Temperate Changes In The North Pacific Affect
Beringian Climate? - Explorations With The GISS GCM
Dorothy Peteet*, Anthony Del Genio1, and K.-W. Lo
11:40 Open Discussion and Synthesis
12:00-1:00 LUNCH
Topic 9) What was the character of Holocene climate across Beringia?
Chair: Mary Edwards
13:00 Holocene Coastal Glaciation Of Alaska
Parker E. Calkin, Gregory C. Wiles, And David J. Barclay
13:20 Late-Quaternary Paleohydrology And Paleoclimatology Of Eastern Interior Alaska
Mary Edwards, Bruce Finney, Cary Mock, Mark Abbott, Nancy Bigelow, Val
Barber, Patrick Bartlein, And Kerry Kelts
13:40 The Last Beringian Survivors: Interdisciplinary Paleogeographical Studies
On Wrangel Island, East Siberia Sergey Vartanyan
14:00 Modern Pollen And Late Quaternary Paleoenvironmental Data From Wrangel Island
Northern Chukotka): Evidence For A "Warm-Wet" Younger Dryas Interval And Dwarf
Mammoth Environments
A.V. Lozhkin*, P.M. Anderson, S.L. Vartanyan
B.V. Belaya, T.A. Brown, And A.N. Kotov
14:20 GCM simulations in the region of Beringia since the last glacial maximum
Ben Felzer
14:40 Open Discussion and Synthesis:
15:30 Meeting ends late afternoon, September 23rd.
Shuttles will be provided back to Colorado Springs.