Ice Position & Dominant Vegetation 12k bp uncal. Herd Following - - PowerPoint PPT Presentation

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Mar 19, 2023 349 likes •584 views

Ice Position & Dominant Vegetation 12k bp uncal. Herd Following Began Much Earlier in the Southeast Appalachians ICE Tundra Munsungun Glaciated Spruce Tundra Summits Pine Mixed Ice Position & Dominant Vegetation 12k bp

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ICE Tundra Spruce Pine Mixed Ice Position & Dominant Vegetation 12k bp uncal. “Herd Following Began Much Earlier in the Southeast Appalachians “ Tundra Summits Munsungun Glaciated

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ICE Tundra Spruce Pine Mixed Ice Position & Dominant Vegetation 12k bp uncal. “Herd Following Began Much Earlier in the Southeast Appalachians “ Tundra Summits Munsungun Glaciated

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ICE Tundra Spruce Pine Mixed Ice Position & Dominant Vegetation 12k bp uncal. “Herd Following Began Much Earlier in the Southeast Appalachians “ Tundra Summits Munsungun Glaciated

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Climate, Vegetation and Caribou

In north-eastern North America from 16.5 ka to 7 ka

A time of real climate change

Don Gribble 2017

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Glacial art work provided by Paige Newby

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Very few ancient pollen sites

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Conclusions

Appalachian refugium was ideal for large caribou herds
With early glacial retreat caribou habitat expanded
The Younger Dryas stabilized habitat in Ontario, Southern

Quebec and New England

Southern habitat isolated to high elevations
Post Y.Dryas boreal advance squeezed habitat north
Corridor of suitable habitat opened along north shore

St.Lawrence to Labrador about 9 ka (or earlier)

Caribou thriving in Ungava today came from Appalachia
Did herds cross from N.Ontario or south shore and N.E.?