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> Arctic Tundra Ecosystems: Toolik Lake, Alaska

Geum glaciale

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Description: An adorable Arctic flower!

Awesome landscape

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Description: The landscape was awesome along the Dalton Highway.

Michelle Mack sorting ...

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Description: Michelle Mack, an ecosystem ecologist and professor at the University of Florida, is sorting ground covering from the soil core samples. After she is finished, she will weigh each soil core sample.

View from Cottongrass Inn

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Description: My bedroom window view is amazing! I can see the spectacular Brooks Mountain Range!

Syndonia Bret-Harte me...

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Description: Syndonia Bret-Harte is an ecologist and professor at the University of Alaska-Fairbanks. She is measuring a plot of land for a future experiment. Scientists use the metric system. The black and white striped stick in the background is to measure snow depth.

Syndonia Bret-Harte re...

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Description: Syndonia Bret-Harte is an ecologist and professor at the University of Alaska-Fairbanks. She carries her science journal with her everywhere to take descriptive notes and make drawings. Record keeping is an important part of research for a scientist.

Cottongrass Inn

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Description: This is the building where I sleep at Toolik. There are sixteen residents in the building sharing two bathrooms and one phone. smile.gif Cottongrass grows in the Arctic Circle.

Hanna wearing caribou ...

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Description: Hanna, a graduate student from Korea, studying at Toolik Lake Research Station. She posed for a picture for me wearing the antlers she found and donated to my classroom.

Burying decomposition ...

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Description: Jennie DeMarco, graduate student at the University of Florida, is burying litter bags filled with leaves in the tundra. She will return in August of each year to see how quickly the leaves decompose.

Toolik Lake Research S...

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Description: This picture was taken from a distance, but you can see the campsite as well as Toolik Lake. Toolik Lake was a camp for the crew working on the Trans-Alaskan pipeline in the 1970's. Our dining hall is the same dining hall used by the pipeline crew thirty years ago. Research has been conducted at Toolik Lake for three decades!

Frozen Core Sample

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Description: One of the experiments we conducted on Saturday, June 17th was soil core sampling. We drove a hollow metal tube into the permafrost to take a soil sample. This picture shows a ten centimeter soil sample with layers of ice. Many tests will be conducted on the soil in the lab.

Digging to reach perma...

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Description: The tundra is a thin covering of vegetation on top of permafrost. Permafrost is frozen soil. The soil stays frozen year round. This picture shows that we reached permafrost shortly after pulling back the tundra.

Hiking to the Sag River

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Description: We hiked two miles to the Sag River. Our journey was longer than normal, because walking on the tundra is immensely challenging. You can see that we had to climb down a steep hill. The worst part was climbing up the hill. huh.gif

Neoprene Xtra-Tuf boots

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Description: The Neoprene Xtra-Tuf boots are standard footwear for the Arctic. They keep your feet dry in the swampy areas. I took a picture of my boots in the mushy tundra. When you walk on the tundra, it feels like you are walking on a sponge.

Caribou roaming

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Description: Caribou are migratory. They travel hundreds of miles between summer and winter grounds.

Caribou

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Description: Both sexes of caribou have antlers. Wild reindeer are called caribou. Caribou live in the Arctic and subarctic regions of northern Europe, Asia, and North America.

Research Grid

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Description: You will notice a ladder placed horizontally between two boards. On Thursday, June 15th, we were on our knees plucking invasive plants out of the plots. It was painfully tedious work. The research has been continuous on these plots since 1995. They are studying the effects of how various plants respond to a plant species being removed.

Decomposition Plots

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Description: These are new plots we marked on Friday, June 16th. We will bury the litter bags within designated plots in the next week. The litter bags will be studied over a period of five years to see how fast leaves decompose in Arctic temperatures as well as how much nitrogen and carbon are placed back in the soil.

Boardwalk

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Description: The planks of wood mark a path through the tundra to various experiment sites. You can see that it is very foggy, because the weather from the Arctic Ocean has brought fog and rain to Toolik Lake.

Snow Fence

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Description: The snow fence was built by researchers in order to study the effects of snow depth on various shrubs.



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