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Michelle Mack sorting ...Uploaded by: Tracy_Alley On: 1150758161 File Size: 65386 Comments: 0 / Views: 517 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. | |||||
Syndonia Bret-Harte me...Uploaded by: Tracy_Alley On: 1150756600 File Size: 70930 Comments: 0 / Views: 521 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...Uploaded by: Tracy_Alley On: 1150756446 File Size: 64005 Comments: 0 / Views: 487 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. | ||||
Burying decomposition ...Uploaded by: Tracy_Alley On: 1150612555 File Size: 130215 Comments: 0 / Views: 486 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...Uploaded by: Tracy_Alley On: 1150612406 File Size: 35801 Comments: 0 / Views: 453 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 SampleUploaded by: Tracy_Alley On: 1150610470 File Size: 69053 Comments: 0 / Views: 449 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...Uploaded by: Tracy_Alley On: 1150610246 File Size: 88582 Comments: 0 / Views: 497 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 RiverUploaded by: Tracy_Alley On: 1150610001 File Size: 108963 Comments: 0 / Views: 483 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. |
Neoprene Xtra-Tuf bootsUploaded by: Tracy_Alley On: 1150609787 File Size: 158672 Comments: 0 / Views: 487 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. | ||||
Research GridUploaded by: Tracy_Alley On: 1150517904 File Size: 87613 Comments: 0 / Views: 487 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 PlotsUploaded by: Tracy_Alley On: 1150517692 File Size: 59258 Comments: 0 / Views: 474 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. |
BoardwalkUploaded by: Tracy_Alley On: 1150517519 File Size: 67739 Comments: 0 / Views: 479 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. | |||
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