Tuesday, May 4, 2010
First day in the park.
We made it out of the Bear Lair lodge by 11:30 this AM. Went to see the Gardiner Basin exclosures and then up to the Yellowstone Center for Resources to pick up the research permit. Checked out the Albright visitors center and then headed out towards the Lamar Valley. It's cold (from 26-42 depending on elevation) and cloudy with occasional breaks in the clouds to let the sunshine and blue sky show through.
Near Specimen Ridge we spotted these bison calves. This was taken with a 400mm telephoto lens. Will got 3 calves in one shot. Getting ready to unpack the boxes and set up the lab. Then decide on dinner and make a plan for tomorrow.
Monday, May 3, 2010
Delayed in Roanoke
Tuesday, April 27, 2010
YNP Spring 2010
The Blog begins.
We are getting ready to ship out the lab. This year we are focusing on decompositon of plant tissue and Nitrogen mineralization (the tranformation of organic matter into inorganic NH4+ and NO3-). We need to get tubes ready for the N-mineralization experiment and make litter bags for the decomposition experiment. Below Peter is cutting the bottom off of 50 plastic centrifuge tubes, Will is cutting screening for the litter bags, and Wilson and Cozy are stapling the fiberglass screening together to make pouches to put dead plant tissue into.


Wednesday, September 16, 2009
"Harvesting" barley and weeds
In the picture above the light yellow/tan is planted barley in the exclosure. The area is 23 acres and you can see the edge of the fence on the left side and the trees in the front are the closest edge of the fenceline. The barley grew well only in the areas where Roundup was applied in the left half an herbicide directed at crested wheatgrass (Agropyron spicatum) was applied and Alyssum desertorum survived and the barley barely survived. Tuesday, September 15, 2009
Collecting samples and a little hiking


Since I was out in the park and had some time I decided to head towards Yellowstone Lake via Dunraven Pass/Mt. Washburn to look for Elk and Bison. As I got close to Mt. Washburn I decided to go to the fire outlook on the top. It's always closed in the spring so now was my chance to get to the highest point in the park. It is a 2.8 mile hike up an access road that is used by the Rangers that staff the outlook. There is a more difficult route up the front side of the mountain but it was closed due to grizzly activity. I took my bear spray and headed up at 9:50 AM and figured I could do it in one hour. After the first 1000 yds I thought I was done. Going from 1100 ft in Lexington to 8800 feet can take it out of you. But I turned it around and made it to the top at 10,243 ft in just under 1 hour. The weather turned nasty with rain/freezing rain, so I didn't spend much time at the top but I did meet a nice couple from Canada and they took my picture.
Of course a quarter of the way down the sky opened up to blue but it made for a nice descent. You can see the blue sky in the photo of fire killed trees below.
I then headed further south towards the lake into the Hayden Valley hoping to see large herds of bison or elk. I did come across a huge herd of bison ~300 crossing the road. No pictures I have plenty of those. I turned around and headed for the Gardiner Basin to start sampling the exclosure. It will be seeded with winter wheat on Thursday and I want to get a thorough sampling of the planted and now dead barley biomass, plus sample the areas where the barley didn't grow but A. desertorum did despite herbicide treatment. One interesting outcome of the fence and the planting of barley is that a pair of sand hill cranes now spend a large portion of their day feeding on the large number of grasshoppers as well as the barley seed heads. In the picture below taken at 7 this evening the male is getting a little upset with me getting too close and is letting out a loud warning call.

Tomorrow more sampling and a talk for the Yellowstone Center for Resources and USDA-NRCS.
Monday, September 14, 2009
Fall trip to YNP
I'm going out to get soil samples and give a talk on the latest data. Much of it from last spring and all of it analyzed by Maya and Camden with the technical expertise of Kelly Hemminger.
Getting ready to board.


After sampling the now invaded "native plant species" remnant a cloud burst opened up and I got the picture below of a rainbow over Roosevelt Arch. Not a bad way to end the day.
