Wildlife of the Great Basin

The last two weeks has been filled with capturing bats, monitoring sage grouse,  and working on establishing protocols for measuring flow rate in various streams, stock tanks, and reservoirs in the Great Basin and Modoc Plateau regions. For collecting bats, we targeted perennial water sheds, stock tanks, and meadows scattered from High Rock Canyon north to the Oregon state line and west to the Hays Mountains. I teamed up with people from all over Nevada and California who came for the annual bat blitz. In four days we caught several hundred bats (one of the nights we caught 240 bats) and about 15 different species. The most notable species that we caught were the Townsend’s Big Eared Bat, Pallid Bat, Long Legged Myotis, and Long Eared Myotis.

IMG_5501The Townsend’s Big Eared Bat caught near Painted Peak in Washoe County, Nevada. (Photo by Jennifer Mueller)

During one of our office trainings that went over measuring stream flow rates, we decided to go up Hay’s Canyon. During this training we went over the use of flumes, V-notch weirs, the use of meters, and the use of the bucket method. We also went over which technique was batter depending upon stream size, velocity, and the characteristics of the channel. While we were going up the canyon we saw a single big horn sheep ewe in the rocks above us but didn’t see any others. After we did some flow rates in various springs and creeks in the area, we decided to do more recordings along Hay’s Canyon on our way back. At our last stop we looked up from the channel we were working in to find fourteen big horn sheep above us on the rock face. The big horn sheep had come down to drink where we were working. With them were several rams and some lambs and it was a nice treat after a long day. We also saw another band of at least eight big horn sheep coming up another slope to join the herd above us, so we had roughly twenty-two big horn sheep.

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The majestic Big Horn Sheep. Both photos were taken in Hay’s Canyon by myself.

Finally, while I’ve been collecting grass seed in the area, I’ve also been doing fuel loading surveys, assisting in determining past fire histories in the region (especially in timber and sagebrush steppe areas), and monitoring sage grouse. The largest flock of sage grouse that I have seen so far was 66 individuals in one area with another flock of 18 individuals in an adjacent stream watershed. Every time I see sage grouse I take a GPS waypoint, pictures, and record the number of individuals seen. So far this summer I have seen roughly 132 sage grouse, and several raptor species.

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Sage grouse found at Mosquito Lake in a site heavily dominated by great basin wild rye, prairie junegrass, western wheat grass, and low sage brush.

I hope everyone else is having a fun internship and is staying safe out there!

Sincerely,

Jennifer

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