Pika Patrol, 2019 Edition


End of summer. It’s time for Pika Patrol!

Due to complications last summer, my husband and I weren’t able to volunteer with Front Range Pika Project last fall. We were determined to make it this year.

If you have been following my blog for several years, you might remember that two years ago, in 2017, my husband, my son, my son’s girlfriend and I visited a pika site near Grand Lake, on the western edge of Rocky Mountain National Park. We were disappointed that year to find the site abandoned.

This year, I was a little faster on the sign-up, and found a more promising site. This one was on the lower edge of the tundra, at 11,961 feet. The trail to get to the site was just 2 1/2 miles long!

What I forgot was that the parking area was at 10,440 feet. When we do the math, that’s an average grade of 14%. Hmmmm…..

By the time we’d gone 100 feet up the trail, my husband and I realized this was going to be a lot harder than it would have been twenty years ago. But we took it slow, and stopped frequently to rest. It took us two hours to go the two and a half miles, but we did it.

View as we left the forest and came onto the tundra. The pika site is the talus slope at the base of the mountain. In winter that area will be covered with six to ten feet of snow.

As we came onto the tundra, we had to skirt around a wetlands created by snowmelt draining off the surrounding peaks. The snows pile up here in winter.

We heard squeaky-toy squeaks of pika calling before we got to the talus. And once we got to the talus, pika were very obvious.

Pika in a rare state of not running.
The jumble of rocks it is on is called ‘talus’.

We immediately saw a little pika scampering across the rocks. It was running to a small patch of plants at the base of the talus.

The pika is cutting down plants until it has a mouthful.
You can see the trimmed tops of the plants in the foreground.

Good pika habitat needs a pile of rocks jumbled together to form lots of nooks and crannies. It needs lots of plants nearby to eat, and to cut for hay. And it needs deep winter snows to protect the pika from predators, howling winds and bitterly cold temperatures. This was very good pika habitat.

What I hadn’t expected is that the pika had two speeds: still, and running. There was no walking between tasks. They hustled.

In this shot, you can see that they are members of the rabbit family, not the rodent family.

Pika gather the plants and dry them, turning them into hay. They then eat the hay through the winter. That means that pika have to gather enough plants to feed themselves for 8-9 months of the year.

The pika brings the cut plants back to the talus, and drops them in piles outside their holes. You can see some of the plants at the entrance to a den. The plants dry into hay, which the pika eats through the winter.

It takes about 62 pounds (28 kg) of forage to feed a pika through the winter. That translates to 14,000 trips to gather this much hay. No wonder they hustle.

What these little guys can’t take are temperatures over 75o. They are climate-change indicators. If their world warms too much, they will not survive.

About Amy Law

Amy Law is a science geek. She feels about science the way some people feel about music, or art, or sports – a total and complete emotional connection. She thinks in science. For Amy, there’s nothing better than helping people see the beauty of science as she does. She loves to untangle a complicated subject into its parts, explaining it so that anybody can understand what’s happening. Let her show you her world...
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2 Responses to Pika Patrol, 2019 Edition

  1. What a great trek! I had no idea they had to store so much food.

  2. These images are fantastic! 14,000 trips. No wonder they stay so trim. Amazing work, Amy.

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