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Pika demography data for West knoll, Indian Peaks wilderness, S slope of Niwot Ridge from 2008-7-14 to ongoing, June-October

Data set creator(s): Chris Ray

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For methodology questions, contact Chris Ray
UCB 450
Boulder CO 80303

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    1. Use our data freely. All Niwot LTER data products (except some recent data sets for which metadata but not data are available) are released to the public and may be freely copied, distributed, edited, remixed, and built upon under the condition that you provide acknowledgement as described below.

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Pikas are captured, anesthetized, marked with colored ear-tags, non-lethally sampled, and released at point of capture during June-October. Study sites include a gradient of elevation and slope aspect, allowing a comparative study of pika response to variation in climate and sub-surface microclimate. Daily variation in snow cover and sub-surface temperatures are measured using data loggers placed within the territories of marked pikas. Focal territories are revisited at least once to characterize available vegetation via transect sampling and at least annually to service data loggers and record pika survival. Samples collected for genetic and physiological studies include ectoparasites, blood, saliva, urine, feces and hair as well as records of sex, stage, reproductive status, weight, foot length and body temperature.


West knoll of the saddle on Niwot Ridge, the highest site included in this study, with multiple slope aspects;
Long Lake, a north-facing site just below the lower north-facing part of the west knoll site;
Mitchell Lake, a south-facing site just above Mitchell Lake on the south slope of Mt. Audubon at an elevation similar to the Long Lake site;
Cable Gate, a south-facing site just upslope of the final parking lot on the Niwot Ridge road.
Bounding box:
40.04869565,    -105.5998408,    SW corner
40.04877550,    -105.5842168,    SE corner
40.09023407,    -105.6002052,    NW corner
40.09031403,    -105.5845718,    NE corner

Date Range:

2008-7-14 to ongoing




location, slope-aspect, easting, northing, tag type, ear code, ear number, weight, stage, sex, reproductive status, ear-mites sampled, ear-mite cover, fleas sampled, fleas observed, tissue sampled, hair sampled,urine sampled, feces sampled-dry pellets, feces sampled-wet pellets, feces sampled-caecal, blood sampled-retro-orbital, blood sampled-ear punch, smear, Nobuto strip, saliva sampled, rectal temperature, neck circumference, foot length

Location: West knoll • Indian Peaks wilderness • S slope of Niwot Ridge

At a glance:


Location Group: Niwot Ridge, Outside study area

Found within: Niwot Ridge (USFS - UNESCO Biosphere Reserve)
Located in: USFS - UNESCO Biosphere Reserve, USFS - Arapaho and Roosevelt National Forests
(Click to learn more about these locations)

More data from: Niwot Ridge, Outside study area

Core Data Set: yes Core Area: Populations
Discipline: Animal ecology
Award Or Grant: DEB1637686

Data Citation

Ray, Chris. 2019. Pika demography data for West knoll Indian Peaks wilderness S slope of Niwot Ridge from 2008-7-14 to ongoing, June-October.

CU Boulder

This material is based upon work supported by the National Science Foundation under Cooperative Agreement #DEB-1637686. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necesarily reflect the views of the National Science Foundation.

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