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Spatial Extent of Data

USGS Data Source

USGS Thesaurus Keywords

ecology

ISO 19115 Topic Category

biota

Other Subject Keywords

marmot, weather, snowpack, pika

Place Keywords

Washington, North Cascades National Park

Counts of American Pikas and Hoary Marmots in North Cascades National Park 2016-2017

USGS scientists counted American pikas (Ochotona princeps) and hoary marmots (Marmota caligata) in North Cascades National Park, Washington, USA during 2016. Hoary marmots were resurveyed in 2017, primarily by the National Park Service. Surveys occurred at sites of previous studies by Jason Bruggeman (pikas - 2009-2013), Aidan Beers (pikas - 2013-2015), and Roger Christophersen (marmots - 2007-2008) and followed protocols implemented by these researchers. Data include animal counts, survey locations, and survey dates for all surveys conducted by USGS. Marmots are classified as adult, yearling, or juvenile for observations in which age was evident.

Get Data and Metadata
Author(s) Aaron N Johnston orcid
Publication Date 2018
Beginning Date of Data 2016-07-12
Ending Date of Data 2017-09-09
Data Contact
Aaron N Johnston
DOI https://doi.org/10.5066/P9ILP43H
Citation Johnston, A.N., 2018, Counts of American Pikas and Hoary Marmots in North Cascades National Park 2016-2017: U.S. Geological Survey data release, https://doi.org/10.5066/P9ILP43H.
Metadata Contact
Aaron N Johnston
Metadata Date 2020-08-26
Related Publication
Citations of these data

Loading https://doi.org/10.1002/ECY.2638
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License http://www.usa.gov/publicdomain/label/1.0/
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Harvest Source: ScienceBase
Harvest Date: 2025-09-27T05:01:22.018Z