To accompany: Return of the pika: American pikas re-occupy long-extirpated, warm locations by Constance I. Millar and Andrew T. Smith, Nature Notes.

American pika re-colonization sites identified in this study 

Bodie State Historic Park – Noonday Mine 38.004 N; -119.1005 W; 2,615 m Site also clearly identified in maps in Smith (1974a), Smith & Gilpin (1997), Smith & Nagy (2015).

North Mono Craters Site 37.9116 N; -118.9985 W; 2,145-2,250 m

The primary data include temperatures (deg C) from mini-thermochron units placed in American pika habitats. These include temperature data from pika haypile surfaces and ~0.5 m below the haypile in talus matrices. 

Comparative temperature data

The following four .txt files contain thermochron temperature data (Maxim iButtons) for summer 2019 through summer 2020 at two pika sites: 1) North Mono Craters (recently re-colonized) and 2) Virginia Canyons (long extant). The files represent a thermochron placed on the surface of the haypiles and a thermochron in the matrix (0.5 m depth) of the talus below the haypile.

Table SM1. North Mono Craters, haypile surface temperature.

Table SM2. North Mono Craters, haypile matrix temperature.

Table SM3. Virginia Canyon, haypile surface temperature.

Table SM4. Virginia Canyon, haypile matrix temperature.