Table 1.

Environmental, ecological and behavioral data for Ochotona princeps and Ochotona collaris

Ochotona princepsOchotona collaris
Altitude at which collected (m) 3350 1070 
Approximate barometric pressure (kPa) 66.7 89.3 
Mean annual temperature (°C) -3.71±0.5a -3.47±0.8b 
Mean annual snowfall (mm) 930.0±54.2a 1764.8±77.5b 
Home territory size (m2720±15.7c 700±12.1d 
Above ground activity (h day-14.1±0.8c 4.5±0.6d 
Ochotona princepsOchotona collaris
Altitude at which collected (m) 3350 1070 
Approximate barometric pressure (kPa) 66.7 89.3 
Mean annual temperature (°C) -3.71±0.5a -3.47±0.8b 
Mean annual snowfall (mm) 930.0±54.2a 1764.8±77.5b 
Home territory size (m2720±15.7c 700±12.1d 
Above ground activity (h day-14.1±0.8c 4.5±0.6d 

References: aGreenland(1989); bAlaska Climate Research Center/NOAA-CIRES Diagnostic Center (1990; http://www.cdc.noaa.gov/); cSmith and Ivins(1986); dBroadbooks(1965).

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