Figure 3. Relationships between climate variables (a mean spring temperature (oC); b mean spring snowpack (cm)) and pup emergence date. The black, bold line represents the average individual response. Each thin grey line represents a unique female, the length of line showing the range of weather conditions measured for that female. Plot has been filtered to include only those females with 3 or more litters. (number of females = 73; number of litters = 303).