Data used to investigate how previous year spruce cones and food-supplementation affected red squirrel density. All data collected in Kluane, Yukon, Canada.

Data used for results shown in Table 2. Only neonate mass and offspring growth data. All data collected in Kluane, Yukon, Canada.

Data for results shown in Table S2 and S3. All data collected in Kluane, Yukon, Canada.

Data use for Results shown in Table S4. All data collected in Kluane, Yukon, Canada.

Data for results shown in Table S5. All data collected in Kluane, Yukon, Canada.

Data used for results shown in Table S6 (neonate mass and offspring growth rate). All data collected in Kluane, Yukon, Canada.

Data used for results shown in Table S6 (litter size) and S7 (litter sex ratio). All data collected in Kluane, Yukon, Canada.

Data used to show how offspring growth rates were affected by each treatment (Fig. S2). All data collected in Kluane, Yukon, Canada.

Effects of GC manipulation on fecal cortisol metabolite levels in pregnant females (Fig. S1). All data collected in Kluane, Yukon, Canada.

Fecal cortisol metabolite levels in female squirrels prior to being exposed to the playback treatments (Fig. S3). All data collected in Kluane, Yukon, Canada.

Contains data for Table 4 about how the playback experiment affected fecal cortisol metabolite levels. Data collected in Kluane, Yukon, Canada.