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Table 2 Predicted change in field metabolic rates (FMR) calculated conductance values from Fig. 1 and assuming that the decrease in winter body temperature is equivalent to an equal increase in ambient temperature

From: Energy savings due to the use of shallow body temperature reduction in overwintering Northern Cardinals

Predicted % increase in FMR with summer T b

Winter night

Winter day

2.9–5.7 %

4.5–9.0 %

  1. The range in predicted energy savings represents the percent change across the measured T a. Note that although the predicted increment is constant at all temperatures, as FMR increases with decreasing T a, the percent savings will be lower at lower T a
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Animal Biotelemetry

ISSN: 2050-3385