Figure 5.

Effects of food patch depletion rate on average sleep time. Average number of sleep minutes varying food patch depletion rate (higher values represent slower rates of patch depletion): interDistance 0.0: rS = 0.77, N = 218, P < 0.001; interDistance 0.35: rS = 0.79, N = 214, P < 0.001; interDistance 0.7: rS = 0.59, N = 190, P < 0.001.

Acerbi et al. BMC Ecology 2008 8:10   doi:10.1186/1472-6785-8-10
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