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. 2014 Sep 30;17(12):1553–1559. doi: 10.1111/ele.12375

Table 1.

The parameters used for the predicted predator–prey relationships in Fig. 1; parameters represent constants and exponents of allometric power equations with the form Y = C*Mb

Metabolic rate (kg/day)
Foraging path width (m)
Predator daily distance moved (m)
Prey biomass (kg/m2, terrestrial or kg/m3, marine
Biome Taxonomic group CR bR CW bW CD bD CB bB
Universal All taxa 0.75 0.0423 0.349
Terrestrial mammals 0.171 (0.77) 537 (350) 0 (0.10) 0.026 0.20
snakes 0.017 (0.889) 45.2 (20) 0 (0.25)
Marine mammals 0.171 (0.77) 12532 0.17 (0.10) 0.008 0.10
sharks 0.052 (0.84) 6800 (5000) 0.16

Values used for lower prey size thresholds in Fig.1a and c are in bold text. Universal values were used where possible (see text for details). Parameter values used for predicting the estimated spread of predator–prey relationships, Fig.1b and d, were randomly varied ± 12.5%; mean values are shown in parentheses. References and further details are given in Appendix S1.