... models and empirical tests can be found in Parker and Sutherland (1986), Milinski and Parker (1991), Kennedy and Gray (1993), Tregenza (1995), Tregenza et al (1996), van der Meer and Ens (1997), and ... energetic gain and safety (Moody et al 1996; Grand and Dill 1999) and for empirical studies seeking to measure the energetic equivalence of predation risk (Abrahams and Dill 1989; Grand and Dill 1997; ... the Foraging with Others: Games Social Foragers Play Figure 10. 4 Numerical example of the joint effect of foraging (x-axis) and antipredation benefits (y-axis) favoring solitary versus social foraging...