(cont) Resource and climatic variability : influences on sociality of two southwestern corvids / John M. Marzluff and Russell P. Balda -- Food sharing in the raven, Corvus corax / Bernd Heinrich -- Social competition under mandatory group life / Gregory B. Pollock and Steven W. Rissing -- Relationships between ecology and social behavior in cockroaches / J.Y. Gautier, P. Deleporte and C. Rivault -- Risk sensitivity and foraging in colonial spiders / George W. Uetz -- Resource inheritance in social evolution from termintes to man / Timothy G. Myles
Ecological trade-offs and social behavior / C.N. Slobodchikoff and William M. Shields -- Cooperation, aggression, and the evolution of social behavior / C.N. Slobodchikoff and William C. Schulz -- The stable group and the determinants of foraging group size / Luc-Alain Giraldeau -- Monogamy in relation to resources / George W. Barlow -- Resources and group sizes of primates / Peter S. Rodman -- Resources, philopatry, and social interactions among mammals / Peter M. Waser -- Resources and social organization of ground- dwelling squirrels / Kenneth B. Armitage -- Social systems, resources, and phylogenetic inertia / Joel Berger -- Ideal free coloniality in the swallows / W.M. Shields ... [et al.] -- Territory quality : key determinant of fitness in the group-living green woodhoopoe / J. David Ligon and Sandra H. Ligon