00622pam a2200229 a 4500 0632014989 (pbk.) DLC 591 BLA 1987 A081 Or. Krebs, J. R. An introduction to behavioural ecology / 2nd ed. Boston : Blackwell Scientific Publications, 1987, c1981. ix, 389 p. : ill. ; 24 cm. Includes index. Behavior evolution. Animal behavior. Human behavior. Animal ecology. Human ecology. Davies, N. B. EK 15863 15863 0 0 0 591_000000000000000_BLA_1987_A081_OR 0 69610 LBA LBA A081 2017-12-13 1 591 BLA 1987 A081 Or. A09423 2018-12-15 2018-11-28 2017-12-13 EK