Solar noon and tactile cues synergistically regulate clutch size: a new approach to investigations of avian life-history theory

摘要

Life-history theory is central to our understanding of the evolutionary processes that drive adaptation. According to life-history theory, a trade-off between reproduction and survival means that organisms cannot maximize both at the same time (Gadgil & Bossert 1970, Charnov & Krebs 1974, Stearns 1976, 1989, Reznick 1985, Morris 1986). As Reznick (1985) stated while reviewing the costs of reproduction, ‘To be the best in all possible worlds is not biologically possible; to be well adapted to even one world requires compromise.’