The Structure of Evolutionary Theory

Species as Individuals in the Hierarchical Theory of Selection 707 Although I recognize that some notion of a common environmen ...

708 THE STRUCTURE OF EVOLUTIONARY THEORY other cannot be explained by competition between their sympatric populations, but depen ...

Species as Individuals in the Hierarchical Theory of Selection 709 Species 3 become extinct, but Species 2 survives thanks to po ...

710 THE STRUCTURE OF EVOLUTIONARY THEORY imply increasing dominance of such species within the clade, for this positive trait ca ...

Species as Individuals in the Hierarchical Theory of Selection 711 evolution because such a process can't construct an intricate ...

712 THE STRUCTURE OF EVOLUTIONARY THEORY fallacy in denying status to species selection by confusing personal interest with gene ...

Species as Individuals in the Hierarchical Theory of Selection 713 open, but I am not confident that the argument can prevail (t ...

714 THE STRUCTURE OF EVOLUTIONARY THEORY relative frequency at all levels (with the possible exception of some dubiety about the ...

Species as Individuals in the Hierarchical Theory of Selection 715 and Gould, 1972; Gould and Eldredge, 1977), we had only the g ...

716 THE STRUCTURE OF EVOLUTIONARY THEORY fruitful and fully justified, but I would also defend such an effort as the basis for a ...

Table 8-1. The Grand Analogy ...

Table 8-1 (continued) ...

Table 8-1 (continued) ...

720 THE STRUCTURE OF EVOLUTIONARY THEORY 673). But this basic ratcheting already reveals some pivotal differences between the ev ...

Species as Individuals in the Hierarchical Theory of Selection 721 birth itself (speciation)—and equated the correlate at one le ...

722 THE STRUCTURE OF EVOLUTIONARY THEORY perspective, but a blessing in richness rather than a nuisance in confusion—drives at o ...

Species as Individuals in the Hierarchical Theory of Selection 723 mode. Whatever we invent in one generation, we pass directly ...

724 THE STRUCTURE OF EVOLUTIONARY THEORY clades could not dominate the history of life, as they manifestly do, particularly in m ...

Species as Individuals in the Hierarchical Theory of Selection 725 can take place. Now suppose that a strong bias exists in prod ...

726 THE STRUCTURE OF EVOLUTIONARY THEORY We may postulate any number of plausible circumstances that would generate directional ...