On the Role of Species in Anagenesis

@article{Futuyma1987OnTR,
  title={On the Role of Species in Anagenesis},
  author={Douglas J. Futuyma},
  journal={The American Naturalist},
  year={1987},
  volume={130},
  pages={465 - 473}
}
  • D. Futuyma
  • Published 1 September 1987
  • Biology
  • The American Naturalist
Speciation is central to the hypothesis of punctuated equilibria s developed by Eldredge and Gould (1972; see also Gould and Eldredge 1977, 1986; Gould 1982) and by Stanley (1975, 1979). Without the claim that evolutionary change is associated with speciation, punctuated equilibria would consist merely of the statement (to which no one would take exception) that rates of evolution vary. Population geneticists have generally been skeptical about punctuated equilibria (e.g., Templeton 1980; Lande… 

Speciational Trends and the Role of Species in Macroevolution

Professor Grant (1989) argued that in my recent note on the role of species in anagenesis (Futuyma 1987), I have independently discovered his principle of "speciational trends," and he noted the

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  • 1989
The subject of speciational trends is reviewed here for several reasons, since it can explain some macroevolutionary phenomena that are difficult o account for by any other process.

Adaptive speciation: the role of natural selection in mechanisms of geographic and non-geographic speciation.

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