Speciational Trends and the Role of Species in Macroevolution

  title={Speciational Trends and the Role of Species in Macroevolution},
  author={Douglas J. Futuyma},
  journal={The American Naturalist},
  pages={318 - 321}
  • D. Futuyma
  • Published 1 August 1989
  • Biology
  • The American Naturalist
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 failure of younger authors to cite precedents in the older literature for their ideas. Although I strongly advocate a historical perspective on one's field and attempt to live up to this ideal, I must admit to overlooking some points of similarity between Grant's ideas and my own, although I was… 
Peripatric speciation
Peripatric speciation is a mode of speciation in which a new species is formed from an isolated peripheral population.[1]:105 Since peripatric speciation resembles allopatric speciation, in that
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The results suggest that much of adaptation may be geographically local even when selection pressures are homogeneous, and argue that caution must be exercised when arguing that strongly geographically restricted alleles are necessarily the outcome of local adaptation.
  • D. Futuyma
  • Biology, Medicine
    Evolution; international journal of organic evolution
  • 1994
It is possible to feel such communion with the works of our scientific predecessors as to inspire not only admiration, but also gratitude and even affection. Long before I met him, Ernst Mayr had
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This article explores how standing genetic variation contributes to convergent genetic responses in a geographically spread population, and derives the geographic scale over which an allele dominates and the proportion of adaptive alleles that arise from standing variation.
Taking Evolutionary Transitions Seriously
The distinction between reversible and irreversible phenomena in biological information systems provides a basis for distinguishing microevolution from macroevolution. Biological transitions
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The concepts and terms of anagenesis and cladogenesis are still needed and very useful as descriptors of evolution.
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How modern phylogenetic analyses are central to defining and diagnosing adaptive radiation is discussed, as well asdiagnosing predictable patterns of ecological diversification during adaptive radiation, and reconstructing the history of adaptive radiations are discussed.
Networks and Hierarchies: Approaching Complexity in Evolutionary Theory
It is suggested that a pervasive pattern of stability in living systems across scale results from the architecture of nature’s economy itself—biological systems consisting of hierarchically nested, complex networks are extremely robust to extrinsic perturbations.


On the Role of Species in Anagenesis
It is proposed that because the spatial locations of habitats shift in time, extinction of and interbreeding among local populations makes much of the geographic differentiation of populations ephemeral, whereas reproductive isolation confers efficient permanence on morphological changes for them to be discerned in the fossil record, a consequence of speciation that supports a highly qualified version of punctuated equilibrium is pointed out.
The Theory of Speciational Trends
  • V. Grant
  • Biology
    The American Naturalist
  • 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.
Genetic Revolutions, Founder Effects, and Speciation
It is argued that, although founder effects may cause speciation under sufficiently stringent conditions, they are only one extreme of a continuous range of possibilities, and divergence may be driven in a variety of ways, without the need for drastic external changes.
Speciation by reinforcement.
  • R. Butlin
  • Biology, Chemistry
    Trends in ecology & evolution
  • 1987
The formation of new species must involve the evolution of barriers to gene flow within existing species, but how these barriers arise remains a problem and recent studies suggest serious limitations on the efficacy of reinforcing selection and a lack of well-substantiated examples.
Punctuated equilibria: an alternative to phyletic gradualism
Editorial introduction. Moving from populations to species. we recall that the process of speciation as seen through the hyperopic eyes of the paleontologist is an old and venerable theme. But the
The Genetic Basis of Evolutionary Change
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  • Models in paleobiology
  • 1972
Population structure in relation to macroevolution
  • Biol. Zentralbl
  • 1963
Isolation as an evolutionary factor
  • Proc . Am . Philos . Soc .
  • 1959