The competitive Darwin

  title={The competitive Darwin},
  author={Hugh Paterson},
Abstract Although Darwin was not the first to conceive directional selection as a mechanism of phenotypic change, it is his ideas that were received, and that have shaped population biology to this day. A significant change in his theoretical orientation occurred in the mid-1850s. About then he abandoned environmental selection in favor of competitive selection, and adopted relative adaptation with all its consequences as an alternative. These ideas changed his thinking fundamentally and shaped… 

Charles Darwin’s Origin of Species, directional selection, and the evolutionary sciences today

The five theories that can be extracted from Darwin’s monograph are summarized, the true meaning of the phrase “struggle for life” is explained, and Darwin's original concept of natural selection in populations of animals and plants is outlined.

Character Displacement and the Origins of Diversity

The empirical support for Darwin’s principle of divergence of character is examined, specifically that (1) competition promotes divergent trait evolution, (2) the strength of competitively mediated divergent selection increases with increasing phenotypic similarity between competitors, (3) divergence can occur within species, and (4)competitively mediated divergence can trigger speciation.

Evolution in Fossil Lineages: Paleontology and The Origin of Species

  • G. Hunt
  • Environmental Science, Geography
    The American Naturalist
  • 2010
Today the fossil record is much better explored, documented, and understood than it was in 1859, and a reasonably large set of studies tracing evolutionary trajectories within species can now be brought to bear on Darwin’s expectation of gradual change driven by natural selection.

Host interaction mechanisms in herbivorous insects – life cycles, host specialization and speciation

It is concluded that ‘escape and radiate’ co-evolution rests on unrealistic assumptions and empirical evidence favours sequential evolution of plants and herbivore, and the unique life cycles of insect herbivores may sufficiently explain their extreme diversity within the animal kingdom.

Taxon mapping exemplifies punctuated equilibrium and atavistic saltation

  • R. Zander
  • Biology
    Plant Systematics and Evolution
  • 2010
The technique for mapping taxa on a molecular tree, termed here caulistics, is much like mapping traits but recovers macroevolutionary information at the taxon level.

G. Evelyn Hutchinson in South Africa, 1926 to 1928

As a scientific discipline in South Africa, limnology has enjoyed a lower status and profile among both the academic community and the general public than has, for example, mammal research,

Genetic diversity and taxonomy: a reassessment of species designation in tuatara (Sphenodon: Reptilia)

New data of microsatellite DNA diversity and substantially increased mtDNA sequence for tuatara populations are presented and it is concluded that Sphenodon is best described as a single species that contains distinctive and important geographic variants.

Insects allocate eggs adaptively across their native host plants

It is found when insects and plants share a native range, 83% of insect species associated their eggs with plants conferring highest offspring survival, and this was broadly true across insect taxa and for generalists and specialists.



A succession of paradigms in ecology: Essentialism to materialism and probabilism

Lewontin (1974a), in his provocative essay ‘Darwin and Mendel — The Materialist Revolution,’ suggests that by the time On the Origin of Species was published in 1859, the notion of evolving species

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

Evolution and the Recognition Concept of Species: Collected Writings

The term "Isolating Mechanisms" is applied to the recognition concept environment and species species in terms of sterility a view of species updating the evolutionary synthesis.

The collected papers of Charles Darwin

OF CHARLES DARWIN Volume One and Volume Two Edited by Paul H. Barrett With a Foreword by Theodosius Dobzhansky Barrett makes these valuable writings available in two compact volumes which include

Competitive exclusion, coexistence and community structure

Review of three reputed examples of competitive exclusion in the field demonstrates that the widely-accepted competition-based interpretations are unlikely, that alternative explanations are overlooked, and that all other reported cases need critical reinvestigation.

The Shape of Life

Jim Watson published The Double Helix in 1968, during my first year of teaching at Harvard. I well remember, as a baby assistant professor cowed into silence, the disapprobation of my senior

Pervasive adaptive evolution in mammalian fertilization proteins.

It is demonstrated that the evolution of seven genes involved in mammalian fertilization is promoted by positive Darwinian selection by using likelihood ratio tests (LRTs).

The Principles of Geology

THE principles are, notwithstanding the origin of the word, the last things you attain to in the course of scientific investigation; but they are what you first explain to another who is commencing

Mate selection and the evolution of highly polymorphic self/nonself recognition genes.

It is shown that mate selection cannot be a strong force maintaining allorecognition polymorphism in two colonial marine invertebrates, and the regulation of intraspecific competitive interactions appears to promote the evolution of polymorphisms in these species.

Sexual selection and the mating system of Argusianus argus (Aves: Phasianidae)

Choice between males with or without display sites, on gross plumage and display differences, provides an alternative explanation for the evolution of the males' plumage.