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Animal species and evolution
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The article was published on 1963-01-01 and is currently open access. It has received 7870 citations till now. The article focuses on the topics: Species problem.read more
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Evolutionary relationships within the ensatina eschscholtzii complex confirm the ring species interpretation
TL;DR: Division of this complex into separate species on the basis of the observed patterns of monophyly for mitochondrial DNA is unwarranted because further sampling could reveal additional instances of paraphyly across subspecies and, more generally, because mtDNA alone should not be used to infer species boundaries.
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Coupling of dispersal and aggression facilitates the rapid range expansion of a passerine bird.
TL;DR: Changes in aggression on a large temporal and spatial scale across populations of two sister taxa of bluebirds (Sialia) are studied to show that coupling of aggression and dispersal strongly facilitated the range expansion of western bluebirds across the northwestern United States over the last 30 years.
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Interacting Phenotypes and the Evolutionary Process. II. Selection Resulting from Social Interactions.
TL;DR: A model of social selection acting on interacting phenotype that can be evaluated independently from the genetics of interacting phenotypes is presented, analogous to covariance models of other forms of selection.
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A simple neural network generating an interactive memory
TL;DR: It is argued that certain plausible assumptions about the properties of the synapses coupling groups of pyramidal cells lead to the generation of an interactive memory.
Journal Article
On the evolutionary ecology of species' ranges
TL;DR: It is suggested that a rich range of evolutionary patterns in species’ ranges may occur, including expansions or contractions, leading to dynamism in ranges even in epochs without strong directional environmental change.