Results 1 to 10 of about 25,956 (178)
Genetics and ecological speciation [PDF]
Species originate frequently by natural selection. A general mechanism by which this occurs is ecological speciation, defined as the evolution of reproductive isolation between populations as a result of ecologically-based divergent natural selection. The alternative mechanism is mutation-order speciation in which populations fix different mutations as
Dolph, Schluter, Gina L, Conte
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Simulated ecology-driven sympatric speciation [PDF]
11 pages, 5 figures, 1 table, uses package ...
Martins, J. S. Sa' +2 more
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Soil bacteria respond rapidly to changes in new environmental conditions. For adaptation to the new environment, they could mutate their genome, which impacts the alternation of the functional and regulatory landscape.
Sumit Mukherjee +9 more
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Functional diversification within a predatory species flock. [PDF]
Ecological speciation is well-known from adaptive radiations in cichlid fishes inhabiting lentic ecosystems throughout the African rift valley and Central America.
Edward D Burress +5 more
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Bird song, ecology and speciation [PDF]
The study of bird song dialects was once considered the most promising approach for investigating the role of behaviour in reproductive divergence and speciation. However, after a series of studies yielding conflicting results, research in the field slowed significantly. Recent findings, on how ecological factors may lead to divergence in both song and
Hans, Slabbekoorn, Thomas B, Smith
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Genomics of Rapid Incipient Speciation in Sympatric Threespine Stickleback. [PDF]
Ecological speciation is the process by which reproductively isolated populations emerge as a consequence of divergent natural or ecologically-mediated sexual selection.
David A Marques +6 more
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Seven Questions on the Chemical Ecology and Neurogenetics of Resource-Mediated Speciation
Adaptation to different environments can result in reproductive isolation between populations and the formation of new species. Food resources are among the most important environmental factors shaping local adaptation.
Xiaocui Wang +4 more
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The speed of ecological speciation [PDF]
SummaryAdaptation can occur on ecological time‐scales (contemporary evolution) and adaptive divergence can cause reproductive isolation (ecological speciation). From the intersection of these two premises follows the prediction that reproductive isolation can evolve on ecological time‐scales. We explore this possibility in theory and in nature. Finding
Andrew P, Hendry +2 more
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Little ecological divergence associated with speciation in two African rain forest tree genera
Background The tropical rain forests (TRF) of Africa are the second largest block of this biome after the Amazon and exhibit high levels of plant endemism and diversity. Two main hypotheses have been advanced to explain speciation processes that have led
Wieringa Jan J +3 more
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Thermal adaptation and ecological speciation [PDF]
AbstractEcological speciation is defined as the emergence of reproductive isolation as a direct or indirect consequence of divergent ecological adaptation. Several empirical examples of ecological speciation have been reported in the literature which very often involve adaptation to biotic resources. In this review, we investigate whether adaptation to
I, Keller, O, Seehausen
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