Results 1 to 10 of about 25,956 (178)

Genetics and ecological speciation [PDF]

open access: yesProceedings of the National Academy of Sciences, 2009
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
openaire   +2 more sources

Simulated ecology-driven sympatric speciation [PDF]

open access: yesPhysical Review E, 2001
11 pages, 5 figures, 1 table, uses package ...
Martins, J. S. Sa'   +2 more
openaire   +3 more sources

Incipient Sympatric Speciation and Evolution of Soil Bacteria Revealed by Metagenomic and Structured Non-Coding RNAs Analysis

open access: yesBiology, 2022
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
doaj   +1 more source

Functional diversification within a predatory species flock. [PDF]

open access: yesPLoS ONE, 2013
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
doaj   +1 more source

Bird song, ecology and speciation [PDF]

open access: yesPhilosophical Transactions of the Royal Society of London. Series B: Biological Sciences, 2002
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
openaire   +2 more sources

Genomics of Rapid Incipient Speciation in Sympatric Threespine Stickleback. [PDF]

open access: yesPLoS Genetics, 2016
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
doaj   +1 more source

Seven Questions on the Chemical Ecology and Neurogenetics of Resource-Mediated Speciation

open access: yesFrontiers in Ecology and Evolution, 2021
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
doaj   +1 more source

The speed of ecological speciation [PDF]

open access: yesFunctional Ecology, 2007
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
openaire   +2 more sources

Little ecological divergence associated with speciation in two African rain forest tree genera

open access: yesBMC Evolutionary Biology, 2011
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
doaj   +1 more source

Thermal adaptation and ecological speciation [PDF]

open access: yesMolecular Ecology, 2011
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
openaire   +2 more sources

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