Sentence examples for which speciation from inspiring English sources

In the course of revising the classification of ants native to the South Pacific, he formulated the concept of the "taxon cycle," in which speciation and species dispersal are linked to the varying habitats that organisms encounter as their populations expand.

Here, we show that the range of parameters for which speciation is possible increases when mutational steps are large.

Goldberg et al. (2011) recently expanded the DEC model of Ree et al. to incorporate range-dependent diversification, in which speciation and extinction parameters are dependent on the size of ancestral geographic ranges; for example, widespread ancestral lineages would have a higher rate of allopatric speciation and a lower rate of extinction than ancestral lineages endemic to a single area.

Oceanic ridges are motivating places to study mechanisms by which speciation occurs.

However, as divergent selection between environments is equally consistent with allopatric speciation [75], it is important to identify the geographic context in which speciation has occurred.

The study of speciation genetics can be imperfectly divided into two categories: the study of genes that directly contribute to speciation and population genetic analyses that aim to reconstruct the natural historical context in which speciation occurs.

Specific to the field of speciation research, examples of "speciation in action" can now be chosen, in which the speciation process took place very recently or is ongoing.

However, depth parapatry and seasonal sympatry might play important roles in the population subdivision, both of which involve speciation without the impenetrable barrier to gene flow of the vicariance speciation model.

Observed patterns of overlap for the BSC classifications were most consistent with models in which sympatric speciation is common, contributing between 32 % and 95%% of all speciation events.

Presystemic As speciation analysis must therefore be considered an essential part of the risk evaluation process, especially with respect to toxicity, which is speciation dependent.

Rapid speciation in prokaryotes is fostered by several unique properties of prokaryotic genetic exchange, including their propensity to acquire novel gene loci by horizontal genetic transfer, as well as the rarity of their genetic exchange, which allows speciation by ecological divergence alone, without a requirement for sexual isolation.