Sentence examples for speciation without from inspiring English sources

Quantum speciation without polyploidy has been seen in the annual plant genus Clarkia.

Our results indicate that the recombinational speciation model, and the resulting fertility selection, are very unlikely to lead to hybrid speciation without additional isolating mechanisms.

To our knowledge, this is the only polymer proposed in the literature for direct inorganic mercury and methylmercury speciation without need of chromatography or quantification by difference.

By simulating a realistic model for hybridization between differentiated taxa, we have shown that previously hypothesized processes may lead to homoploid hybrid speciation without the local extinction of parental species.

This is important because one cannot discuss speciation without first specifying criteria for recognizing species (Wiens 2004).

His thinking changed from the view that species formed in isolated populations only, as on islands, to an emphasis on speciation without isolation; that is, he saw increasing specialisation within large stable populations as continuously exploiting new ecological niches.

However, sympatric speciation, divergence without geographical isolation, is highly controversial2.

"In contrast, it turns out that conspicuous coloration increases speciation rates without increasing extinction rates", said Dr Wüster.

It appears that unusual or contrasting geologies can stimulate speciation even without strong barriers to gene flow, supporting the idea that discontinuous contrasting geologies may play a large role in evolutionary diversification [12].

This may result from old DNA-mediated duplication events followed by speciation events without significant local genome rearrangements.

Waga et al. (2007) used such concepts to simulate sympatric speciation, but without the Penna aging model.