Sentence examples for gradual diversification from inspiring English sources

However, other nuclear (9 12) and mitochondrial (13, 14) DNA studies propose an earlier, more gradual diversification, beginning within the Cretaceous 80 to 125 Ma.

It will also take considerable expertise to manage a gradual diversification from low-risk U.S.-denominated assets in a way that that does not put sudden and politically touchy downward pressure on U.S. Treasuries and the U.S. dollar in world markets.

The relative role of precipitation and the biogenic processes that support it are also likely to have changed with the gradual diversification of life forms.

First, PATHd8 and Dating5 support bursts of speciation (many lineages arising almost simultaneously), whereas the remaining methods generally support more gradual diversification.

This suggests that during the course of mammalian evolution, snoRNAs have undergone gradual diversification from their ancestral functions in translation, which may date to early stages in cellular evolution (Omer et al. 2000; Penny et al. 2009).

However, different selection forces and evolutionary constraints appear likely to restrict the evolution of the different BTV genome segments, with reassortment, genetic drift and founder effects contributing to the gradual overall diversification of individual BTV strains [26].

As a result, generations of arrowheads might arise as adaptations, showing the gradual refinement and diversification that is characteristic of human cultural traditions (Richerson and Boyd 2005: 115).

Subsequent Oligocene cooling and breakup of boreotropical flora ended New-Old World migration and caused a gradual decrease in diversification rate in Burmanniaceae.

A model of gradual change in diversification rate (model B, γ = 1.65, AIC = 360.15) was chosen over model A (AIC = 371.05) and model C (AIC = 391.02) as best fit of the empirical LTT plot using AIC.

The necessity to adapt and evolve new R-gene specificities in the centre of diversity of the late blight pathogen has apparently fundamentally shaped the evolutionary dynamics of the R2 locus in the Mexican species, while the lack of this pressure has resulted in a more gradual pace of diversification in the South American derived species.

Interestingly, gradual gene decay or diversification was observed in the order of LIIIA, LIIIC and LIIIB.