Sentence examples for low speciation from inspiring English sources

Because extinction rates during the Frasnian crisis interval do not exceed background rates, the dramatic biodiversity loss is attributable to anomalously low speciation rates not high extinction rates.

The low diversity of benthic polychaetes observed in the northern zone can probably also be attributed to a low speciation rate, due to the low differentiation of niches (i.e., low diversity of microhabitats) observed in this zone with respect to the zone south of 41°S, which would function as a biological mechanism determining local-scale diversity [433].

The low speciation rate seen at this recent time point could represent the speciation/population boundary.

For example, angiosperms are highly diversified while gymnosperms have experienced a very low speciation rate [ 72].

Results suggest that anomurans diversified under low speciation rates with two major changes in the tempo of diversification.

Conifers have high levels of genetic diversity within population but experience low nucleotide substitution rates and low speciation rates.

Where two neighbouring "interspecific" and "intraspecific" supports are low, the speciation-coalescence transition is blurred.

ZVS concentrations in the pool (148 nmol L-1) were too low to allow speciation or isotope analysis.

Thus, in higher-level taxonomic groups with relatively low rates of speciation, we may expect elements of stasis (see discussion: Gould 2002, p. 936; Cavalier-Smith 2006, p. 999; and stasis in ecological assemblages: DiMichele et al. 2004).

The extinction of stem lineages could also explain the low number of speciation events detected in most stem branches.

Does this mean that one would not be able to systematically relate the extent, or lack, of young TE families to high or low levels of speciation?