In the case of the size increase in the yellow-bellied marmot, growth rates explained 52% of size changes, but selection explained only 3% of the variation, providing little support for an evolutionary response (Ozgul et al. 2010), although it cannot be excluded.
The variations provided by the blended course design served well in meeting challenges set in the learning outcomes and learning standard, and the learning environment was found to be enjoyable for the students.
Kay Rogers, another mounds supporter, remained at ground level and allowed that the topographical variation provided by the mounds, while distinctive in the neighborhood, was not, in the scheme of things, so great.
Hall identifies the effects of the policy on the treated municipalities by exploiting the exogenous variation provided by a set of municipality characteristics.
The magnitude of the gradient increases sensibly when they use the exogenous variation provided by compulsory schooling.
As in Fredriksson et al. 2013, the Browning and Heinesen 2007 study relies on the exogenous variation provided by a maximum class size rule.
The genetic variation provided by gene duplication may be as important for adaptive evolution as replacement substitutions or changes in regulatory DNA [ 2, 4].
Indeed, the genetic variation provided by microsatellites may be advantageous and may vary (and evolve) independently from otherwise low average nucleotide substitution rates (Kashi and King 2006).
Here we show that all homopolymeric guanine tracts over seven bases long in the C. jejuni genome have variable length, and that this variation provides the genetic basis for adaptation during serial passage in a mouse model of campylobacteriosis.
The analysis of the UM3 shape variation provided a balanced contribution on the first two principal axes (PC1 = 27.0% of total variance and PC2 = 22.7%).
