Sentence examples for high environmental variance from inspiring English sources

They showed that high environmental variance should depress heritability even when substantial additive genetic variation is present.

The high environmental variance for the bacteria positive SCS is possibly due to the nature of the pathogens (i.e. hosts may respond differently to infection by a pathogen or another) and the sinusoidal variation of SCC after infection, both of which would increase variation in the dataset.

For example, in a Drosophila selection experiment C layton and R obertson (1957) reported increased bristle number variance, which is consistent with the idea that genotypes associated with higher environmental variance have a greater chance of being selected under directional selection (H ill and Z hang 2004).

Theoretical studies and laboratory experiments have indicated that negative density-dependence in population growth may reduce the risk of extinction and increase population abundance of rare species during long periods of adverse environmental conditions, which are more likely to occur under high levels of environmental variance [14], [29], [30].

As a result of their older age and higher body mass, the inclusion of mice from generation F01 skews selection parameters, including the G-matrix, where it produces artificially high levels of environmental variance.

When the covariates were chosen to represent second born twins of primipara with one placental mass and who died neonatally, the unique environmental variance became extremely high (Fig.  3: Highest) and heritability became lower than that of the adjusted model (Fig.  4: Highest).

Allowing the covariance to change over time improved the fit (Table  1).> -wrap-foot> Additiveive genetic effects, D: Dominance genetic effects, C: Effects of common environment, E: Effects of unique environment For both the unadjusted and adjusted ACE model, the common environmental variance was higher than the genetic variance.

These differences resulted from both an increased additive genetic variance and a decreased environmental variance when grown at high density.

Consistent with the high genetic correlation between the mean and environmental variance for sleep duration, 95.6% of the SNPs overlapped between night sleep mean and CV E (Table  1).

There was less non-shared environmental variance (black bands) at higher levels of education in both genders as well, but the moderating effect of education was smaller.

There was also less shared environmental variance (dark gray bands) at higher levels of education, this time in both genders.