The phrase "a large amount of variation" is correct and usable in written English.
It can be used when discussing differences or changes in a particular context, such as data, behavior, or characteristics.
Example: "The study revealed a large amount of variation in the participants' responses to the survey questions."
Alternatives: "a significant degree of variation" or "a considerable amount of variation."
A large amount of variation and the greatest transgressive segregation was observed for the trait of AS.
Species-specific qPCR of several bacterial species revealed a large amount of variation in target abundance between individual fish.
There was a large amount of variation, with a coefficient of variation (CV) for RNC of 86% and for NC of 72%.
With our within-individual empirical approach, we revealed a large amount of variation between individuals with respect to the associations between exploration and commitment processes.
Following multivariate statistical analysis, a large amount of variation in community composition was explained by soil pH, which is remarkable given the relatively small size of the sampling area and minor differences in pH.
For all families, we detected a large amount of variation of K2p nucleotide distances ranging from 1.43 fold for the Ty1-copia element family OSR_8 to 4.00 fold for the Ty3-gypsy RIRE10 family (Table 3): this result indicates that whatever the mechanism(s) causing mutations is, it does not appear to be family specific.
However, we found that the SPPB explained a larger amount of variation in the ICECAP-O score than the EQ-5D-3L score.
Our dynamic model results show that lake depth and ice cover duration to be the most important variables within the model set and it had a moderate fit (m R = 0.52, c R = 0.84) with a larger amount of variation explained by the combined fixed and random effects.
When we considered three groups: boreal forest, Oregon, and S. Dakota, a large amount of genetic variation was explained among groups and almost no genetic variation was explained among sites within group (Table 1).
The results of the AMOVAs based on both the mtDNA and microsatellite data showed a large amount of molecular variation within populations (>94% in all analyses) and low or no variation at the higher hierarchies (i.e., between species or habitat types, between populations within species/habitat types) (Table 2).
A large amount of genetic variation that is present but invisible at the phenotypic level (i.e. cryptic variation) enables populations to adapt faster to environmental change (Le Rouzic and Carlborg 2008; Wagner 2011, 2012; Masel 2013).
