The phrase "ample variation" is correct and usable in written English.
It can be used to describe a significant amount of diversity or differences in a particular context, such as research, art, or data.
Example: "The study revealed ample variation in the participants' responses, indicating a wide range of opinions on the subject."
Alternatives: "considerable diversity" or "substantial variation".
The action is reminiscent of an elliptical machine, but feels also somewhat like a stair-climber, and wore me out surprisingly quickly, with ample variation between low- and high-intensity settings.
Rice grain Zn concentrations ranged from 15.9 to 58.4 mg kg−1 (Graham et al. 1999), suggesting ample variation for this trait that might be exploited through conventional breeding.
Therefore, individual populations showed ample variation in the degree of pollinator sharing among individual plants, with plants in some populations exhibiting a high overlap of pollinator visitors.
Since pollinators mediate the mating system of the individuals by pollen transfer, this means that there exists ample variation among populations in the potential for pollen flow through the population and, presumably, the sizes of individual genetic neighbourhoods.
Variation in this network property indicates ample variation among populations in the potential for assortative mating- i.e., clusters of individual plants that tend to mate among themselves more frequently.
While domesticates usually have reduced effective population sizes relative to their ancestral populations, there still remains ample variation for selection to act upon.
In contrast, the price to operate an internal combustion engine vehicle has had much ample variations, costing more than per gallon during the 1979 energy crisis, then had a couple of lows with prices at less than during 1999 and 2001, only to climb and reach a maximum of more than before the beginning of the 2007 2009 financial crisis, by early 2012 has fluctuated around.
It is known that in vitro germination cannot fully substitute for in vivo germination, with germination percentages showing ample variations [ 28].
Recent reviews of published literature suggest that the prevalence of pain in advanced cancer is about 70% with ample variations according to the cancer type and disease stage [ 2].
Overall, this method provides an efficient means of isolating predominantly single-copy loci from both low and high-copy gene families, providing ample nuclear variation for reconstructing species-level phylogenies in non-model taxa.
The results obtained in this work contribute to the growing perception of recombination not as fixed feature of the genome of a species, but as a phenotype with ample genetic variation.
