"monitor variation in" is correct and usable in written English.
You can use it when you want to express that something is being watched or observed carefully for any changes or differences. For example: "The research team is monitoring variation in the vole population over the next year."
CDC surveys also monitor variation in prevalence estimates among different ethnic communities.
Real-time analysis of volatile organic compounds (VOCs) in exhaled breath by PTR-MS has been established to monitor variation in VOCs with time 27– 31.
It may thus be important to monitor variation in the frequency of different life-history forms for appropriate interpretation of population status and management of ecological diversity.
We wish to emphasize that genetic, phenotypic, and ecological data have to be fully integrated in order to monitor variation in multilocus genotypes, cryptic populations, phenotypes, and ecotypes besides the monitoring of classically recognized species.
The principal of the geNorm algorithm is that from an initial group of candidate reference genes tested across all the types of tissue studied and the experimental conditions, the expression ratio of the two reference genes that display the most similar expression identified these genes as the best choice to monitor variation in test gene expression [ 11].
Statistical process control (SPC) is widely used in process industries to monitor variations in process attributes.
The service demonstrates the potential of the C-band observations to monitor variations in soil moisture.
We will show the accuracy with which this pixel can be used to monitor variations in the focal plane array.
Results of the present study indicate that the procedure used is a reliable and non-invasive method to repeatedly monitor variations in testicular endocrine activity in this species.
The total height of HA column (Fig. 2) representing the total area under the curve of HA chromatogram, can be used to qualitatively monitor variations in the concentration of HA.
Average laser powers were measured every 10 seconds by power-meters (PD 300, Spiricon GmbH, Ahrensburg, Germany) to monitor variations in the illumination intensity during the experimental acquisition.
