"more populations" is correct and usable in written English.
You can use it to refer to a plurality of groups or individuals, such as when discussing population growth or studies of different populations. For example, "Researchers are studying the impact of education on more populations than ever before."
In other caves not far away, there are more populations of the same species, also blind.
When two or more populations of a terrestrial animal group are found in vastly separated parts of the world, two explanations are most often proposed.
There are many more populations of non-adversarial countries which have been subjected to the same type of mass surveillance net by the NSA: indeed, the list of those which haven't been are shorter than those which have.
In order for the Florida panther to qualify for de-listing under the Endangered Species Act, there must be at least two more populations of two hundred and forty animals each outside of their current habitat in southern Florida.
As the genes of more populations are studied, a more-detailed picture of past human population movements and integrations around the world will emerge.
A hypothesis test can be performed on parameters of one or more populations as well as in a variety of other situations.
When two or more populations were considered, the divergence time could also be derived.
Every so many cycles three or more populations are also recruited into an oscillatory mode.
Makkah had more populations than Riyadh, while the VWC in Makkah were less than 20% of Riyadh (Fig. 4).
It can be used to determine whether two (or more) populations are similar/homogeneous in a characteristic.
We consider estimation of diagnostic-test sensitivity and specificity in the following settings: (i) one test in one population, (ii) two conditionally independent tests in two or more populations, (iii) two correlated tests in two or more populations, and (iv) three tests in two or more populations, where two tests are correlated but jointly independent of the third test.
