"population nuclei" is correct and can be used in written English.
You could use it when referring to a group of people who share a common identity and inhabit the same region. For example, "The capital city of this country is one of the main population nuclei."
Therefore, the sub-watersheds with relatively high anthropogenic impacts are those with a high density of urban settlements and rural population nuclei.
Despite being one of the most active volcanoes in El Salvador, San Miguel is surrounded by important population nuclei and infrastructures.
They created across Iraq today, small population nuclei which they felt to be entitled to declare their independence one from the other.
This abundance is not uniform and tends to concentrate in "population nuclei", suggesting that it is difficult to accurately estimate population densities when extrapolating from a small area (from various studies) to a large area.
Female home ranges overlap less than those of males, although localized concentrations, or "population nuclei", tend to form in some areas, where the sex ratio favors females to males by three or four to one at the nucleus core.
To determine total migration distance for each cell population, nuclei of seventy-five cells (25 each from three independent experiments) migrating at the wound edge were tracked using the ImageJ (National Institutes of Health, Bethesda, MD) Manual Tracking plugin.
The Alborz landscape hosted the larger population nucleus and majority of breeding occurrences.
R. monosperma displays an exponential, invasive-type expansion trend, presenting a mean annual coverage increase of 15% and a mean lateral spread rate of 65.5 m yr−1 from the original population nucleus to the Western and Eastern ends of the study area.
According to the United States Census Bureau, "the general concept of a metropolitan area is that of a large population nucleus (one urbanized area of 50,000 or more) with adjacent communities having a high degree of social and economic integration with that core".
Any ZIP codes in areas with population nucleus of 50,000 up to 1 million were designated as 'Urban'.
Intensity-weighted frequencies were collected in classes with 250 nm width as percentage of the total given signal in a nucleus and the averages over the population of nuclei were calculated.
