The phrase "an open population" is correct and usable in written English.
It can be used in contexts related to demographics, ecology, or social sciences to describe a population that is not restricted in terms of entry or exit.
Example: "In ecological studies, researchers often focus on an open population to understand the dynamics of species interactions and migration patterns."
Alternatives: "a free population" or "an unrestricted population".
He said: "It's an open population.
We established a large-scale field camera-trapping network to estimate tiger density, survival and recruitment in the Hunchun Nature Reserve and the surrounding area using an open population spatially explicit capture-recapture model.
"Conclusions that a particular individual is the biter and their dentition [the way teeth are arranged in the mouth] is a match when you are dealing with an open population are now understood to be scientifically unsound," Hales wrote.
This is not the case in an open population, since some future population members are immigrants.
This is the equivalent, in an open population, of the "even moment effect" described in Rice [23].
We derive an exact equation for directional evolution, essentially a stochastic Price equation with migration, that encompasses all processes, both deterministic and stochastic, contributing to directional change in an open population.
Recently in an open population-based program composed of 15 354 pregnant women in Colombia we applied a biopsychosocial risk model, which permitted us to identify pregnant women at high risk of preeclampsia.
We used the software Bayesian Serial Simcoal (BayeSSC) [79] to simulate temporal data under a closed population-bottleneck model and an open population-bottleneck model including ancient migration.
In order to verify these results we used the approximate Bayesian computation (ABC) approach [38] to test whether a closed single-population-bottleneck model (no gene flow), an open population-bottleneck model (gene flow following the period of minimum population size) or a constant-population-size model provided the best fit for our data.
In this paper, we describe patterns of reported non-consensual sex among women enrolled in an open population-based cohort in rural Uganda, from 1990 to 2008.
We applied an open-population Jolly-Seber model [41] to the mark-recapture data using the POPAN option in the program MARK [44] to estimate population size.
