In spite of the varying degrees of regional extinction or present connectivity between intermediate populations, all these examples are natural demonstrations of the continuum between population- and species-level divergences.
"A quantitative, physiology-based model of the ascending arousal system is developed, using continuum neuronal population modeling, which involves averaging properties such as firing rates across neurons in each population.
In models of competition in which space is treated as a continuum, and population size as continuous, there are no limits to the number of species that can coexist.
With an increasing body of prevalence information across regions (states), where concomitant indoor pollution measurements are being made, it may be possible to increase the resolution of the association between biomass use and COPD prevalence across a continuum of population exposures.
Author's response: I agree, there is nothing special about the level of species and a continuum from populations to species most probably exists.
The long disagreement over species concepts is the best demonstration of such a continuum between populations, at a proximal scale, to the ultimate extreme of reproductively isolated species [ 2].
Rose developed the concept of CVD risk as a continuum in a population and showed that all pathophysiological factors were continuously distributed in a population [ 34].
Appropriate use of generic measures in disease specific populations depends on whether the instrument covers the relevant domains, with an appropriate domain continuum, for the population's disease.
"If you could go back in a time machine and sample Africa 30,000 years ago, there must have been a population continuum from Ethiopia to southern Africa, a sparse population because they were all foragers, but one that must have had a common ancestor," Dr. Underhill said.
