Originally Posted by
Summit
That is NOT what "carrying capacity" means in any context.
Disease due to overpopulation in the wild is directly related to less resilience/higher susceptibility due to malnutrition and stress, and potentially, increased contacts between carriers.
In human populations "overpopulation" is something ENTIRELY different than it is for wild animals because we have science, technology, medicine, cities, global air travel, modern agriculture etc. These same things influence the spread of novel pathogens.
A disease that takes out 0.2% or even 2% of the total population is not "population control" with respect to managing "carrying capacity" unless it is a permanent fixture in annual mortality (and perhaps many endemic pathogens each averaging such mortality rates over time). In human society an epidemic or pandemic of this nature causes consternation, grief, and temporary disruption in society within a generation.
The Black Death: Plague and resulting famine/warfare wiping out 2/3 of the population of Europe, or various diseases wiping out 90% of the populations of North hand South America after European contact, that is a calamity on a scale that permanently alters the trajectory of culture and civilization for many generations.