by affecting the mortality rate
Space and food sources are density-dependent factors.
Cave-dwelling bats experiencing a disease outbreak with a high mortality rate could be suffering from White-nose Syndrome, a fungal infection that affects their skin during hibernation. This disease weakens the bats, leading to death from starvation, dehydration, or secondary infections, resulting in significant population declines within affected colonies.
An example of a density-dependent factor in the savannah could be food availability. As the population of animals in the savannah increases, competition for food resources also increases. This can lead to food scarcity, which can directly impact population size through decreased survival rates or increased competition among individuals for resources.
A density-independent factor for a flock of Canada geese on a large lake could be a severe weather event, such as a storm or extreme cold snap. These environmental conditions can impact the geese regardless of their population size, affecting their food availability, shelter, and overall survival. Other examples include habitat destruction or pollution, which similarly do not depend on the density of the geese population.
In 1927, Fredric Griffith concluded that bacteria could be transformed from harmless to disease-causing by introducing a factor that was not yet identified. This changing factor was eventually discovered to be DNA, the basis for all biological reproduction.
the climate
More predators so the population would decrease :(
Civilization leads to epidemics in a number of ways. Infection can be spread more rapidly because of population density, trade over larger geographic regions, and domestication of animals that could be carrying disease.
The wording of your question makes it unclear what you need to know.If you are asking what are some things that will control population growth and density. It could then easily be predators, climate, location, disease and food sources. etc etc etc
Migration can affect population distribution by causing the population of one area to increase while simultaneously decreasing the population of another. This can also cause one area to be more densely populated than another.
Abiotic factors refer to the non-living components of an ecosystem. An abiotic factor that can be a limiting factor for a coyote population is the lack of water, since it is essential for their survival.
False. Disease spreads faster in dense populations with close contact, regardless of the societal structure. Hunter-gatherer societies may have lower population density and more mobility, which could help limit the spread of disease compared to agrarian societies.