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3. What is the main difference between a density-dependent limiting factor and a density-independent limiting factor Give examples of each?
The main difference between density-dependent and density-independent limiting factors is that density-dependent factors are influenced by the population size and can intensify as the population grows, such as competition for resources, predation, and disease. In contrast, density-independent factors affect population size regardless of density, such as natural disasters, climate changes, and human activities. For example, a density-dependent factor could be food scarcity in a crowded habitat, while a density-independent factor could be a hurricane that devastates an area regardless of how many individuals live there.
What is the density dependent factor in deserts?
Space and food sources are density-dependent factors.
A disease resulting in the deaths of one-third of a dense population of bats in a cave would be?
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.
What is a density dependent factor in the Savannah?
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.
In an ecosystem which is NOT a density- dependent limiting factor?
A non-density dependent limiting factor is one that affects a population regardless of its density. Examples include natural disasters like hurricanes or wildfires, which can drastically reduce populations without regard to their size. Other factors could include climate conditions or human activities such as pollution, which can impact populations indiscriminately. These factors can lead to significant changes in an ecosystem even when population densities are low.
Which is a density independent factor for a flock of Canada geese on a large lake?
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.
Who Concluded that bacteria could be transformed from harmless to disease by an unknown factor?
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.
What other factor could have caused a decrease in the hare population?
the climate
How does civilization lead to epidemics?
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.
What environmental factor could change a shrews population?
More predators so the population would decrease :(
What are the health programs designed to control the rapid growth population?
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
How might migration affect population density?
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.
