Examples of density-dependent factors that affect population growth include
predation, disease, and competition
.
Which factor is an example of a density-independent factor for population growth?
One example is
competition for limited food among members of a population
. Density-independent factors affect per capita growth rate independent of population density. Examples include natural disasters like forest fires.
Which of the following is regarded as a density-dependent factor in the growth of natural populations?
Density-dependent factors include
disease, competition, and predation
. Density-dependant factors can have either a positive or a negative correlation to population size. With a positive relationship, these limiting factors increase with the size of the population and limit growth as population size increases.
What is density-dependent population growth?
Density-dependent growth: In a population that is already established, resources begin to become scarce, and competition starts to play a role. We refer to
the maximum number of individuals that a habitat can sustain as the carrying capacity of that population
.
What are examples of density-dependent?
Density-dependent factors include
competition, predation, parasitism and disease
.
What are 4 examples of density-dependent limiting factors?
Density-dependent limiting factors include
competition, predation, herbivory, parasitism and disease, and stress from overcrowding
.
Which of the following is an example of a density-dependent factor quizlet?
A disease
is a good example of a density-dependent factor. If a population is dense and the individuals live close together, then each individual will have a higher probability of catching the disease than if the individuals had been living farther apart.
What are 3 density independent factors?
There are many common density independent factors, such as
temperature, natural disasters, and the level of oxygen in the atmosphere
. These factors apply to all individuals in a population, regardless of the density.
Which is the density independent factor?
Density-independent factor, also called limiting factor, in ecology,
any force that affects the size of a population of living things regardless of the density of the population
(the number of individuals per unit area). … The relative importance of these factors varies among species and populations.
What two factors can both cause a population to increase?
The two factors that increase the size of a population are
natality
, which is the number of individuals that are added to the population over a period of time due to reproduction, and immigration, which is the migration of an individual into a place.
How do density-dependent factors affect a population?
Density-dependant factors may influence
the size of the population by changes in reproduction or survival
. … This in turn led to a decrease in per capita birth rate, a limitation in population growth as a function of population density. Density dependant factors may also affect population mortality and migration.
What is density-dependent and independent factors?
Density-dependent factors have
varying impacts according to population size
. … Density-independent factors are not influenced by a species population size. All species populations in the same ecosystem will be similarly affected, regardless of population size. Factors include: weather, climate and natural disasters.
Why is disease a density-dependent factor?
density-dependent factor Any factor limiting the size of a population whose effect is dependent on the number of individuals in the population. For example, disease will
have a greater effect in limiting the growth of a large population
, since overcrowding facilitates its spread.
Which is not a density-dependent factor?
The correct answer is
Flooding
. A density-dependent, growth limiting factors are of four types.
Is human activity density-dependent?
Density dependent factors can
only affect
a population when it reaches a certain density. For example: natural disasters, temperature, sunlight, human activities, physical characteristics and behaviours of organisms affect any and all populations regardless of their densities.
What is density of a population?
Population density is
the concentration of individuals within a species in a specific geographic locale
. Population density data can be used to quantify demographic information and to assess relationships with ecosystems, human health, and infrastructure.
