What are some density dependent factors in the tundra?

This has become a problem world wide. Density-independent factors occur independently of the density of the population. In the tundra these factors would include: temperature, permafrost, wind, and rain.

What are density dependent and density-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.

What is density dependent factors?

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 are the limiting factors of the tundra?

In the tundra these factors would include: temperature, permafrost, wind, and rain. Because the tundra is the coldest biome, it limits the number of species that can survive there. The four limiting factors are fire, temperature, the amount of nutrients in the soil, and sunlight.

How does the sun affect the density of the tundra?

Another density independent factor is the amount of sunlight. Depending on the latitude, the Sun can remain below the horizon for up to 2 months, leaving the Arctic tundra in darkness. Although the sun remains in the sky 24 hours a day during the summer, it stays close to the horizon and provides only low intensity sunlight.

How are density dependent and independent limiting factors related?

The latter are referred to as density-independent factors. Density dependent limiting factors are related to living organisms while density-independent limiting factors are related to the environment. Density dependent limiting factors cause the per capita (per individual) growth rate of a population to change as the population gets larger.

What are the limiting factors in the tundra?

Density-dependence generally regulates populations within ecosystems that have many species, if they are not stressed by physical conditions. This is not typically true of the tundra. Its extreme climate reduces the number of species that successfully survive there.

Can a density dependent factor be a negative factor?

Only Density dependent factors do that A is correct. Any factor, density dependent or independent, can be either beneficial or negative. This all depends on the population being affected. Some density independent factors, such as hurricanes, help some species while they hurt other species.