When might an increase in biodiversity lead to a decrease?

An increase in biodiversity usually leads to an increased stability, but in the case of an invasive species it would lead to a decreased stability.

What does increased biodiversity lead to?

Greater biodiversity in ecosystems, species, and individuals leads to greater stability. For example, species with high genetic diversity and many populations that are adapted to a wide variety of conditions are more likely to be able to weather disturbances, disease, and climate change.

What causes diversity to decrease?

Biodiversity, or the variety of all living things on our planet, has been declining at an alarming rate in recent years, mainly due to human activities, such as land use changes, pollution and climate change.

How does a decrease in biodiversity impact an ecosystem?

A decrease in biodiversity causes a decrease in ecosystem stability, because a change to one organism will have a greater impact on the entire ecosystem. With greater biodiversity, the loss of one type of organism could be moderated by the adaptation of other organisms to fill its role.

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Does biodiversity decrease near the equator?

This idea is also referred to as the latitudinal diversity gradient, meaning that as you move from the equator towards the poles, diversity lessens. … That the are is relatively stable in terms of environment when compared to polar regions has also been suggested as a reason for increased biodiversity at the equator.

What are some examples of biodiversity loss?

On this page:

  • Massive Extinctions From Human Activity.
  • Declining amphibian populations.
  • Reptiles threatened by climate change, deforestation, habitat loss, trade.
  • Dwindling fish stocks.
  • Declining Ocean Biodiversity.
  • Inland water ecosystems.
  • Loss of forests equates to a loss of many species. …
  • Misuse of land and resources.

Where is biodiversity loss happening?

Micronesia and Polynesia. Called the “epicenter of the current global extinction,” by Conservation International, this smattering of more than 4,000 South Pacific islands is at risk from both local human activity and global climate change. Humans settled on these islands between 2,000 and 3,000 years ago.

Why might an increase in biodiversity lead to a decrease in the stability of an ecosystem?

The organism that is added will compete for food resources with an existing organism. This could possibly lead to competitive exclusion. … A decrease in biodiversity causes a decrease in ecosystem stability, because a change to one organism will have a greater impact on the entire ecosystem.

How can an increase in biodiversity lead to an increase in ecosystem stability?

How can an increase in biodiversity lead to an increase in ecosystem stability? … An increase in the biodiversity of an ecosystem leads to an increase in its productivity. T. Ecosystems with greater biodiversity have an increased stability.

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How does biodiversity loss affect diversity?

Biodiversity loss can have significant direct human health impacts if ecosystem services are no longer adequate to meet social needs. Indirectly, changes in ecosystem services affect livelihoods, income, local migration and, on occasion, may even cause or exacerbate political conflict.

Why does biodiversity decrease towards the poles?

Speciation is generally a function of time and environmental stability, so if conditions are too harsh, it is difficult for the species to survive and adapt. This results in decrease in biodiversity towards the poles. Species diversity decreases as we move away from the equator towards the poles.

What does less biodiversity mean?

Likewise, biodiversity loss describes the decline in the number, genetic variability, and variety of species, and the biological communities in a given area. This loss in the variety of life can lead to a breakdown in the functioning of the ecosystem where decline has happened.

Why does biodiversity increase towards the tropics?

The higher temperatures in the tropics cause higher rates of metabolism, ecological dynamics and coevolutionary processes, which generate and maintain higher biodiversity.