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Threats to Biodiversity: Habitat Loss and Degradation

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30 Questions

What is the result of habitat degradation?

Loss of species requiring large areas of habitat

What is habitat fragmentation?

Change in the shape and configuration of remaining habitat after habitat loss

What is the effect of habitat fragmentation on populations?

Small populations prone to extinction

What is a strategy to reduce the impact of habitat degradation?

Provide corridors to connect fragments

What is the result of overexploitation?

Resource exhaustion or extinction

What is the primary cause of terrestrial habitat loss?

Agriculture

What is the result of overgrazing in arid and semiarid lands?

Desertification

What is the process of clearing land of trees?

Deforestation

What is a strategy to reduce the impact of agriculture on biodiversity?

Increase productivity of existing agricultural land

What is an example of habitat loss in water systems?

Dredging

What percentage of birds are threatened due to invasive alien species?

30%

What is a consequence of the introduction of invasive species?

Major economic consequences for humans

What is an effect of climate change on ecosystems?

Altered patterns of precipitation and more extreme weather events

What happens to native species when invasive species are introduced?

They are unable to successfully compete against the invasive species

What is an example of multiple drivers acting together?

Tropical deforestation

What is the primary driver of biodiversity loss, according to the human population's impact on the environment?

The way we consume resources

What is the percentage of arid and semiarid lands that are currently occupied by rangelands?

70%

What is the estimated proportion of habitable land used for agriculture?

50%

What is the strategy to reduce the impact of deforestation on biodiversity?

Reforestation

What is the proportion of available freshwater resources used for agriculture?

3/4

What is a likely consequence of the introduction of an invasive species that leads to a decline in native species?

Native species become extinct due to lack of resources

What is a common outcome when multiple drivers act together in an ecosystem?

The ecosystem is more susceptible to threats

What is a consequence of climate change on plant populations?

Changes in distribution patterns

What is a common impact of deforestation on ecosystems?

Loss of native species

What is a consequence of the introduction of disease to an ecosystem?

Changes in ecosystem structure

What is the primary driver of habitat degradation and loss?

Agricultural activities

What is the consequence of habitat fragmentation on species populations?

Loss of species requiring large areas of habitat

What is the primary impact of overexploitation on ecosystems?

Resource exhaustion or extinction

What is a key strategy to reduce the impact of habitat degradation?

Maintain larger areas of habitat

What is a common driver of deforestation?

Agricultural activities

Learn about the threats to biodiversity, including habitat degradation, habitat fragmentation, and the loss of forests. Understand the impact of human activities on ecosystems and the importance of conservation.

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