B11 Measuring biodiversity

What leads to a more resilient food web?

• High complexity

• Low complexity

• High simplicity

• Having a few very abundant species

Which of the following is responsible for the most extinctions?

• Habitat loss

• Climate change

• Persecution

• Change in the abiotic environment

What conditions might be different along edges compare to fragment interior?

• Temperature

• Light

• Wind

• All of the above

Why is habitat fragmentation a concern?

• Movement between fragments might not be possible

• The fragment interior conditions are different

• The fragments are always too small

• The fragments often lack key resources

Which of the following is not one of the levels of biodiversity?

• Function

• Composition

• Structure

• Complexity

True or false: the levels of biodiversity can be separated

• True

• False

What size island would you expect to have a lower total number of species?

• Small

• Medium

• Large

What other factor affects the number of species on an island?

• Proximity to the mainland

• Temperature

• If the water around is fresh or salty

• The latitude

Species richness is the

• Number of species

• Abundance of each species

• Type of species

• Biodiversity of species

Species evenness is the

• Number of species

• Abundance of each species

• Type of species

• Biodiversity of species