Biodiversity in Ecosystems

Species richness . . .

• is where a species aquires precious minerals

• is a measure of the number of unique species compared to the total number of species present

• involves both the number of species present and the evenness of species relative to one another

• involves lots of species who share resources with each other

Species diversity (SDI) . . .

• is the probability that two individuals randomly selected from a sample will belong to different species

• is the probability that two individuals randomly selected from a sample will belong to the same species

• is just the evenness of species in relation to one another

• is the same as species evenness

True or false: vegetation zones are very similar to ecozones

• True

• False

Which is not an example of a terrestrial biome

• Australia

• Tundra

• Grassland

• Rainforest

Vertical stratification is:

• seen in every biome/ecosystem

• impacts light availability

• is a down-up classification system

• is a microhabitat

True or false: freshwater ecosystems are very similar to marine ecosystems

• Truen

• False

The Littoral zone includes:

• muddy flats

• intertidal zone

• all of the above

• mangrove swamps

What is the species richness?

• 1.265

• 2.422

• 4

• 1.125

What is the species richness?

• 4

• 2

• 1.265

• 0.548

Which of the two sets would you predict to be more diverse? Explain.