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Biodiversity and Extinction

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Questions and Answers

What percentage of birds are facing extinction?

10%
25%
13% (correct)
20%

Which of the following is an example of interspecific interactions?

Competition among species (correct)
Genetic erosion
Negative frequency dependence
Species asynchrony

What is the main cause of extinction in the tropics?

Biological invasions
Habitat loss (correct)
Pollution
Overexploitation

What is the term for the decrease in productivity of some species being compensated by the increase in productivity of other species?

Species asynchrony (A) Signup and view all the answers

What is the relationship between the density of people and species threats?

There is a relationship, but it's not always consistent (A) Signup and view all the answers

What is a potential consequence of low genetic diversity in a population?

Reduced resistance to disease (B) Signup and view all the answers

What is the main threat to biodiversity in the oceans?

Overfishing (C) Signup and view all the answers

According to the co-adaptation hypothesis, what is the relationship between hominin presence and extinction rates?

Lower extinction rates in areas with longer hominin presence (C) Signup and view all the answers

What is the term used to describe the phenomenon where individual benefits lead to a collective loss?

Tragedy of the commons (A) Signup and view all the answers

What is the relationship between overfishing and overexploitation of wildlife?

When there is enough fish, overexploitation of wildlife decreases (C) Signup and view all the answers