Exam 16: Biological Resources

Amphibians merit attention because of precipitous declines in their populations occurring around the world. a) Discuss possible causes for the current status of current amphibian populations. b) What characteristics of amphibians (frogs) make them particularly important bellwether species? c) What environmental issues need to be addressed as signaled by the amphibians?

Poaching has led to the decline of all of the following species except:

An example of ex situ conservation is:

One problem with protecting vulnerable habitat areas as a means of conserving species richness is:

A component of in situ conservation that uses the principles of ecology to help return a degraded environment to a more functional and sustainable one is:

Which of the following is not a disadvantage associated with seed banks?

The current conflict between humans and elephants is based on:

Ecosystem diversity is:

Which of the following is an example of biotic pollution?

Compare and contrast the designations of threatened, endangered, and extinct species. Describe three human causes of species endangerment and/or extinction and explain which is the most threatening.

Which of the following statements about tropical rain forests is false?

The introduction of a foreign species onto an island is an example of:

Biodiversity hotspots:

Compare and contrast at least three goals, strategies, or focus used in wildlife management as compared to conservation biology.

Which of the following medicinal plants is correctly matched with its benefit to humans?

A species in imminent danger of extinction throughout all or a significant portion of its range is said to be:

The continuous, low-level extinction of species that has occurred throughout the history of life on Earth is known as:

Which of the following represents an unsuccessful captive-breeding and reintroduction program?

During the 19th and 20th centuries, many whale populations suffered:

Before attempting a reintroduction of captive-bred animals into the wild, biologists must