Exam 8: Sustaining Biodiversity: the Species Approach

Alien species thrive in new ecosystems because they have long generation times.

Birds contaminated with ____________________ were unable to successfully reproduce because of excessively fragile egg shells.

Match the plant or animal with its correct designation. -black-footed ferret

The Endangered Species Act of 1973

Would you support legislation that would allocate monetary compensation to land owners to help protect endangered species that occur on their property? Why or why not?

Match the plant or animal with its correct designation. -Pacific yew tree

Pollution from human activities primarily affects human health; its effect on the environment is small.

For the list of animals, select the characteristic that would most likely contribute to its possible premature extinction. -elephant seal

Animals listed as endangered or threatened cannot be ____ in the United States.

Bush meat is a very safe and disease-free source of protein.

The United States has signed the international treaty called CITES but has not signed/ratified the treaty called ____________________.

Match the plant or animal with its correct designation. -European starling

In addition to deforestation of tropical forests, which of the following are causes of species extinction?

The common sense thought of "better safe than sorry" when applied to preventing species extinction is called the____________________.

Which group of organisms currently is in the most jeopardy, based on the percentage of members that are endangered?

Conservation biologists use the acronym ____________________ to summarize the most important secondary causes of premature extinction.

It can be said that, of the species now listed under the Endangered Species Act, more than half have populations that are either ____________________ or ____________________.

All of the following would strengthen the Endangered Species Act except

_____ have estimated that up to 25% of the world's current animal and plant species could be gone by 2050, and 50% could be gone by the end of the century.

Match the plant or animal with its correct designation. -salt cedar