Exam 9: Sustaining Biodiversity: the Ecosystem Approach

Using the graph pictured below that shows the tons of cod catch in the North Atlantic from 1900 on, match the appropriate letter with the description given. -At what point on the graph would it have been most beneficial to implement sustainable fishing practices to preserve the cod fishery?

A helpful, but somewhat more expensive way of controlling unwanted vegetation such as invasive plants is short-term trampling by large numbers of livestock.

Millions of trees are cut down in North, Central and South America to make ultra-soft toilet paper.

Sylvia Earle

Summarize the challenges we face in protecting marine biodiversity. For each item, present a brief explanation. Further, briefly explain which challenge you personally think is the worse threat and why.

The United States is the clear leader in total area of forests approved by the Forest Stewardship Council.

Explain both the positive and negative aspect of the Smokey the Bear educational campaign.

E.O. Wilson said we might as well go ahead and log the world's remaining old growth forests.

Sustainable management and harvesting of forests is certified by the

Although there are currently more than 4,000 marine protected areas (MPA's) worldwide, nearly all of these sites still allow

The Green Belt Movement, founded by Wangari Maathai, combines tree planting and preservation with

According to Stephen Saunders, former deputy assistant Secretary of the Interior, the greatest threat the national parks have ever had is

____________________ is a non-tree plant fiber from a rapidly growing woody plant that yields more paper pulp per area of land than tree farms do.

List three things that can be done to restore tropical forests so they can be used more sustainably.

All of the following are examples of economic services that forests provide except:

All of the following are approaches to helping ecosystems recover except

Using the graph pictured below that shows the tons of cod catch in the North Atlantic from 1900 on, match the appropriate letter with the description given. -What area on the graph represents a slight recovery in the collapsed fishery?

Removing dams and allowing rivers to flow freely can help restore biodiversity.

Conservation biologists want the protection of at least ____ of the Earth's land.

The United States is the only country that has set aside about 25% of its total land area for nature reserves and national parks.