Ecoregion Overview

Who created the Life Zone system?

• Eric Dinerstein

• Robert Harding Whitaker

• Leslie Holdridge

• David Attenborough

What year was the Life Zone system created?

• 1980

• 1960

• 1947

• 2000

How many ecoregions did the WWF classify the world into?

• 1525

• 867

• 426

• 232

How many terrestrial ecoregions are there according to the WWF?

• 1525

• 232

• 426

• 867

What does the WWF define as an ecoregion?

• A region with only one type of ecosystem

• A conservation park

• A large area of land or water with a distinct assemblage of natural communities

• A small area with unique species

What are the global 200?

• 200 ecoregions of high priority for conservation

• 200 endangered species

• 200 scientists

• 200 well-managed parks

Who was the lead scientist at the World Wildlife Fund for most of the past 20 years?

• Leslie Holdridge

• Eric Dinerstein

• Robert Harding Whitaker

• David Attenborough

What criteria did Leslie Holdridge's Life Zone system use for classifying ecosystems?

• Soil type and water availability

• Vegetation and animal species

• Temperature and precipitation

• Latitude, altitude, and humidity