1. Finding Gold in a Costa Rican Cloud Forest
Golden toads
Lived in Costa Rica’s Monteverde cloud forest
First described in 1964; extinct by 1989
Talk About It Why is the extinction of the golden toad a global concern?

2. Ecology Economics of nature
Ch. 4 Population Ecology: Lesson
4.1 Studying Ecology
Ecology
Economics of nature
Relationship of animal to its nonliving and living environment

3. Levels of Ecological Organization
Ch. 4 Population Ecology: Lesson 4.1 Studying Ecology
Levels of Ecological Organization
Study of how organisms interact with each other & with their environments
Scientists study various levels of organization

4. Biotic and Abiotic Factors
Lesson 4.1 Studying Ecology
Biotic and Abiotic Factors
Biotic factors: Parts of an ecosystem that are living or used to be living
Abiotic factors: Parts of an ecosystem that have never been living
Did You Know? Decaying organisms are biotic factors as long as their structure remains cellular.

5. Specific environment where organism lives; its address
Lesson 4.1 Studying Ecology
Habitat
Specific environment where organism lives; its address
Provide resources
Anything needed to survive & reproduce
Ex. food, shelter & mates