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?

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

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

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.

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