Introduction to Ecosystems Ecosystem All of the living

Ecosystem • All of the living and nonliving things in an area that interact

Abiotic Factors Bio = “Life” A = “Not” Abiotic = “Not Life” = Nonliving

Precipitation (Rain or Snow) Shelter Sunlight Air Water ABIOTIC (nonliving) Factors Temperature Rocks, Soil,

Biotic Factors Bio = “Life” PRODUCERS Biotic = Living parts CONSUMERS DECOMPOSERS

PRODUCERS (Food Makers) DECOMPOSERS (Break down dead organisms, provide nutrients for producers) Biotic (Living)

Biotic/Abiotic Interactions Interact – when one thing has an effect on another thing

ABIOTIC & BIOTIC Ecosystem Interactions Organisms using air BIOTIC & BIOTIC Food Chains/Food Webs

First Level - Individual • Smallest level – only ONE organism

Second Level - Population • ALL of the members of the same species

Third Level - Community • ALL of the populations (or, all of the living

Fourth Level - Ecosystem • ALL of the living things + ALL of the

Levels of Organization Draw your own illustrations for each level! Individual (one organism) Population

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Introduction to Ecosystems

Ecosystem • All of the living and nonliving things in an area that interact for survival.

Organism: any living thing

Ecosystem

Abiotic and Biotic Interactions

Abiotic Factors Bio = “Life” A = “Not” Abiotic = “Not Life” = Nonliving parts

Precipitation (Rain or Snow) Shelter Sunlight Air Water ABIOTIC (nonliving) Factors Temperature Rocks, Soil, Minerals Weather and Climate

Biotic Factors Bio = “Life” PRODUCERS Biotic = Living parts CONSUMERS DECOMPOSERS

PRODUCERS (Food Makers) DECOMPOSERS (Break down dead organisms, provide nutrients for producers) Biotic (Living) Factors CONSUMERS (Food Eaters) Nature Recycles!

Interactions in Ecosystems

Biotic/Abiotic Interactions Interact – when one thing has an effect on another thing

Biotic/Abiotic Interactions

Biotic/Biotic Interactions

ABIOTIC & BIOTIC Ecosystem Interactions Organisms using air BIOTIC & BIOTIC Food Chains/Food Webs (breathing, flying) (organisms eating each other) Organisms using water Organisms using other organisms for shelter (drinking, swimming) (Your example 1) (Your example 2) (Your example 3) (birds living in trees) (Your example 1) (Your example 2) (Your example 3)

Levels of Organization

First Level - Individual • Smallest level – only ONE organism

Second Level - Population • ALL of the members of the same species

Third Level - Community • ALL of the populations (or, all of the living things)

Fourth Level - Ecosystem • ALL of the living things + ALL of the non-living things

Levels of Organization

Levels of Organization Draw your own illustrations for each level! Individual (one organism) Population (all members of 1 species) Community (all populations / all living things) Ecosystem (all living things + all non-living things)