Parts of the Ecosystem ECOSYSTEMS An ECOSYSTEM must

ECOSYSTEMS §An ECOSYSTEM must provide what an organism needs to survive, or the organism

An Organism and Its Environment Habitat: Place where organism lives which is determined by

LIVING THINGS AND THEIR ENVIRONMENT Environment– all the living and nonliving things with which

What is Ecology? § Study of the interactions between organisms and their environment

ECOSYSTEMS • The living parts of an ecosystem are called BIOTIC factors • Examples:

ECOSYSTEMS §The non-living things in an ecosystem are called ABIOTIC factors §Examples : water,

Organization in the Environment § Ecologists have arranged the environment in different levels Organism

The 5 Levels: #1 Organism § 1. An individual is a single organism. Ex:

The 5 Levels: #2 Population A population is a group of individuals of the

The 5 Levels: #3 Community A community consists of all of the populations of

The 5 Levels: #4 Ecosystem An ecosystem is made up of a community of

The 5 Levels: Level #5 Biosphere The biosphere is the part of Earth where

ENVIRONMENTAL ORGANIZATION § Biosphere - the entire Earth § Animals & plants adapt to

Salt Marsh Ecosystem § Organism- egret, Seaside sparrow, Periwinkle snail, oyster, Laughing gull §

Biotic and Abiotic Factors § Biotic: Laughing gulls, seaside sparrow, codgrass, snail, algae, jellyfish

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Parts of the Ecosystem

ECOSYSTEMS §An ECOSYSTEM must provide what an organism needs to survive, or the organism must move, adapt, or die. §To stay alive, organisms need § 4 things: § Energy (food) § Water § Oxygen § Living space

An Organism and Its Environment Habitat: Place where organism lives which is determined by climate and adaptations.

LIVING THINGS AND THEIR ENVIRONMENT Environment– all the living and nonliving things with which an organism interacts. All the living and nonliving things in an environment are interconnected. If one factor is affected another factor is thrown off balance. Nature is always trying to stay in balance.

What is Ecology? § Study of the interactions between organisms and their environment

ECOSYSTEMS • The living parts of an ecosystem are called BIOTIC factors • Examples: trees, plants, flowers, insects, animals

ECOSYSTEMS §The non-living things in an ecosystem are called ABIOTIC factors §Examples : water, rocks, soil, air, temperature, wind, carbon dioxide, nutrients, sunlight

Organization in the Environment § Ecologists have arranged the environment in different levels Organism Population Community Ecosystem Biosphere

The 5 Levels: #1 Organism § 1. An individual is a single organism. Ex: an alligator, a human, an oak tree

The 5 Levels: #2 Population A population is a group of individuals of the same species in the same area. Ex: group of alligators, herd of deer

The 5 Levels: #3 Community A community consists of all of the populations of different species that live and interact in an area.

The 5 Levels: #4 Ecosystem An ecosystem is made up of a community of organisms and its abiotic environment

The 5 Levels: Level #5 Biosphere The biosphere is the part of Earth where life exists

ENVIRONMENTAL ORGANIZATION § Biosphere - the entire Earth § Animals & plants adapt to best survive in the conditions of each Earth region. These regions are called the biomes.

Salt Marsh Ecosystem § Organism- egret, Seaside sparrow, Periwinkle snail, oyster, Laughing gull § Population- Laughing gull, Codgrass § Community- Sparrows eat the crabs, algae grows on grass, snail uses grass as shelter and protection § Ecosystem- how does temp. , precipitation, soil affect the organisms? , river brings in nitrogen which helps the algae grow § Biosphere- where all life lives

Biotic and Abiotic Factors § Biotic: Laughing gulls, seaside sparrow, codgrass, snail, algae, jellyfish (any of the animals or plants) § Abiotic: sunlight, river (water), temperature, soil, rain (weather), nutrients from the nitrogen