ECOSYSTEMS Science 7 Habitat vs. Niche zProvides needs yFood yWater yShelter yGas used Food type and how it gets it Location of home burrow,nest,

ECOSYSTEMS

Science 7

Habitat vs. Niche

Provides needs Food Water Shelter Gas used

Food type and how it gets it

Location of home burrow,nest, forest

What eats it

Stability

Stability comes from the word stable. The suffix “ity” forms nouns from adjectives and means “the condition or quality of”.

Stability in systems means that over time the changes in a system cancel each other out. For example if something is added, it is later taken out.

The system must remain in balance.What happens if you keep removing and

never put back?

How would you restore balance to this system?

How would you restore balance to this system?

This is what happens when we take and don’t give back

Ecosystems

Many different habitats create an ecosystem.

Some ecosystems include forests, ponds, and streams.

Explain how some organisms can live in different ecosystems.

TYPES OF ECOSYSTEMS

POPULATIONSA group of the same

species living in the same place at the same time is a population.

Populations live in environments to which they are adapted.

COMMUNITIESA community of an

ecosystem is made up of all the populations that live in the same area.

The plants and animals that live together depend on each other to survive.

ANALYZE THIS!

Sometimes plants and animals are introduced into ecosystems that are not native to the ecosystem.

Can you name a plant or animal that lives in an ecosystem that you are familiar with and is not native to that ecosystem?

Predict what might happen if an animal from the jungle were introduced into a forest ecosystem.

ABIOTIC FACTORS OF AN ECOSYSTEM

SUNLIGHTAIRTEMPERATURESOILWATER

BIOTIC FACTORS IN ECOSYSTEMS

HABITATSThe environment

that meets the needs of an organism is called a habitat.

NICHESA niche is an

organism’s role or job in the environment.

Name an organism from the forest environment and describe its niche in that environment.

LIVING THINGS

Food Chain

ProducersGreen plants and

some protistsproduce their own food.

Consumerseat other living

thingsfor energy.

Decomposersfeed on wastes of

plants and animals oron their remains after they die.

Nichesor

Roles

SUMMARY

An environment that meets the needs of an organism is called a habitat.

An organism’s niche is its role within that habitat.

As organisms carry out their roles, they can affect both living and nonliving parts of that ecosystem.