Oikos: House and Ology: to Study

Scientific discipline in which the

relationships among living

organisms and the interaction the

organisms have with their

environments are studied.

An Ecologist is someone who

studies ecology.

The study of how living

organisms interact with other

living organisms. (Biotic)

The study of how living

organisms adjust to the non-

living factors in their

environment. (Abiotic)

Something that is

Living in an

environment.

Example: Animal or

Plant

Something that is NOT

living in a certain

environment.

Example: Water or Air

The interactions between

Biotic and Abiotic Factors

make up the environment.

The interactions between

Biotic and Abiotic Factors

take place in the Biosphere

The Biosphere is the portion of

Earth that can support life.

Plants

Animals

Fungi

Bacteria

Temperature

Soil

Water

pH

Salt Concentration

Air

“Organisms are adapted to surviving in

the abiotic factors that are present in their

natural environments. If an organism

moves to another location with a

different set of abiotic factors, the

organisms might die if it cannot adjust

quickly.”

In five sentences,

describe what you

would see if you

went SCUBA

diving. Explain if

they are Abiotic or

Biotic.

Ecology: Study of how living organisms interact

with their environment.

Ecologist: someone who studies ecology

Biosphere: the living portion of the Earth.

Biotic: Living factor of an environment

Abiotic: nonliving factor of an environment

Aquatic: A biotic/abiotic factor that is associated

with water. Ex: aquatic animals, aquatic plants,

aquatic environments

Biogeochemical cycles

Biosphere: The portion of the

earth that sustains life.

Biotic Factors: Animals, Plants,

Bacteria, Fungi

Abiotic Factors: water, pH,

temperature, sunlight etc.

A biogeochemical cycle is a repetitive process that

recycles/reuses Abiotic factors in the environment.

The exchange of matter through the Biosphere

Bio- Life

Geo- Rocks

Chemical- Matter or Nutrient

Cycle: Process

Matter is anything that takes up space

and has mass.

Matter provides nutrients needed for

organisms to function

Matter can be Biotic or Abiotic

Example: Rocks, Plants

A Nutrient is a chemical substance

that an organism must obtain from

its environment

A nutrient can be eaten or absorbed

through the environment

Example: food.

Evaporation

Condensation

Transpiration

Precipitation

Photosynthesis

Respiration

Diffusion

Combustion

Nitrogen Fixation

Denitrification

Decomposers

Phosphorus is a

factor that limits

growth of

producers

There are many Abiotic factors that have a

significant effect on living organisms

Biogeochemical cycles are essential to the

ecosystem

Think: What might be some issues with a certain

environment if one of these factors were low in

availability? (Hint: Limiting Factor)

Ecological Organization

Organism

Population

Biological community

Ecosystem

Biome

Biosphere

The lowest level of organization

(when talking about ecological

communities)

Where an Organism lives is a

Habitat.

The Role an organism plays in

it’s environment is a niche.

Niche and Habitat

A Group of the same organism

Organisms of the same population often

compete for resources.

What resources do organisms of the same

population compete for?

What might be an advantage to staying in

a population? EX: School of Fish.

A group of interacting populations

Organisms may or may not compete

for resources within a biological

community.

Could this school be considered a

Biological Community?

A biological community and all of the

Abiotic factors affecting it.

The size of an ecosystem can vary.

EX: the Tropical Rain forest. The Human

Mouth.

When a Large group of Ecosystems

overlap, this creates a Biome

What is a Biome?

A large collection of ecosystems

with the same climate and have

similar types of ecosystems.

All biomes combine make up the

Biosphere.

1. Organism

2. Population

3. Biological Community

1. Lowest level of organization

2. Group of the same organism

3. A group of interacting populations

1. Ecosystem

2. Biome

3. Biosphere

1. A biological community and all the Abiotic

factors that affect it.

2. A large group of ecosystems

3. All biomes on earth combined

Review: Niche

Requirements for living

space/access to nutrients.

Competition

Competition occurs when more

than one organism uses the same

resource.

What are some things that

organisms may compete for?

FOOD.**

Autotrophs:

Plants

Heterotrophs:

Carnivores

Omnivores

Herbivores

Detritivores

An Autotroph is an organism that collects energy

from the sun

https://www.youtube.com/watch?v=XuKjBIBBAL8