ECOLOGY: The study of interactions among living and nonliving things ABIOTIC FACTORS – Non-living factors – Soil, temp., precipitation BIOTIC FACTORS – Living factors – Plants & animals

Biotic vs Abiotic Factors Biotic = living (BIO = life) Abiotic = nonliving Biotic factors are all of the living things in an environment. Abiotic factors are all of the nonliving things in an environment.

Biotic vs Abiotic Factors Environment Biotic FactorsAbiotic Factors

Biotic vs Abiotic Factors Environment Biotic FactorsAbiotic Factors Animals, plants, people, birdsWater, sunlight, soil, rocks, wind, temperature

Biotic or Abiotic?

Biotic!

Biotic or Abiotic?

Abiotic!

Biotic or Abiotic?

Biotic!

Biotic or Abiotic?

Abiotic!

Biotic or Abiotic?

Abiotic!

All organisms are what…biotic or abiotic?

Biotic!

What are all the biotic and abiotic things in this picture?

Do biotic and abiotic factors affect each other?

If there is no water…can anything grow or survive? If it is extremely cold one winter, will that affect whether an animal makes it?

Do biotic and abiotic factors affect each other? If there is no water…can anything grow or survive? No! If it is extremely cold one winter, will that affect whether an animal makes it? Yes! So, abiotic and biotic DO affect each other. Even though water and temperature aren’t living things, they DO affect living things!

Ecosystems Abiotic Factors  Non living parts of an ecosystem –provide the nutrients and materials needed to support life Examples of living factors that need nonliving factors: Plants need water, nutrients and carbon dioxide Animals need water, oxygen and vitamins

Ecosystems Biotic Factors  Living –These are organisms that exist in nature and provide balance in an ecosystem –If some of the biotic factors of an ecosystem dies, what happens to the rest of the system? Can cause an increase or increase in other organisms Here’s an example of what happens if a biotic factor dies: If a fire moves through a forest, the birds fly will away, the trees will burn, the air will be smoky, but the soil will become enriched with nutrients If a fire moves through a forest, the birds fly will away, the trees will burn, the air will be smoky, but the soil will become enriched with nutrients

Guided Practice Organize the following words into TWO lists, Abiotic and Biotic Factors: Clouds Sunlight Sand Ph of soil Air Wind Soil Rain Mud Rocks Ice Oxygen Minerals Mountain Temperature Lake Volcanoes Moon Gold Fire Weather Climate Tulip Bumblebee Moss Leaf Raccoon Polar Bear A cell Deer Maple tree Raspberry bush Goldfish People Eagle Snake Earthworm Corn on the plant Salamander

Guided Practice Organize the following words into TWO lists, Abiotic and Biotic Factors: BioticAbiotic Clouds Sunlight Sand Ph of soil Air Wind Soil Rain Mud Rocks Ice Oxygen Minerals Mountain Temperature Lake Volcanoes Moon Gold Fire Weather Climate Tulip Bumblebee Moss Leaf Raccoon Polar Bear A cell Deer Maple tree Raspberry bush Goldfish People Eagle Snake Earthworm Corn on the plant Salamander

SPECIES A group of organisms so similar that they breed and produce fertile offspring

POPULATION Individuals that belong to the same species and live in the same area

COMMUNITY All of the different populations that live and interact in the same environment.

ECOSYSTEM All the communities that live together with the abiotic factors in the same environment.

Ecosystems  Combination of biotic and abiotic factors in an environment

Levels of Organization Species-> Populations-> Communities-> Ecosystem-> Biome-> Biosphere Small-> Large

–Ecosystem : collection of organisms that live in the same area together with their nonliving environment. –Biome : a large group of ecosystems that have the same climate and biotic factors

BIOSPHERE The combined parts of the lithosphere, hydrosphere & atmosphere where life exists.

The living part of the world –Why should we care about the biosphere? It provides the food we eat, the plants we grow and oxygen to breathe –Why should we take care of the biosphere? Without the services that the biosphere provides, we would be dead. Biosphere

Biosphere  The living part of the world –Biomes  Specific types of ecosystems and environments that have certain types of climates and biotic factors Ecosystems  The combination of the living and non living parts of an environment –Community  Different types of animals and plants that interact with each other in an ecosystem Population  A group of animals/plants that live in one community Species  A single type of organism Organism  An individual life form Life on Earth is broken down into different levels

Biomes Specific types of ecosystems and environments that have certain types of climates and biotic factors –Types TundraDesertTaiga(Boreal)Grassland Temperate Deciduous Forest Tropical Rainforest

Biomes will shape the types of organisms that are found in them Organisms are adapted to the ecosystems and biomes that they live in Different biomes have different amounts and types of organisms for various reasons: –Tropical: will have more and different types of plants and animals Why? Animals and plants tend to grow and reproduce more in warmer, wetter climates –Tundra: will have a smaller amounts and less variety of animals and plants Why? Colder climates have harsh conditions for plants to grow in, which means less food for animals –Temperate forest: have larger human populations Why? Humans prefer milder climates Relationships in Biomes

Warm-up Tell me a story of about how abiotic and biotic factors play a role in your life. For example, “Everyday I wake up and brush my teeth with toothpaste. Then I say hi to my mom and eat a bowl of cereal. I change my clothes, feed the dog, and walk outside to catch the bus. Sometimes I hear birds chirping on the way.” Abiotic factors: toothpaste, cereal, bus Biotic Factors: My mom, my dog, birds You need to include at least 3 abiotic factors and 3 biotic factors and list them at the end.