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 Factors Abiotic Factors

Biotic vs Abiotic Factors Environment Biotic Factors Abiotic Factors Animals, plants, people, birds Water, sunlight, soil, rocks, wind, temperature

Biotic or Abiotic?

Biotic or Abiotic? Biotic!

Biotic or Abiotic?

Biotic or Abiotic? Abiotic!

Biotic or Abiotic?

Biotic or Abiotic? Biotic!

Biotic or Abiotic?

Biotic or Abiotic? Abiotic!

Biotic or Abiotic?

Biotic or Abiotic? Abiotic!

All organisms are what…biotic or abiotic?

All organisms are what…biotic or abiotic?

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

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

Do biotic and abiotic factors affect each other?

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 decrease 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

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

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

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

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

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

Biome : a large group of ecosystems that have the same climate and biotic factors

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

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

Biosphere 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.

Life on Earth is broken down into different levels 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

Relationships in Biomes 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

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.