1. Biotic & Abiotic Factors
Environmental Sciences
Turner College & Career High School  2019

2. Ecology
Eco
logy
the study of the relationships between biotic and abiotic factors in environments
eco (G) root home, abode
log, -o, y (G) suffix study of
ecosystem
ecoclimate
ecotourism
climatology
epidemiology
zoology

3. What factors both living and non-living will affect my life?
2 minutes
to Think, Pair, Share

4. Factors Affecting the Mouse
Predators
Food
Shelter
Temperature
Weather
Competitors
Pathogens
Parasites
Clean Water

5. Would the same factors affect this flower?
2 minutes
to Think, Pair, Share

6. Factors Affecting the Flower
Predators
Food
Shelter
Temperature
Weather
Competitors
Pollinators
Soil
Nutrients
Wind
Aspect
Daylight

7. Biotic & Abiotic Influences

8. Biotic & Abiotic Influences
Ecosystem: all the living organisms that share a region & their physical & chemical environment

9. Examples of Ecosystems
Mountains in Colorado
Coral Reef in Belize
Arizona Desert

10. Biotic & Abiotic Influences
Sustainable Ecosystem: an ecosystem that is maintained through natural processes.
Sustainability: the ability to maintain natural ecological conditions without interruption or weakening.

11. Biotic & Abiotic Influences
Limiting Factor: any factor that restricts the size of a population:
Biotic: availability of food.
Abiotic: access to water.

12. Biotic & Abiotic Influences
Tolerance Range: the abiotic conditions within which a species can survive.
sunlight availability
water availability
nutrient availability
Temperature pH

13. Abiotic Influences
Abiotic Factors: the non-living physical and chemical components of an ecosystem.
Rocks
Oxygen
Water
Sunlight

14. Abiotic Factors Climatic and Edaphic
Climatic: factors that relate to the weather.
Edaphic: factors that relate to the soil.

15. Climatic Factors What climatic factors can be measured?
Light Intensity
Humidity
Wind speed
Temperature
Aspect
Slope

16. Edaphic Factors What edaphic factors could we measure? Soil pH
Amount of water in soil
Soil Temperature
Soil Air
Soil Texture

17. Biotic Influences
Biotic Factors: living things, their remains, and features, such as nests, associated with their activities.
Population: a group of individuals of the same species.
Community: all of the different species that interact in an ecosystem.

18. Biotic Influences
Biotic Factors: interactions with other organisms influence a species' success.
Competition: two individuals vying for the same resource.

19. Biotic Influences
Biotic Factors: interactions with other organisms influence a species' success.
Competition: two individuals vying for the same resource.
Predation: one individual feeds on another.

20. Biotic Influences
Biotic Factors: interactions with other organisms influence a species' success.
Competition: two individuals vying for the same resource.
Predation: one individual feeds on another.
Mutualism: two individuals benefitting each other.

21. Biotic Influences
Biotic Factors: interactions with other organisms influence a species' success.
Competition: two individuals vying for the same resource.
Predation: one individual feeds on another.
Mutualism: two individuals benefitting each other.
Parasitism: one individual lives on or in and feeds on a host organism.

22. Biotic Influences
Biotic Factors: interactions with other organisms influence a species' success.
Competition: two individuals vying for the same resource.
Predation: one individual feeds on another.
Mutualism: two individuals benefitting each other.
Parasitism: one individual lives on or in and feeds on a host organism.
Commensalism: one individual benefits & the other neither benefits nor is harmed.

23. Biotic Factors Parasitism Mutualism Competition such as
Interact with each other in complex ways
Parasitism Mutualism Competition
such as
Also interact with abiotic factors in the ecosystem
Dependent upon water, minerals, temperature, light

24. Biotic Influences
Carrying Capacity: the maximum population size of a particular species that a given ecosystem can sustain.
Carrying capacity is set by the influences of all the biotic and abiotic factors over a long period of time.
Sustainable populations live at or below their carrying capacity.

25. Is human population growth sustainable?

26. Classify the factors in the picture as either biotic factors or abiotic factors…

27. And in this one??

28. Decide: Biotic or Abiotic
Write A if Abiotic _____ Mouse _____ Rocks _____ Water _____ Fish _____ Paper _____ Glass _____ Aluminum _____ Wooden Ruler _____ Sand _____ Clouds
Write B if Biotic _____ Corpse _____ Snail _____ Vegetation _____ Bread Mold _____ Trees _____ Soil _____ Plastic _____ Pipe _____ Air _____ Wind

29. The Deer Population
A field study was conducted to observe a deer population in a given region over time. The deer were counted at different intervals over a period of 40 years. During this period of time both ranching and hunting increased in the study region. A summary of the data is presented in the table.

30. The Deer Population
During which 10 year period did the greatest increase in the deer population occur?
State one possible action that could have been used to help maintain a more stable population of deer in the area.
Identify an abiotic limiting factor for the deer populations.
Identify a biotic limiting factor for the deer populations.
List two problems an overpopulation of deer can cause in the environment.

31. Biotic Factors BIOTIC Definition Used in a sentence.
Examples Create a test question.

32. Abiotic Factors ABIOTIC Definition Used in a sentence.
Examples Create a test question.

33. Levels of Organization
Biome
Ecosystem
Community
Population
Organism
Organ System
Organ
Tissue
Cell
All living and nonliving things interacting within a certain area
All interacting populations in an ecosystem
Large region with typical plants and animals that includes several ecosystems
All organisms of the same kind living in one area
Group of similar cells organized to work together
Group of different kinds of tissues working together
Group of organs working together
One individual living thing
Smallest unit of living things