1. Ecosystem Relationships

2. Abiotic
Abiotic Factors: those non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems
Soil, water, air, temperature, sunlight

3. Biotic Biotic Factors: any living thing that helps shape an ecosystem
5 kinds of interactions between biotic factors
Competition
Predation
Mutualism
Commensalism
Parasitism

4. Competition A contest between organisms for a resource Examples: Food
Water
Sunlight
Space
Reproductive mate

5. Competition
Fitness of one organism is lowered by the presence of another
Interspecific Competition
Competition between members of different species
Intraspecific Competition
Competition between members of the same species

6. Predation A biological interaction where one organism preys on another
Beneficial for one organism (the predator) and detrimental for the other (the prey)

7. Mutualism
Two organisms of different species exist in a relationship in which each individual benefits from the activity of the other
Symbiosis: a close and often long-term interaction between two or more different biological species

8. Commensalism
Relationship between two organisms where one benefits without affecting the other
Symbiosis

9. Parasitism
Relationship between species, where one (the parasite) benefits at the expense of the other (the host)
Symbiosis

10. Conservation Status
Indicates whether a group still exists and how likely the group is to become extinct

11. Conservation Status
Extinction: the end of a species

12. Conservation Status
Extirpated: condition of a species that ceases to exist in a certain geographic area
Also called local extinction

13. Conservation Status
Endangered: a species that is at serious risk of extinction

14. Conservation Status
Threatened: any species that are vulnerable to endangerment in the near future, if current conditions do not change
Special Concern: any species that may become threatened or endangered due to a combination of factors

15. Invasive Species
Invasive Species: an organism that is not native to a specific location
Also called an introduced species
Often have a tendency to spread, which is believed to cause damage to the environment, human economy and/or human health
Asian long-horned beetle
Pest!
Cause death of elm, maple, poplar, and willow trees