ecosystem relationships
DESCRIPTION
Ecosystem Relationships. 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. Biotic. Biotic Factors: any living thing that helps shape an ecosystem - PowerPoint PPT PresentationTRANSCRIPT
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Ecosystem Relationships
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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
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Biotic
Biotic Factors: any living thing that helps shape an ecosystem
5 kinds of interactions between biotic factors Competition
Predation
Mutualism
Commensalism
Parasitism
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Competition A contest between organisms
for a resource
Examples: Food
Water
Sunlight
Space
Reproductive mate
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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
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Predation
A biological interaction where one organism preys on another
Beneficial for one organism (the predator) and detrimental for the other (the prey)
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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
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Commensalism
Relationship between two organisms where one benefits without affecting the other
Symbiosis
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Parasitism
Relationship between species, where one (the parasite) benefits at the expense of the other (the host)
Symbiosis
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Conservation Status
Indicates whether a group still exists and how likely the group is to become extinct
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Conservation Status
Extinction: the end of a species
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Conservation Status
Extirpated: condition of a species that ceases to exist in a certain geographic area Also called local extinction
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Conservation Status
Endangered: a species that is at serious risk of extinction
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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
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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