Biotic & Abiotic Influences

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Biotic & Abiotic Influences

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

Biotic & Abiotic Influences Ecosystem: all the living organisms that share a region & their physical & chemical environment e.g. pond forest oasis

Biotic & Abiotic Influences Biotic Factors: living things, their remains, and features, such as nests, associated with their activities

Biotic & Abiotic 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

Biotic & Abiotic Influences Abiotic Factors: the non-living physical and chemical components of an ecosystem e.g. rocks oxygen water sunlight

Biotic & Abiotic Influences Sustainable Ecosystem: an ecosystem that is maintained through natural processes

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

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

Biotic & Abiotic Influences Tolerance Range: the abiotic conditions within which a species can survive

Biotic & Abiotic Influences Tolerance Range: the abiotic conditions within which a species can survive Key abiotic factors: -light availability -water availability -nutrient availability -temperature

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

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

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

Biotic & Abiotic Influences Biotic Factors: interactions with other organisms influence a species' success e.g. 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

Biotic & Abiotic Influences Biotic Factors: interactions with other organisms influence a species' success e.g. 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

Biotic & Abiotic 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

Biotic & Abiotic Influences Carrying Capacity: the maximum population size of a particular species that a given ecosystem can sustain sustainable population

Biotic & Abiotic Influences Carrying Capacity: the maximum population size of a particular species that a given ecosystem can sustain Is human population growth sustainable?