ecosystems- lqc 5 Flashcards

1
Q

ecosystem

A

A community of living organisms and their physical environment in an area, which is self-sustaining.

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2
Q

habitat

A

The environment with a distinct set of conditions where a species or a group of species live

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3
Q

community

A

Populations of living things interacting with each other in a habitat or ecosystem

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4
Q

population

A

A group of interbreeding organisms of the same species living together in the same area at the same time

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5
Q

abiotic

A

Non-living/physical} factors of the environment

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6
Q

biotic

A

Living factors of the environment

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7
Q

abiotic factors

A
  • Aspect
  • Gradient
  • Wind speed
  • Wind direction
  • Soil (edaphic) – pH, moisture, composition, compaction
  • Mineral ion concentration
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8
Q

biotic factors

A
  • Interspecific competition
  • Intraspecific competition
  • Predation
  • Grazing
  • Mutualism
  • Parasitism
  • Trampling
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9
Q

what are anthropogenic factors

A

The abiotic or biotic factors arising from human activity i.e. grazing, trampling

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10
Q

niche

A

The role that an organism plays in a habitat. If two {individuals/species} share the same niche they will compete until one out-competes the other.

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