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what is biodiversity in ecosystems affected by?
abiotic and biotic factors
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what is an abiotic factor?
physical factors including temperature and pH
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what is a biotic factor?
factors related directly to living organisms and include factors such as grazing and predation
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how can humans influence biodiversity in ecosystems?
through creation of pollution, habitat destruction and overexplotation of species
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what is a biome?
region of the planet with characteristic climate, flora and fauna
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what is flora?
distinctive communities of plants
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what is fauna?
animals
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what is an ecosystem ?
natural biological unit composed of habitats, populations and communities
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what is a niche?
the role an organism has within its community in an ecosystem
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what is a population?
the number of organism of the same species living in a defined area
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what is interspecific competition ?
when organisms of different species compete
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what is intraspecific competition?
when organisms of the same species compete
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3 examples of global biomes
tropical rainforest, dry grassland, tundra,shallow seas
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2 examples that affect the global distribution of biomes
temperature, rainfall
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what is biodiversity
variety and number of species
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2 examples of abiotic factors
pH, temperature
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2 examples of biotic factors
grazing, predation
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Card 2

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what is an abiotic factor?

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physical factors including temperature and pH

Card 3

Front

what is a biotic factor?

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Card 4

Front

how can humans influence biodiversity in ecosystems?

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Card 5

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what is a biome?

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