Functions of plants in zoos:
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defining spaces
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creating microclimates
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screening
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decorating
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feeding
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supplementing food
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occupying animals
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building nests
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recreating animals and visitors
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educating visitors
Restrictions to the use of plants in zoos:
regarding the plant species:
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demand for light, temperature, water, soil
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adaptability
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resistance to destruction
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pest resistance
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recovering abilities
regarding the animals demands:
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toxicity
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nutritional value
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nesting value
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structural value
regarding design issues:
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aesthetic value
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seasonal appearance
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compatibility with other plant forms
regarding management issues:
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times of availability
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costs
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compatibility with other plants (dominance, spreading)
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productivity
maintenance requirements
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