Assertion: urban ecologist | /r/CapableOf | study surface water hydrology
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text: Within or outside, we need multiple perspectives for urban ecology to flourish—the knowledge of a street vendor who spends decades selling flowers under a Ficus tree canopy is of as much value as that of a rag picker who keeps the city clean by recycling its trash, and the insights of a cattle grazer who has seen a healthy lake transform into a polluted mess are as important as that of an urban ecologist studying surface water hydrology.