According to Professor David Dudgeon's research, freshwater habitats account for less than 1% of the earth's surface area, which is extremely small, but it supports the survival of 10% of the world's species and one-third of the vertebrates. David has been conducting river research in Hong Kong and other places, hoping to better understand freshwater ecosystems and what affects the health of rivers and streams.
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- Hong Kong Ecologist 3, Nature, Professor David Dudgeon
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