Ancient Chinese Poetry Reveals 65% Decline in Yangtze Finless Porpoise Habitat
- Researchers published on May 5 in Current Biology that ancient Chinese poems reveal a 65 percent decline in the Yangtze finless porpoise habitat since around 618 AD.
- Scientists analyzed 724 verified poems mentioning the porpoise to overcome scarce official records and chart its historical range along the Yangtze River in China.
- The Yangtze finless porpoise, a critically endangered freshwater species with about 1,250 wild individuals, has lost 91 percent of its range in tributaries and lakes over 1,400 years.
- Yaoyao Zhang explained that analyzing historical data helps identify when population decreases started and link those trends to possible causes such as habitat loss, climate shifts, excessive hunting, diseases, or the arrival of non-native species.
- The research suggests that historical texts can improve understanding of species decline timing and causes, and Zhang's team plans to further explore poems for past river conditions and porpoise behavior.
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Threatened Yangtze Glattschwinswal: How ancient poems preserve his history
The world's only freshwater porpoise is rarer than the Great Panda. Researchers have now evaluated poems from the Chinese imperial era in order to reconstruct its decline. It stands for an entire ecosystem.
Ancient poems tell the story of charismatic river porpoise's decline over the past 1,400 years
Endemic to China's Yangtze River, the Yangtze finless porpoise is known for its intelligence and charismatic appearance; it looks like it has a perpetual smile on its face. To track how this critically endangered porpoise's habitat range has changed over time, a team of biodiversity and conservation experts compiled 724 ancient Chinese poems referencing the porpoise from historic collections across China.
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