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Tso-hsin Cheng

Tso-hsin Cheng is a biology topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Tso-hsin Cheng rather than just read about it. In short: Tso-hsin Cheng (郑作新 also transcribed as Zheng Zuoxin) (18 November 1906 – 27 June 1998) was a Chinese ornithologist known for his seminal work on the birds of China and mentoring a generation of researchers. Educated in the United States, he chose to stay in China after the Second World War while many of his academic colleagues moved to Taiwan.

Tso-hsin Cheng — main illustration
Tso-hsin Cheng — illustration

Key takeaways

  • Tso-hsin Cheng belongs to biology; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Tso-hsin Cheng to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Tso-hsin Cheng from memory before moving on to harder problems.

Reference excerpt

Tso-hsin Cheng (郑作新 also transcribed as Zheng Zuoxin) (18 November 1906 – 27 June 1998) was a Chinese ornithologist known for his seminal work on the birds of China and mentoring a generation of researchers. Educated in the United States, he chose to stay in China after the Second World War while many of his academic colleagues moved to Taiwan. He was severely punished during the Cultural Revolution despite being a member of the Communist Party.

Biography

Early life Cheng was born in Fujian on November 18, 1906, and grew up with an interest in the local birds. His mother died of tuberculosis when he was very young and he was taken care of mostly by his grandmother. His father was one of the few Chinese with a higher education and knew English. His father taught him to speak English. As a young boy he was weak and his father encouraged the boy to take up sports. Cheng hiked in the mountains, played tennis and even became a champion 100 m sprinter. His early naturalist interests were in the nature of culinary objects. He collected fish, wild fruit and vegetables which his grandmother cooked. He went to the high school at Fuzhou and sought admission to the Fujian Christian University at the age of 15 which required him to undergo a special test. The English professor of biology there asked the applicants about which vegetable had the highest vitamins and he was the only one to come up with the answer as tomato. Tomatoes were then unheard of in China but Cheng had read about them, leading to his being admitted. He graduated in 1926 after seven semesters after which he wished to move to the United States.

USA An uncle who was a doctor in Fuzhou funded Cheng's travel and he chose the University of Michigan as a cousin studied there. He studied under Peter Olas Okkelberg and received a doctorate in 1930 for his thesis on "The Germ Cell history of Rana cantabrigensis Baird". He also received a Sigma Xi golden Key award. While in the US he had visited the natural history museum of the university and encountered a golden pheasant specimen. He wondered why all the species in China in recent times were described by non-Chinese. He also knew of 3000-year-old classical Chinese literature which had described one-hundred bird species. He chose to return to China and rejected offers to work in the United States.

China Returning to China in 1930 he joined the Fujian Christian University and later founded the China Zoological Society, while heading the department of biology at Fuzhou. In 1938 his university moved to Shao-wu due to the threat of the Japanese invasion. He moved to the US in April 1945 to work on Chinese ornithology, examining specimens in museums and universities across America. He returned to Fuzhou in September 1946. In 1947 he was forced to move to Nanjing due to civil war between Maoists and the Kuomintang. In 1948 many university staff fled to Taiwan and Cheng also considered fleeing. He however asked around and was told that the communist party needed scientists. He then remained and joined the Communist Party. In 1950 he moved to Beijing and became a curator of birds at the Academia Sinica and founded the Peking Natural History Museum in 1951. He was the first director of the scientific publications office. He translated Joachim Steinbacher's book on bird migration and ornithology into Chinese. From 1955 to 1957 he worked along with Soviet and East German ornithologists in expeditions and studies in southern Yunnan and northeastern China.

Cultural Revolution In 1958 Cheng's work in China was interrupted by a campaign to eradicate sparrows (along with mice, flies and mosquitoes). Cheng was, for ecological reasons, against the campaign from the start but it was only in 1959 that he could influence a decision against the killing of sparrows. He travelled to East Germany in May 1957 and worked with Erwin Stresemann examining specimens from the Chinese region. He was also able to meet other ornithologists like L A Portenko, Charles Vaurie, and Gunther Niethammer in meetings that Stresemann called as the "Atlantic Pacific Conference". He was however not allowed to attend evening parties at Stresemann's home in West Berlin due to instructions from the Chinese embassy in East Germany. Cheng was made a foreign correspondent of the German Ornithologists' Society through the nomination of Stresemann. Cheng returned to China with stays in Leningrad and Moscow. Returning to China he was faced by Mao's Cultural Revolution. Scientific work came to a halt and a slogan was that "the more knowledge you possess, the more revolutionary you are". Cheng was declared a criminal as he had opposed Chairman Mao's campaign against sparrows. He was told that "birds are public animals of capitalism", had to wear a badge that read "reactionary", was made to undergo an examination of his supposed ornithological training, and was forced to sweep corridors and clean toilets. The test was given by a committee and he was asked to identify a bird made up of parts from multiple species. After he failed the "test", his salary was reduced to a bare minimum. In August 1966 he was kept in isolation in a cowshed for six months and his house was searched by Red Guards who confiscated all his belongings including a typewriter that he valued the most. The Academia Sinica was occupied by the Red Guards from 1967 until 1968 when Mao ordered their removal. Peace returned only in the 1970s and his work on the birds of China was sent for publication after having been rejected once earlier. It was published in 1978, but dated 1976, and he was forced to include a long quotation from Mao, who had since died. After Mao's death, Cheng was invited to an international symposium of the World Pheasant Association in November 1978. He also spent two months in England during which time he met Sir Peter Scott and G. V. T. Matthews. He served as a professor at the Beijing Normal University and in 1987 he and his colleagues published a Synopsis of the Avifauna of China. He also edited the Fauna Sinica, Aves volumes from 1970 to 1980. He worked on bird conservation and worked on international collaboration for the protection of migratory species.

Personal life Cheng met Chen Jia-jang (Lydia) while playing tennis and married her in 1942. In 1992 the couple celebrated their golden anniversary with Cheng gifting the golden key from Michigan to his wife and receiving in turn a gift of a golden pencil.

… excerpt ends here. Continue reading the full article.

Illustrations

Tso-hsin Cheng illustration

Worked examples

Example 1 — a first encounter with Tso-hsin Cheng

Start with the simplest possible case. Write down what Tso-hsin Cheng claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Tso-hsin Cheng before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Tso-hsin Cheng ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Tso-hsin Cheng

In research
Tso-hsin Cheng appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Tso-hsin Cheng in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Tso-hsin Cheng is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1906 births, 1998 deaths, 20th-century Chinese zoologists, so understanding it makes those chapters shorter.
In everyday life
Look for Tso-hsin Cheng outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Tso-hsin Cheng in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Tso-hsin Cheng means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Tso-hsin Cheng out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Tso-hsin Cheng in simple terms?

Tso-hsin Cheng (郑作新 also transcribed as Zheng Zuoxin) (18 November 1906 – 27 June 1998) was a Chinese ornithologist known for his seminal work on the birds of China and mentoring a generation of researchers. Educated in the United States, he chose to stay in China after the Second World War while m…

Why does Tso-hsin Cheng matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Tso-hsin Cheng?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Tso-hsin Cheng.

Tags

  • 1906 births
  • 1998 deaths
  • 20th-century Chinese zoologists
  • Biogeographers
  • Biologists from Fujian
  • Chinese zoologists
  • Educators from Fujian
  • Members of the Chinese Academy of Sciences
  • Ornithologists
  • People from Fuzhou
  • University of Michigan alumni
  • Victims of the Cultural Revolution

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