biology

Zhou's box turtle

Zhou's box turtle 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 Zhou's box turtle rather than just read about it. In short: Zhou's box turtle (Cuora zhoui) is a species of turtle in the family Geoemydidae (formerly Bataguridae). The species is apparently endemic to China.

Key takeaways

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

Reference excerpt

Zhou's box turtle (Cuora zhoui) is a species of turtle in the family Geoemydidae (formerly Bataguridae). The species is apparently endemic to China.

Etymology The specific name, zhoui, is in honor of Chinese herpetologist Zhou Jiufa.

Geographic range C. zhoui is only known from Chinese food market specimens, and from a relatively small number of individuals that are part of captive breeding programs in Germany (notably the Münster Zoo), Austria, and the United States. In December 2018, the known captive population numbered about 140 individuals, including 80 hatched at the Münster Zoo. It may be found in the forests of southeastern Yunnan or western Guangxi, although it has never been recorded in the wild.

Conservation status The over-collection of turtles in Asia for food, medicinal purposes, and the pet trade industry are the primary causes of the decimation of this turtle's population. As of 2012, this species is considered to be critically endangered and in the middle of a conservation crisis.

References

Further reading Zhao, "Er-mi"; Zhou, Ting; Ye, Ping (1990). "A new Chinese box turtle (Testudinata: Emydidae) — Cuora zhoui ". pp. 213–216. In: Zhao, "Ermi" (editor) (1990). From Water Onto Land. Beijing: Chinese Society for the Study of Amphibians and Reptiles. ("Cuora zhoui Zhao sp. nov.", pp. 213, 216). (in Chinese and English).

External links Asian Turtle Trade Working Group (2016) [errata version of 2000 assessment]. "Cuora zhoui". IUCN Red List of Threatened Species. 2000 e.T5963A97360787. doi:10.2305/IUCN.UK.2000.RLTS.T5963A11972677.en. Retrieved 9 January 2018. Listed as Critically Endangered (CR A1d+2d) Species Cuora zhoui at The Reptile Database Lee DS, Levine LM (2004). First captive breeding of Zhou's Box Turtle, Cuora zhoui, in North America. [1] Spinks, P. Q., Thomson, R. C., Zhang, Y., Che, J., Wu, Y., & Shaffer, H. B. (2012). Species boundaries and phylogenetic relationships in the critically endangered Asian box turtle genus Cuora. Molecular Phylogenetics and Evolution, 63(3), 656–667. [2] Struijk RPJH, Woldring LA. Cuora Studbooks, an overview. [3] CITES Proposal 11.36 – status and biological information on Cuora species. [4]

Illustrations

Worked examples

Example 1 — a first encounter with Zhou's box turtle

Start with the simplest possible case. Write down what Zhou's box turtle 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 Zhou's box turtle 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 Zhou's box turtle 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 Zhou's box turtle

In research: Zhou's box turtle 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 Zhou's box turtle 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: Zhou's box turtle is common in secondary-school and first-year university syllabi. It links to neighbouring topics Critically endangered fauna of China, Cuora, Fauna listed on CITES Appendix II, so understanding it makes those chapters shorter.
In everyday life: Look for Zhou's box turtle 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 Zhou's box turtle in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Zhou's box turtle means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Zhou's box turtle out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Zhou's box turtle in simple terms?

Zhou's box turtle (Cuora zhoui) is a species of turtle in the family Geoemydidae (formerly Bataguridae). The species is apparently endemic to China.

Why does Zhou's box turtle 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 Zhou's box turtle?

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 Zhou's box turtle.