biology

Tarai gray langur

Tarai gray langur 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 Tarai gray langur rather than just read about it. In short: The Tarai gray langur (Semnopithecus hector) is an Old World monkey, and was formerly considered a subspecies of the northern plains gray langur. The species is listed as near threatened, as there are probably not many more than 10,000 mature individuals, and it is experiencing a continuing decline.

Key takeaways

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

Reference excerpt

The Tarai gray langur (Semnopithecus hector) is an Old World monkey, and was formerly considered a subspecies of the northern plains gray langur. The species is listed as near threatened, as there are probably not many more than 10,000 mature individuals, and it is experiencing a continuing decline.

Habitat and behaviour The Tarai gray langur is native to northern India, Bhutan, and Nepal, and inhabits the Himalayan foothills from Rajaji National Park to southwestern Bhutan. It also lives in the moist deciduous forest of the Siwalik Hills to oak forest ranging from altitudes of 150 to 1,600 m (490 to 5,250 ft). It is a diurnal species which lives arboreally in the top canopy of sal tree forests in India and Nepal. The species' population is fragmented, with a 2003 report estimating that there were at most fifty separate subpopulations. The monkeys are leaf-eaters who live in groups with multiple males and females. Groups have been observed feeding in orchards and crop fields outside of Rajaji National Park.

Conservation The Tarai gray langur is near threatened, and the monkeys are threatened by human industrial activity (such as mining and logging) as well as human resettlement. While they are not traded, their population is still in decline. They have a generation time of twelve years.

References

Illustrations

Worked examples

Example 1 — a first encounter with Tarai gray langur

Start with the simplest possible case. Write down what Tarai gray langur 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 Tarai gray langur 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 Tarai gray langur 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 Tarai gray langur

In research: Tarai gray langur 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 Tarai gray langur 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: Tarai gray langur is common in secondary-school and first-year university syllabi. It links to neighbouring topics Fauna listed on CITES Appendix I, Fauna of Sikkim, IUCN Red List near threatened species, so understanding it makes those chapters shorter.
In everyday life: Look for Tarai gray langur 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.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Tarai gray langur” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Tarai gray langur in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Tarai gray langur 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 Tarai gray langur out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Tarai gray langur in simple terms?

Why does Tarai gray langur 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 Tarai gray langur?

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 Tarai gray langur.