biology

White-legged duiker

White-legged duiker 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 White-legged duiker rather than just read about it. In short: The white-legged duiker (Cephalophus crusalbum) is a medium-sized antelope species from the subfamily of duikers (Cephalophinae) within the family of bovids (Bovidae). It is native to Gabon and the Republic of the Congo.

Key takeaways

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

Reference excerpt

The white-legged duiker (Cephalophus crusalbum) is a medium-sized antelope species from the subfamily of duikers (Cephalophinae) within the family of bovids (Bovidae). It is native to Gabon and the Republic of the Congo. It was described as subspecies of the Ogilby's duiker (Cephalophus ogilbyi) by Peter Grubb in 1978. After a revision of the ungulates in 2011 by Colin Groves, some taxonomists regard it as a distinct species. Others, like the IUCN, maintain this species as a subspecies of C. ogilbyi.

Description The head-body length is usually 96.5 to 104.1 cm (38.0 to 41.0 in), but two collected specimens had lengths of 145 cm (57 in). The tail length is between 13 and 16 cm (5.1 and 6.3 in) and the weight is about 20 kg (44 lb). The coat is golden brown. The hindquarters and the rump are darker than the flanks. The neck, the forequarters and the belly are grey. A black broad dorsal stripe is 2.5 to 6 cm (0.98 to 2.36 in) in width. It runs from the shoulders to the rump, where it narrowed to 1 cm and extended to the tail tip. Aside from the black middle stripe, the upperside of the tail is golden brown. The underside of the tail has distinctly longer white hairs, and the end of the tail consists of a small tuft of about 7.5 cm (3.0 in) long golden brown hairs. All four legs are relatively long, with distinct white hairs below the carpus and the tarsus. The throat and the lower jaw are white. The head is grey with a darker brown forehead and a black muzzle. A bright chestnut-coloured arch runs over both eyes. The coronal tufts between the eyes are dark chestnut-coloured. The ears have sparse black hairs on the outer sides. On the surface of the innerside of the ears are distinct white hairs. Both sexes have horns; lengths of 8.7 to 10.9 cm (3.4 to 4.3 in) were measured for the males, and about 5 cm (2.0 in) for the females. The dental formula is I 0/3-C 0/1-P 3/3-M 3/3 (× 2) = 32 in total.

References

Illustrations

Worked examples

Example 1 — a first encounter with White-legged duiker

Start with the simplest possible case. Write down what White-legged duiker 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 White-legged duiker 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 White-legged duiker 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 White-legged duiker

In research: White-legged duiker 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 White-legged duiker 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: White-legged duiker is common in secondary-school and first-year university syllabi. It links to neighbouring topics Artiodactyla stubs, Duikers, IUCN Red List near threatened species, so understanding it makes those chapters shorter.
In everyday life: Look for White-legged duiker 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 White-legged duiker in 20 minutes

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

Frequently asked questions

What is White-legged duiker in simple terms?

Why does White-legged duiker 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 White-legged duiker?

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 White-legged duiker.