biology

Western woolly lemur

Western woolly lemur 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 Western woolly lemur rather than just read about it. In short: The western woolly lemur or western avahi (Avahi occidentalis) is a species of woolly lemur native to western Madagascar, where they live in dry deciduous forests. These nocturnal animals weigh 0.7–0.9 kg (1.5–2.0 lb).

Key takeaways

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

Reference excerpt

The western woolly lemur or western avahi (Avahi occidentalis) is a species of woolly lemur native to western Madagascar, where they live in dry deciduous forests. These nocturnal animals weigh 0.7–0.9 kg (1.5–2.0 lb). It is a folivorous species. The western woolly lemurs live in monogamous pairs together with their offspring.

Ecology The Western woolly lemur mostly consumes leaves and buds that derive from around 20 different plants which have not matured and have high levels of sugars and proteins. The food is typically consumed within the time frame of two hours before dawn and two hours after dusk, in which the lemurs consume their food at the tops of trees ranging between 2 and 9 metres. During feeding time, lemurs typically settle on thinner branches unless the tree itself is too small to support the animal's weight. Most likely due to the lemur's folivorous diet, Western woolly lemurs spend large amounts of time resting in order to conserve energy.

Behavior Western woolly lemurs travel in pairs with their mate and offspring. These pairs are female-dominated and usually very peaceful. However, if conflicts do arise, they are always initiated and resolved by the female. The female Western woolly lemur also is known for not showing submission towards a male partner.

Conservation Because the Avahi as a species is highly selective in their folivorous diet, depending on plants with specific characteristics, it is hard to keep Avahi in captivity. Therefore, one of the primary and most general ways of conserving the species is to conserve the forests in which Avahi are currently found.

Description The species is located northeast of Bombetoka Bay, in northwestern Madagascar. Its facial fur is white, white-grey, or cream, and forms an outline that contrasts with its surrounding facial features. There is a small darker spot of fur above the nose within the facial outline, and the light facial hair extends below the ears. The eyes have a yellow-brown tint and are surrounded by a circle of black, hairless skin. The nose is black and hairless, and the hair surrounding the nose has a white tint. Its head and body is a brown-grey or yellowish-brown color, and the fur is lightly curled and may appear freckled (some may have a darker color along the back). The tail is pale gray or has tints of greyish-beige, but can also have tints of red, and occasionally, some will have a white tip. On the chest, belly, and inner parts of the body, the fur is fairly thin, light beige, cream, or of an apricot color.

References

External links

ARKive - images and movies of the western woolly lemur (Avahi occidentalis)

Illustrations

Worked examples

Example 1 — a first encounter with Western woolly lemur

Start with the simplest possible case. Write down what Western woolly lemur 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 Western woolly lemur 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 Western woolly lemur 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 Western woolly lemur

In research: Western woolly lemur 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 Western woolly lemur 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: Western woolly lemur is common in secondary-school and first-year university syllabi. It links to neighbouring topics Arboreal mammals, Fauna listed on CITES Appendix I, IUCN Red List vulnerable species, so understanding it makes those chapters shorter.
In everyday life: Look for Western woolly lemur 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 Western woolly lemur in 20 minutes

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

Frequently asked questions

What is Western woolly lemur in simple terms?

Why does Western woolly lemur 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 Western woolly lemur?

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 Western woolly lemur.