biology

Sharpe's rail

Sharpe's rail 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 Sharpe's rail rather than just read about it. In short: Sharpe's rail (Gallirallus sharpei) is a species of bird in the family Rallidae. It is known only from the type specimen of unknown origin, but it has been speculated that it originated from Indonesia.

Key takeaways

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

Reference excerpt

Sharpe's rail (Gallirallus sharpei) is a species of bird in the family Rallidae. It is known only from the type specimen of unknown origin, but it has been speculated that it originated from Indonesia. Due to the lack of recent records, it has been considered extinct, but new evidence suggests it is possibly better regarded as a morph of the buff-banded rail. The common name and Latin binomial name commemorate the British zoologist Richard Bowdler Sharpe.

References BirdLife International (2016). "Hypotaenidia philippensis". IUCN Red List of Threatened Species. 2016 e.T22692425A93353232. doi:10.2305/IUCN.UK.2016-3.RLTS.T22692425A93353232.en. Retrieved 15 November 2023.

BirdLife International Globally Threatened Forums (2008). Sharpe's Rail (Gallirallus sharpei): no longer recognised taxonomically. Accessed 2008-12-15.

Worked examples

Example 1 — a first encounter with Sharpe's rail

Start with the simplest possible case. Write down what Sharpe's rail 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 Sharpe's rail 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 Sharpe's rail 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 Sharpe's rail

In research: Sharpe's rail 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 Sharpe's rail 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: Sharpe's rail is common in secondary-school and first-year university syllabi. It links to neighbouring topics Birds described in 1893, Birds of Indonesia, Controversial bird taxa, so understanding it makes those chapters shorter.
In everyday life: Look for Sharpe's rail 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 Sharpe's rail in 20 minutes

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

Frequently asked questions

What is Sharpe's rail in simple terms?

Why does Sharpe's rail 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 Sharpe's rail?

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 Sharpe's rail.