biology

Partula pearcekellyi

Partula pearcekellyi 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 Partula pearcekellyi rather than just read about it. In short: †Partula pearcekellyi, also known as Pearce-Kelly's tree snail, is an extinct species of arboreal gastropod in the family Partulidae which was endemic to Raiatea in the Society Islands of French Polynesia. It has been recently listed as extinct by the International Union for Conservation of Nature in June 2024, though it most likely went extinct between 1991 and 1992.

Key takeaways

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

Reference excerpt

†Partula pearcekellyi, also known as Pearce-Kelly's tree snail, is an extinct species of arboreal gastropod in the family Partulidae which was endemic to Raiatea in the Society Islands of French Polynesia. It has been recently listed as extinct by the International Union for Conservation of Nature in June 2024, though it most likely went extinct between 1991 and 1992. Like many other snails of the Society Islands, its extinction can be attributed to the introduction of the rosy wolfsnail (Euglandina rosea) which invaded its only known habitat in 1990.

Anatomy Although all material consists of juvenile specimens, they all appeared to be developing an anatomical structure similar to that of Partula hebe.

Distribution P. pearcekellyi is known from six specimens collected in the Toahiva Valley, four of which were live-collected juveniles found upon low shrubs and ferns, in leaf litter, and on the stumps of dead trees. During the same collection, 1 juvenile and 26 adult P. hebe specimens were taken alive, suggesting that pearcekellyi was a "rare canopy species".

Etymology Partula pearcekellyi was named after Paul Pearce-Kelly of the Zoological Society of London, a renowned conservationist.

References

Worked examples

Example 1 — a first encounter with Partula pearcekellyi

Start with the simplest possible case. Write down what Partula pearcekellyi 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 Partula pearcekellyi 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 Partula pearcekellyi 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 Partula pearcekellyi

In research: Partula pearcekellyi 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 Partula pearcekellyi 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: Partula pearcekellyi is common in secondary-school and first-year university syllabi. It links to neighbouring topics Gastropods described in 2016, IUCN Red List extinct species, Partula (gastropod), so understanding it makes those chapters shorter.
In everyday life: Look for Partula pearcekellyi 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 Partula pearcekellyi in 20 minutes

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

Frequently asked questions

What is Partula pearcekellyi in simple terms?

Why does Partula pearcekellyi 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 Partula pearcekellyi?

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 Partula pearcekellyi.