biology

North Island snipe

North Island snipe 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 North Island snipe rather than just read about it. In short: The North Island snipe (Coenocorypha barrierensis), also known as the little barrier snipe or tutukiwi, is an extinct species of bird in the sandpiper family, Scolopacidae, that was endemic to New Zealand. Taxonomy and etymology Examination of the taxonomy of Coenocorypha snipe has been hindered by lack of material, erroneous locality data, misidentified specimens and confused nomenclature.

Key takeaways

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

Reference excerpt

Taxonomy and etymology Examination of the taxonomy of Coenocorypha snipe has been hindered by lack of material, erroneous locality data, misidentified specimens and confused nomenclature. The North Island snipe was described in 1955 by Walter Oliver as a subspecies of the Subantarctic snipe (Coenocorypha aucklandica), but has since been elevated to a full species, with fossil material from the North Island referred to it. The specific epithet and older common name refer to the type locality.

Distribution and extinction The North Island snipe is extinct. Its prehistoric distribution comprised the North Island where subfossil remains have been found in several places. It became extinct on the mainland of North Island following the occupation of New Zealand by Polynesians (the ancestors of the Māori people) and the associated introduction of Pacific rats (Rattus exulans). It survived on at least one offshore island, Little Barrier Island in the Hauraki Gulf, until 1870 where the type (and only existing) specimen was taken. According to Oliver, "About 1870 two snipe were seen on Little Barrier Island by Captain Bennett of the schooner Mary Ann. One was captured alive but died in captivity, the other escaped. The captured specimen was presented to the Auckland Museum by Mr T.B. Hill and is the basis of the following account." In the year 1820, Richard Cruise recorded shooting a snipe on Motukorea, also known as Browns Island. This indicates that the species may have also persisted on that island until then.

Description Oliver described the North Island snipe as being generally similar to other Coenocorypha snipes. He added that it differed from the South Island snipe in the "greater area of buffy white on chin and throat, the absence of bars on the lower abdomen, the crescent-shaped markings on the upper abdomen and the less rufous general coloration".

References

Notes

Sources Baker, Allan J.; Miskelly, Colin M. & Haddrath, Oliver (2009). "Species limits and population differentiation in New Zealand snipes (Scolopacidae: Coenocorypha)". Conservation Genetics. 11 (4): 1363–1374. doi:10.1007/s10592-009-9965-2. S2CID 23667784. Higgins, P.J.; Davies, S.J.J.F., eds. (1996). Handbook of Australian, New Zealand and Antarctic Birds. Volume 3:Snipe to Pigeons. Melbourne: Oxford University Press. pp. 54–66. ISBN 0-19-553070-5. Miskelly, C.M. (1987). "The identity of the Hakawai" (PDF). Notornis. 34 (2): 95–116. Archived from the original (PDF) on 2009-03-25. Oliver, W.R.B. (1974) [1955]. New Zealand Birds. Wellington: Reed. p. 275. ISBN 0-589-00851-X. Worthy, Trevor H.; Miskelly, Colin M.; & Ching, Bob A. (R.). (2002). "Taxonomy of North and South Island snipe (Aves: Scolopacidae: Coenocorypha), with analysis of a remarkable collection of snipe bones from Greymouth, New Zealand". New Zealand Journal of Zoology. 29 (3): 231–244. doi:10.1080/03014223.2002.9518307. S2CID 84374863.

Illustrations

Worked examples

Example 1 — a first encounter with North Island snipe

Start with the simplest possible case. Write down what North Island snipe 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 North Island snipe 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 North Island snipe 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 North Island snipe

In research: North Island snipe 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 North Island snipe 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: North Island snipe is common in secondary-school and first-year university syllabi. It links to neighbouring topics Bird extinctions since 1500, Birds described in 1955, Birds of the North Island, so understanding it makes those chapters shorter.
In everyday life: Look for North Island snipe 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 North Island snipe in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what North Island snipe 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.
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Frequently asked questions

What is North Island snipe in simple terms?

The North Island snipe (Coenocorypha barrierensis), also known as the little barrier snipe or tutukiwi, is an extinct species of bird in the sandpiper family, Scolopacidae, that was endemic to New Zealand. Taxonomy and etymology Examination of the taxonomy of Coenocorypha snipe has been hindered by…

Why does North Island snipe 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 North Island snipe?

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 North Island snipe.