biology

Kerguelen petrel

Kerguelen petrel 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 Kerguelen petrel rather than just read about it. In short: The Kerguelen petrel (Aphrodroma brevirostris) is a small (36 cm long) slate-grey seabird in the family Procellariidae. It is the only species placed in the genus Aphrodroma.

Key takeaways

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

Reference excerpt

The Kerguelen petrel (Aphrodroma brevirostris) is a small (36 cm long) slate-grey seabird in the family Procellariidae. It is the only species placed in the genus Aphrodroma. It is a pelagic, circumpolar seabird of the Southern Ocean. It breeds on islands in the southern Atlantic and Indian Oceans.

Taxonomy The Kerguelen petrel was formally described in 1831 by the French naturalist René Lesson. He placed it in the genus Procellaria that had been erected for the petrels by Carl Linnaeus in 1758 and coined the binomial name Procellaria brevirostris. The Kerguelen petrel was formerly included with the gadfly petrels in the genus Pterodroma and later in the monotypic genre Lugensa but is now placed in the genus Aphrodroma that was introduced for the Kerguelen petrel by Storrs L. Olson in 2000. The name Aphrodroma combines the Ancient Greek aphros meaning "sea foam" with -dromos meaning "-racer".The specific epithet brevirostris is from the Latin brevis meaning "short" and -rostris meaning "-billed". The species is monotypic: no subspecies are recognised.

Breeding Kerguelen petrels breed colonially on remote islands; colonies are present on Gough Island in the Atlantic Ocean, and Marion Island, Prince Edward Island, Crozet Islands and Kerguelen Island in the Indian Ocean. The species attends its colonies nocturnally, breeding in burrows in wet soil. The burrows usually face away from the prevailing wind. A single egg is laid per breeding season; the egg is unusually round for the family. The egg is incubated by both parents for 49 days. After hatching the chick fledges after 60 days.

References

External links Kerguelen Petrel Photos Specimens of the Kerguelen Petrel in the collection of the Museum of New Zealand Te Papa Tongarewa Archived 2012-10-24 at the Wayback Machine

Illustrations

Worked examples

Example 1 — a first encounter with Kerguelen petrel

Start with the simplest possible case. Write down what Kerguelen petrel 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 Kerguelen petrel 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 Kerguelen petrel 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 Kerguelen petrel

In research: Kerguelen petrel 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 Kerguelen petrel 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: Kerguelen petrel is common in secondary-school and first-year university syllabi. It links to neighbouring topics Birds described in 1831, Birds of subantarctic islands, Fauna of Gough Island, so understanding it makes those chapters shorter.
In everyday life: Look for Kerguelen petrel 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 Kerguelen petrel in 20 minutes

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

Frequently asked questions

What is Kerguelen petrel in simple terms?

The Kerguelen petrel (Aphrodroma brevirostris) is a small (36 cm long) slate-grey seabird in the family Procellariidae. It is the only species placed in the genus Aphrodroma.

Why does Kerguelen petrel 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 Kerguelen petrel?

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 Kerguelen petrel.