biology

Trindade petrel

Trindade 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 Trindade petrel rather than just read about it. In short: The Trindade petrel (Pterodroma arminjoniana), also known as the Round island petrel, is a species of seabird and a member of the gadfly petrels. The bird is 35–39 cm (14–15 in) in size, with an 88–102 cm (35–40 in) wingspan.

Key takeaways

Trindade 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 Trindade petrel to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Trindade petrel from memory before moving on to harder problems.

Reference excerpt

The Trindade petrel (Pterodroma arminjoniana), also known as the Round island petrel, is a species of seabird and a member of the gadfly petrels. The bird is 35–39 cm (14–15 in) in size, with an 88–102 cm (35–40 in) wingspan. The petrel has various color morphs: dark and light, as well as intermediates between the two. Previously, two separate populations were considered conspecific, one occurring in the south Pacific, sometimes seen in Hawaii; the other occurring in the south Atlantic, nesting off Brazil, with regular sightings in the Gulf Stream off the southeastern United States. The little-known Pacific birds were then split and determined distinct as the Herald petrel, Pterodroma heraldica. It uses oceanic islands and atolls, nesting on cliff ledges, ridges or rocky slopes. On some islands, nesting birds are threatened by feral cats and rats. Due to ongoing habitat loss and small breeding range, this species is evaluated as vulnerable on the IUCN Red List of Threatened Species. The specific name is after Vittorio Arminjon, captain of the ship during the voyage in which the specimen was collected.

Notes

References "National Geographic" Field Guide to the Birds of North America ISBN 0-7922-6877-6 Seabirds, an Identification Guide by Peter Harrison, (1983) ISBN 0-7470-1410-8 Handbook of the Birds of the World Vol 1, Josep del Hoyo editor, ISBN 84-87334-10-5 "National Audubon Society" The Sibley Guide to Birds, by David Allen Sibley, ISBN 0-679-45122-6

External links BirdLife species factsheet

Illustrations

Worked examples

Example 1 — a first encounter with Trindade petrel

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

In research: Trindade 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 Trindade 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: Trindade petrel is common in secondary-school and first-year university syllabi. It links to neighbouring topics Birds described in 1869, Birds of Brazil, Birds of the Atlantic Ocean, so understanding it makes those chapters shorter.
In everyday life: Look for Trindade 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.

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Trindade petrel in 20 minutes

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

Frequently asked questions

What is Trindade petrel in simple terms?

Why does Trindade 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 Trindade 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 Trindade petrel.