biology

Leucopternis

Leucopternis 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 Leucopternis rather than just read about it. In short: Leucopternis is a Neotropical genus of birds of prey in the family Accipitridae. They are associated with tropical forest, and are uncommon or rare.

Key takeaways

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

Reference excerpt

Leucopternis is a Neotropical genus of birds of prey in the family Accipitridae. They are associated with tropical forest, and are uncommon or rare. Their plumage is largely black or gray above and white below, and they have distinctive orange ceres.

Species Traditionally, Leucopternis contains significantly more species than given here. However, as the genus probably was polyphyletic, moves of species to other genera were proposed and have been accepted by the American Ornithologists' Union's South American Check-list Committee and North American Check-list Committee, except that the South American Committee placed the former L. lacernulatus in the existing genus Buteogallus instead of in a new genus Amadonastur by itself. The other species were placed in the genera Cryptoleucopteryx, Morphnarchus, Pseudastur, and Buteogallus. According to this treatment, the species remaining in Leucopternis are:

Notes

References Chesser, R. Terry; et al. (2012). "Fifty-third Supplement to the American Ornithologists' Union Check-list of North American Birds" (PDF). The Auk. 129 (3): 573–588. doi:10.1525/auk.2012.129.3.573. S2CID 198159113. Retrieved 2012-07-18. Lerner & Mindell (2008). Molecular phylogenetics of the buteonine birds of prey (Accipitridae). Auk 125: 304–315. Raposo do Amaral, Miller, Silveira, Bermingham, & Wajntal (2006). Polyphyly of the hawk genera Leucopternis and Buteogallus (Aves, Accipitridae): multiple habitat shifts during the Neotropical buteonine diversification. BMC Evol. Biol. 6: 10 Raposo do Amaral, F. S.; et al. (2009). "Patterns and Processes of Diversification in a Widespread and Ecologically Diverse Avian Group, the Buteonine Hawks (Aves, Accipitridae)". Molecular Phylogenetics and Evolution. 53 (3): 703–715. Bibcode:2009MolPE..53..703D. doi:10.1016/j.ympev.2009.07.020. PMID 19635577. Remsen, J. V. Jr.; et al. "A Classification of the Bird Species of South America". American Ornithologists' Union. Archived from the original on 2009-03-02. Retrieved 2012-07-18.

Illustrations

Worked examples

Example 1 — a first encounter with Leucopternis

Start with the simplest possible case. Write down what Leucopternis 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 Leucopternis 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 Leucopternis 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 Leucopternis

In research: Leucopternis 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 Leucopternis 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: Leucopternis is common in secondary-school and first-year university syllabi. It links to neighbouring topics Accipitriformes stubs, Bird genera, Birds of prey of South America, so understanding it makes those chapters shorter.
In everyday life: Look for Leucopternis 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 Leucopternis in 20 minutes

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

Frequently asked questions

What is Leucopternis in simple terms?

Leucopternis is a Neotropical genus of birds of prey in the family Accipitridae. They are associated with tropical forest, and are uncommon or rare.

Why does Leucopternis 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 Leucopternis?

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 Leucopternis.