biology

Kioea

Kioea 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 Kioea rather than just read about it. In short: The kioea or kiowea (Chaetoptila angustipluma) is an extinct species of Hawaiian honeyeater that was endemic to the islands of Hawaii before going extinct around the mid-19th century. Description The kioea was a large bird, about 33 cm (13 in) long, with a long, slightly curved bill.

Key takeaways

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

Reference excerpt

The kioea or kiowea (Chaetoptila angustipluma) is an extinct species of Hawaiian honeyeater that was endemic to the islands of Hawaii before going extinct around the mid-19th century.

Description The kioea was a large bird, about 33 cm (13 in) long, with a long, slightly curved bill. What distinguished the kioea from other honeyeaters was the broad black stripe on its face, and bristle-like feathers on the head and breast. The Hawaiian word "kioea" literally means "stand tall", though its relation to the bird's behavior is unknown.

Taxonomy Although all four known specimens are from the island of Hawaiʻi, fossil records show that related birds existed on other Hawaiian islands as well. The Oahu kioea (Chaetoptila cf. angustipluma) was found on Oahu, Maui and possibly other islands north of Oahu and has an unresolved taxonomic status within the genus Chaetoptila, while the narrow-billed kioea (?Chaetoptila sp.) was found on Maui and possibly others and is more distinct, possibly not warranting a placement in Chaetoptila at all. Until recently, this species and the birds in the genus Moho were thought to belong to the family Meliphagidae (honeyeaters) because they looked and acted so similar to members of that family, including many morphological details. A 2008 study argued, on the basis of a phylogenetic analysis of DNA from museum specimens, that the genera Moho and Chaetoptila do not belong to the Meliphagidae (and only resemble them due to convergent evolution), but instead belong to a group that includes the waxwings and the palmchat; they appear especially close to the silky-flycatchers. The authors proposed a family, Mohoidae, for these two extinct genera. More recent studies support the family Mohoidae as being the sister group to the hypocolius of the family Hypocoliidae.

Extinction The kioea was seemingly in decline even before the first arrival on Hawaiʻi by Europeans, since even native Hawaiians were (and are) seemingly unfamiliar with the bird. The feathers of the kioea were not used in Hawaiian featherwork, nor is it mentioned in any chants or legends. Only four specimens exist in museums. The cause of its extinction is mostly attributed to logging of its habitat (the Hawaiian tropical rainforests), hunting, and the introduction of predators like feral cats, dogs, and pigs.

Gallery

References

External links BirdLife Species Factsheet Native Forest Birds of Hawaiʻi Archived 2016-04-17 at the Wayback Machine

Illustrations

Worked examples

Example 1 — a first encounter with Kioea

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

In research: Kioea 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 Kioea 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: Kioea is common in secondary-school and first-year university syllabi. It links to neighbouring topics Bird extinctions since 1500, Birds described in 1848, Extinct birds of Hawaii, so understanding it makes those chapters shorter.
In everyday life: Look for Kioea 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 Kioea in 20 minutes

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

Frequently asked questions

What is Kioea in simple terms?

The kioea or kiowea (Chaetoptila angustipluma) is an extinct species of Hawaiian honeyeater that was endemic to the islands of Hawaii before going extinct around the mid-19th century. Description The kioea was a large bird, about 33 cm (13 in) long, with a long, slightly curved bill.

Why does Kioea 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 Kioea?

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 Kioea.