astronomy

William Edward Duellman

William Edward Duellman is a astronomy 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 William Edward Duellman rather than just read about it. In short: William Edward Duellman (September 6, 1930 – February 25, 2022) was an American zoologist and herpetologist who specialized in the study of amphibians. He was one of the most influential figures in Neotropical amphibian systematics during the second half of the 20th century.

Key takeaways

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

Reference excerpt

William Edward Duellman (September 6, 1930 – February 25, 2022) was an American zoologist and herpetologist who specialized in the study of amphibians. He was one of the most influential figures in Neotropical amphibian systematics during the second half of the 20th century.

Life and career Duellman graduated from the University of Michigan in 1956. He spent the majority of his academic career at the University of Kansas, where he served as Curator Emeritus of the Division of Herpetology. His research focused primarily on the diversity, systematics, and biogeography of Neotropical amphibians, particularly frogs of Central and South America. From the 1960s through the 1980s, Duellman collaborated extensively with John Douglas Lynch in the description of numerous species originally placed in the genus Eleutherodactylus, many of which were later transferred to the genus Pristimantis. He was married to the zoologist Linda Trueb.

Taxa named in his honor Phyllodactylus duellmani Dixon, 1960 Anolis duellmani Fitch & Henderson, 1973 Pristimantis duellmani (Lynch, 1980) Phyllomedusa duellmani Cannatella, 1982 Duellmania Dubois, 1987 Duellmanohyla Campbell & Smith, 1992 Ranitomeya duellmani (Schulte, 1999) Noblella duellmani (Lehr, Aguilar & Lundberg, 2004) Ceuthomantis duellmani Barrio-Amorós, 2010 Cnemidophorus duellmani McCranie & Hedges, 2013

Selected taxa described Agalychnis annae (Duellman, 1963) Allobates craspedoceps (Duellman, 2004) Atelopus onorei Coloma, Lötters, Duellman & Miranda-Leiva, 2007 Bolitoglossa compacta Wake, Brame & Duellman, 1973 Bryophryne Hedges, Duellman & Heinicke, 2008 Centrolene heloderma (Duellman, 1981) Craugastoridae Hedges, Duellman & Heinicke, 2008 Duellmanohyla ignicolor (Duellman, 1961) Gastrotheca dendronastes Duellman, 1983 Hyloscirtus larinopygion (Duellman, 1973) Hyloxalus pulcherrimus (Duellman, 2004) Isthmohyla graceae (Myers & Duellman, 1982) Nymphargus anomalus (Lynch & Duellman, 1973) Oreobates saxatilis (Duellman, 1990) Phrynopus thompsoni Duellman, 2000 Pristimantis danae (Duellman, 1978) Psychrophrynella Hedges, Duellman & Heinicke, 2008 Rulyrana flavopunctata (Lynch & Duellman, 1973) Scarthyla Duellman & de Sá, 1988

References

Worked examples

Example 1 — a first encounter with William Edward Duellman

Start with the simplest possible case. Write down what William Edward Duellman claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, 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 William Edward Duellman 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 William Edward Duellman 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 William Edward Duellman

In research: William Edward Duellman appears in astronomy 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 William Edward Duellman 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: William Edward Duellman is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1930 births, 2022 deaths, American herpetologists, so understanding it makes those chapters shorter.
In everyday life: Look for William Edward Duellman 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 William Edward Duellman in 20 minutes

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

Frequently asked questions

What is William Edward Duellman in simple terms?

Why does William Edward Duellman matter?

Because it connects several astronomy 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 William Edward Duellman?

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 William Edward Duellman.