biology

South American common toad

South American common toad 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 South American common toad rather than just read about it. In short: The South American common toad (Rhinella margaritifera; also mitred toad, in Spanish sapo crestado) is a species complex of toads in the family Bufonidae. They are found throughout the Amazonian South America (Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, and Venezuela) and eastern Panama.

Key takeaways

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

Reference excerpt

The South American common toad (Rhinella margaritifera; also mitred toad, in Spanish sapo crestado) is a species complex of toads in the family Bufonidae. They are found throughout the Amazonian South America (Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, and Venezuela) and eastern Panama. It was originally believed to be a single species, but is now known to represent a complex of more than one. Its natural habitats are primary and secondary lowland, premontane and montane tropical moist forests (including terra firme and seasonally flooded forests). It is a generalist species that can also be found in disturbed areas.

Member species As of 2013, there were 16 formally described species within this complex, as well as an unknown number that are yet to be recognized.

Rhinella acutirostris Rhinella alata Rhinella castaneotica Rhinella dapsilis Rhinella hoogmoedi Rhinella lescurei Rhinella magnussoni Rhinella margaritifera Rhinella paraguayensis Rhinella martyi Rhinella ocellata Rhinella proboscidea Rhinella roqueana Rhinella scitula Rhinella sclerocephala Rhinella stanlaii

References

Illustrations

Worked examples

Example 1 — a first encounter with South American common toad

Start with the simplest possible case. Write down what South American common toad 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 South American common toad 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 South American common toad 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 South American common toad

In research: South American common toad 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 South American common toad 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: South American common toad is common in secondary-school and first-year university syllabi. It links to neighbouring topics Amphibians described in 1768, Amphibians of Bolivia, Amphibians of Colombia, so understanding it makes those chapters shorter.
In everyday life: Look for South American common toad 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 South American common toad in 20 minutes

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

Frequently asked questions

What is South American common toad in simple terms?

Why does South American common toad 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 South American common toad?

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 South American common toad.