biology

Nikolay Grigoryevich Erschoff

Nikolay Grigoryevich Erschoff 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 Nikolay Grigoryevich Erschoff rather than just read about it. In short: Nikolay Grigoryevich Erschoff, also Nikolaj Grigor'jevitsch Erschov, Erschow or Yershov (Russian: Николай Григорьевич Ершов; 23 April 1837 in Moscow – 12 March 1896 in Saint Petersburg) was a Russian entomologist mainly interested in Lepidoptera. He received his secondary education in St.

Key takeaways

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

Reference excerpt

Nikolay Grigoryevich Erschoff, also Nikolaj Grigor'jevitsch Erschov, Erschow or Yershov (Russian: Николай Григорьевич Ершов; 23 April 1837 in Moscow – 12 March 1896 in Saint Petersburg) was a Russian entomologist mainly interested in Lepidoptera. He received his secondary education in St. Petersburg, then, at the request of his father he remained a merchant, but attended lectures on zoology and chemistry at the Medico-Surgical Academy and worked at the Zoological Museum of the Imperial Academy of Sciences . While still at the boarding school, under the guidance of Édouard Ménétries, he studied mainly Russian Lepidoptera . Erschff assembled one of the best collections of butterflies, most of which he brought as a gift to the Zoological Museum of the Imperial Academy of Sciences and is currently stored at the Zoological Institute of the Russian Academy of Sciences in St. Petersburg. Ershov took an active part in the affairs of the Russian Entomological Society.

Selected works 1868. Für die St.-Petersburger Fauna neue Schmetterlinge. Тр. Рус. энтомол. о-ва, т. 5, с. 97–99. 1872. Diagnoses de quelques especes nouvelles de Lépidoptères appartenant a la faune de la Russie Asiatique. Horae Societatis Entomologicae Rossicae. 8: 315–318. as Erschow, N.G. 1874. Lepidopteren von Turkestan. Stettiner Entomologische Zeitung, 35: 386–417. 1877. Diagnosen neuer Lepidopteren aus den verschiedenen Provinzen des Russischen Reiches. Horae Societatis Entomologicae Rossicae 12: 336–348. 1885. Verzeichniss von Schmetterlingen aus Central Sibirien. Mémoires sur les Lépidoptères, 2: 208–211. 1892. Verzeichniss von Schmetterlingen aus Central Sibirien. Mémoires sur les Lépidoptères, VI: 670–672, pl. XVI.

Collection Erschoff's insect collection is in the Zoological Collection of the Russian Academy of Science.

References

Illustrations

Worked examples

Example 1 — a first encounter with Nikolay Grigoryevich Erschoff

Start with the simplest possible case. Write down what Nikolay Grigoryevich Erschoff 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 Nikolay Grigoryevich Erschoff 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 Nikolay Grigoryevich Erschoff 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 Nikolay Grigoryevich Erschoff

In research: Nikolay Grigoryevich Erschoff 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 Nikolay Grigoryevich Erschoff 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: Nikolay Grigoryevich Erschoff is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1837 births, 1896 deaths, 19th-century scientists from the Russian Empire, so understanding it makes those chapters shorter.
In everyday life: Look for Nikolay Grigoryevich Erschoff 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 Nikolay Grigoryevich Erschoff in 20 minutes

Read the reference excerpt below once, without taking notes.
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Work through the three examples above with pen and paper.
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Frequently asked questions

What is Nikolay Grigoryevich Erschoff in simple terms?

Why does Nikolay Grigoryevich Erschoff 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 Nikolay Grigoryevich Erschoff?

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 Nikolay Grigoryevich Erschoff.