biology

Vasily Yakovlev (zoologist)

Vasily Yakovlev (zoologist) 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 Vasily Yakovlev (zoologist) rather than just read about it. In short: Vasily Evgrafovich Yakovlev (Russian: Василий Евграфович Яковлев; also transliterated Vasiliy Ewgrafowitsch Jakovlev or Vasiliy Yevgrafovich Yakovlev; 9 February 1839 – 15 August 1908) was a Russian zoologist who studied fishes, molluscs and insects. He is not to be confused with Alexander Ivanovich Yakovlev, another entomologist.

Key takeaways

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

Reference excerpt

Vasily Evgrafovich Yakovlev (Russian: Василий Евграфович Яковлев; also transliterated Vasiliy Ewgrafowitsch Jakovlev or Vasiliy Yevgrafovich Yakovlev; 9 February 1839 – 15 August 1908) was a Russian zoologist who studied fishes, molluscs and insects. He is not to be confused with Alexander Ivanovich Yakovlev, another entomologist. His name was spelled Wassily Ewgrafowitsch Jakowlew in French, in which he sometimes wrote. Yakovlev lived in Saint Petersburg, but travelled widely collecting insects in the Crimea, Volga region and Turkestan until he finally travelled and settled in Griffin, GA. Although primarily interested in Coleoptera, Yakovlev also worked on Hemiptera and Lepidoptera. From around 1867 Yakovlev conducted zoological observations in the vicinity of Astrakhan. Yakovlev described Caspian roach (Rutilus caspicus) and Volga undermouth (Chondrostoma variabile).

Publications Partial list

Description de quelques Longicornes paléarctiques nouveaux ou peu connus. Horae Soc. Ent. Ross. 29: 506–514. (1895) De speciebus novis generum Dorcadion Dalm. et Neodorcadion Ganglb.Annuaire Mus. Zool. St.-Pétersburg 4: 237–244 (1899). Etude sue les Neodorcadion da l'Asie Russe (Coleoptera, Cerambycidae)Rev. Russ. d'Entom. 1 (4–5): 146–166 (1901). A new species of Neodorcadion Ganglb. (Coleoptera, Cerambycidae) Rev. Russ. d'Entom. 6: 1–2. (1906) Lepidoptera palaearctica nova descripta a Gr. Grum-Grshimailo. III 290–293 Corrigenda. Auctore G. Jacobson 294–297."Trudy Russkago entomologicheskago obshchestva. Horae ( ) Hemiptera of the Volga region fauna. Uchenye Zapiski Kazanskogo Universiteta, Otdelenie Fiziko-Matematicheskikh i Meditsinskikh Nauk 1[1864]:109–129 (1865). Lucanides nouveaux ou peu connus.Horae Soc. Ent. Ross

References

Semenov-Tian-Shanski, A. (1910) Vasily Evgrafovich Jakovlev. Horae Societatis Entomologicheskago Rossicae 39:1–57+1 portrait (in Russian)

Illustrations

Vasily Yakovlev (zoologist) illustration

Worked examples

Example 1 — a first encounter with Vasily Yakovlev (zoologist)

Start with the simplest possible case. Write down what Vasily Yakovlev (zoologist) 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 Vasily Yakovlev (zoologist) 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 Vasily Yakovlev (zoologist) 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 Vasily Yakovlev (zoologist)

In research: Vasily Yakovlev (zoologist) 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 Vasily Yakovlev (zoologist) 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: Vasily Yakovlev (zoologist) is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1839 births, 1908 deaths, 19th-century zoologists from the Russian Empire, so understanding it makes those chapters shorter.
In everyday life: Look for Vasily Yakovlev (zoologist) 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 Vasily Yakovlev (zoologist) in 20 minutes

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

Frequently asked questions

What is Vasily Yakovlev (zoologist) in simple terms?

Why does Vasily Yakovlev (zoologist) 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 Vasily Yakovlev (zoologist)?

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 Vasily Yakovlev (zoologist).