biology

Nikolai Severtsov

Nikolai Severtsov 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 Nikolai Severtsov rather than just read about it. In short: Nikolai Alekseyevich Severtsov (Russian: Николай Алексеевич Северцов; 5 November 1827 – 7 February 1885) was a Russian explorer and naturalist. He was among the early promoters of Darwinian ideas in Russia.

Key takeaways

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

Reference excerpt

Nikolai Alekseyevich Severtsov (Russian: Николай Алексеевич Северцов; 5 November 1827 – 7 February 1885) was a Russian explorer and naturalist. He was among the early promoters of Darwinian ideas in Russia.

Life and work Severtsov was born in Khvoshchevatovo, Zemlyansky district, Voronezh, where his father Aleksey Petrovich was a retired guard officer who had served in the Patriotic War of 1812, losing an arm in the Battle of Borodino. He had become interested in natural history after reading Buffon's work as a child and going out on hunts. and studied at the Moscow University where he was influenced by Karl Rouillier who considered what Haeckel called as ecology as "general zoology". His master's dissertation was on the seasonal life of animals in Voronezh province. At the age of eighteen he came into contact with Grigory Karelin and took an interest in central Asia. In 1855 he applied for an associate professor position but failed to be appointed. In 1857, he joined a mission to Syr-Darya. On the expedition to the Syr Darya, he was captured by Kokand people near Fort Perovsky and freed only after a month. He was posted under the Ural Cossack Army from 1860 to 1862. In 1864 he served in the Kokand campaign under Mikhail Chernyayev and was involved in topographic surveys. He made scientific studies, collecting nearly 12 thousand specimens during this period and received an honorary doctoral degree. In 1865–68, he explored the Tian Shan mountains and Issyk-Kul lake. In 1877–78, he explored the Pamir Mountains, following a route close to the current Pamir Highway as far as Lake Yashil Kul on the Ghunt River. Severtsov wrote with great reluctance according to his student Menzbier. One of his works was the Vertical and Horizontal Distribution of Turkestan Wildlife (1873), which included the first description of a number of animals. Among them is a subspecies of argali (wild sheep) later named after him: Ovis ammon severtzovi. He also described many new species and subspecies of birds. The spotted great rosefinch, Carpodacus rubicilla severtzovi, is among those named after him. Severtsov wrote on the geographical variations of birds, which was termed by him as "zoological ethnography". This work attracted Darwin's interest. In 1875 Severtsov visited Darwin in England. Severtsov began to assemble a collection of birds in the estate of Petrovskoe. On 7 February 1885, he was returning home in a carriage along the frozen Ikorts river that feeds into the Don. The carriage broke the ice and plunged. While everyone extricated themselves and attempted to find a warm place nearby, he delayed by searching for his portfolio and collapsed. His driver froze to death. The Institute of Ecology and Evolution of the Russian Academy of Sciences in Moscow is named after his son Alexei Severtsov (1866-1936).

References

External links ПО ДОРОГАМ НЕВЕДОМОГО ТУРКЕСТАНА (1978) ПО ТУРКЕСТАНСКОМУ КРАЮ и ИЗСЛВД0ВАН1Е ГОРНОЙ СТРАНЫ ТЯНЪ-ШАНЯ (1873, reprint 1947)

Illustrations

Worked examples

Example 1 — a first encounter with Nikolai Severtsov

Start with the simplest possible case. Write down what Nikolai Severtsov 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 Nikolai Severtsov 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 Nikolai Severtsov 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 Nikolai Severtsov

In research: Nikolai Severtsov 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 Nikolai Severtsov 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: Nikolai Severtsov is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1827 births, 1885 deaths, 19th-century explorers from the Russian Empire, so understanding it makes those chapters shorter.
In everyday life: Look for Nikolai Severtsov 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 Nikolai Severtsov in 20 minutes

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

Frequently asked questions

What is Nikolai Severtsov in simple terms?

Why does Nikolai Severtsov 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 Nikolai Severtsov?

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 Nikolai Severtsov.