biology

Transcaucasian ratsnake

Transcaucasian ratsnake 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 Transcaucasian ratsnake rather than just read about it. In short: The Transcaucasian ratsnake (Zamenis hohenackeri), also commonly known as the Gavand snake, is a species of nonvenomous ratsnake in the subfamily Colubrinae of the family Colubridae. The species is native to Western Asia and the Middle East.

Key takeaways

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

Reference excerpt

The Transcaucasian ratsnake (Zamenis hohenackeri), also commonly known as the Gavand snake, is a species of nonvenomous ratsnake in the subfamily Colubrinae of the family Colubridae. The species is native to Western Asia and the Middle East. There are three recognized subspecies.

Etymology The specific name, hohenackeri, is in honor of Rudolph Friedrich Hohenacker, who was a Swiss missionary, physician, and naturalist.

Geographic range Zamenis hohenackeri is found in Armenia, Azerbaijan, Georgia, Iran, Iraq, Israel, Lebanon, southwestern Russia, Syria, and Turkey.

Description Zamenis hohenackeri may attain a total length of 65 cm (26 in), which includes a tail 11 cm (4.3 in) long. Dorsally, it is gray with four alternating series of dark brown spots. Ventrally, it is reddish or yellowish, marbled or spotted with gray. On the head, there is a diagonal black streak from the eye to the corner of the mouth, and a vertical black line below the eye.

Habitat Zamenis hohenackeri is found in mountainous areas, at altitudes of 100–3,000 m (330–9,840 ft), in a variety of habitats, from dry to wet, including agricultural areas.

Behavior Zamenis hohenackeri is terrestrial and diurnal.

Reproduction Zamenis hohenackeri is oviparous. Clutch size is 3–7 eggs.

Subspecies Three subspecies are recognized as being valid, including the nominotypical subspecies.

Zamenis hohenackeri hohenackeri (Strauch, 1873) Zamenis hohenackeri lyciensis Hofmann, Mebert, Schulz, Helfenberger, Göçmen & Böhme, 2018 Zamenis hohenackeri tauricus (F. Werner, 1898) Nota bene: A trinomial authority in parentheses indicates that the subspecies was originally described in a genus other than Zamenis hohenackeri.

References

Further reading Strauch A (1873). "Die Schlangen des Russischen Reichs, in systematischer und zoogeographischer Beziehung ". Mémoires de l'Académie Impériale des Sciences de Saint-Pétersbourg, [Seventh Series] 21 (4): 1-288 + Plates I-VI. (Coluber hohenackeri, new species, pp. 69–73 + Plate II, figures a-b). (in German and Latin). Utiger, Urs; Helfenberger, Notker; Schätti, Beat; Schmidt, Catherine; Ruf, Markus; Ziswiler, Vincent (2002). "Molecular systematics and phylogeny of Old World and New World ratsnakes, Elaphe Auct., and related genera (Reptilia, Squamata, Colubridae)". Russian Journal of Herpetology 9 (2): 105–124. (Zamenis hohenackeri, new combination). Werner F (1898). "Über einige neue Reptilien und einen neuen Frosch aus dem cilisischen Taurus ". Zoologischer Anzeiger 21 (555): 217–223. (Coluber tauricus, new species, pp. 217–220). (in German).

Illustrations

Worked examples

Example 1 — a first encounter with Transcaucasian ratsnake

Start with the simplest possible case. Write down what Transcaucasian ratsnake 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 Transcaucasian ratsnake 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 Transcaucasian ratsnake 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 Transcaucasian ratsnake

In research: Transcaucasian ratsnake 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 Transcaucasian ratsnake 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: Transcaucasian ratsnake is common in secondary-school and first-year university syllabi. It links to neighbouring topics Colubridae stubs, IUCN Red List least concern species, Reptiles described in 1873, so understanding it makes those chapters shorter.
In everyday life: Look for Transcaucasian ratsnake 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 Transcaucasian ratsnake in 20 minutes

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

Frequently asked questions

What is Transcaucasian ratsnake in simple terms?

Why does Transcaucasian ratsnake 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 Transcaucasian ratsnake?

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 Transcaucasian ratsnake.