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Juliana's golden mole

Juliana's golden mole 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 Juliana's golden mole rather than just read about it. In short: Juliana's golden mole (Neamblysomus julianae) is a golden mole endemic to South Africa. It is listed as an endangered species due to habitat loss and a restricted range.

Juliana's golden mole — main illustration
Juliana's golden mole — illustration

Key takeaways

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

Reference excerpt

Juliana's golden mole (Neamblysomus julianae) is a golden mole endemic to South Africa. It is listed as an endangered species due to habitat loss and a restricted range. Golden moles are an ancient group of mammals that live mostly below ground. The eponymous Juliana is Juliana Meester, the wife of the South African zoologist who named this species.

Description They have shiny golden coats of dense fur and a streamlined, formless appearance. They have no visible eyes or ears; in fact, they are blind – the small eyes are covered with hairy skin. The ears are small and are hidden in the animal's fur. Juliana's golden mole weighs 21–75 g (0.74–2.65 oz). This type of mole shares many physical characteristics with a typical golden mole, but they differ in size, tend to be smaller than other moles, and do not possess an as exaggeratedly sized middle ear bone. The Juliana's golden mole is well adapted for burrowing, they have strong hardened noses and smooth rounded bodies along with large front claws best suited for digging through the ground and webbed feet that help push soil out of the way as it makes its way through the substrate.

Ecology The Juliana's golden mole are solitary animals that live just under the soils surface, along weathered rocky ridges of quartzite or granite. It is also common in well-irrigated gardens. Usually two young are born, sometimes one. Golden moles eat invertebrates such as insects, earthworms and snails. Their young are born in a grass-lined cavity in the ground. Golden moles usually dig their tunnels just below the surface of the ground. The main feeding activity is in the late afternoon and at night. They exhibit torpor daily during the morning and early afternoon. This type of mole has very specific requirements for its habitat and it tends to need areas that have good tree cover along with hard grainy/sandy soil that is well draining. Since it requires very particular habitat regions this contributes to the vast separation between populations and the need for conservation of this species. Juliana's golden mole is very hard to locate since it spends most of its time underground and their tunnels are not easily visible apart from the few openings they create during the summer rainy seasons. This makes it difficult to gather necessary information about this species and currently little is still known about Juliana's golden mole.

Status Juliana's golden mole is found in Pretoria (Gauteng), Nylstroom (Limpopo Province) and Kruger National Park (Mpumalanga), South Africa. Where it occurs, Juliana's golden mole can be locally common. However, its occurrence is extremely patchy within its limited geographic range. Most other golden moles are considered wide spread but Juliana's golden mole lives in more isolated populations that can be separated by hundreds of kilometers. There are no data on population size. The population on Bronberg Ridge, Pretoria East, is severely affected by ongoing intensive urbanization and a mining operation, and it is considered to be critically endangered. The Nylsvley population in Limpopo occurs in farmlands (adjoining the Nylsvley Nature Reserve) that are subject to habitat alteration and potential degradation. Another threat is habitat fragmentation which causes obstruction to animal movement; this results in in-breeding which increases the possible risk of extinction. The International Union for Conservation of Nature now rates this species as "endangered". Conservation efforts of this species are limited and not well managed, this is mainly due to a lack of information on the Juliana's golden mole and their habitat regions. This species has not been studied extensively since it is hard to locate and gather information on. In order for more protection and conservation efforts to take place more studies needs to be conducted on this animal. Currently, this species of mole is being monitored when possible and some educational efforts are taking place to spread more awareness of the threats to and existence of this specific mole. Two out of the three populations are on protected land but more effort towards habitat protection is an important step in conserving Juliana's golden mole population.

References

Further reading Bronner, G.N.; Jenkins, P.D. (2005). "Order Afrosoricida". In Wilson, D.E.; Reeder, D.M (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. p. 81. ISBN 978-0-8018-8221-0. OCLC 62265494. Freitag, S.; Jaarsveld, A.S.V. (1997). "Relative occupancy, endemism, taxonomic distinctiveness and vulnerability: prioritizing regional conservation actions". Biodiversity and Conservation. 6 (2): 211–232. Bibcode:1997BiCon...6..211F. doi:10.1023/A:1018392019594. "Juliana's Golden Mole". Animal Info. 2006. Retrieved 15 April 2024.

External links IUCN – case study Archived 2008-02-20 at the Wayback Machine ARKive – images and movies of the Juliana's golden-mole (Neamblysomus julianae)

Illustrations

Juliana's golden mole illustration
Juliana's golden mole illustration
Juliana's golden mole illustration
Juliana's golden mole: The regions in which Juliana's golden mole has been located
The regions in which Juliana's golden mole has been located

Worked examples

Example 1 — a first encounter with Juliana's golden mole

Start with the simplest possible case. Write down what Juliana's golden mole 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 Juliana's golden mole 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 Juliana's golden mole 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 Juliana's golden mole

In research
Juliana's golden mole 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 Juliana's golden mole 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
Juliana's golden mole is common in secondary-school and first-year university syllabi. It links to neighbouring topics Afrosoricida, Endangered fauna of Africa, Endemic fauna of South Africa, so understanding it makes those chapters shorter.
In everyday life
Look for Juliana's golden mole 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 Juliana's golden mole in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Juliana's golden mole means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Juliana's golden mole out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Juliana's golden mole in simple terms?

Juliana's golden mole (Neamblysomus julianae) is a golden mole endemic to South Africa. It is listed as an endangered species due to habitat loss and a restricted range.

Why does Juliana's golden mole 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 Juliana's golden mole?

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 Juliana's golden mole.

Tags

  • Afrosoricida
  • Endangered fauna of Africa
  • Endemic fauna of South Africa
  • IUCN Red List endangered species
  • Mammals described in 1972
  • Mammals of South Africa

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