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Jambu fruit dove

Jambu fruit dove 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 Jambu fruit dove rather than just read about it. In short: The jambu fruit dove (Ramphiculus jambu) is a smallish colourful fruit dove. It is a resident breeding species in southern Thailand, Malaysia, Brunei and the Indonesian islands of Kalimantan, Sumatra and Java.

Jambu fruit dove — main illustration
Jambu fruit dove — illustration

Key takeaways

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

Reference excerpt

The jambu fruit dove (Ramphiculus jambu) is a smallish colourful fruit dove. It is a resident breeding species in southern Thailand, Malaysia, Brunei and the Indonesian islands of Kalimantan, Sumatra and Java. This species was formerly placed in the genus Ptilinopus.

Taxonomy The jambu fruit dove was formally described in 1789 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's Systema Naturae. He placed it with all the other doves and pigeons in the genus Columba and coined the binomial name Columba jambu. Gmelin gave the locality as Java, he based his description on the "pooni-jamboo" that had been first described in 1783 by the Irish orientalist William Marsden in his book The History of Sumatra. Punai jambu is the Malay name for the species which William wrote comes from the colour of its head which is similar to the flower of the Malay rose apple (Eugenia malaccense) tree or known to him later as jambu merah; this word jambu was used as the bird's specific epithet. The species is monotypic: no subspecies are recognised. The jambu fruit dove was formerly placed in the genus Ptilinopus. A molecular genetic study published in 2014 found that the fruit dove genus Ptilinopus was paraphyletic. In a move towards creating monophyletic genera, nine species including the jambu fruit dove were moved from Ptilinopus to Ramphiculus.

Description

The jambu fruit dove is 23–27 cm (9.1–10.6 in) long and weighs about 42 g (1.5 oz). It is a plump small-headed bird with soft feathers and very distinctive colouring including a white eye ring, orange bill and red legs in both male and female birds. The adult male has a crimson face with a black chin, unmarked dark green upperparts and ivory white underparts, with a pink patch on the breast and a chocolate brown undertail. The female differs from the male by having a dull purple face with a dark chin. The underparts are dull green with a white belly and cinnamon or buff undertail. The immature jambu fruit dove resembles the female but has a green face. The young male acquires its full adult plumage in about 39 weeks from fledging. Immature males are similar in appearance to females. The call is a soft, low coo.

Distribution and habitat The jambu fruit dove is found on the Malay Peninsula through Sumatra (including Riau Archipelago) and the islands of Nias, Bangka and Belitung) to Borneo and perhaps in west Java. It inhabits mangrove swamps and lowland rain forests up to 1,500 m (4,900 ft) and is also found in secondary woodland.

Behaviour and ecology The jambu fruit dove is a shy and inconspicuous bird, camouflaged against the forest canopy by its green plumage. It is usually seen alone or in pairs, but a sizable flock may gather when feeding at a fruit tree. It eats fruit directly from the tree, or from the ground if items have been dropped by hornbills or monkeys. Like other doves, but unlike most birds, it can drink by sucking.

Breeding The male holds a breeding territory, advertised by raising its wings, bobbing its body and cooing. It will defend its territory with a quick peck if the territorial display fails. The female builds a flimsy nest of twigs, roots and grasses, which are collected by her mate, in a tree and lays one or sometimes two white eggs which are incubated for about 20 days to hatching, with a further 12 or more days to fledging.

Relationship with humans The Temoq people in Pahang, Malaysia believe that the female jambu fruit dove is a form of their creator ancestor Maq Sidi.

Conservation status Extensive deforestation in Indonesia and Malaysia means that this dove is now threatened, and sustenance hunting is expected to be further depleting its population. The jambu fruit dove is evaluated as Vulnerable on the IUCN Red List of Threatened Species.

References

External links

BirdLife species factsheet for Ptilinopus jambu Jambu fruit dove at Blue Planet Biomes "Pitangus sulphuratus". Avibase. "Jambu fruit-dove media". Internet Bird Collection. Jambu fruit-dove photo gallery at VIREO (Drexel University) Interactive range map of Ptilinopus jambu at IUCN Red List Audio recordings of Jambu fruit dove on Xeno-canto.

Illustrations

Jambu fruit dove illustration
Jambu fruit dove illustration

Worked examples

Example 1 — a first encounter with Jambu fruit dove

Start with the simplest possible case. Write down what Jambu fruit dove 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 Jambu fruit dove 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 Jambu fruit dove 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 Jambu fruit dove

In research
Jambu fruit dove 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 Jambu fruit dove 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
Jambu fruit dove is common in secondary-school and first-year university syllabi. It links to neighbouring topics Birds described in 1789, Birds of Malesia, Birds of Southeast Asia, so understanding it makes those chapters shorter.
In everyday life
Look for Jambu fruit dove 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 Jambu fruit dove in 20 minutes

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

Frequently asked questions

What is Jambu fruit dove in simple terms?

The jambu fruit dove (Ramphiculus jambu) is a smallish colourful fruit dove. It is a resident breeding species in southern Thailand, Malaysia, Brunei and the Indonesian islands of Kalimantan, Sumatra and Java.

Why does Jambu fruit dove 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 Jambu fruit dove?

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 Jambu fruit dove.

Tags

  • Birds described in 1789
  • Birds of Malesia
  • Birds of Southeast Asia
  • IUCN Red List vulnerable species
  • Near threatened animals
  • Near threatened biota of Asia
  • Ramphiculus
  • Taxa named by Johann Friedrich Gmelin

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