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List of least concern molluscs

List of least concern molluscs 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 List of least concern molluscs rather than just read about it. In short: In September 2016, the International Union for Conservation of Nature (IUCN) listed 2437 least concern mollusc species. Of all evaluated mollusc species, 34% are listed as least concern.

List of least concern molluscs — main illustration
List of least concern molluscs — illustration

Key takeaways

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

Reference excerpt

In September 2016, the International Union for Conservation of Nature (IUCN) listed 2437 least concern mollusc species. Of all evaluated mollusc species, 34% are listed as least concern. The IUCN also lists five mollusc subspecies as least concern. No subpopulations of molluscs have been evaluated by the IUCN. This is a complete list of least concern mollusc species and subspecies evaluated by the IUCN.

Gastropods There are 1944 species and three subspecies of gastropod assessed as least concern.

Stylommatophora Stylommatophora includes the majority of land snails and slugs. There are 599 species and one subspecies in the order Stylommatophora assessed as least concern.

Charopids

Streptaxids

Lauriids

Vertiginids

Cochlicellids

Trissexodontids

Helicids Species

Subspecies

Hemicycla glyceia glyceia

Hygromiids

Vitrinids

Chondrinids

Enids

Argnids

Helicodontids

Orculids

Other Stylommatophora species

Littorinimorpha There are 311 species and one subspecies in the order Littorinimorpha assessed as least concern.

Hydrobiids

Cochliopids

Bithyniids Species

Subspecies

Gabbiella humerosa humerosa

Moitessieriids

Assimineids

Pomatiopsids

Amnicolids

Stenothyrids

Iravadiids

Other Littorinimorpha species

Sorbeoconcha There are 132 species and one subspecies in the order Sorbeoconcha assessed as least concern.

Pleurocerids

Melanopsids

Semisulcospirids Black juga (Juga nigrina)

Thiarids

Pachychilids

Paludomids Species

Subspecies

Cleopatra bulimoides bulimoides

Potamidids

Architaenioglossa There are 158 species in the order Architaenioglossa assessed as least concern.

Cyclophorids Cyathopoma blandfordi

Pupinids Pupina difficilis

Diplommatinids

Aciculids

Viviparids

Ampullariids

Craspedopomatids

Lower Heterobranchia species

Cycloneritimorpha There are 40 species in the order Cycloneritimorpha assessed as least concern.

Helicinids

Neritids

Neritiliids Platynerita rufa

Hygrophila species There are 188 Hygrophila species assessed as least concern.

Physids

Acroloxids

Planorbids

Lymnaeids

Chilinids

Latiids Latia neritoides

Neogastropoda

Conids

Eupulmonata

Other gastropod species

Bivalvia There are 296 species and two subspecies in the class Bivalvia assessed as least concern.

Unionida There are 193 species and one subspecies in the order Unionoida assessed as least concern.

Etheriids Bartlettia stefanensis Etheria elliptica

Unionids

Hyriids

Iridinids Species

Subspecies

Chambardia wahlbergi hartmanni

Mycetopodids

Cardiida Boring clam (Tridacna crocea)

Arcida

Venerida There are 96 species and one subspecies in the order Veneroida assessed as least concern.

Dreissenids

Sphaeriids

Cyrenids Species

Subspecies

Corbicula fluminalis natalensis

Donacids

Other Venerida species

Mytilida

Cephalopods There are 197 cephalopod species assessed as least concern.

Octopuses

Sepioloida There are 45 species in Sepioloida assessed as least concern.

Sepiids

Sepiolids

Sepiadariids Koch's bottletail squid (Sepiadarium kochi) Sepioloidea magna

Oegopsina species There are 126 Oegopsina species assessed as least concern.

Enoploteuthids

Hooked squids

Chiroteuthids

Cranchiids

Gonatids

Ommastrephids

Histioteuthids

Pyroteuthids

Other Oegopsina species

Bathyteuthida Deepsea squid (Bathyteuthis abyssicola)

Spirulida Ram's horn squid (Spirula spirula)

See also Lists of IUCN Red List least concern species List of near threatened molluscs List of vulnerable molluscs List of endangered molluscs List of critically endangered molluscs List of recently extinct molluscs List of data deficient molluscs

References

Worked examples

Example 1 — a first encounter with List of least concern molluscs

Start with the simplest possible case. Write down what List of least concern molluscs 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 List of least concern molluscs 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 List of least concern molluscs 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 List of least concern molluscs

In research
List of least concern molluscs 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 List of least concern molluscs 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
List of least concern molluscs is common in secondary-school and first-year university syllabi. It links to neighbouring topics IUCN Red List least concern species, Lists of animals by conservation status, Lists of molluscs, so understanding it makes those chapters shorter.
In everyday life
Look for List of least concern molluscs 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 List of least concern molluscs in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what List of least concern molluscs 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 List of least concern molluscs out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is List of least concern molluscs in simple terms?

In September 2016, the International Union for Conservation of Nature (IUCN) listed 2437 least concern mollusc species. Of all evaluated mollusc species, 34% are listed as least concern.

Why does List of least concern molluscs 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 List of least concern molluscs?

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 List of least concern molluscs.

Tags

  • IUCN Red List least concern species
  • Lists of animals by conservation status
  • Lists of molluscs

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