biology

List of heteromyids

List of heteromyids 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 heteromyids rather than just read about it. In short: Heteromyidae is a family of small mammals in the order Rodentia and part of the Castorimorpha suborder. Members of this family are called heteromyids and include kangaroo rats, kangaroo mice, pocket mice, and spiny pocket mice.

Key takeaways

List of heteromyids 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 heteromyids to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of List of heteromyids from memory before moving on to harder problems.

Reference excerpt

Heteromyidae is a family of small mammals in the order Rodentia and part of the Castorimorpha suborder. Members of this family are called heteromyids and include kangaroo rats, kangaroo mice, pocket mice, and spiny pocket mice. They are found in North America, Central America, and the northwest tip of South America, primarily in forests, shrublands, and deserts, though some species can be found in grasslands or rocky areas. They range in size from Merriam's pocket mouse, at 5 cm (2 in) plus a 4 cm (2 in) tail, to Nelson's spiny pocket mouse, at 17 cm (7 in) plus a 20 cm (8 in) tail. Heteromyids are omnivores and primarily eat seeds, leaves, and other vegetation, as well as grain and insects. Almost no heteromyids have population estimates, though four species—the giant kangaroo rat, Jaliscan spiny pocket mouse, Nelson's spiny pocket mouse, and Paraguaná spiny pocket mouse—are categorized as endangered species, while the San Quintin kangaroo rat is categorized as critically endangered with a population of fewer than fifty mature adults. The sixty-three extant species of Heteromyidae are divided into three subfamilies: Dipodomyinae, containing twenty–two species of kangaroo rats and kangaroo mice in two genera; Heteromyinae, containing a single genus of fourteen spiny pocket mouse species; and Perognathinae, containing twenty-seven pocket mouse species in two genera. A few extinct prehistoric heteromyid species have been discovered, though due to ongoing research and discoveries, the exact number and categorization is not fixed.

Conventions

The author citation for the species or genus is given after the scientific name; parentheses around the author citation indicate that this was not the original taxonomic placement. Conservation status codes listed follow the International Union for Conservation of Nature (IUCN) Red List of Threatened Species. Range maps are provided wherever possible; if a range map is not available, a description of the heteromyid's range is provided. Ranges are based on the IUCN Red List for that species unless otherwise noted.

Classification

Heteromyidae is a family consisting of sixty-three extant species in five genera. These genera are divided between three subfamilies: Dipodomyinae, containing the kangaroo rats and kangaroo mice; Heteromyinae, or the spiny pocket mice; and Perognathinae, or the pocket mice. Family Heteromyidae

Subfamily Dipodomyinae Genus Dipodomys (kangaroo rats): twenty species Genus Microdipodops (kangaroo mice): two species Subfamily Heteromyinae Genus Heteromys (spiny pocket mice): fourteen species Subfamily Perognathinae Genus Chaetodipus (coarse-haired pocket mice): eighteen species Genus Perognathus (silky pocket mice): nine species

Heteromyids The following classification is based on the taxonomy described by the reference work Mammal Species of the World (2005), with augmentation by generally accepted proposals made since using molecular phylogenetic analysis, as supported by both the IUCN and the American Society of Mammalogists.

Subfamily Dipodomyinae

Subfamily Heteromyinae

Subfamily Perognathinae

References

Sources

Illustrations

Worked examples

Example 1 — a first encounter with List of heteromyids

Start with the simplest possible case. Write down what List of heteromyids 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 heteromyids 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 heteromyids 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 heteromyids

In research: List of heteromyids 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 heteromyids 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 heteromyids is common in secondary-school and first-year university syllabi. It links to neighbouring topics Heteromyidae, Lists of animal species, Lists of rodents, so understanding it makes those chapters shorter.
In everyday life: Look for List of heteromyids 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 heteromyids in 20 minutes

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

Frequently asked questions

What is List of heteromyids in simple terms?

Why does List of heteromyids 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 heteromyids?

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 heteromyids.