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P. Jackson Darlington Jr.

P. Jackson Darlington Jr. is a astronomy 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 P. Jackson Darlington Jr. rather than just read about it. In short: Philip Jackson Darlington Jr. (November 14, 1904 – December 16, 1983) was an American entomologist, field naturalist, biogeographer, museum curator and zoology professor, known for his toughness and determination on field expeditions.

Key takeaways

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

Reference excerpt

Philip Jackson Darlington Jr. (November 14, 1904 – December 16, 1983) was an American entomologist, field naturalist, biogeographer, museum curator and zoology professor, known for his toughness and determination on field expeditions.

Biography Darlington graduated in 1922 from secondary school at Phillips Exeter Academy and then attended Harvard University, where he graduated with bachelor's degree in 1926 and M.S. in 1927. In the 1920s he went on several field expeditions to the West Indies. From 1928 to 1929 he worked as an entomologist for the United Fruit Company near Santa Marta, Colombia. He returned to graduate study at Harvard University with an extensive collection of insects and vertebrates, including a diversity of bird skins, which formed the basis for a 1931 article. He received in 1931 his Ph.D. from Harvard University with a thesis on the Carabidae (ground beetles) of New Hampshire. From 1931 to 1932 he was a member of the Harvard Australian Expedition (1931–1932) led by William Morton Wheeler (his thesis advisor) and returned with a collection of a huge number of insects and 341 mammals. Darlington was a key member of the six-man Harvard Australian Expedition (1931-1932) sent on behalf of the Harvard Museum of Comparative Zoology (MCZ) for the dual purpose of procuring specimens - the museum being "weak in Australian animals and ... desires[ing] to complete its series" - and to engage in "the study of the animals of the region when alive." The mission was success with over 300 mammal and thousands of insect specimens returning to the United States. His companion William E. Schevill reported that "Dr. Darlington's resourceful skill and industry had brought together, from New South Wales and Queensland, not only a large collection of insects, but also over three hundred fifty mammals, representing over sixty species, as well about fifty species of birds; in addition, he had about two hundred fifty reptiles and amphibians." Following his return from the expedition, Darlington was made the MCZ's assistant curator of insects from 1932 to 1940, from 1940 to 1951 the Henry Clinton Fall Curator of Coleoptera, and from 1951 until his retirement in 1971 the Curator of Insects. He was also at Harvard University from 1962 until his retirement in 1971 the Alexander Agassiz Professor of Zoology. Upon the entry of the United States into World War II, Darlington enlisted as a Sanitary Corps entomologist with the rank of first lieutenant in the United States Army Medical Service Corps. He served in the Sixth United States Army during Operation Cartwheel and subsequent campaigns before retiring as a major in April 1944. Before he departed from New Guinea, he was able to collect many specimens of ground beetles and other insects. In 1942, Darlington married Elizabeth Koch, who later accompanied on many of his field expeditions. The couple and their son, Philip Frederick Darlington, spent eighteen months in 1956–1957 for a field study, camping from a truck in the Australian outback.

Scientific fame Darlington presented a theory challenging William Diller Matthew's 1915 theory of faunal dominance.

Darlington's most important contribution to science was his theory of the Old World tropical origin of dominant vertebrate groups. He first sketched out this formulation—which would influence research in zoogeography for a generation—in The Quarterly Review of Biology of 1948, then presented it in full dress in his 1957 text, Zoogeography: The Geographical Distribution of Animals.

Crocodile episode During a wartimefield survey for malarial mosquito larvae in New Guinea, Darlington was sampling stagnant water. Collecting alone in the jungle, he ventured into a stagnant pool by stepping carefully onto a submerged log, but a full-grown crocodile swam up and attacked him. Although seized in the crocodile's jaws, he kicked the crocodile away, escaped and scrambled back to land. With serious blood loss, torn muscles and ligaments in both arms, broken bones in his right arm and piercing wounds in both hands, he hiked back to the U.S. army hospital.

With characteristic understatement, Darlington wrote to his wife of "an episode with a crocodile" but supplied no further details. He was in a cast for several months, convalescing at Dobodura, Papua, where he perfected a left-handed technique for collecting insects: Have someone tie a vial to the end of a stick. Walk out into the forest, jam the stick into the ground, pull the cork out with the left hand, drop the specimens into the vial, replace the cork. He eventually regained full use of his hands and arms.

Frog drop experiment Thomas Barbour was the director of Harvard's Museum of Comparative Zoology from 1927 to 1946. For many years, Barbour and Darlington had friendly arguments about Barbour's advocacy of faunal dispersion by land bridges versus Darlington's advocacy of extreme-wind-borne dispersal of small animals over isolated islands. To test his ideas, Darlington dropped several live frogs from a window on the fifth floor of the Museum. Barbour and a crowd of spectators observed the experiment. The dropped frogs were stunned and remained still for a few seconds, but almost immediately they started to recover and in a few minutes were hopping normally.

Awards and honors 1947 — Guggenheim Fellowship for the academic year 1947–1948 1956 — Guggenheim Fellowship for the academic year 1956–1957 1957 — Daniel Giraud Elliot Medal 1962 — elected a Fellow of the American Academy of Arts and Sciences 1964 — elected a Member of the United States National Academy of Sciences

Legacy Darlington is commemorated in the scientific names of four species of lizards: Anolis darlingtoni, Celestus darlingtoni, Sphaerodactylus darlingtoni and Sphenomorphus darlingtoni.

References

Worked examples

Example 1 — a first encounter with P. Jackson Darlington Jr.

Start with the simplest possible case. Write down what P. Jackson Darlington Jr. claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, 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 P. Jackson Darlington Jr. 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 P. Jackson Darlington Jr. 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 P. Jackson Darlington Jr.

In research
P. Jackson Darlington Jr. appears in astronomy 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 P. Jackson Darlington Jr. 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
P. Jackson Darlington Jr. is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1904 births, 1983 deaths, 20th-century American botanists, so understanding it makes those chapters shorter.
In everyday life
Look for P. Jackson Darlington Jr. 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 P. Jackson Darlington Jr. in 20 minutes

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

Frequently asked questions

What is P. Jackson Darlington Jr. in simple terms?

Philip Jackson Darlington Jr. (November 14, 1904 – December 16, 1983) was an American entomologist, field naturalist, biogeographer, museum curator and zoology professor, known for his toughness and determination on field expeditions.

Why does P. Jackson Darlington Jr. matter?

Because it connects several astronomy 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 P. Jackson Darlington Jr.?

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 P. Jackson Darlington Jr..

Tags

  • 1904 births
  • 1983 deaths
  • 20th-century American botanists
  • 20th-century American naturalists
  • 20th-century American zoologists
  • American entomologists
  • American taxonomists
  • Biogeographers
  • Fellows of the American Academy of Arts and Sciences
  • Harvard University alumni
  • Harvard University faculty
  • Members of the United States National Academy of Sciences

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