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J. Laurens Barnard

J. Laurens Barnard 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 J. Laurens Barnard rather than just read about it. In short: J. Laurens Barnard (also known as Jerry Laurens Barnard; February 27, 1928 – August 16, 1991) was an American zoologist, taxonomist, and carcinologist.

J. Laurens Barnard — main illustration
J. Laurens Barnard — illustration

Key takeaways

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

Reference excerpt

J. Laurens Barnard (also known as Jerry Laurens Barnard; February 27, 1928 – August 16, 1991) was an American zoologist, taxonomist, and carcinologist. He was noted for his contributions to amphipod taxonomy.

Early life and education Barnard was born in Pasadena, California on February 27, 1928. In childhood, Barnard showed great curiosity for nature and affection of the environment. When he was twelve, Barnard was inspired to become a scientist after watching a movie made by the Allan Hancock Foundation of the University of Southern California. He was also fond of collections and categorization, as his close friend and colleague J. Darwin Thomas recalled:"Jerry was a born taxonomist. He possessed a great natural curiosity tinged with a sense of urgency. In discussions about his earliest memories of childhood, 'JLB', as he was affectionately called by friends, was always a collector, a surveyor of nature and his environment. This quality was combined with an intense interest in human nature and it drove him always to search for additional information and clarification for the things he collected."In 1947, Barnard graduated from Pasadena Junior College and started his studies in the zoology program at the University of Southern California. While he initially focused on Eastern Pacific corals, he turned to the research of amphipods after taking a tour of crustacean collections with fellow graduate students. In 1949, Barnard started his Ph.D. program at University of Southern California. Working in the Marine Borer Council, which was formed by his professor J. W. Mohr, Barnard focused on Chelura terebrans for his dissertation. He received his Ph.D. in 1953.

Career

Beaudette Foundation After he graduated, Barnard joined the Beaudette Foundation for Biological Research in 1958. There he first worked as Associate Investigator and then promoted to Associate Research Director in 1960. During his years in the Beaudette Foundation, Barnard actively undertook research trips, the most important being the trip to the Baja California Peninsula on which he described several species including those of the genus Liljeborgia, which are associated with specific marine habitats such as burrows of spoon worms. Meanwhile, Barnard was also involved in other research trips, including one to the Galápagos funded by the Galapagos International Scientific Expedition.

National Museum of Natural History and related postings In 1964, Barnard left the Beaudette Foundation and accepted a job at the U.S. National Museum of Natural History at Washington, D.C. There he worked as Associate Curator of Crustacea. Since then, postings took Barnard to the Bishop Museum, the New Zealand Oceanographic Institute, and the Western Australian Museum.

University of Arizona From 1970 to 1974, Barnard worked at the University of Arizona, Tucson after a series of postings. During this period, he frequently visited Puerto Peñasco, Mexico and collected the region, contributing to the taxonomy collections in the Sea of Cortes. Meanwhile, he dedicated to providing scientific education and insights to marine science students and focused on amphipod evolution and Pacific biogeography.

Death and significance Barnard's death in 1991 was a loss for many, especially his colleagues, who praised him for his passion for marine fauna, unselfishness, and affection. His significance went beyond his scientific contributions. L. Watling remarked on Barnard's meaningful life:"To many of us, though, Jerry was more than a source of descriptions and details. Jerry's work, and personality, influenced the lives and careers of many people. His devotion to amphipods and birds, his appreciation of the natural world, and his sense of humor and generosity were an inspiration to those who knew him. He always encouraged us to continue our taxonomic studies, recognizing that for many of us it would mean only part-time devotion to this field. He was also a sympathetic sounding board, always willing to try out new ideas and approaches..."

Research and contributions Barnard was a prominent figure in the field of marine biology, particularly known for his extensive research on crustaceans, especially amphipods. His contributions significantly advanced the understanding of marine biodiversity and ecology, particularly in the context of the northeastern Pacific Ocean. One of Barnard's key contributions was his taxonomic work on amphipods, where he described numerous new species and genera. His seminal work, The Amphipoda of the Pacific Coast of North America, published in 1957, provided a comprehensive overview of the amphipod fauna in this region, detailing their morphologies, ecological roles, and distribution patterns. This work has been foundational for subsequent studies, as it established a baseline for understanding the diversity and ecological significance of amphipods in marine ecosystems. Barnard's research also explored the ecological interactions of amphipods within their environments. He emphasized the importance of amphipods in marine food webs, particularly their roles as scavengers and prey for larger marine organisms. His studies highlighted how environmental factors, such as sediment type and water temperature, influenced amphipod distribution and abundance, thereby contributing to the broader understanding of marine ecosystem dynamics. Barnard was involved in various ecological studies that assessed the impacts of human activities on marine environments. He advocated for the conservation of marine biodiversity, recognizing the threats posed by pollution, habitat destruction, and climate change. His research underscored the necessity of protecting marine habitats to maintain the ecological balance and the health of marine species, which is particularly relevant in the context of ongoing environmental change. Barnard's legacy is reflected in the continued relevance of his research in contemporary marine biology and conservation efforts. His careful documentation and analysis of marine species have provided valuable resources for scientists and conservationists working to protect marine biodiversity. His work serves as a reminder of the intricate connections within marine ecosystems and the importance of preserving these environments for future generations.

References

Illustrations

J. Laurens Barnard illustration
J. Laurens Barnard: Image of summary/93571 Chelura terebrans[4]
Image of summary/93571 Chelura terebrans[4]
J. Laurens Barnard: Liljeborgiidae
Liljeborgiidae

Worked examples

Example 1 — a first encounter with J. Laurens Barnard

Start with the simplest possible case. Write down what J. Laurens Barnard 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 J. Laurens Barnard 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 J. Laurens Barnard 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 J. Laurens Barnard

In research
J. Laurens Barnard 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 J. Laurens Barnard 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
J. Laurens Barnard is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1928 births, 1991 deaths, American scientists, so understanding it makes those chapters shorter.
In everyday life
Look for J. Laurens Barnard 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 J. Laurens Barnard in 20 minutes

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

Frequently asked questions

What is J. Laurens Barnard in simple terms?

J. Laurens Barnard (also known as Jerry Laurens Barnard; February 27, 1928 – August 16, 1991) was an American zoologist, taxonomist, and carcinologist.

Why does J. Laurens Barnard 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 J. Laurens Barnard?

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 J. Laurens Barnard.

Tags

  • 1928 births
  • 1991 deaths
  • American scientists
  • Carcinologists
  • Crustacean taxonomy
  • Smithsonian Institution
  • University of Arizona people
  • University of Southern California faculty

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