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Jo Anne Van Tilburg, right, and Cristián Arévalo Pakarati

The stone faces and human problems on Easter Island

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Excavation of Moai 156 (left) and 157. The visible difference in color and texture, and thus in preservation, is due to soil and depth coverage.

Excavation of Moai 156 (left) and 157. The visible difference in color and texture, and thus in preservation, is due to soil and depth coverage.

Archaeologist Jo Anne Van Tilburg continues to seek insight from the statues and for the living descendants of their makers

In 1981, UCLA archaeology graduate student Jo Anne Van Tilburg first set foot on the island of Rapa Nui, which is commonly called Easter Island, eager to explore her interest in rock art by studying the iconic stone heads that enigmatically survey the landscape.

Van Tilburg was one of just a few thousand people who would visit Rapa Nui each year back then. And though the island to this day remains one the most remote inhabited islands in the world, a surge in annual visitors has placed its delicate ecosystem and archaeological treasures in jeopardy.

“When I went to Easter Island for the first time in ’81, the number of people who visited per year was about 2,500,” said Van Tilburg, director of the Easter Island Statue Project, the longest collaborative artifact inventory ever conducted on the Polynesian island that belongs to Chile. “As of last year the number of tourists who arrived was 150,000 from around the world.”

On April 21, which is Easter Sunday, CBS’ “60 Minutes” will air a special interview with Van Tilburg and Anderson Cooper filmed on the island, talking about efforts to preserve the moai (pronounced MO-eye) — the monolithic stone statues that were carved and placed on the island from around 1100 to 1400 and whose stoic faces have fascinated the world for decades.

Jo Anne Van Tilburg, right, and Cristián Arévalo Pakarati

Jo Anne Van Tilburg, right, and Cristián Arévalo Pakarati

Back in 2003, Van Tilburg, who is research associate at the UCLA Cotsen Institute of Archaeology and director of UCLA’s Rock Art Archive since 1997, was the first archaeologist since the 1950s to obtain permission from Chile’s National Council of Monuments and the Rapa Nui National Park, with the Rapa Nui community and in collaboration with the National Center of Conservation and Restoration, Santiago de Chile, to excavate the moai, which most people didn’t know included torsos, which are buried below the surface, prior to her work and the publicity surrounding it.

Her success in obtaining permission to dig on the island, she credits to a philosophy of “community archaeology.” She has spent nearly four decades among the people of Rapa Nui, listening, learning, making connections, making covenants with the elders of the society, reporting extensively on her findings. Major funding has been provided by the Archaeological Institute of America Site Preservation Fund.

“I think my patience and diligence was rewarded,” she said. “They saw me all those years getting really dirty doing the work. What they don’t like is when people come and think they have all the answers and then leave. That feels to the Rapanui like their history is being co-opted.”

Van Tilburg credits the sustained and generous support of UCLA’s Cotsen Institute as critical to her continued work on the island. She has also made it a point to include UCLA undergraduates from a variety of academic disciplines in the hands-on work on Rapa Nui, including Alice Hom who began as a work study student 20 years ago and who now serves as project manager for the Easter Island Statue Project.

Van Tilburg, who received her doctorate in archaeology from UCLA in 1989, is working on a massive book project harnessing her vast archive that will serve as an academic atlas of the island, its history and the meaning behind the moai. She used the proceeds of a previous book to invest in a local business, the Mana Gallery and Mana Gallery press, both of which highlight indigenous artists. And she helped the local community rediscover their canoe-making history through the 1995 creation of the Rapa Nui Outrigger Club.

Jo Anne Van Tilburg being interviewed by Anderson Cooper of “60 Minutes”

Jo Anne Van Tilburg being interviewed by Anderson Cooper of “60 Minutes”

Her co-director on the Easter Island Statue Project, Cristián Arévalo Pakarati, is Rapanui and a graphic artist by trade. Van Tilburg exclusively employs islanders for her excavation work. She’s traveled the world helping catalog items from the island that are now housed in museums like the Smithsonian in Washington, D.C., and the British Museum in London. Van Tilburg does this to assist repatriation efforts.

Rapa Nui is more commonly known as Easter Island because Dutch explorer Jacob Roggeveen first landed there on Easter Sunday, April 5, 1722. But the people who already lived there (Polynesian descendants of a massive human migration more than 500 years earlier), simply called the place “home,” Van Tilburg said.

“Very few pacific islands originally had names,” Van Tilburg said. “What was named was a landmark or a star or something that brought you to it, but not necessarily the island itself.”

The “60 Minutes” interview also focuses on how current residents of the island are coping with increasing waves of tourism, which is almost always a double-edged sword, but is especially so in a fragile ecosystem, Van Tilburg said.

The now 150,000 annual visitors pale in comparison to the vast numbers of travelers who flock to Egypt’s pyramids and awe-inspiring archaeological sites, she noted.

The intricate rock art on the back of Moai 157.

The intricate rock art on the back of Moai 157.

“But by Rapa Nui standards, on an island where electricity is provided by a generator, water is precious and depleted, and all the infrastructure is stressed, 150,000 is a mob,” she said.

What’s more disheartening is the frequent disrespectful nature of some travelers who ignore the rules and climb on the moai, trample preserved spaces and sit on top of graves all in service of getting a photo of themselves picking the nose of an ancient artifact, Van Tilburg said.

The masses and the increasingly harmful glibness of the travelers are something the 5,700 residents of the island must grapple with. Only in the last decade or so have they been given governance of the national park where the moai are located. In 1995, UNESCO named Easter Island a World Heritage Site, with much of the island protected within Rapa Nui National Park.

Van Tilburg’s original impetus behind studying the moai is rooted in her curiosity about migration, marginalized people and how societies rise and fall.

“Rapa Nui was the last island settled probably in the whole westward movement that took place from southeast Asia across the Pacific,” Van Tilburg said. “I’m interested in what that might signal to us about today and why people are moving around the world the way they are.”

Rapanui society was traditionally hierarchical, led by a class of people who believed themselves God-appointed elites. These leaders dictated where the lower classes could live, how they would work to provide food for the elites and the population at large. The ruling class also determined how and when the moai would be built as the backdrop for exchange and ceremony.

“This inherently institutionalized religious hierarchy produced an inequitable society,” Van Tilburg said. “They were very successful in the sense that their population grew and they were good horticulturists, agriculturists and fisherman. But they were unsuccessful at understanding that unless they managed what they had better, and more fairly, that there was no future.”

Population growth and rampant inequity in a fragile environment eventually led to wrenching societal changes, she said. Internal collapse (as outlined in UCLA professor Jared Diamond’s book “Collapse”) along with colonization and slave-trading in the 1800s caused the population of Rapa Nui to drop to just 111 in the 1870s.

As an anthropologist, Van Tilburg is deeply interested in equity.

“I’m interested in asking why do we keep replicating societies in which people are not equal, because in doing so, we initiate a crisis,” she said. “Inequity is at the heart of our human problems.”

This story originally appeared in the UCLA Newsroom.

Photo of UCLA professor Kent Hill and graduate student Stephanie DeMarco

Scientists identify a key gene in the transmission of deadly African sleeping sickness

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Photo of UCLA professor Kent Hill and graduate student Stephanie DeMarco

Research by UCLA professor Kent Hill and graduate student Stephanie DeMarco, as well as colleagues at the University of Bern, could lead to new approaches to treat African sleeping sickness.

 

Life scientists from UCLA and the University of Bern have identified a key gene in the transmission of African sleeping sickness — a severe disease transmitted by the bite of infected tsetse flies, which are common in sub-Saharan Africa.

The disease is fatal if untreated, as the parasite responsible moves from the bloodstream to the central nervous system. Tens of millions of people in 36 African countries are at risk. There is no vaccine, and conventional drug treatments, which include an arsenic derivative, are antiquated, not very effective and have severe side effects.

The research, published in the journal Nature Communications, could lead to new approaches to treat the disease. It also provides scientists with the first detailed understanding of how the parasite moves through the fly and what genes enable it to do so.

The tiny, single-celled parasite that causes African sleeping sickness in humans, and debilitating diseases in other mammals, is called Trypanosoma brucei, or T. brucei. To become infectious, the parasite must travel through tissues of the fly, from the midgut to the salivary gland — and then into the human or other animal, through a bite.

In the study, Stephanie DeMarco, a UCLA graduate student in molecular biology, and Sebastian Shaw, a graduate student at Switzerland’s University of Bern, worked with two sets of the T. brucei parasite. In one set, they made a mutation in one of the parasite’s genes, called phosphodiesterase-B1, or PDEB1.

Then, they infected 2,000 tsetse flies with some 20,000 parasites each — half of the flies received blood containing normal T. brucei parasites and the other half received blood with the mutated versions.

When tsetse flies drink infected blood, the parasites from the blood typically travel to the midgut and then into a tissue closer to the head, called the proventriculus, before moving on to the salivary glands.

But the researchers saw a striking difference in the proventriculus between the two sets of flies. Among the flies that received the normal parasites, those that had parasites in the gut also had parasites in the proventriculus; but among the 1,000 flies that received mutant T. brucei, only a single one that had parasites in the gut also had a parasite in the proventriculus.

“The normal parasites were able to get to the proventriculus just fine, but for the mutants, we saw only one lonely parasite swimming around,” DeMarco said. “That told us that phosphodiesterase-B1 is really important for the parasites to move from the fly midgut to the proventriculus.”

Shaw said, “When we saw the huge difference between the mutants and normal parasites, at first we couldn’t believe it.”

Kent Hill, a UCLA professor of microbiology, immunology and molecular genetics, and one of the study’s senior authors, said the findings also suggested that there must be a barrier preventing the mutants from getting from the midgut to the proventriculus.

To learn where that barrier is, the scientists made fluorescent parasites and fed the flies a fluorescent dye that stained different tissues in the fly different colors, enabling the researchers to track the parasites.

To go from the midgut to the proventriculus, the parasites have to cross the peritrophic matrix, a sheet-like structure produced by the proventriculus that protects the midgut.

“We found the normal parasites could get through the peritrophic matrix just fine, but the mutants were mostly stuck on one side of it,” DeMarco said.

That finding indicated that the peritrophic matrix was the barrier the scientists were looking for.

The research identifies for the first time the genes that enable the parasites to sense where they are and allow them to survive their journey in fly tissues; those mechanisms had not been understood well until now.

“We think the way the parasites perceive where they are may be similar in the tsetse flies and in mammals — including humans — as they go through barriers and tissues,” said co-senior author Isabel Roditi, a University of Bern professor. “If so, there could potentially be a new drug that might disrupt their ability to do that.”

The researchers also uncovered another clue to African sleeping sickness: In parasites with mutated PDEB1, there was a dramatic increase in the number of cyclic AMP molecules, signaling molecules that play an important role in the disease.

Normal parasites are social and coordinate their behavior, DeMarco said. But the research revealed that without PDEB1, the parasites have too much cyclic AMP in their cells and can’t communicate with one another.

“When Sebastian and Stephanie got rid of PDEB1, the parasites got flooded with cyclic AMP,” Hill said. “Then, when the signal came in telling the parasites, ‘You’re in the stomach and you need to move,’ they couldn’t hear the sound. That’s what we think the problem is for the mutant parasites.”

Hill said the new insights from the UCLA–Bern study could apply to other disease-causing parasites as well. For example, T. brucei parasites are related to parasites found in the U.S. and elsewhere that cause Chagas disease, in which parasites invade heart tissue, leading to inflammation and enlarged heart tissue, and in some cases, heart failure.

Hill’s research is funded by the National Institutes of Health’s National Institute of Allergy and Infectious Diseases and the National Institute of General Medical Sciences. Roditi’s research is funded by the Swiss National Science Foundation and the Howard Hughes Medical Institute.

Photo of Brenda Elaine Stevenson

Brenda Elaine Stevenson receives inaugural 2019 Germany residency at the University of Augsburg

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Photo of Brenda Elaine Stevenson

Brenda Elaine Stevenson

During its annual meeting in Philadelphia, Pennsylvania, the Organization of American Historians (OAH) announced that Brenda Elaine Stevenson, University of California, Los Angeles, has been selected to receive the inaugural 2019 residency at the University of Augsburg.

 

2019 Germany Residency Program
Thanks to a generous grant from the Fritz Thyssen Foundation, the OAH is pleased to continue the Germany Residency Program in American history at the University of Tübingen. Funding from the University of Augsburg will also enable an extension of the program to the University of Augsburg in 2019. The resident scholar at each university will offer a seminar on a U.S. history topic of his or her design.

The residency was announced on April 5 by OAH’s 2019–20 President Joanne Meyerowitz.

 

About the Organization of American Historians
Founded in 1907, the Organization of American Historians (OAH) is the world’s largest professional association dedicated to American history scholarship. With more than 7,500 members from the U.S. and abroad, OAH promotes excellence in the scholarship, teaching, and presentation of American history, encouraging wide discussion of historical questions and equitable treatment of history practitioners. It publishes the quarterly Journal of American History, the leading scholarly publication and journal of record in the field of American history for more than a century. It also publishes The American Historian magazine. Formerly known as the Mississippi Valley Historical Association (MVHA), the association became the OAH in 1965 to reflect a broader scope focusing on national studies of American history. The OAH national headquarters are located in the historic Raintree House on Indiana University’s Bloomington campus.

Photo of Professor Stephanie Jamison.

Professor Stephanie Jamison to share how she finds women in ancient, often patriarchal, texts

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Photo of Professor Stephanie Jamison.

Stephanie Jamison

For four decades, UCLA’s Stephanie Jamison has been somewhat defiantly seeking the stories of women among some of the oldest texts in the world. Jamison’s expertise lies in Indo-Iranian, especially Sanskrit and middle Indo-Aryan languages with an emphasis on linguistics, literature and poetics, religion and law, mythology and ritual, and gender.

Jamison will share some of what she has unearthed on April 3 as she delivers UCLA’s 126th Faculty Research Lecture titled “Looking for Women Between the Lines in Ancient India.” They will be names and stories of women we have likely never heard of before.

“It is often said that the kind of scholarship that I do, which is very traditional examination of written language, cannot be used to study women and marginal groups, because it’s just not there,” said Jamison, distinguished professor of Asian languages and cultures and also Indo-European studies in the UCLA College.

But Jamison would argue that the tools employed through traditional philology (the study of language in literary texts and other written records) are actually well suited for digging beneath the surface of text for exactly those stories, even among the works from colonialist and patriarchal cultures.

Even back as far as 1500 B.C. in India.

For 15 years, Jamison and her co-author Joel Brereton worked on a translation of the “Rig Veda,” India’s oldest Sanskrit text. Published in 2014, theirs is the first full English translation in well over a century of the text that is considered crucial to the understanding both of Indo-European and Indo-Iranian cultural prehistory and of later Indian religious history and high literature.

It’s an era and a place that essentially has no archaeology to help interpret meaning, so we are completely dependent upon text for context, Jamison said. She often summarizes philology as the work of “text and context.”

“In the Rig Veda there was a debate going on underneath the surface about the place of women in religious life,” Jamison said. “There are very enigmatic snatches of narrative about women or female goddesses or demigoddess and they are being deployed by two different sides of the debate as examples of either the terrible or wonderful things that will happen if you let women in. But none of this is actually conveyed on the surface.”

So looking for and finding women in these ancient texts requires burrowing in as deeply as possible, she said, starting with a very close attention to grammar, literary devices and rhetorical devices, alongside trying to uncover the religious system and whatever we can uncover about history.

Jamison was trained as a historical and Indo-European linguist, and earned her doctorate from Yale in 1977. She’s been teaching at UCLA since 2002. She regularly teaches courses in Sanskrit, Middle Indo-Aryan, and old Iranian language and literature, Indo-European and Indo-Iranian linguistics, and undergraduate courses on classical Indian civilization.

Jamison said she also enjoys teaching in a freshman cluster course called “Neverending Stories: Multidisciplinary Perspectives on Myth.”

The Faculty Research Lecture — a UCLA tradition since 1925 — is free and open to the public and will be held on April 3 at 3 p.m. in the Schoenberg Music Building.

Photo of Shane Campbell-Staton

UCLA biology professor uses superheroes to help students sift fact from fiction

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Photo of Shane Campbell-Staton

Shane Campbell-Staton, shown in his UCLA office, says comic books offer a fantastical look at biological concepts.

While Shane Campbell-Staton was working on his dissertation at Harvard in 2013, he walked into a comic book store in Cambridge, Massachusetts, and saw a comic in which Superman fought Muhammad Ali. That was the first comic book he ever bought.

An evolutionary biologist, he spent his days writing about the evolution of a small green lizard that adapted from a warm, sub-tropical environment to the cold winters of Tennessee, North Carolina and Oklahoma. Before going to sleep, he read the comic book as a guilty pleasure.

“Pitting the peak of human performance in Muhammad Ali against the peak of science fiction performance in the Man of Steel, in a ring with gloves on, I had to see how that fight ended,” Campbell-Staton said. (He refuses to spoil the ending by saying who won.)

Campbell-Staton became curious about other comic book universes, and returned to buy a couple of other superhero comics, which he also read before falling asleep. He started to have strange dreams that combined the biology he was thinking about with the comic books he was reading. He had a dream about the Flash – the fastest person in the world whose super speed is coupled with superhuman reflexes – running faster than a bullet. Campbell-Staton woke up thinking about muscle fiber, friction and metabolism — things that fuel a body.

“Science fiction and comic books are a really good way of approaching classic questions in biology from a different angle,” said Campbell-Staton, a UCLA assistant professor of ecology and evolutionary biology, whose research focuses on how reptiles and other animal species adapt to extreme environments, and the physiology, biology and evolution behind that process. “Comic books offer a fantastical look at the same concepts.”

Campbell-Staton started his popular Biology of Superheroes podcast in late 2017, which was a top 20 iTunes science and medicine podcast this January.

This quarter he is teaching a new “Biology of Superheroes” course for juniors and seniors in the life sciences. He uses superheroes such as Batman, Captain America, Black Panther and Wonder Woman, as well as Jurassic Park and zombies, to teach his students the biology of aging, genetics, evolution, genetic engineering, biotechnology, artificial intelligence, the ethics of reviving extinct species, parallel universes, intelligent alien life and how biology shapes modern society.

Photo of Shane Campbell-Staton giving a lecture to students.

Shane Campbell-Staton teaches his “Biology of Superheroes” course at UCLA.

Students read peer-reviewed research journal articles, chapters from science books and comic books. They can create their own science fiction or superhero podcast for their final project, or write a paper or a superhero short novel. Campbell-Staton said he would like to include some of their podcast material on his podcast.

Campbell-Staton said he wants to push students to think about biology in ways they typically would not.

“Regardless of whether these students go into medicine, research, politics, or other fields, my job is to help them sift fact from fiction,” Campbell-Staton said. “If you can sift fact from fiction in Spider-Man, that is a training ground for asking questions about what is true, what is not, and how to tell one from the other when it comes to complex ideas they will confront later in their lives.”

His students agree.

“Usually, we learn the biology of plants and animals. This class is refreshing and cool,” Fayt Sarreal said.

Student Andy Duong said Campbell-Staton cleverly weaves science into the superhero discussions in a creative and engaging way.

In a recent class session, Campbell-Staton raised a question posed by Harvard biologist Stephen Jay Gould (who died in 2002): If you replay the tape of evolution, will you repeatedly get the same results or different results?

The consensus among the students was the results would be different. One said the six-mile-wide asteroid that crashed to Earth 66 million years ago, wiping out the dinosaurs and approximately 75 percent of the world’s animal and plant species, might miss the Earth in an alternate scenario, and if so, the dinosaurs likely would still roam the Earth.

The 2018 movie, “Spider-Man: Into the Spider-Verse,” addresses this question with alternate universes. The character Peter Parker is Spider-Man in one universe, while Gwen Stacy is Spider-Woman in another universe. The same characters appear in different universes, but as a superhero in one universe, a normal person in a different universe, and a supervillain in another universe. The role of determinism in evolution is a lively, ongoing debate in evolutionary biology — one this movie explores through the lens of the multiverse, Campbell-Staton said. Gould argued that replaying the tape of life repeatedly would yield different results, likely not including humans.

An earlier class session covered whether elite athletes have to be extraordinarily gifted genetically. Campbell-Staton discussed specific gene mutations that influence endurance and muscle strength. He plans to teach the “Biology of Superheroes” each year in winter quarter.

When Campbell-Staton was in high school, he took a memorable course on myths and legends that delved into broader issues. “That always stuck with me as a unique and enjoyable learning experience that forced me to push myself,” he said.

UCLA’s Hollywood Diversity Report reveals a few bright spots for women and minorities

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Counting each year’s 200 top-grossing films, the number of women directors nearly doubled from 2016 to 2017, according to the newest UCLA Hollywood Diversity Report, published today by the UCLA College Division of Social Science

UCLA leads development of first-of-its-kind telescope for gamma-ray astronomy

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Researchers using the array will be able to study the gamma rays in the sky with the sensitivity 10 times better than currently achieved. This will help to address some of the most important and perplexing questions in very-high-energy astrophysics.

Chicano Studies Research Center wins diversity award

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Throughout its 50-year history, the Chicano Studies Research Center has advanced diversity in the arts through scholarship, museum exhibitions, archival collections, public programs, community partnerships, professional development and policy-related research and advocacy.

Space physicist wins Royal Astronomical Society 2019 Gold Medal

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Margaret Kivelson, who discovered an ocean inside Jupiter’s moon Europa and a magnetic field generated by neighboring Ganymede, has been awarded the Royal Astronomical Society’s 2019 Gold Medal.

Six UCLA professors named fellows of the American Association for the Advancement of Science

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They are to be honored by the association for their scientifically or socially distinguished efforts to advance science or its applications. New fellows will be presented with an official certificate and a gold and blue rosette pin, representing science and engineering, on Feb. 16, at the association’s annual meeting in Washington, D.C. Fellows will be formally announced in the “AAAS News and Notes” section of the journal Science on Nov. 29.