Categories
Accolades Blog Faculty Spotlight Newsletter Research Science Communication Special Events

Professors take part in journal’s test for peer review bias in major international study

[vc_row][vc_column][vc_column_text]From VT News | September 27, 2019

We all experience bias at some point in our lives: It can be unconscious or conscious, innate or learned, and scientific journals want to know if and why this is happening in their peer review process.

Functional Ecology, which is a highly respected journal in the field of ecology, is taking the lead by conducting a first-of-its-kind comprehensive study that will hopefully put an end to the mystery that surrounds the cause of bias in scientific publishing communities.

Virginia Tech professors Dana Hawley and Bill Hopkins are associate editors for the journal and they will be managing some of the paper submissions for the study, which launched on Sept. 5.

“As scientists, we like to think that we are always objective. That’s the foundation of science. But scientists are human beings too. No one is ever completely objective when it comes to something like evaluating someone else’s work. Because peer review is the key checkpoint determining whether scientific results are published or not, the idea of making this review as objective as possible is really important,” said Hawley, a professor in the Department of Biological Sciences in the College of Science.

Although there are different kinds of bias that will be addressed in this study, Functional Ecology noticed that one bias, in particular, receives more attention in previous studies of peer review bias than others: gender bias.

In fact, gender bias receives the most attention because the results of these studies have been surprisingly inconclusive. Where some studies have shown that female authors receive lower acceptances into journals, others have shown that female authors receive higher peer review scores compared to males.

“I will say that, coming into this Functional Ecology initiative, I assumed that the effectiveness of double-blind peer review for addressing issues of gender bias was more supported by data. And what I am learning is that it’s not clear,” said Hopkins, director of the Global Change Center at Virginia Tech and professor in the Department of Fish and Wildlife Conservation in the College of Natural Resources and Environment.

This study will examine bias related to gender, institutional prestige, author reputation, and race on a large, randomized scale over multiple years.

“I have definitely had times where I, as an author and mentor, have worried for my female graduate students, that certain reviewers may have been influenced by their names – and you just have to wonder,” said Hawley, an affiliated faculty member of the Global Change Center at Virginia Tech.

“It is really upsetting as a mentor, because you want all of your students to be viewed equally as a scientist and nothing else. Of course, we are all human. We just don’t know what things influence the tone of the reviewer or the ranking that they gave that paper.”

In terms of female authors, there is a pattern that suggests that there is a relatively low percentage of women that publish in highly regarded journals, such as Science. This could be due to the fact that women are generally less represented at higher ranks in academia, but it could also partly be a result of the peer review process.

Typically, manuscripts that are published in a peer review journal are single-blind, which means that the author does not know, or is “blinded” from, the identity of the reviewer. However, this study will be a double-blind trial, where neither the person reviewing the paper knows the identity of the authors nor do the authors know the identity of the reviewer.

Though this study is limited to the field of ecology, a field which has relatively equal gender representation compared to other fields, it can have implications for other scientific journals and the scientific community as a whole. But for Hopkins, he said that it all depends on the results of the study.

“If you look at the studies that have been done so far, none of them are as comprehensive as the multi-year study that Functional Ecology is conducting. There is some evidence that double blind is an improvement over single blind review, and there’s some evidence that it’s not an improvement. Taken together, the conflicting results of past studies clearly suggest that we need a large-scale randomized trial and that is exactly what Functional Ecology is doing.”

“I think it’s really an important study just because it sends a message that the whole culture of science is really starting to take bias seriously,” said Hawley.

~ Written by Kendall Daniels

 

[/vc_column_text][/vc_column][/vc_row]

Categories
Accolades Announcements

Six College of Science faculty receive fellowships from Board of Visitors to support research

[vc_row][vc_column][vc_column_text]From VT News | September 19, 2019

Six faculty members in the Virginia Tech College of Science were honored with faculty fellowships by the Virginia Tech Board of Visitors.

The awards were approved at the August meeting of the Board of Visitors. Each of the three-year fellowships is dedicated to recognizing faculty for extraordinary research and teaching, and for recruiting scholars with exceptional records of achievement. All recipients were nominated by College of Science Dean Sally C. Morton and the College of Science Honorifics Committee.

“Our nationally renowned faculty are working every day to address problems that challenge our society, and they bring visibility and recognition to Virginia Tech,” said Sally C. Morton, dean of the College of Science. “It’s my privilege to award these fellowships, which wouldn’t be possible without the alumni who support us.”

College of Science Faculty Fellowship

The College of Science Faculty Fellowship was established in 2019 through support from alumni and friends of the college. Recipients are:

Professor Martha Ann Bell poses at Torgersen bridge

Martha Ann Bell is a professor in the Department of Psychology, an adjunct professor in the Virginia Tech School of Neuroscience, and an affiliated faculty member of the Department of Human Development and Family Science in the College of Liberal Arts and Human Sciences. Her research focuses on developmental cognitive neuroscience where she studies frontal lobe functioning in typically developing infants and children, and examines individual differences in brain and behavior. Her research informs the basic science literature in developmental psychology, as well as clinical psychology and intervention science.

Her research has brought in more than $6 million from the U.S. National Institutes of Health. Her awards include the 2019 Senior Investigator Award from the International Society for Developmental Psychobiology. Bell earned a bachelor’s degree in home economics from Carson-Newman College in 1978, a master’s degree in child and family studies from the University of Tennessee in 1983, and a Ph.D. in human development from the University of Maryland in 1992.

Xinwei Deng poses for a photo at Hutchinson Hall

Xinwei Deng, an associate professor in the Department of Statistics, is a data science researcher working with both design of experiments and machine learning for large scale analysis, learning, and decision-making processes. His research focuses on big data, often streaming in real-time, with a goal of designing decision analytics that are efficient, accurate, fair, and robust. Since joining Virginia Tech in 2011, he has brought in more $500,000 in research funding from such agencies as the National Science Foundation (NSF), the Commonwealth Center for Advanced Manufacturing, and the Proctor & Gamble Company.

Prior to joining Virginia Tech, Deng was a visiting assistant professor at University of Wisconsin-Madison. He earned a bachelor’s in mathematics from China’s Nanjing University in 2003 and a Ph.D. in statistics from the Georgia Institute of Technology in 2009.

Roger Moore and Mojdeh Khatam-Moore Faculty Fellowship

The Roger Moore and Mojdeh Khatam-Moore Faculty Fellowship was established in 2019 by a donation from its namesakes, Roger Moore ’64 and his wife, Mojdeh Khatam-Moore. Recipients are:

Cayelan Carey poses at the Duck Pond on campus

Cayelan Carey, an associate professor in the Department of Biological Sciences, studies and forecasts future water quality in a suite of lakes and reservoirs, including those in the Roanoke, Virginia, region. Her work directly connects freshwater ecology and data science, using environmental sensors to collect real-time data. Her research and teaching record have been recognized with substantial funding and awards, including six NSF grants totaling $5.4 million, the 2018 Yentsch-Schindler Award from the Association of the Sciences of Limnology and Oceanography, and the Department of Biological Science’s Outstanding Faculty Research Award in both 2015 and 2018 and its Outstanding Teaching Award in 2019.

Before coming to Virginia Tech in 2013, Carey was a Fulbright Fellow at the Institute of Limnology of Uppsala University, Sweden, and a postdoctoral research associate at the Center of Limnology, University of Wisconsin-Madison. She earned a bachelor’s degree in environmental biology from Dartmouth College in 2006 and Ph.D. in ecology and evolutionary biology from Cornell University in 2012.

Patrick Huber poses in front of Roberson Hall on campus

Patrick Huber, a professor in the Department of Physics, focuses on neutrino physics. Since joining Virginia Tech in 2008 Huber has helped to build a world-leading program in neutrino physics, both in basic science and in global and national security. As part of the Center for Neutrino Physics at Virginia Tech, Huber co-authored the Light Sterile Neutrino White Paper, which has since received more than 600 citations and eventually paved the way for the Intermediate Neutrino Program, which led to the PROSPECT experiment. Additionally, the GLoBES software package that he co-developed is the standard for computing the physics sensitivity of many large neutrino experiments.

Huber is the director of the Center for Neutrino Physics  and was named director of the Integrated Security Education and Research Center in 2017. His research has received more than $2 million in federal funding. His many awards include the Fermilab Distinguished Scholarship and the Breakthrough Prize in Fundamental Physics, both in 2016. He earned a bachelor’s degree in general physics in 2000 and a Ph.D. in theoretical particle physics in 2003, both from Technical University Munich.

Patricia Caldwell Faculty Fellowship

The Patricia Caldwell Faculty Fellowship was established in 2019 by a donation from its namesake, Patricia Caldwell ’71. Recipients are:

Amanda Morris in her chemistry lab

Amanda Morris, an associate professor in the Department of Chemistry, focuses on mimicking the chemistry of nature’s photosynthetic system — a complex assembly of light-harvesting arrays, electron transfer relays, and catalytic centers — that converts sunlight into chemical fuels. Her work has advanced how a new class of molecular materials and metal organic frameworks can effectively serve in each required component of photosynthetic activity, major implications for renewable energy production and storage.

Since joining Virginia Tech in 2011, Morris has won numerous awards, including the Inter-American Photochemical Society Young Investigator Award in 2017, an Alfred P. Sloan Research Fellow in 2016, and a National Science Foundation CAREER award in 2016.  Morris earned a bachelor’s degree from Pennsylvania State University in 2005 and a doctorate from Johns Hopkins University in 2009.

Shuhai Xiao poses at South Hahn Hall

Shuhai Xiao, a professor and historical geobiologist in the Department of Geosciences, focuses his research on understanding the complex interaction of biological and environmental evolution. His work has touched on the critical transitions in Earth history using fossils and geochemical data, and has appeared in such journals as Science, Nature, and Proceedings of the National Academy of Sciences.

His awards are numerous, including the 2006 Charles Schuchert Award, the 2010 John Simon Guggenheim Fellowship, the 2010 Virginia Tech Alumni Award for Excellence in Research, the 2014 Sir Albert Charles Seward Memorial Lecturer, the 2016-17 Phi Beta Kappa visiting scholarship, and the 2017 Virginia Outstanding Scientist Award. He earned a bachelor’s and master’s degrees in geology from Peking University in 1988 and 1991, and master’s and doctoral degrees in organismic and evolutionary biology from Harvard University in 1996 and 1998, respectively.

 

[/vc_column_text][/vc_column][/vc_row]

Categories
Blog Interfaces of Global Change IGEP Newsletter Science Communication Student Spotlight

IGC 2019 Capstone Course- Flashtalks

[vc_row][vc_column][vc_column_text][/vc_column_text][vc_column_text]The Interfaces of Global Change IGEP is an innovative interdisciplinary program that address the multidimensional aspects of global change.  In the capstone course for the IGC IGEP, students grapple with the role that science and scientists play informing public understanding.

How can you most productively engage with various stakeholders? In order to create the best environmental policies, how can you identify and involve the appropriate experts in the process? How do you encourage fruitful collaboration? And, when presenting to a diverse audience, what needs to be adapted?

Practicing effective communication of science is a top priority of the course, and today, IGC capstone students practiced condensing their research topics into a three-minute flash talk.

Check out a few snapshots from their outstanding speeches. Cheers to a job well done!

[/vc_column_text][/vc_column][/vc_row][vc_row][vc_column][vc_gallery interval=”3″ images=”32695,32694,32693,32692,32691,32690,32689,32688,32678″ img_size=”large”][/vc_column][/vc_row]

Categories
Blog Campus Seminar Announcements Climate Change Environmental Justice Food & Agriculture Global Change Newsletter Other Sponsored Lectures Special Events

Thirteenth Annual Sustainability Week kicks off

[vc_row][vc_column][vc_column_text]From VT News | September 13, 2019

The 13th annual Sustainability Week, an interactive partnership among Virginia Tech Office of Sustainability, the Town of Blacksburg, and local citizens group Sustainable Blacksburg that highlights sustainability efforts in the community and on campus, is underway.

Sustainability Week 2019 kicked off on campus on Sept. 14 with Green Tailgating at the Virginia Tech Furman University football game. More than 20 events are scheduled through Sept. 22.

As part of Virginia Tech’s commitment to sustainability, the Game Day Green Team recycling initiative hands out green recycling bags to tailgaters during home games and strives to build awareness around recycling, waste reduction, and sustainability.

Some of the other events being held during Sustainability Week 2019 on campus and in the community include:

  • Tech Sustainability Open Forum (Sept. 16, 1–2:30 p.m.): This event will provide a brief overview of Virginia Tech’s successful campus sustainability program and will seek audience ideas for continued improvement. Representatives from the Office of Sustainability, Student Affairs, and the Alternative Transportation Department will highlight current programs and initiatives and explore future opportunities. RSVP.
  • Active Commute Celebration (Sept. 19, 8 a.m.–1 p.m.): This event offers an opportunity for the Virginia Tech community to learn more about available alternative transportation options around campus. There will also be giveaways and snacks. RSVP.
  • Sustainable Eats Bike Tour – A Glimpse of Sustainable Practices at Virginia Tech’s Dining Halls (Sept. 17, 12:30–2:30 p.m.): Join the first-ever “Sustainable Eats Bike Tour.” Sample and learn more about our delicious, local, and sustainably sourced eats all while taking a scenic bike tour around campus.
  • Electric Car Display (Sept. 21, 1–3 p.m.): Join the nationwide celebration to heighten awareness of today’s widespread availability of plug-in vehicles and the benefits of all-electric and plug-in hybrid-electric cars, trucks, motorcycles, and more. RSVP.
  • And many more.

Click here to view the full schedule of Sustainability Week 2019 events.

Sustainability Week Blacksburg

[/vc_column_text][/vc_column][/vc_row]

Categories
Blog Campus Seminar Announcements Climate Change Environmental Justice Food & Agriculture Global Change Newsletter Other Sponsored Lectures Special Events

Best-selling author Roger Thurow to speak about the global food crisis

[vc_row][vc_column][vc_column_text]

From VT News | September 12, 2019

On Sept. 16, the Virginia Tech College of Agricultural and Life Sciences Global Programs Office will host best-selling author Roger Thurow for a series of public events, as part of its Global Agricultural Productivity Initiative.

Thurow is an expert on agricultural development and speaks often on high-visibility platforms related to nutrition, hunger, and agriculture in the United States, Europe, and Africa. For 20 years, he was a foreign correspondent based in Europe and Africa. His coverage of global affairs spanned the Cold War, the fall of the Berlin Wall, the release of Nelson Mandela, the end of apartheid, the wars in the former Yugoslavia, and the humanitarian crises of the first decade of this century – along with 10 Olympic Games.

In 2003, he and Wall Street Journal colleague Scott Kilman wrote a series of stories on famine in Africa that was a finalist for the Pulitzer Prize in International Reporting. Their reporting on humanitarian and development issues was also honored by the United Nations. Thurow and Kilman are authors of the book, “ENOUGH: Why the World’s Poorest Starve in an Age of Plenty.” In 2009, they were awarded Action Against Hunger’s Humanitarian Award.

Roger Thurow, a former foreign correspondent for the Wall Street Journal is noted for his writing about the politics of world hunger.

 

He is also the author of “The Last Hunger Season: A Year in an African Farm Community on the Brink of Change,” and his most recent book, “The First 1,000 Days: A Crucial Time for Mothers and Children—and the World,” was published in May 2016. Thurow joined the Chicago Council on Global Affairs as senior fellow on global food and agriculture in January 2010.

 

[/vc_column_text][/vc_column][/vc_row][vc_row][vc_column][vc_video link=”https://www.youtube.com/watch?v=c2NaR606jug”][/vc_column][/vc_row][vc_row][vc_column][vc_column_text]

Events open to the public: Sept. 16

Politics of Food Security and Nutrition: 9 – 10:30 a.m., Newman Library Multipurpose Room
The global food price crisis of 2007-08 was a wake-up call for the global community, demonstrating that the world is unprepared to sustainably produce enough nutritious food for a growing population.

Thurow will provide insights into how policymakers are addressing the complex environmental, economic, and human challenges to achieving food and nutrition security. He will also share stories about the people whose lives and livelihoods hang in the balance, including African smallholder farmers and undernourished mothers and children around the world.

This event is co-hosted by the Virginia Tech Institute for Policy and Governance and the Community Change Collaborative.

The Last Hunger Season: 12:30 – 2 p.m.,
Fralin Hall Auditorium
Africa’s small farmers are living and working essentially as they did in the 1930s. Without mechanized equipment, fertilizer, or irrigation; using primitive storage facilities, roads, and markets; they harvest only one-quarter the yields of Western farmers. In 2011, a group of farmers in Kenya came together to change their odds for success — and their families’ futures. Thurow spent a year following the progress of four women farmers in this community and recorded their struggles and aspirations in his book, “The Last Hunger Season.”

He will share the stories of these remarkable women and their determination to end the hunger season. His presentation will be followed by a panel discussion about the challenges and opportunities for smallholder farmers in Africa.

[/vc_column_text][/vc_column][/vc_row]

Categories
Blog Campus Seminar Announcements Climate Change Global Change Interfaces of Global Change IGEP Newsletter Other Sponsored Lectures

Climate Journalist Sara Peach Set to Visit Blacksburg September 26-27

[vc_row][vc_column][vc_column_text]From Virginia Water Resources Research Center | September 12, 2019

The Center for Communicating Science is thrilled to welcome Sara Peach, climate journalist and speaker, to Blacksburg this month!

Peach, who holds a master’s degree in journalism and a bachelor’s degree in environmental studies from UNC-Chapel Hill, has been reporting on climate change and other environmental issues for nearly a decade. Her experience is vast, with work published in National Geographic, Scientific American, and Environmental Health News, among others.

[/vc_column_text][vc_column_text]Peach serves as the Senior Editor of Yale Climate Connections, a multimedia service providing daily reporting, commentary, and analysis on the issue of climate change. This is also where she writes the “Ask Sara” climate advice column.

On September 26 at 5:30 p.m., Peach will be joining us as our September Science on Tap speaker at Rising Silo Brewery, sharing her talk “What to Expect When You’re Expecting Climate Change.” At this event, Peach will share her insights on climate change, how it affects you, and what you can do about it. She will also share some of the interesting questions she’s addressed in her advice column, “Ask Sara,” and open the discussion to questions from the audience.[/vc_column_text][vc_column_text]

Peach will also lead a lunchtime workshop, “The Humorous Side of the Climate Story: A workshop on the bizarre, unexpected, and delightfully weird side of climate change,” on September 27 at 12 p.m. Peach’s Friday workshop will allow her to share experiences from her years of communicating about climate change issues.

Peach will tell some of the stranger stories she’s encountered as a climate journalist – for example, did you know climate change could mess up homicide investigations? She will also discuss some new approaches to discussing climate change with friends and family.

Lunch will be provided at the Friday workshop; please RSVP here. The talk and lunch will be held in the Steger Hall Conference Center, 1015 Life Science Circle.

Peach’s visit to Virginia Tech is sponsored by Virginia Tech’s Center for Communicating Science, the School of Public and International Affairs/Urban Affairs and Planning, and Center for Humanities, with support from the Department of Communication, the Global Change Center, and Sigma Xi, the Scientific Research Society.

Both of these events are open to the public free of charge. We look forward to seeing you!

By Lauren Holt, Center for Communicating Science student intern[/vc_column_text][/vc_column][/vc_row][vc_row][vc_column][/vc_column][/vc_row]

Categories
Accolades Blog Interfaces of Global Change IGEP Newsletter Student Spotlight

Kristen Bretz is the 2019 William R. Walker Graduate Research Fellow

[vc_row][vc_column width=”1/2″][vc_column_text]From Virginia Water Resources Research Center | September 12, 2019

Congratulations to Interfaces of Global Change IGEP fellow Kristen Bretz, announced as the 2019 William R. Walker Graduate Research Fellow!

Kristen is a 2nd year PhD student in Biological Sciences at Virginia Tech studying stream biogeochemistry. Prior to starting her research at Virginia Tech, Kristen received her M.S. from UNC Chapel Hill where she studied arctic lake methane dynamics. She also worked for USDA for several years. She returned to freshwater research for the opportunity to study streams of her native Blue Ridge mountains, and she is currently investigating how changes in headwater network connectivity affect stream carbon processing.

Established to honor the late William Walker, the founding director of the Virginia Water Resources Research Center, this award has been given since 1999 to recognize and support graduate students in water resources who are pursuing work in a field different from their undergraduate study, or who have returned to school following a period of professional work. More information about this program is available HERE.[/vc_column_text][/vc_column][vc_column width=”1/2″][vc_single_image image=”24243″ img_size=”large”][/vc_column][/vc_row][vc_row][vc_column][/vc_column][/vc_row]

Categories
Blog Conservation Interfaces of Global Change IGEP Newsletter Outreach Pollution Special Events Water

IGC Fellows take on ReNew the New: Giles County Edition

[vc_row][vc_column][vc_column_text]

August 30, 2019

By Lauren Wind

Early on the morning of August 28th, twenty IGC fellows and friends met in the dense fog at the Eggleston Community Park to take part in an epic “Fall into the New” New River cleanup endeavor. ReNew the New, a group comprised of multiple local NGOs, outfitters, local government officials, and concerned citizens, focuses on the stewardship of 37 miles of the New River that run through Giles County, VA. They sponsor two major river cleanup events each year. his event also included cleanup of New River miles winding throughout the valley in Montgomery Co, Pulaski Co, Floyd Co, and Radford.

In an effort to keep the New River clean and pristine, we were charged with pairing up in canoes or solo trips in kayaks to retrieve as much trash as we could fit in our vessels along a four mile stretch in Giles Co. Before we embarked on our journey, ReNew the New founder Ann Geotte spoke words of wisdom to us: “Do not be upset if you don’t get a tire… this isn’t an Easter egg hunt!” From that moment on, the challenge was upon us IGC Fellows to collect the most tires. And we did not disappoint!

In total we collected 18 tires, one sleeping bag and pillow set, four cans of unopened beers, dozens of empty cans, a table, and countless other items. Shout out to Stephen Plont, who deemed himself the winner by finding… a Porta-Potty within the first half-mile stretch of the river. It was all hands-on deck to pull most of these items out of the water, and some of us had to leave our safe and dry vessels to retrieve sunken tires and trash. Our efforts were rewarded with internal bragging rights to each other on what we found, soaking up sunny rays on the river, and a lunch and t-shirt following the event.

Please visit ReNew the New’s Volunteer page to learn more about future volunteer events; and to view the statistics on how much trash collectively was retrieved throughout “Fall into the New” event this fall.[/vc_column_text][/vc_column][/vc_row][vc_row][vc_column][vc_separator][/vc_column][/vc_row]

Categories
Blog Evolution News Research Video

Geosciences’ Shuhai Xiao finds fossils dating back 550 million years, among earliest known displays of animal mobility

[vc_row][vc_column][vc_column_text]

Header image: A fossilized trail of the animal Yilingia spiciformis, dating back 550 million years. The trail was found in China by a team of scientists including Shuhai Xiao of the Virginia Tech College of Science.

VT NEWS | September 4, 2019

In a remarkable evolutionary discovery, a team of scientists co-led by a Virginia Tech geoscientist has discovered what could be among the first trails made by animals on the surface of the Earth roughly a half-billion years ago.

Shuhai Xiao, a professor of geosciences with the Virginia Tech College of Science, calls the unearthed fossils, including the bodies and trails left by an ancient animal species, the most convincing sign of ancient animal mobility, dating back about 550 million years. Named Yilingia spiciformis – that translates to spiky Yiling bug, Yiling being the Chinese city near the discovery site – the animal was found in multiple layers of rock by Xiao and Zhe Chen, Chuanming Zhou, and Xunlai Yuan from the Chinese Academy of Sciences’ Nanjing Institute of Geology and Palaeontology.

The findings are published in the latest issue of Nature. The trials are from the same rock unit and are roughly the same age as bug-like footprints found by Xiao and his team in a series of digs from 2013 to 2018 in the Yangtze Gorges area of southern China, and date back to the Ediacaran Period, well before the age of dinosaurs or even the Pangea supercontinent. What sets this find apart: The preserved fossil of the animal that made the trail versus the unknowable guesswork where the body has not been preserved.

Shuhai Xiao

“This discovery shows that segmented and mobile animals evolved by 550 million years ago,” Xiao said. “Mobility made it possible for animals to make an unmistakable footprint on Earth, both literally and metaphorically. Those are the kind of features you find in a group of animals called bilaterans. This group includes us humans and most animals. Animals and particularly humans are movers and shakers on Earth. Their ability to shape the face of the planet is ultimately tied to the origin of animal motility.”

The animal was a millipede-like creature a quarter-inch to an inch wide and up to 4 inches long that alternately dragged its body across the muddy ocean floor and rested along the way, leaving trails as long as 23 inches. The animal was an elongated narrow creature, with 50 or so body segments, a left and right side, a back and belly, and a head and a tail.

The origin of bilaterally symmetric animals — known as bilaterians — with segmented bodies and directional mobility is a monumental event in early animal evolution, and is estimated to have occurred the Ediacaran Period, between 635 and 539 million years ago. But until this finding by Xiao and his team, there was no convincing fossil evidence to substantiate those estimates. One of the recovered specimens is particularly vital because the animal and the trail it produced just before its death are preserved together.

Remarkably, the find also marks what may be the first sign of decision making among animals – the trails suggest an effort to move toward or away from something, perhaps under the direction of a sophisticated central nerve system, Xiao said. The mobility of animals led to environmental and ecological impacts on the Earth surface system and ultimately led to the Cambrian substrate and agronomic revolutions, he said.

“We are the most impactful animal on Earth,” added Xiao, also an affiliated member of the Global Change Center at Virginia Tech. “We make a huge footprint, not only from locomotion, but in many other and more impactful activities related to our ability to move. When and how animal locomotion evolved defines an important geological and evolutionary context of anthropogenic impact on the surface of the Earth.”

Rachel Wood, a professor in the School of GeoSciences at University of Edinburgh in Scotland, who was not involved with the study, said, “This is a remarkable finding of highly significant fossils. We now have evidence that segmented animals were present and had gained an ability to move across the sea floor before the Cambrian, and more notably we can tie the actual trace-maker to the trace. Such preservation is unusual and provides considerable insight into a major step in the evolution of animals.”

The study was supported by the Chinese Academy of Sciences, the National Natural Science Foundation of China, the U.S. National Science Foundation, and the National Geographic Society.

Related story:

Virginia Tech-led study finds oldest footprints of bug dating back 540-plus million years

[/vc_column_text][vc_separator][/vc_column][/vc_row][vc_row][vc_column][vc_column_text]

CONTACT:
Steven Mackay

540-231-5035

[/vc_column_text][/vc_column][/vc_row]

Categories
Interfaces of Global Change IGEP News Newsletter Special Events

IGC IGEP Information Session Scheduled

[vc_row][vc_column][vc_column_text]Current VT graduate students interested in joining the Interfaces of Global Change IGEP must apply before December 1st.  Prior to applying, applicants must attend a number of informational meetings, including this first session with GCC Director, Dr. Bill Hopkins.  Please join us, and sign up in advance here.

September 23rd, 2019
5pm-6pm
Latham 311[/vc_column_text][/vc_column][/vc_row]