Ants and Trees: A Tale of Evolutionary Déjà Vu in the Rainforest

Ants and Trees: A Tale of Evolutionary Déjà Vu in the Rainforest


July 19, 2024
Above: Rodolfo Probst leads field research with U undergraduates in Costa Rica in March.

U biologist Rodolfo Probst finds multiple ant species that have independently evolved the same specialized relationship with understory trees

Ants are famous for their regimented and complex social behaviors. In the tropics, they are also famous for forming mutualisms with plants. Certain species of trees have conspicuous hollow swellings that house ants, often feeding the ants with specialized ant food. In return, the ants are pugnacious bodyguards, swarming out to aggressively defend the plant against enemies. Scientists have observed these mutualisms for centuries, but an enduring question is how these intriguing interactions evolved in the first place.

That remains a mystery, but new research led by University of Utah field biologist Rodolfo Probst offers insights that could broaden our understanding of ant-plant symbioses.

Published last week in the Proceedings of the Royal Society B, his research focused on an ant genus called Myrmelachista. Most Myrmelachista species nest in dead or live stems of plants, without any specialized mutualistic association. But one group of species in Central America was known to nest only in the live stems of certain species of small understory trees, in a specialized symbiosis similar to other ant-plant mutualisms. These tiny yellow ants hollow out the stems without harming the host plants, and can be found throughout Central America.

Jack Longino. Credit: Rodolfo Probst

Probst made a remarkable discovery. Using DNA sequence data to unravel their evolutionary history, he found that these nine species occurred as two clusters in different parts of the evolutionary tree. That means that this complex relationship, with all its distinctive characteristics, evolved twice from non-specialist ancestors.

His two coauthors are renowned entomologist Jack Longino, better known among U students as The Astonishing Ant Man for his expertise and vast personal collection of ant specimens kept on campus, and former U School of Biological Sciences’ postdoctoral researcher Michael Branstetter, now with U.S. Department of Agriculture’s Pollinating Insect Research Unit at Utah State University.

Probst is a postdoctoral researcher in the School of Biological Sciences and the university’s Science Research Initiative, or SRI, and was recently recognized with the Outstanding Postdoctoral Researcher Award by the College of Science. Through the SRI, Probst has involved U undergraduates in his research. For example, students accompanied Probst and Longino to Costa Rica with funding support from the U’s Wilkes Center for Climate Science & Policy.

With continuing help from SRI undergraduates, Probst is looking to conduct whole genomic sequencing to tease out the genes involved in ant-plant associations, looking “under the hood” of a phenomenon that has intrigued naturalists for centuries.

Read more about the story on ants and trees by Brian Maffly @TheU.

Utah’s fir trees at risk from balsam woolly adelgid

Utah's fir trees at risk from
balsam woolly adelgid


June 20, 2024
Above: A drone photograph in Farmington Canyon shows the several level of infestation of balsam woolly adelgid infesting subalpine fir.
PHOTO CREDIT: MICKEY CAMPBEL

A nonnative tree-killing insect is invading northern Utah, attacking subalpine fir and potentially triggering yet another die-off of the region’s long-stressed conifer forests.

Introduced from Europe into the Pacific Northwest about a century ago, the balsam woolly adelgid (BWA), or Adelges piceae, was first detected in Utah in 2017 and has been spreading around the Wasatch Mountains, visibly affecting many of the popular recreation canyons outside Salt Lake City.

New research from the University of Utah, conducted in partnership with the U.S. Forest Service, has documented the current extent of the adelgid infestation and created a model for predicting its severity around the Uinta-Wasatch-Cache National Forest.

The study documented a clear relationship between the infestation’s severity and temperature, according to lead author Mickey Campbell, a research assistant professor in the Department of Geography (soon to be merged with the Environmental Studies program and renamed the School of Environment, Society, and Sustainability.)

PHOTO CREDIT: MICKEY CAMPBELL The crowns of infested fir trees exhibit crown deformities.

“We took that climate-to-severity relationship along with a series of climate projections and we were able to map current and future exposure to BWA damage at a high spatial resolution,” Campbell said. “The idea [is], in 2040, 2060, 2080 and 2100, based on these different climate projections, determining how exposed these areas are to the potentially damaging effects of BWA. And indeed, we find that for an insect that prefers warmer areas, a warming climate is going to provide it with more opportunity to cause damage.”

The role of climate change

The study appears this month in the journal Forest Ecology and Management. Co-authors include U Biology Professor William Anderegg, director of the Wilkes Center for Climate Science and Policy. [The center hosts its annual Climate Summit on May 14-15, where Anderegg will give opening remarks.]

According to Anderegg, the new study suggests climate change is playing a role in Utah’s adelgid infestation.

“The main pieces of evidence are how strongly temperature is related to the spread and severity of BWA,” said Anderegg, a specialist in forest ecology. “That tells us at the very least as temperatures go up, we should be concerned about more spread and higher severity infestation.” Covering the Wasatch, Uinta, Bear River and a few lesser mountain ranges in northern Utah, this national forest is among the nation’s busiest for recreation. It features five major ski areas that border several others and sees more visits than all of Utah’s national parks combined.

Read the full article by Brian Maffly at @TheU.

Hear the Interview of Dr. Mickey Campbell ( Lead Author and research assistant professor in the Department of Geography) with Ross Chambless on the spread of balsam woolly adelgid in Utah on The Wilkes Center for Climate Science & Policy page.

Conscious of the Planet

'Conscious' of the Planet


June 13, 2024
Above: Ishita Juluru, Frances Benfell and Hannah Rogers and co-founders of the climate app Conscious.

"No one has to be perfect," says Frances Benfell, co-founder of the climate app Conscious. "[I]t's about finding where it's reasonable for people, because no one should have to be breaking their back to be perfect. Instead, we want people to think: what can you actually feasibly fit into your life?"

Hannah Rogers, co-founder of the climate app Conscious

A student at the University of Utah, she along with co-founders Hannah Rogers and Ishita Juluru have been awarded the prestigious Wilkes Student Climate Innovation Prize. The prize was awarded at the second annual Wilkes Climate Summit at the U in May.. The innovative project aims to reform consumer behavior towards sustainability by empowering individuals to make informed choices and take meaningful action against climate change.

Conscious seeks to bridge the gap between producers and consumers in the realm of sustainable consumption. Set to undergo development this summer, the app will provide users with essential information about the environmental footprint of products through a simple barcode scanning feature. From carbon emissions and water usage to sustainable alternatives, Conscious will equip consumers with the knowledge needed to make eco-conscious purchasing decisions.

"Basically, we just want to make climate conscious consumption really easy for people because there's a huge information gap between producers and consumers," explains Frances Benfell, one of the Conscious’s creators. "So we're creating an app that will allow you to scan a barcode and see a product's carbon footprint, how much water was used, where it was made, and where it's shipping from. And then it will give you a list of third-party vetted alternatives that have a lower carbon footprint that you can purchase directly within the app."

 

Beyond its goal to provide consumers with easily accessible information, Conscious aims to foster engagement among its users to drive real change. In addition to its barcode scanning feature, the app will incorporate gamification elements, allowing users to participate in challenges and competitions with friends, colleagues, and community members.

"We're also ‘gamifying’ the process so you can be on different leaderboards, at your workplace or at your school or with your friends," adds Juluru, "and also compete with your friends in different challenges, like a Clean Air Challenge or sustainable Christmas shopping challenge. You’ll be able to see your contributions in comparison with others, which will motivate people to be more engaged."

Reducing ego anxiety

The project started with its creators’ frustrations surrounding the difficulty and hopelessness they felt trying to take climate action. "I think climate change is really isolating sometimes, especially in Utah," shares Benfell. "There's a lot of times where I feel like I'm in a room where I'm the only person who cares. And it's really nice to be able to see all the other efforts people are making. You can reduce ego anxiety by making better decisions, but also seeing that other people are trying too, and not feeling like you're alone in the fight."

The Wilkes Student Climate Innovation Prize will provide crucial support for the development and launch of Conscious. Despite initial setbacks with their software developer, the team is now back on track with two dedicated software engineers, including founder Juluru. 

Launching initially in the U.S., Conscious will focus on wealthy industrial countries where companies and consumers play significant roles in driving climate change. With plans to expand globally, the app will eventually provide tailored resources and information unique to every state.

“We want to have comprehensive resources that show, ‘here’s all the places you can learn about the legislative session; here's where you can learn about where your representatives stand on climate issues,” says Benfell. 

Disrupting the status quo

The Conscious team

Conscious aims to disrupt the status quo of consumerism by empowering individuals to leverage their purchasing power against major climate contributors. By steering consumers away from unsustainable companies, Conscious seeks to send a powerful message and drive systemic change. “The idea is not about people ‘righting their wrongs’ or not being ‘sustainable enough.’ It's more about sending a message to those major climate contributors. Because if we're shifting demand away from high-polluting companies, then we're hurting their bottom line, which they care about a lot more than the environment,” explains Rogers. “There is huge value in putting your money where your mouth is. Yes, you can vote for change in our government. But the biggest way that you vote is what you buy.”

Conscious represents a new frontier in sustainable consumerism, where every purchase becomes an opportunity for positive environmental impact. As the app gears up for development, its creators are poised to lead a movement towards a more sustainable future, one purchase at a time.

 

by Julia St. Andre

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2024 Wilkes Climate Hackathon


2024 Wilkes Climate HackathoN

 

https://wilkescenter.utah.edu/

On January 26 and 27, the Wilkes Center for Climate Science & Policy held its second annual Climate Solutions Hackathon, with wildland fire as this year’s theme.

The challenge posed to U students of any major was to propose an innovative, data-driven solution in one of five categories: 1) prediction and forecasting; 2) risk mitigation; 3) alert systems and evacuations, 4) community resiliency and rehabilitation, or 5) health hazards.

The hackathon organizers encouraged undergraduate and graduate students to form teams and submit a proposal in a slide deck within 24 hours. During the in-person portion of the event, U faculty from various departments along with local representatives from the US Forest Service engaged the different student teams with feedback and guidance. 

The Wilkes Center also provided a Video Mentoring Space with short, pre-recorded videos of researchers sharing suggested solution pathways.

Ultimately, the Wilkes Center received 17 submissions.  Below are the top three winners.

 

Team Wildfire Resilience Collective: (from left to right) Elizabeth Williams, Hannah Meier, Tegan Lengyel, Rebecca Senft.

First Place ($3,000)
Wildfire Resilience Collective


Rebecca Senft (Ph.D. graduate student, School of Biological Sciences)
Hannah Meier (Ph.D student, Ecology and Evolutionary Biology
Tegan Lengyel (Ph.D. graduate student, School of Biological Sciences)
Elizabeth Williams (Undergraduate, biomedical engineering and pediatric clinical health)

Rebecca Senft was noncommittal about the hackathon until a week before. “Then I was like, yeah, I'm going to do it! I'm going to sit down and actually spend this time with my cohort members, and bond, and learn about this problem, and see what I can throw at the wall that will stick.”

Her teammate, Hannah Meier, said she had already been thinking about resilience a lot. “I lived in California during the big 2020 fires and then moved to Oregon and came here from Oregon. So, I'm very familiar with wildfires.”

Team Fire Nest: (from left to right) Suhaani Shelat, Kalina Manova, Navi Brar and Sarah Choe.

Second Place ($2,000)
Fire Nest


Kalina Manova, (Undergraduate, Biomedical Engineering)
Suhaani Shelat (Undergraduate, Mechanical Engineering)
Navi Brar (Undergraduate, Biochemistry)
Sarah Choe (Undergraduate, Computer Science)


They proposed a fire-safe home development company for communities in the Wildland-Urban Interface and other fire-prone areas. Their idea seeks to address the home insurance crisis where many insurers in wildfire-prone areas like California are pulling back coverage or exiting the state entirely.

 Unfortunately, a lot of the fire prone areas are not really fire resistant, just due to poor planning,” said Kalina Manova. “There aren't really many laws that enforce it. Even after a wildfire has burned through an area.”

 Their idea is to increase awareness about fire-resistant homes and provide a low-cost service system to help communities implement fire-safe housing practices.

“Our development company's goal, at the end of the day, is to help communities become more fire resistant and be able to come back easier economically and wiser from natural disasters like fires,” said Sarah Choe.

Team Fire Smart Educational Program: (from left to right) Xuan Hoang, Gaby Karakcheyeva, Brandon Saavedra, Celine Cardena, (Shreesh Srivastava not pictured)

Third Place ($1,000)
Fire Smart Educational Program


Gaby Karakcheyeva (Undergraduate, Biology)
Celine Cardeña (Undergraduate, Sociology & Gender Studies)
Brandon Saavedra (Undergraduate, Architecture)
Xuan Hoang (Undergraduate, Multidisciplinary Design)
Shreesh Srivastava (Undergraduate, Computer Science)

 

This team focused on creating a K-12 educational program around wildfire.

 “I got like zero wildfire education growing up,” said Gaby Karakcheyeva. “It would be really nice if we could teach people to not start wildfires and teach people to appreciate nature and all that stuff.”

They proposed a citizen-science model for engaging communities to gather data which could be integrated into Utah’s K12 curriculum. They also envision partnerships with the US Forest Service, which currently provides a wildland fire curriculum content, and the local Unified Fire Authority in Utah.  

 We want to be able to educate our future generation on the risk of wildfires and wildlife management,” said Celine Cardeña.

by Ross Chambless

 


All the hackathon submissions can be read and explored on the Wilkes Center’s Hackathon webpage.

You can also listen to Ross Chambless’ interviews with the winning teams on the Wilkes Center’s Talking Climate podcast.

Deep in the hack.

 

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CO2 changes over past 66 M years

CO2 Atmospheric changes

Carbon dioxide has not been as high as today's concentrations in 14 million years thanks to fossil fuel emissions now warming the planet.

 

Gabriel Bowen

Today atmospheric carbon dioxide is at its highest level in at least several million years thanks to widespread combustion of fossil fuels by humans over the past couple centuries.

But where does 419 parts per million (ppm) — the current concentration of the greenhouse gas in the atmosphere—fit in Earth’s history?

That’s a question an international community of scientists, featuring key contributions by University of Utah geologists, is sorting out by examining a plethora of markers in the geologic record that offer clues about the contents of ancient atmospheres. Their initial study was published this week in the journal Science, reconstructing CO2 concentrations going back through the Cenozoic, the era that began with the demise dinosaurs and rise of mammals 66 million years ago.

Glaciers contain air bubbles, providing scientists direct evidence of CO2 levels going back 800,000 years, according to U geology professor Gabe Bowen, one of the study’s corresponding authors. But this record does not extend very deep into the geological past.

“Once you lose the ice cores, you lose direct evidence. You no longer have samples of atmospheric gas that you can analyze,” Bowen said. “So you have to rely on indirect evidence, what we call proxies. And those proxies are tough to work with because they are indirect.”

Read the full article by Brian Maffly in @TheU.
Read more about Gabe Bowen, recipient of the College of Science's Excellence in Research award,  and his work with isotopes here.

Read related article "'Call to Action': CO2 Now at Levels Not Seen in 14 Million Years" in Common Dreams.

How Microbes Combat Climate Change

How microbes can combat climate change

Chemist Jessica Swanson works with bacteria that eat methane, a powerful greenhouse gas, out of the atmosphere.

 

While carbon dioxide gets much of the focus in the climate debate, methane, the main flammable component of natural gas, also drives planetary warming. Molecule for molecule, CH4’s heat-trapping potential is 34 times greater than that of CO2 (on a 100-year time scale) and it’s pouring into the atmosphere from both human and natural sources, posing a significant threat to global climate systems.

Now scientists from around the world are exploring various strategies for removing methane from the atmosphere in the hopes of slowing climate change.

University of Utah chemist Jessica Swanson has retooled her lab to help develop a process that would harness methane-eating bacteria, known as methanotrophs, which naturally break down methane into carbon dioxide and organic compounds. She aims to discover ways to enable methanotrophs to effectively pull methane from the air at low concentrations in next-generation bioreactors.

“I’m hopeful that the more we understand methanotrophs, the more we can also facilitate open-system, nature-based solutions,” Swanson said.

Methane accounts for at least 25% of planetary warming, according to the Environmental Defense Fund. The gas is naturally oxidized in the atmosphere resulting in a shorter half-life than CO2, but methane sources are surpassing the oxidizing capacity of the atmosphere at a shocking rate—partially due to a positive feedback cycle between warming and natural emissions from wetlands and permafrost. The consequence is rapidly increasing atmospheric methane concentrations that pose a serious risk of near-term warming.

Read the full article by Brian Maffly in @TheU.

You can listen to an interview of Jessica Swanson on Cool Science radio at KPCW.

Wilkes Center Climate Prize Winner

Winner of Wilkes Center Climate Prize

 

Lumen Bioscience is the inaugural winner of the $1.5 million Wilkes Center Climate Prize at the University of Utah. The Seattle-based biotech company beat 77 international teams with their proposal to drastically reduce methane emissions from dairy and beef cattle using a patented mixture of enzyme proteins.

Wilkes Center Director William Anderegg (left) and Lumen Bioscience Chief Scientific Officer Jim Roberts

Lumen Bioscience is the inaugural winner of the $1.5 million Wilkes Center Climate Prize at the University of Utah. The Seattle-based biotech company beat 77 international teams with their proposal to drastically reduce methane emissions from dairy and beef cattle using a patented mixture of enzyme proteins. William Anderegg, director of the U-based Wilkes Center for Climate Science & Policy, made the announcement at a press conference on Sept. 22, 2023, at the Natural History Museum of Utah. The Wilkes Climate Prize at the University of Utah is one of the largest university-affiliated climate prizes in the world and aims to push through potential breakthroughs with a one-time, unrestricted cash award.

Seven years ago, Lumen scientists discovered how to genetically engineer the edible algae spirulina, a problem that had vexed researchers for decades. Based on the discovery, they built a drug discovery and biomanufacturing platform mainly for developing new, orally delivered biogenic drugs against gastrointestinal (GI) targets that cause human disease. Their winning Wilkes Climate Prize at the University of Utah project extends the approach to target the methane-producing microorganisms in the rumen, a specialized compartment of the cow’s GI tract.

“Our award-winning proposal is a testament to the culture at Lumen, which encourages broad and creative thinking by our highly talented scientists,” said Jim Roberts, Lumen Bioscience chief scientific officer. “CEO Brian Finrow and I founded Lumen on the idea that dramatically improving the cost and scalability of manufacturing protein therapeutics would allow us to address global challenges that are out of the reach of conventional biomanufacturing technologies. The recognition of the Wilkes Climate Prize at the University of Utah is a new and powerful example of this.”

Read the full story by Lisa Potter in @TheU about the September 22, 2023 announcement.

Read more about this story at the Salt Lake Tribune.

 

Climate-Resilient Western Grid

Gird YOUR Grid

 

The Western Interconnected Grid, commonly known as “the Western Interconnection,” is one of the two major interconnected power grids in North America.

The "Western Interconnection," as it is called, stretches from the northern edge of British Columbia, Canada to the border of Baja, Mexico, and from the California coast to the Rockies, and serves roughly 80 million people over 1.8 million square miles across two Canadian provinces and fourteen western states in the United States.  It is the backbone of one of the largest regional economic engines in the world.

On September 18th it was announced that  through  $5M funding by the U.S. National Science Foundation (NSF) and $3.75M funding by the Natural Sciences and Engineering Research Council of Canada (NSERC), the University of Utah and University of Calgary will establish and co-lead the U.S.-Canada Center on Climate-Resilient Western Interconnected Grid.

Masood Parvania, associate professor of Electrical and Computer Engineering at the University of Utah’s John and Marcia Price College of Engineering will co-lead the center along with Hamid Zareipour, professor of Electrical and Software Engineering at the University of Calgary’s Schulich School Engineering.

“Our center is being established at a critical time when the region is experiencing more frequent and severe extreme weather disturbances such as wildfires, heatwaves, drought, and flooding, the impacts of which not only pose threats to human health and the environment but also affect the ability of the western interconnection to continue powering the communities,” says Parvania.

At the University of Utah, the center involves co-principal investigators Valerio Pascucci, professor at the Scientific Computing and Imaging Institute and Kahlert School of Computing, William Andregg, director of the Wilkes Center for Climate Science and Policy, and Divya Chandrasekhar, associate professor in the Department of City and Metropolitan Planning in the College of Architecture and Planning, among multiple other partners and faculty.

Read the full story from the John & Marcia Price College of Engineering website.

More about this story from Brian Maffly in @TheU

Finalists vie for historic $1.5M Wilkes Climate Prize

Finalists vie for historic $1.5M Wilkes Climate Prize

 

A protein-rich bean that evades agricultural emissions? Pepto for cows? Connect the ocean to the power grid? Smart windows on every building? Trees that reduce poverty and save the rainforest?

 

We need bold thinkers with audacious ideas to help mitigate the impacts of climate change. Often, the most unconventional projects have the hardest time getting funding. At $1.5 million, the Wilkes Center Climate Prizeat the University of Utah is one of the largest university-affiliate climate awards in the world. The Wilkes Center for Climate Science and Policy in the U’s College of Science will administer the prize, funded by a cross-section of Utah-based organizations and industries. A panel of respected climate leaders reviewed 77 international proposals and identified five projects representing the most innovative ideas to address the impacts of climate change. The winner of the historic prize will be announced on Sept. 22, 2023.

“I applaud the inspiring and innovative ideas of all five finalists,” said Peter Trapa, dean of the College of Science. “This out-of-the-box, entrepreneurial thinking is precisely what the Wilkes Center is designed to foster. I am excited for the winning organization to  use the prize funds to advance meaningful solutions to the problems posed by a changing climate.”

Learn more about the Wilkes Climate Prize finalists! Note that all assertions are from presentations made at the Wilkes Climate Summit in May 2023.

Which project would you vote for? Read summaries of all five.

A Stark Message from Maui

A Stark Message From Maui

 

Earth’s rapidly changing climate is taking an increasingly heavy toll on landscapes around the world in the form of floods, rising sea levels, extreme weather, drought and wildfire.

^William Anderegg. Banner photo top: The Elkhorn Fire charred more than 20,000 acres in central Idaho’s Payette and Nez Perce-Clearwater national forests on July 30, 2023, burning along 10 miles of the Salmon River and destroying two historic ranch compounds. Credit: Brian Maffly

Also at growing risk are the values of the property where these hazards are projected to worsen, according to a new study by University of Utah scholars. The research team, led by biology professor William Anderegg, attempted, for the first time, to quantify the value of U.S. property at risk in forested areas exposed to increased wildfire and tree mortality associated with climate stresses and beetle infestation.

“As a society, we have this tremendous capacity to deal with and minimize, adapt to and mitigate risk,” said Anderegg, who heads the university’s Wilkes Center for Climate Science & Policy. “We have insurance policies, we have seat belts in cars and airbags. All of these are to mitigate the risk of getting in a car accident or having a fire burn down your house. But fundamentally, all these tools to mitigate risk are predicated on knowing what the risks are and capturing how those risks might change.”

Climate change is a “game changer,” according to Anderegg, because it promises to elevate threats, yet we don’t know exactly where, when or by how much.

“This is a really clear case of where we need cutting-edge science and tools to tell us what are the risks and how are they possibly or likely to change this century due to climate change,” said Anderegg, who studies forest ecology. “Climate change is going to drive wildfire and disturbance risks up and is already driving them up. Insurers leaving states like California really underscores that.”

Most recently is the devastating wildfire in Maui where not only property has been destroyed but scores of human lives have perished.

 

To read the full article by Brian Maffly visit @TheU.

Study Finds and TIME magazine also picked up this story.