Author Archives: Joseph Valencia

Overturning myths about poverty through storytelling

“The individual who grows up in this culture has a strong feeling of fatalism, helplessness, dependence and inferiority” says Oscar Lewis, expounding upon his theory of the “Culture of Poverty” in a 1966 essay. According to Lewis, people who grow up in poverty take on a particular mindset of hopelessness that pervades every aspect of their lives. Elliot Laurence (he/they), our next guest, largely sees the “Culture of Poverty” as a myth and seeks to tell stories that express a broader view of being poor in America. Elliot is a first year Master of Fine Arts student in creative writing and fiction, who draws on his own experience of growing up in poverty and continued financial precarity as a source of inspiration for writing.

Elliot says he is most inspired by people who “make it work”, such as single parents managing to make rent from paycheck to paycheck and overworked social services providers. Harmful stereotypes of poor people often suggest that they are lazy and content to live off government assistance. But as Elliot points out, the tangle of paperwork and compliance that the American welfare state imposes on the poor is anything but a cushy lifestyle. So too are the ways that poor families must make ends meet.   One of Elliot’s short stories centers around a young child from a poor family who collects aluminum cans and bottles to exchange at the recycling center for meager sums of money. They want to depict everyday moments like this to push back against the common representation of poverty as something to gawk at, as exemplified in media like “The Florida Project” and “Shameless”. As he sees it, poverty fiction could be any genre, including sci-fi or fantasy, with background themes of material insecurity setting the scene.

Elliot’s personal story is interwoven deeply in his approach to writing. Born to a single mother in St. Louis, Missouri as the second of five children, he grew up playing an older sibling role. Elliot joined the Air Force at the age of 17, following the well-worn pipeline from poor neighborhoods to the military. Elliot is transgender, and years of trans activism in the hostile environment of Missouri later attracted him to the more accepting Pacific Northwest. He continues to be a guardian for his teenage sister, all while balancing the MFA curriculum, a teaching assistant position, and jobs as a daycare worker and Doordasher.

To hear excerpts from his writing and about how his identity as a mixed-race, transgender veteran has informed his fiction, tune in this Sunday, February 11th at 7PM on KBVR 88.7 FM or shortly thereafter wherever you get your podcasts!

Sim like a Fish

Our next guest is Lauren Diaz, a fourth year PhD student in the Department of Fisheries , Wildlife and Conservation Sciences. Lauren is advised by Prof. Jim Peterson and focuses on the population dynamics of freshwater organisms.

Lauren studies rainbow trout, a widespread salmonid with important ties to recreational fishing and a complex life trajectory. The salmonid family of fish includes large species like Chinook salmon that are ecologically important food sources for both marine and terrestrial species including humans. Trout eggs hatch in freshwater but some juveniles undergo significant physiological changes and spend a large portion of their lifespan in the ocean before returning to the rivers to spawn. This ‘anadromous’ form of rainbow trout is called steelhead.

Lauren uses the Stanislaus River in California’s Central valley as a model system for understanding the impact of dams on the life histories of trout. The prominence of agriculture in the Central Valley has left its watersheds full of dams, irrigation systems and other human diversions. Monitoring fish populations throughout this complex network can be challenging due to a lack of standardization in monitoring systems. In response to this uncertainty, Lauren turns to computer simulations to shed light on the population dynamics of rainbow trout. Specifically, her simulations model the decision-making of individual fish in response to environmental stimuli. Lauren tweaks assumptions of the model such as the typical responses of trout to water depth, prey density, other fish, and tree coverage. In this way, population-level patterns emerge from a set of interpretable individual-level rules. Of particular interest to Lauren is the rate at which fish remain in the stream rather than becoming steelhead. Some preliminary evidence suggests that reduced seasonal fluctuations of water levels due to climate change could be suppressing the relative share of steelhead. 

Lauren grew up in Miami, Florida, a place where encounters with tropical wildlife are part of everyday life. She was fascinated by reptiles and amphibians and became known as the “animal person” within her family and eventually studied herpetology during her undergraduate career at the University of Florida and a master’s degree at Clemson. An interest in hellbender salamanders, which live alongside rainbow trout in cool freshwater streams, led her to pursue the PhD at Oregon State. To hear more about her journey and research, tune in to KBVR 88.7 FM on Sunday, January 28th or shortly thereafter wherever you get your podcasts!

My new neighbor might be a ghost (shrimp)

Our next guest is Matt Vaughan, a third year PhD student in Integrative Biology working with Prof. Sarah Henkel in the Benthic Ecology Lab. Matt originally hails from Melbourne, Australia and recently joined the ID team as a host. A major theme of his research interest is biological “disturbance and change”, meaning the impact of stressors on organisms and ecosystems.

Matt’s PhD research centers around invertebrate life found on the ocean floor, known to researchers as the “Benthic zone”. He focuses especially on ghost shrimp, a type of crustacean that builds burrows on the ocean floor. In the Pacific Northwest, ghost shrimp have historically inhabited estuaries, the areas where rivers flow into the sea. Within the last decade however, a significant population of ghost shrimp has arisen much farther than expected for the species, more than seven miles off the coast of Oregon and southern Washington. This mysterious colonization could have been spurred by environmental disruptions such as climate change, and the shrimp also represent a significant change in the local ecology of the ocean floor. Firstly, ghost shrimp burrows alter the habitat for preexisting invertebrate species, reducing stability on the seafloor. The large and intricate burrows are often in high densities, and the sand they kick up through their bioturbation can affect the survival and behavior of invertebrates like bivalves. Ghost shrimp burrows also oxygenate the sediment and host vibrant microbial communities, together altering the biogeochemistry of the ocean floor.

Matt (orange hat), surveying the latest floor sample

Matt studies these ecological dynamics by surveying the ocean floor during boat trips out of Newport. His team samples the bed using box cores to collect, identify and count the invertebrates. Matt then uses computational and statistical analysis to characterize the population structure of these areas, particularly seeking to tease out the differences in species distribution between areas with and without ghost shrimp burrows. Ghost shrimp are also relatively large compared to other invertebrates in the area, so their arrival provides a significant potential food source for larger marine life like sturgeon and even gray whales. In the rest of his PhD, Matt hopes to model this trophic impact in the long term.

Spooky

To hear more about Matt’s research and how his travels to the Great Barrier Reef and Southeast Asia helped him discover his love for science, tune into KBVR 88.7 tonight at 7pm or listen soon after wherever you get your podcasts.

Bees get Degrees

We have a special guest this week on Inspiration Dissemination, our own Dr. Grace Deitzler (she/they) who is graduating this term with a PhD in Microbiology! Grace was on an episode of ID earlier in her degree and has served as a host since 2021. In this episode, we will mostly cover the remainder of Grace’s PhD work and give them a send-off both from OSU and from ID.

In the early part of her PhD, Grace worked on mice models of autism and examined the effects of bacterial infection on autism-like behaviors. Since then, her research has focused on a much different species – honeybees. A connective thread between these two disparate phases of research is the “double-hit hypothesis”. This refers to the idea that two concurrent stressors on an organism can increase vulnerability to or severity of disease, beyond the impact of either stressor individually. In mice, the two stressors were a simulated maternal infection during gestation and a subsequent infection of the offspring. In honeybees, the double-hit of interest to Grace is treatment with probiotics after an infection, in this case by a microsporidian fungus.

In comparison with mice or humans, honeybees have a very homogeneous microbiome, with just 8-10 bacterial species accounting for around 95% of the total. The minimalism of the honeybee microbiome and its conservation across individuals suggests that the insect and its bacteria have co-evolved for millions of years. As pollinators, honeybees are of vast ecological and economic importance, with $20 billion in agricultural activity sustained by managed colonies in the US. Beekeepers are understandably interested in protecting their colonies from infection by pathogens such as fungi and foreign bacteria. Much like the probiotic shakes marketed for human consumption, companies have developed probiotic products for honeybees and marketed them towards keepers.

Grace’s research findings cast this practice into doubt. They exposed the pupae to Nosema, a common fungal pathogen that targets the bees’ gut. Then they treated some bees with probiotics. Somewhat counterintuitively, infected individuals treated with probiotics died more quickly than those not fed probiotics! Premature death due to probiotic administration was even observed among healthy bees not exposed to the pathogen. This surprising result spurred Grace to investigate possible mechanisms for probiotic-induced mortality. The Nosema infection damages the bee’s microbiome, eliminating many species from the gut. Grace found that although the probiotic partially restores some of these bacterial species, it leads to more subtle disequilibria in the microbiome at the level of specific bacterial strains. She hypothesizes that this imbalance induces stress that is enough to worsen the bee’s ability to survive. Their results also raise questions about the efficacy of current honeybee probiotics, which appear to do more harm than good. After final analyses are complete, these results will be available in a forthcoming paper.

To hear more about the details of bees and bacteria as well as Grace’s experiences in science communication, tune in this Sunday, June 11th, at 7PM on 88.7 KBVR. 

Fighting for your French fries

This week’s guest is Alexander Butcher, a second-year master’s student in the Department of Crop and Soil Science. Alexander has a wide variety of interests related to minimizing food waste and improving global food security, but his current research focuses on protecting potato crops from insect pests.

Typical chemical pesticides are effective deterrents against invading insects but can cause significant harm to the environment and to humans. Such substances can present health risks to the farm workers that apply the pesticides as well as the consumers who purchase and eat the treated crops. Runoff from agriculture can also cause damage to surrounding ecosystems. In light of these downsides, scientists are interested in finding safer alternatives to conventional pesticides. Alexander studies an alternative class of chemicals called elicitors, which act as signals to activate defense mechanisms of plants. Plants have evolved numerous chemical and structural defenses for fending off insect and microbial attackers as well as competing against other plant species. One such product of this evolutionary arms race is the caffeine that you might enjoy in your morning cup of coffee. Elicitors can selectively turn these defenses on or off. This gives farmers and plant breeders a lot more possibilities for using plant defenses to manage insects.

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The Colorado potato beetle

Alexander’s research focuses on potatoes, which are an important agricultural product in northeastern Oregon along the Washington border. One of the biggest insect pests of potato is the Colorado potato beetle. Alexander is testing strategies for using two synthetic chemical analogs of natural plant signal hormones– salicylic acid and jasmonic acid — to stimulate the natural defenses of potato plants. Jasmonic acid is a phytohormone that promotes defenses against insects that chew, like the Colorado potato beetle. Some of Alexander’s research shows that these defenses can lower the weight of beetles. He thinks that this is due to protease inhibitors, which disrupt the enzymes insects use to digest proteins. Similarly, salicylic acid plays a major signaling role in plant development and defenses against insects that pierce into the plant and suck out fluids, like aphids. While these natural products have the potential to serve as affordable and effective pesticides, their sublethal effects lag behind the efficacy of more lethal chemicals. To help close this gap, Alexander has been researching how potato defenses induced by elicitors can impact the behavior of the beetle and its ability to reproduce.

Alexander first came to an interest in agriculture through his passion for food. He was classically trained in French cuisine and worked as a chef for twelve years, where he experienced first-hand the amount of waste that happens in the food system. His travels in countries affected by food insecurity helped solidify a desire to return to school, and he attended Portland State for a degree in biology. Despite his day job defending crops from insect invaders, he maintains a significant interest in bugs, founding an entomology club at Oregon State. Alexander will be transitioning into the PhD degree in the fall and switching topics towards defending vineyards from vine mealybugs. He eventually hopes to pursue a career in academic research and education.

Alexander treating crops with elicitors

To hear more about Alexander’s story, including why he advocates for insects as a sustainable protein source, tune in this Sunday, May 28th, at 7PM on KBVR 88.7 FM.

The noxious nucleocapsid

“Structure informs function” says Hannah Stuwe, a second year PhD student in Biochemistry and Biophysics (BB), summing up the big picture of her discipline. Hannah works in the lab of Prof. Elisar Barbar, using biophysical techniques to study essential proteins encoded by the SARS-Cov2 virus.

Much attention has been paid to the spike protein of the SARS-Cov2 virion, which is the target of the vaccines developed during the COVID-19 pandemic. Hannah’s research digs into another crucial protein called the nucleocapsid, which plays a role in organizing and packaging the viral genome. Proteins are the primary molecular actors in most biological process, so a detailed structural understanding of the proteins involved could shed light into how the virus disrupts the infected cell. It could also help to develop therapies for people who contract COVID.

The SARS-Cov2 genome is made of RNA wound around nucleocapsids.

The primary analytical technique that Hannah uses is nuclear magnetic resonance (NMR), which probes the atomic nuclei within the protein using magnetic fields. Proteins mainly consist of hydrogen and nitrogen, so these two elements are analyzed separately with different NMR protocols. The resonance information from the individual hydrogen and nitrogen atoms can be combined into a two-dimensional landscape. This gives a rich picture of the protein structure, including how the conformation changes over time and how it interacts with RNAs and other proteins.

Hannah preparing samples for NMR analysis.

Hannah focuses on a short stretch of the nucleocapsid which is intrinsically disordered, meaning that it does not fold to a stable configuration. Instead, the structure of this region varies according to chemical modification by other proteins. When phosphoryl chemical groups are added, the region adopts an open configuration that exposes the viral genome, allowing it to be transcribed by the hijacked cell’s machinery. Without phosphorylation, the structure becomes more compact, possibly making it easier to spread the virion to other cells.

Hannah went to Oregon State for her undergraduate degree in BB and knew her advisor at the time. After graduating in 2019, she worked for a while at an industrial hemp company, working with natural cannabinoid products. Soon after, she felt the call to return to graduate school and accepted a laboratory job and eventually a PhD position with Prof. Barbar. For the rest of her degree, Hannah will analyze the mutations that are continually reshaping the SARS-Cov2 genome.

This is also a special episode because Hannah is in the process of joining the ID team as a host! To hear more about her research before she becomes a regular on the other side of the mic, tune in tonight, April 30th, at 7pm on 88.7 KBVR.

No longer a torrent of salamanders

We are pleased to introduce our upcoming guest, Christopher Cousins, a fourth-year PhD student in the Department of Fisheries and Wildlife, advised by Prof. Tiffany Garcia. Cousins is  researching torrent salamanders, a family of small amphibians endemic to the Pacific Northwest.

Chris is also an amateur photographer, check out his Instagram to see more wildlife pics!

The habitat for torrent salamanders stretches from the far north of California up through the Washington coast and includes distinct populations in the Cascade Range and the Oregon Coast Range. Torrent salamanders inhabit cold streams at relatively high altitude — the kind where few or no fish live, leaving the amphibians near or at the top of the local food chain. Such streams can be ephemeral, disappearing at times throughout the year and leaving salamanders vulnerable to desiccation. This problem is only expected to worsen as climate change further upends these water systems. Torrent salamanders are currently candidates for classification under the Endangered Species Act (ESA), the federal law which grants protections to threatened species. Logging presents another danger to salamander habitats, as reduced tree canopy cover can contribute to higher water temperatures. Under the ESA, officials could prohibit logging in buffer zones around small streams, granting salamander habitats the same protection as the larger streams where salmon live.

Chris’s work with salamanders takes many different forms. He has extensive experience in fieldwork, spending six months traveling throughout Oregon and Washington. He has used environmental DNA from water samples to detect torrent salamander populations in various streams. In another project, he collected DNA directly from approximately 150 salamanders. Chris performed both the lab work to process these samples and the bioinformatics analysis to assemble their DNA sequences. This summer, he plans to conduct a detailed survey of the streams of the streams in the H.J. Andrews Experimental Forest. The overarching goal of his PhD is to document the genetic diversity among torrent salamanders and characterize their population structure across the region, which he hopes will help inform the ESA decision-making process.

Chris remembers catching frogs and salamanders as a child – proof of his fascination with amphibians at a young age. His father was in the Navy, so the family moved around repeatedly, but Chris grew up mostly in Japan. Upon moving back to the US, he felt drawn to Oregon and enrolled at Lane community college before transferring to Oregon State to earn his bachelor’s degree as a first-generation college graduate. He remained at OSU for his graduate work due to the community of scientific mentors he had built. To hear more about his journey, what it is like to explore the Mt. St. Helens eruption zone, and what motivates him to work with this threatened species, tune in to KBVR 88.7 FM this this Sunday, Feb 19th, at 7pm.

Lasers and lipids : in search of a mechanism for dysferlin

This week on Inspiration Dissemination, we are looking forward to chatting with Andrew Carpenter, a postdoctoral fellow working in the lab of Professor Joe Baio in the School of Chemical, Biological, and Environmental Engineering.

Andrew’s research seeks a better understanding of a protein called dysferlin, which plays a critical role in repairing muscle cells.  Muscles undergo constant strain as they expand and contract, leading to tears in the sarcolemmas — thin membranes that surround muscle fibers. Dysferlin is responsible for recruiting vesicles to the site of these tears for a process called vesicle fusion to take place. Andrew likens this mechanism to using a denim patch to fix a hole in jeans, if the patch could become fully absorbed into the fabric in the way that vesicles eventually do into sarcolemmas. Dysferlin is clinically important because certain mutations (dysferlinopathies) to the gene encoding dysferlin lead to a disease called muscular dystrophy. The symptoms of dysferlinopathy typically include muscle weakness and damage to the musculoskeletal system, especially in the limbs.

Andrew working in the lab

The general importance of dysferlin to cell repair is well-established, but the molecular details of its mechanism of action are relatively unknown.  Andrew uses an advanced experimental method called sum-frequency spectroscopy to study the protein at high resolution. This procedure uses two lasers — one infrared and one visible green — and points them at the sample of interest. When the lasers hit the sample, a third beam of light is generated at the surface, carrying information about the vibrations of the molecules. Quantum mechanical calculations are used to examine the intensity of this light as a function of frequency. In Andrew’s research, a synthetic lipid monolayer serves as an in-vitro model of the sarcolemma, and he introduces the dysferlin protein either in its healthy form or with various mutations. Then he uses spectroscopy data to infer changes in protein orientation and binding. In the future, he intends to correlate his experiments with data from live cells.

Andrew first discovered his fascination with laser instrumentation as an undergraduate at Linfield University. After that, he obtained a PhD in Chemistry at the University of Oregon, where he used small oil droplets called nano-emulsions to study the oil-water interface. His background in physical chemistry and expertise in the sum-frequency spectroscopy method have enabled him to readily adapt to studying biological lipid interfaces. His research, including a recent publication, is currently supported by the National Science Foundation.

To hear more about Andrew’s research journey and the differences and similarities in being a postdoc and a graduate student, tune in after the Super Bowl this Sunday, February 12th, at 7pm on 88.7 FM KBVR.


Krypton-ice : what the noble gases tell us about the ancient climate

Tree rings famously reflect the age of the tree, but they can also encode information about the environmental conditions throughout the organism’s life. A similar principle motivates the study of ice cores – traces of the ancient atmosphere are preserved in the massive ice caps covering Earth’s polar regions.

This Sunday’s guest is Olivia Williams, a graduate student here at Oregon State who is helping to uncover the wealth of climate information harbored by polar ice cores. Olivia is a member of the College of Earth, Ocean and Atmospheric Sciences (CEOAS), where she is advised by Christo Buizert. Their lab uses ice cores to study paleoclimatology and heads the Center for Oldest Ice Exploration (COLDEX), a multi-institution NSF collaboration.

Drilling an ice core in the Arctic or Antarctic is an expensive and labor-intensive process. As a result, once they have been studied by project leads, most American ice core samples are centrally managed by the National Ice Core Lab in Denver, CO and carefully allocated to labs throughout the country. Researchers analyze cross-sections of the larger ice core sample for many geochemical features, including dust records, stable isotopes, and evidence of volcanic eruptions. Determining the historical levels of carbon dioxide, methane, and other greenhouse gases is one application of ice core analysis that yields important insights into climate change.

Olivia’s project focuses on “melt layers”, which are formed by a large-scale melting and refreezing event. The frequency and intensity of melt layers help characterize polar summer temperatures, and specifically the number of days above freezing. Typically, researchers use visual examination or optical instruments to locate layers with relatively smooth and bubble-free ice. However, such methods can fail further down in ice cores, where clathrate ice formed by increased pressure excludes all bubbles. In response, the lab of Jeffrey Severinghaus at the Scripps Institution of Oceanography developed a chemical method to serve as a supplement. This technique extracts noble gases from the core and compares the ratio of the heavier (xenon and krypton) to argon, the lightest noble gas. Since the heavier noble gases are more water-soluble, spikes in the relative concentration of krypton and xenon suggest that a melting event occurred.

During a typical day in the lab, Williams takes samples from the ice core stored at -20 C in a large walk-in freezer and handles the samples in chilled ethanol baths. She particularly focuses on ice cores from Greenland and time periods such as the last interglacial period ~120 thousand years ago and the early Holocene ~12 thousand years ago. Since the OSU lab’s noble gas methodology is novel, Olivia’s work involves a lot of design and troubleshooting the extraction line, which extracts the trapped gases. One time, she even had to commission a scientific glassblower for custom cold traps in the extraction line.

Williams’ interest in geology was impressed upon her at an early age, in part by the influence of her grandfather, a longtime science writer for the Seattle Times. Her grandfather’s love for the geology of the Pacific Northwest inspired her to follow in his footsteps as a scientific journalist. At Boston University, Olivia initially planned to major in communications, until she took a seminar on interdisciplinary science communication offered by BU Antarctic Research Lab, together with education and earth sciences majors. This experience helped solidify her interest in geology, and she switcher her major to earth sciences. Her senior research project related to nutrient cycling in salt marshes, but she knew that she eventually wanted to work in polar science and paleoclimatology. Besides her research at OSU, Olivia has stayed active in science communication, serving as the outreach chair for the CEOS graduate student association. She has helped organize education tables at the Corvallis Farmer’s Market. In the future, Olivia hopes to pursue an academic career and continue research and teaching in the field she loves but is open to the full range of earth science career paths.

For more on Olivia’s exciting research and to hear what it is like to drill ice from a lava formation, tune in this Sunday, January 22nd at 7PM on KBVR 88.7 FM or look out for the podcast upload on Spotify!

Heat, Hatchlings, and Sea Turtle Survival

Heat, Hatchlings, and Sea Turtle Survival

A team of researchers makes its way across the beach on this dark night, lighting their way only with starlight and moonlight. It’s high tide on this small island off the coast of Brazil, and the kind of night when green sea turtles love to come ashore to nest. The turtles fall into a trance-like state after wandering around for hours and finally building their nests, and this is when the team approaches. They take a skin sample, place a temperature logger to measure the nest temperature, and tag the turtle with a nail polish marking for future identification. One member of the team is Vic Quennessen (she/they), the subject of our next episode. Vic is a PhD student in the Department of Fisheries, Wildlife, and Conservation Sciences. Quennessen is a computational researcher on the project but helping out on nights like these is part of the job. Vic’s team collaborates with Projeto TAMAR, a Brazilian nonprofit organization that works to preserve and conserve these endangered animals throughout Brazil since the 1980s.

Vic Quennessen releases their first hatchling!

Sea turtles have no sex chromosomes, and their sex is instead determined by the environmental temperature during incubation. Eggs subjected to higher temperatures are more likely to produce female hatchlings. The point at which the sex ratio of eggs approaches 50/50 is around 29 degrees Celsius, but at just one degree higher, some clutches of eggs produce as high as 90% female hatchlings. As temperatures rise due to climate change, this has resulted in a worrying oversupply of female hatchlings.

Sea turtles are difficult to study due to their long and mysterious life cycles. It is believed that they reach reproductive maturity after around twenty-five years, but only females are readily observed because they return to land to build their nests and lay eggs. In contrast, the males stay out at sea for their entire lives. This complicates any effort to ascertain the true population structure. Sea turtles also live a long time, so there is a lag between changes in the hatchling population and the overall population. Finally, hatchlings lack external reproductive organs or other visible sexual characteristics, so the sex ratios must be estimated using temperature as a surrogate.

Vic has always loved the ocean, and they came to OSU looking to help conserve resources that are threatened, such as fish stocks or sea turtles. While attending UMass Dartmouth for their undergraduate degree, they double majored in computational mathematics and marine biology. Initially these felt like separate interests, until a professor suggested that she apply to a NOAA workshop on marine resources and population dynamics. Here she learned that mathematical methods could be a part of rigorous modeling efforts in population biology. After a gap year dedicated to science education, Vic made her way to Oregon State for a Masters in Fisheries Science. Her advisor, Prof. Will White, persuaded her to stay on for a PhD with an opportunity to study her beloved sea turtles.

Sea turtles visit the beaches of more than eighty countries, but Vic’s fieldwork focuses on a population that nests on a small Brazilian island.

Quennessen’s research seeks to predict how the green sea turtle population will be affected by their looming sex imbalance. Vic uses data collected from over 3000 hatchlings per season, including nest temperature readings as well as the numbers of nesting females, hatchlings, and captured males. They build a mathematical model to explore possible scenarios for the “mating function”, the unknown relationship between the sex ratio and reproductive success. On the one hand it is easy to imagine that such a mismatch could reduce the number of mating pairs and lead to a rapid population decline. On the other, it is not well understood how many breeding males are required to sustain the population, and adaptations in mating behavior could slow the decline in population long enough for the more optimistic climate mitigation scenarios to take effect. In any case, it will take a lot of international cooperation to conserve these ancient marine creatures – green sea turtles nest on the shores of over 80 countries. Vic’s hope is that a mathematical exploration of this question could help reveal the chances of survival for the green sea turtles and possibly inform these conservation efforts.

To learn more about Vic’s research and their other interests, including science education and working with CGE, the graduate student union at OSU, tune in Sunday, Nov 6th at 7pm PST on KBVR 88.7 FM or online!

Missed the show? Don’t worry, you can download this episode via your podcast player of choice here.