Courtney publishes the first product of her dissertation in Journal of Experimental Biology! Should a gerbil jump or run zig-zags when it's confronted by a predator? The upshot: Courtney ran a series of controlled laboratory tests to discover that each individual's decision in that pivotal moment may be enabled by -- or constrained by -- the anatomy of its hind limbs. The best jumpers are not necessarily the best maneuverers, and vice versa. 

Treat yourselves to a look at some videos of gerbils jumping and running through the experimental apparatus that Courtney published in the supplementary materials.

This is a particularly gratifying culmination of significant work in no small part because it originated as a 'pandemic project' when our plans for field research got stymied. The work featured an all-star crew of departmental colleagues, postdocs, and undergraduate researchers to boot. 

The accepted article is online ahead of print at Journal of Experimental Biology and should be published to open-access (freely available) repositories shortly: Distinct morphological drivers of jumping and maneuvering performance in gerbils

Earlier this month, Mary Burak led a workshop together with Save the Elephants and the National Museums of Kenya. The meeting convened at the Save the Elephants headquarters at Samburu, and the team spent a few days learning to collect voucher plant specimens for DNA barcoding. In a very short period of time, they added an important chunk of regional plant diversity to the collections available for barcoding. The training and work completed will dramatically increase our ability to precisely characterize the diets of elephants across Kenya. It was super gratifying to see such a great group of scholars, conservationists, long-time collaborators, and all-around quality people coming together to do such important work. Mary shared some great photos of the team in action: Paul Musili, Rispa Kathurima, Gideon Galimogle, and Evans Nawasa.

A new paper from the lab was led by postdoc Bethan Littleford-Colquhoun and published in Royal Society Open Science: "Body size modulates the extent of seasonal diet switching by large mammalian herbivores in Yellowstone National Park." The paper is free to read and download.

Beth used cutting-edge genetic and GPS-tracking technologies to test age-old ideas about why animals select the foods that they do. The work involved collaboration from experts in wildlife ecology and management, genomics, remote sensing, and botany -- with contributions from the National Park Service, several citizen science organizations, and funding from NSF as well as the Department of Interior. 

As Beth summarized in an interview with News@Brown, we have come to more accurately understand wildlife populations as a collection of animals that can respond individualistically to changes in their environment. From summer to winter, animals have to radically change the kinds of foods they eat. But it's not just that: they also have to take care to update their overall foraging strategy as they shift from foraging socially as part of a large herd to foraging more independently for their own unique sets of resources. 

The news summary by Corrie Pikul is available here: How do coexisting animals find enough to eat? Biologists unlock insights into foraging habits in Yellowstone

Graduation is always bitter sweet and we had so many amazing seniors graduate this year -- the class that began under the most trying of circumstances in the early days of the pandemic. A few highlights and congratulations are in order:

• Eliza Atwood: Environmental Studies Senior Prize for Best Senior Thesis! Eliza is heading to UC Irvine for graduate school in conservation!
• Maddy Florida: Senior Prize for Academic Excellence in Biological Sciences!
  
• Logan Torres: Inaugural senior prize at IBES 10th year anniversary!
• Savianna Gonzales-Wagner: Entering Masters program in education at Columbia!

Always inspiring and successful new students bringing their energy to the lab as well:

• Abigail Grove: rising junior wins the BrownConnect SPRINT|UTRA opportunity to join our team at Yellowstone this summer!

Congratulations to Hannah Hoff for being awarded the 2024 James Reveal Eriogonum Project Grant from the Eriogonum Society! Among Hannah's many ambitious endeavors, she is leading the development of a comprehensive plant DNA barcode library and nutritional database so that we can understand what fuels the migrations of large herbivores across Yellowstone. These little buckwheats are turning out to be big contributors, and the grant will help ensure we can account for all of them. We are all so excited to get back out and botanizing in Yellowstone this summer!

Congratulations to Bianca Brown, microbiome scientist extraordinaire, on her publication appearing today in Ecosphere! Spatiotemporal variation in the gut microbiomes of co-occurring wild rodent species is freely available via open access. It is a rare example of the type of insightful work that can develop through collaborations involving field, lab, and big-data analytical approaches to really understand what's going on with wildlife. It is part of our long-term collaboration with the UHURU project at Mpala Research Centre in Kenya.

The lab has been awarded a Life and Medical Sciences Seed Award from Brown's OVPR for 2024!

This $50,000 award will support improvements in our ability to use DNA barcoding to characterize gastrointestinal nematodes that infect tropical wildlife species. Our own Dr. Ezequiel Vanderhoeven is a world expert in the parasitology of tropical wildlife and the seed award will help us extend our funding base for OneHealth research at the nexus of animal health and ecology.

Leveraging expert-verified data to bring wildlife parasitology into the genomics ageWe are on the cusp of a genomics revolution to usher in an era of precision wildlife parasitology—but achieving it requires reforming long-standing traditions in the field. Biologists and health practitioners need to monitor wildlife to ensure effective conservation and identify emerging infectious diseases that may threaten humans and livestock. But we may often misunderstand host-parasite interactions because we rely on overly simplistic methods to study parasite diversity in nature. Fortunately, emerging molecular and bioinformatic techniques can help overcome traditional limitations. We plan to establish genomic workflows to more precisely characterize the diversity and distribution of gastrointestinal parasites that infect wildlife in tropical hotspots. We will accomplish this by constructing and utilizing one of the largest expert-verified databases of helminth DNA in the world. This database will bridge the gap between today’s ‘gold-standard’ practice of using microscopes to painstakingly identify parasites in the field and tomorrow’s need for ‘field-ready’ methods that provide more cost-effective, accurate, and timely parasite identifications—especially for the practitioners who need these data at the right times and places to take action. We will initially use these emerging tools to map hard-to-identify parasites onto wildlife hosts in tropical forests—sloths, monkeys, and tapirs among others—in ways that are more robust than standard techniques could provide. This exciting venture features interdisciplinary collaboration among veterinarians, parasitologists, molecular biologists, and ecologists. It will provide world-class opportunities for students and researchers at Brown to engage with non-profit organizations that focus on wildlife conservation, health, and human livelihoods.
PI: Tyler Kartzinel, Peggy and Henry D. Sharpe Assistant Professor of Environmental Studies, Assistant Professor of Ecology, Evolution, and Organismal Biology and the Institute at Brown for Environment and Society

Congratulations to Elin Videvall for earning a highly competitive SRC Starting Grant to join the faculty and open her lab at Uppsala University! Elin plans to lead projects involving the microbiomes of wildlife in a changing world. Elin joined the lab with a Swedish Research Council Postdoctoral Fellowship in 2021 and we are so proud to have had a small part in her journey.