The Plant Press

Summer internships

From Plant Press, Vol. 25, No. 4, October 2022.

This summer, Sundre Winslow, an intern participating in the Natural History Research Experiences (NHRE), worked on a research project, “Tropical to Temperate Transitions in the Genus Prunus” with Richard Hodel, Jun Wen, and Elizabeth Zimmer. Winslow presented her findings at an NHRE symposium in the museum on August 4.

From June 20 to August 12, Alice Tangerini supervised summer intern to botany, Abigail (Abbey) Paradis. Paradis organized, labeled, and made folders for the hundreds of Cuatrecasas illustrations in the Botanical Art Collection, scanned 40 drawings to fulfill a request from a researcher, scanned 25 other new drawings for the Botanical Art Collection and helped scan and organize Poaceae drawings dating from the 1970s and 1980s. Using Adobe software, Paradis was able to optimize the resolution and improve images of the scans. She used Photoshop to improve digital photos for publications. She also illustrated a living specimen collected by Jason Grant from the SI Botanical Research Greenhouses that had been photographed by Leslie Brothers and vouchered but not yet identified. Her drawing, along with images of the specimens, proved it to be Commelina tuberosa from Ecuador, and has now been added to the Botanical Art Collection.

New Faces

From Plant Press, Vol. 25, No. 3, July 2022.

Kasia Ahern has joined the Botany Department at the National Museum of Natural History (NMNH) on detail as a Collections Program Technician (CPT). She graduated from the George Washington University with a Master of Arts in Museum Studies, specializing in collections management. While in graduate school, she worked as a collections management intern for the Summer Institute in Museum Anthropology (SIMA) within the Department of Anthropology at NMNH. After graduating in 2015, she worked as a contractor in the Division of Fishes at NMNH. Her primary duties as a contractor were cataloging, rehousing, inventorying, and digitizing film and prints using flatbed scanners as well as importing the images and associated metadata into the musuem’s electronic database system, EMu. She remained a contractor within the Divisions of Fishes and Amphibians & Reptiles until she became a CPT in 2019. While most of her time as a CPT has been spent cataloging and inventorying specimens in the Division of Birds, she briefly worked on rehousing the bryophyte collection within Botany. She began her detail in February 2022.

 

Savannah Mapes, a graduate student in dinoflagellate research, visited the Botany Department on 21-23 June 2022, to work on Dr. Maria Faust’s legacy material. Mapes is a fourth year PhD student at the Virginia Institute of Marine Science. She is studying the dynamics of harmful algal blooming (HAB) species in the lower Chesapeake Bay collecting data for the development of enhanced monitoring and mitigation strategies. She is also working on characterizing a local toxin-producing and bioluminescent HAB species, Alexandrium monilatum, describing its life cycle and using molecular techniques to investigate differences between strains. Mapes originally contacted Rose Gulledge for mentorship on a fellowship grant in December 2020. She then planned a visit to Botany and MSC to peruse Faust’s research material and other work-related documents, reprints, and library. Once finally here (she had to wait 1.5 years due to Covid restrictions), she found a treasure trove of HAB and dinoflagellate material from identification guides, teaching notes (complete with sketches), posters, photographs, SEM images, slides, and field notes. Faust’s taxonomic reviews, monographs and learning guides are essential reading for the HAB student; they are heavily used in the classroom as well as in the lab. Mapes’ future plans include continuing her career in scientific research on phytoplankton and creating a summer program for early career marine biology students to learn about the importance of phytoplankton and the marine environment through hands-on, field- and lab-based learning experiences.

New faces

From Plant Press, Vol. 24, No. 4, October 2021.

José Anibal Medina Vega is a postdoctoral fellow with ForestGEO and NGEE–Tropics working to develop a pantropical analysis of nutrient controls and their impact on tropical tree recruitment, growth, and mortality. He began his fellowship in August 2021. His office is located in the Department of Botany at the National Museum of Natural History. Medina Vega received his B.S. at Pan-American School of Agriculture, Zamorano in Honduras and his M.S. and Ph.D. in Forest and Nature Conservation at Wageningen University in the Netherlands. Prior to coming to ForestGEO, he had a postdoctoral fellowship in Stefan Schnitzer’s lab at Marquette University in Wisconsin. Medina Vega collected the data for his doctoral dissertation using canopy cranes of the Smithsonian Tropical Research Institute (STRI) in Panama from 2015 to 2017.

His current fellowship is to develop a pantropical analysis of nutrient controls on lowland tropical forest structure and functional composition. This analysis will be synthesized into a suite of model testbed sites used to evaluate and benchmark model nutrient cycle representations. Medina Vega will use long-term ForestGEO data coupled with recent detailed soil surveys. For his future research, Medina Vega would like to advance the current knowledge of the mechanisms that regulate the dynamics of natural ecosystems, particularly in the tropical forest biome, by incorporating the study of largely ignored life forms, such as lianas and/or palms, to the already more advanced tree research. He aims to investigate their associations and interactions within each other and with the biome. His hope is that his work can provide a more complete understanding of the dynamics of tropical forest systems.

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David Wickell is conducting a 10-week graduate student fellowship in the Department of Botany during the fall of 2021. He is working with Liz Zimmer using genomic methods to elucidate the evolutionary history of allopolyploid speciation in the genus Isoetes. During his time at the Smithsonian Wickell hopes to use Isoetes as a window into how polyploid lineages form and persist within the range of their well-established diploid parents. In addition to his research into polyploidy, Wickell studies the convergent evolution of CAM photosynthesis in Isoetes as part of his doctoral research in Fay-Wei Li’s laboratory at Cornell University. Prior to starting his PhD, he studied asexual biogeography of apomictic ferns with James Beck at Wichita State University where he received his Master’s degree in Biology. Wickell’s current research interests include fern and lycophyte phylogenetics and niche evolution in nascent polyploids.

A virtual summer experience for natural history interns

From Plant Press, Vol. 24, No. 4, October 2021.

Natural History Research Experiences (NHRE) was a Research Experience for Undergraduates site at the National Museum of Natural History sponsored by the National Science Foundation (NSF). Each summer (2010-2021) NHRE welcomed approximately15-18 exceptional undergraduate students from around the United States to the museum for a 10-week-long research project guided by an NMNH scientist. NMNH curators Liz Cottrell (Mineral Sciences) and Gene Hunt (Paleobiology) co-Directed NHRE.

Isabella Schrader

This year, NHRE intern Isabella Schrader worked with Rebecca Dikow, Mike Trizna, and Alex White (Smithsonian’s Office of the Chief Information Officer), Paul Frandsen and Ashlyn Powell (Brigham Young University), as well as Botany’s Eric Schuettpelz, on a project called, “Using machine learning tools to quantify mercuric chloride staining across digitized herbarium specimens.” The goal of the project was to update a machine learning model that identifies mercuric chloride staining on digitized herbarium sheets and apply it to all digitized species housed at the U.S. National Herbarium.

Schrader presented her results at a NHRE virtual research symposium held for Smithsonian staff on August 5, 2021. All 14 NHRE interns presented their e-posters using the Gather.Town app, a platform that allows participants to move and interact freely within a virtual space using an avatar. The symposium was well-attended by NMNH staff, associates, and volunteers.

New faces

From Plant Press, Vol. 23, No. 2, April 2020.

Richie Hodel started as a Peter Buck Postdoctoral Fellow in the Botany Department in January 2020. Hodel is working with Jun Wen and Liz Zimmer to use phylogenomic approaches and collections-based deep learning technologies to resolve phylogeny, assess ancient polyploidy, and infer the biogeographic history of Prunus (Rosaceae). Hodel studied the comparative phylogeography of Neotropical mangroves (genera Avicennia, Laguncularia, Rhizophora) for his doctoral work at the University of Florida with Doug and Pam Soltis, completed in 2017. He recently finished his first postdoctoral appointment at the University of Michigan with Lacey Knowles and Stephen Smith studying the comparative phylogeography of montane sedges (genus Carex), and working on phylogenomic methods development. His research interests include the comparative phylogeography of island taxa, biogeography and niche evolution, and tropical-to-temperate transitions.

New Faces

From Plant Press, Vol. 22, No. 4, October 2019.

Daniel Zuleta is a postdoctoral fellow working on tropical forest mortality with ForestGEO and Next-Generation Ecosystem Experiments–Tropics (NGEE–Tropics). His research has focused on understanding the spatial variation in drought-induced tree mortality and biomass dynamics, as well as assessing the interactions between the species’ drought tolerances and their spatial distributions in Amazon forests. As a postdoctoral fellow, Zuleta aims to understand the mechanisms driving tropical forest mortality in order to develop mortality models that can be included in the Functionally Assembled Terrestrial Ecosystem Simulator (FATES) model and improve predictions of forest response to environmental changes. He will use long-term forest dynamics data from ForestGEO sites along with annual mortality censuses established by Gabriel Arellano to explore tree death modes and implications on stand carbon dynamics. He will additionally collect data on plant stress attributes and the response of trees to extreme climatic events to infer the physiological mechanisms of tree death. Zuleta is based at the ForestGEO headquarters at the Smithsonian National Museum of Natural History in Washington, DC.

New Faces

From Plant Press, Vol. 22, No. 3, July 2019.

Caly McCarthy joined ForestGEO as Administrative Assistant in April 2019 and is based at the Smithsonian’s National Museum of Natural History in Washington, DC. McCarthy combines her interest in plants with her proclivity for details in this position. Prior to this role, McCarthy worked at Turtle Tree Biodynamic Seed Initiative and lived as a co-worker at Camphill Village, an agricultural community of diverse ages, origins, and developmental abilities in Copake, New York. McCarthy holds a Bachelor of Arts in both history and environmental studies from Dickinson College in Carlisle, Pennsylvania.

This summer, Jun Wen and Liz Zimmer are co-mentoring Regina Fairbanks, a Natural History Research Experiences (NHRE) student intern who will be a junior at the University of Pennsylvania in the fall. Fairbanks is working on phylogenomics of the ginseng genus, Panax. Kathryn Picard and Eric Schuettpelz are co-mentoring Zahra Domin, an NHRE intern who will be a senior at Dominican University this fall. Additionally, they are co-mentoring Smithsonian interns Noah Olson and Blake Fauskee, both recent graduates of the University of Minnesota Duluth. All three interns are investigating the incidence of asexuality (in the form of apomixis) within ferns and assessing the role apomixis plays in shaping fern biogeographical patterns.

New Faces

From Plant Press, Vol. 22, No. 2, April 2019.

Joel Nitta

Joel Nitta joined the Department of Botany as a Peter Buck Postdoctoral Fellow in January 2019. Nitta is working with Eric Schuettpelz and Warren Wagner to investigate the biogeography of pteridophytes (ferns and lycophytes) in the Pacific, with a focus on Polynesia. This project expands on Nitta's Ph.D. research at Harvard University where he examined community assembly of ferns on the islands of Tahiti and Moorea, French Polynesia. Nitta recently completed his first postdoctoral fellowship as a Japan Society for the Promotion of Science Fellow with Atsushi Ebihara at the National Museum of Nature and Science in Tsukuba, Japan, where he developed next-generation DNA sequencing methods to better understand the evolution of fern species complexes. Nitta is interested in pteridophyte systematics, ecology, and evolution, and is enthusiastic about the practice of reproducible data analysis with open-source code.

New Faces

From Plant Press, Vol. 22, No. 1, January 2019.

Kathryn Picard joined the Department of Botany as a postdoctoral fellow in October 2018. Working under the supervision of Eric Schuettpelz, she is studying the incidence and evolutionary consequences of apomixis in the diverse fern order Polypodiales. Picard earned her Master’s degree at the University of Alabama where she modeled the early evolution of plant-fungal symbioses using a chytrid-alga system. For her doctoral research at Duke University, Picard explored the phylogenetic diversity of marine fungi and developed high-throughput molecular tools for generating reference sequence data from uncultured marine taxa. Her research interests include systematics of the flagellated fungi, the evolution of plant-fungal mutualisms, and developing genetic resources for “dark taxa”.

New Faces

From Plant Press, Vol. 21, No. 4, October 2018.

Alex White

Alex White is a post-doctoral fellow with a joint appointment in the Department of Botany at the National Museum of Natural History (NMNH) and the Data Science Lab in the Smithsonian Office of Information. White is working with Laurence Dorr and Eric Schuettpelz at NMNH and Rebecca Dikow in the Data Science Lab on developing machine learning models for evaluating global scale patterns of trait diversity in digitized herbarium collections. White recently completed his Ph.D. at the University of Chicago where he studied the ecological and evolutionary drivers of Himalayan bird diversity gradients with a particular focus on biogeography. His research broadly concerns developing computational methods for combining local community data with macroscale data to evaluate contemporary and historical limits on diversity.