Alycia L. Stigall
Ph.D., 2004, University of Kansas
M.S., 2001, University of Kansas
B.S., 1999, The Ohio State University (Geological Sciences)
B.S., 1999, The Ohio State University (Biology)
- Macroevolution, speciation, and invasive species
- Quantitative paleobiogeography and paleoecology
- Phylogenetic systematics of articulated brachiopods and crustaceans
- Great Ordovician Biodiversification Event
- Late Devonian Biodiversity Crisis
- Late Ordovician Richmondian Invasion
- Jurassic lakes of Gondwana
My research explores the influence of biogeography and paleoecology on macroevolutionary phenomena, principally speciation and cladogensis. I am particularly interested in elucidating the long-term impacts of species invasions and the relationship between speciation mode and biodiversity expansions and declines. I utilize a variety of quantitative approaches, such as phylogenetic reconstruction and ecological niche modeling, to integrate previously disparate areas of paleontological investigation within a comprehensive evolutionary framework. Articulated brachiopods are the most commonly employed model taxa within this work.
A secondary line of research involves taxonomic and paleoecological analyses of spinicaudatan crustaceans, a group restricted to freshwater lake environments.
Recent projects have focused on the Great Ordovician Biodiversification Event, the Late Ordovician Richmondian Invasion, the Late Devonian Biodiversity Crisis, and Jurassic lakes of Gondwana. Primary field locations range from Ohio and adjacent states, to Oklahoma, Estonia, Namibia, and Antarctica. This research has been supported by the National Science Foundation, National Geographic, and the American Chemical Society’s Petroleum Research Fund.
I also contribute to paleontological database development through iDigBio and collaborate with faculty in the Ohio University Department of Teacher Education to develop workshops, lesson plans, and outreach activities to promote STEM education in the rural Appalachian region and underrepresented groups more broadly. Outreach and educational resources developed are available via the Ordovician Atlas website and the free Digital Atlas of Ancient Life app developed for the iPhone and iPad platform.
- GEOL 2210: Earth and Life History
- GEOL 3/5410: Principles of Paleontology
- GEOL 4/5430: Paleobiogeography
- GEOL 4/5480: Paleoecology
- GEOL 4/5540 Carbonate Depositional Systems
2009-2015, Associate Professor
2004-2009, Assistant Professor
2004, Post-doctoral Researcher, The Ohio State University
- Stigall, A.L., Fine, R. 2018. Epibole vs. ecological turnover: contrasting ecosystem impacts of biotic invasions on Ordovician communities. Palaeoworld, xx-xxx.
- Epa, Y.R., Stigall, A.L., Roberts, E.M., O’Brien, H.D., Stevens, N.J. 2018. Morphological diversification of ampullariid gastropods (Nsungwe Formation, late Oligocene, Rukwa Rift Basin) is coincident with onset of East African rifting” Papers in Palaeontology. 4: 327-348.
- Perera, S.N. and Stigall, A.L. 2018. Identifying hierarchical spatial patterns within paleocommunities: An example from the Late Pennsylvanian Ames Limestone of the Appalachian basin. Palaeogeography, Palaeoclimatology, Palaeoecology. 506: 1-11.
- Trubovitz, S. and Stigall, A.L. 2018. Ecological revolution of Oklahoma’s rhynchonelliform brachiopod fauna during the Great Ordovician Biodiversification Event. Lethaia, 51: 277-285.
- Stigall. A.L. 2018. How is biodiversity produced? Examining speciation processes during the Great Ordovician Biodiversification Event. Lethaia, 51:165-172
- Lam, A.R., Stigall, A.L., Matzke, N.J. 2018. Dispersal in the Ordovician: Speciation patterns and paleobiogeographic analyses of brachiopods and trilobites. Palaeogeography, Palaeoclimatology, Palaeoecology, 489:147-165.
- Nylin, S., Agosta, S., Bensch, S., Boeger, W.A., Braga, M.P., Brooks, D.R., Forister, M.L., Hambäck, P.A., Hoberg, E.P., Nyman, T., Schäpers, A., Stigall, A.L., Wheat, C.W., Österling, M., Janz, N. 2018. Towards a new paradigm for species association dynamics. Trends in Ecology and Evolution, 33: 4-14.
- Stigall. A.L. 2017. Ordovician oxygen and biodiversity. Nature Geoscience, 10:887-888.
- Stigall, A.L., Plotnick, R.E., Park Boush, L.E. 2017. The first Cenozoic spinicaudatans from North America. Journal of Paleontology, 91:467-476.
- Stigall, A.L., Bauer, J.E., Lam, A.L., Wright, D.A. 2017. Biotic immigration events, speciation and the accumulation of biodiversity in deep time. Global and Planetary Change 148, 242-257.
- Bauer, J.E. and Stigall, A.L. 2016. A combined morphometric and phylogenetic revision of the Late Ordovician brachiopod genera Eochonetes and Thaerodonta. Journal of Paleontology, 90(5): 888-909.
- Trubovitz, S. and Stigall, A.L., 2016. Synchronous diversification among Laurentian and Baltic rhynchonelliform brachiopods: implications for regional vs. global triggers of the Great Ordovician Biodiversification Event. Geology, 44: 742-746.
- Stigall, A.L., Dani, D.E., Sickel, A.J., Helfrich, S.A. 2015. Tried and True: Using observations of fossils to reconstruct ancient environments. Science Scope, 39(2): 10-16.
- Hendricks, J.R., Stigall, A.L., and Lieberman, B.S. 2015. The Digital Atlas of Ancient Life: delivering information on paleontology and biogeography via the web. Palaeontologia Electronica 18.2.3E: 1–9.
- Myers, C.E., Stigall, A.L., and Lieberman, B.S. 2015. PaleoENM: applying ecological niche modeling to the fossil record. Paleobiology, 41: 226-244.
- Stigall, A.L. 2014. When and how do species achieve niche stability over long time scales? Ecography, 37: 1123-1132.
- Plotnick, R., Stigall, A.L., and Stefanescu, I. 2014. Evolution of Paleontology: Long-term gender trends in an Earth Science discipline. GSA Today, 24(11): 44-45. Link.
- Stigall, A.L., Hembree, D.I., Gierlowski-Kordesch, E.H., and Weismiller, H.C. 2014. Evidence for a dioecious mating system in Early Jurassic Hardapestheria maxwelli gen. et sp. nov. (Crustacea, Branchiopoda, Spinicaudata) from the Kalkrand Formation of Namibia. Palaeontology, 57:127-140.
Recent Advisees' Master's Theses
- Epa, Y.R., 2017. Paleoecology of the freshwater gastropods from the late Oligocene Nsungwe Formation of Tanzania.
- Perera, S.N. 2017. Hierarchical spatial patterns in paleocommunities of the Late Pennsylvanian Ames Limestone.
- Trubovitz, S. 2016. Brachiopod diversity during the Great Ordovician Biodiversification Event in the Middle Ordovician Simpson Group (Oklahoma).
- Lam, A.R., 2015. Paleobiogeographic analysis of a Late Ordovician faunal migration: Assessing regional and continental pathways and mechanisms.
- Bauer, J.E., 2014. A phylogenetic and biogeographic analysis of the Ordovician brachiopod Eochonetes.
- Ohio University's Interdepartmental Paleontology Program
- OHIO Center for Ecology and Evolutionary Studies
- The Paleontology Portal