Shaded topographic relief map showing the Brazilian Shield highlands (brown shading, at right)
Chapada dos Veadeiros, Goiás, Brazil
Suckermouth armored catfish "Hypostomus sp. 2" from the Distrito Federal (DF), Brazil; Photo credit: P. Aquino
ddRAD-seq phylogeographic structure in Hypostomus spp. from central Brazil
Southwestern white pine, Pinus strobiformis, NA desert southwest
Limber pine, Pinus flexilis, from high-elevation site
Schematics of demographic models of southwestern white pine (P. strobiformis) and limber pine (P. flexilis) divergence
Poço Azul (Blue Hole) near Brasília, DF, Brazil
Simpsonichthys boitonei, annual killifish endemic to the Brazilian DF; Photo credit: P. Aquino
Cachoeira Tororó (Tororó Waterfall) near Brasília, DF, Brazil
Preparing to sample Retiro do Meio (creek) at wooden bridge on dirt road in the Distrito Federal, Brazil
Digital elevation map of Lower Central America (triangles, volcanoes; blue lines, rivers)
Welcome to the personal academic website of Dr. Justin C. Bagley. I am an evolutionary biologist interested in using and developing genetics-driven approaches (among others) and computational tools (bioinformatics scripts/pipelines) to understand processes shaping the diversity, distributions, and adaptive evolution of species through space and time. I am also interested in applying the inferences and tools of evolutionary genetics to the conservation of threatened and endangered species. Under these general themes, my research focuses on advancing our understanding of the ecology and evolution of natural populations of animals and plants in four key areas, which naturally overlap:
My research advances our knowledge of evolutionary genetics through studies of phylogeography, phylogenetic analysis (including phylogenetic comparative biology), and the process of speciation (e.g. speciation with gene flow). This work focuses on freshwater fishes, lizards, and pine trees.
My phylogenetic systematics and taxonomy studies discover and determine evolutionary relationships among species, and then seek to describe new biodiversity. This research focuses on diversification and systematics of freshwater fishes and lizards in biodiversity hotspots of a) the Central and South American Neotropics and b) North America.
We are generating genome-wide datasets for investigating the patterns and responses of species to abiotic environmental gradients. Here, I am particularly interested in patterns of tree adaptation to elevational gradients, in the face of ongoing/future climate change.
This work focuses on measuring the genetic diversity of wild populations using high-throughput sequencing, and predicting potential effects of habitat fragmentation, climate change, and other threats to species persistence. I am also interested in conducting molecular and experimental studies of genetic rescue and hybridization in managed populations.