Jack studies the ecology and conservation of aquatic animals. His work stretches from sky-islands in the Caribbean island of Trinidad W.I. to headwater streams in Arizona. His current research aim is to understand the ecology of native Arizona fishes to improve the reintroduction and/or repatriation of two endangered fish species, spikedace and loach minnnow.
Des Roches, Torresdal J, Morgan TW, Harmon LJ, Rosenblum EB (2014) Beyond black and white: Divergent behaviour and performance in three rapidly evolving lizard species at White Sands. Biological Journal of the Linnean Society, 111, 169–182.
Torresdal J, Farrell A, Goldberg CS (2016) Detection of a rare bromeliad-dwelling amphibian using environmental DNA. accepted with edits PLoS ONE.