h. bradley shaffer

H. Bradley Shaffer

UCLA La Kretz Center Director and Distinguished Professor

Department of Ecology and Evolutionary Biology, UCLA La Kretz Center for California Conservation Science

La Kretz Hall, Suite 300
Los Angeles, CA 90095-1496

Personal Website

Education

1982 – PhD – University of Chicago – Evolutionary Biology
1976 – BS – University of California, Berkeley – Zoology

Research Interests

Evolutionary biology, ecology and conservation biology of amphibians and reptiles. Recent research projects include comparative phylogeography of amphibians and reptiles in California and the central U.S., systematics of freshwater turtles and tortoises in Australia, California, and the rest of the globe, and conservation genetics of endangered California amphibians and reptiles. Recently, we have focused a great deal of ecological and genetical work on the California tiger salamander, an endangered species native to central California grassland habitat.

Projects

western pond turtle at-risk species assessment

Western Pond Turtle at-risk species assessment

The western pond turtle is California’s only native freshwater turtle. The turtle’s numbers have been declining due to urbanization, limited water availability, and competition or predation from invasive species —…

science to safeguard species

Science to safeguard species

UC Natural Reserve System research has laid the foundation for conserving species across the state. A prime example: UCLA professor Brad Shaffer’s work on California tiger salamanders was instrumental in…

ucla grand challenges | sustainable la

UCLA Grand Challenges | Sustainable LA

The UCLA Grand Challenges (GC) is a multi-year initiative that identifies, incentivizes, and finds solutions for the toughest environmental problems addressing our city, and by extension, our world. La Kretz…

desert tortoise conservation

Desert tortoise conservation

At the La Kretz Center, scientists are working toward a win-win between green energy and endangered species conservation in the Mojave Desert.

endangered species conservation

California Tiger Salamander

Researchers at the La Kretz Center are developing a framework for protecting the genetic integrity of the endangered California tiger salamander from invasive non-natives.

Publications

Historical museum collections and contemporary population studies implicate roads and introduced predatory bullfrogs in the decline of western pond turtles

Nicholson EG, Manzo S, Devereux Z, Morgan TP, Fisher RN, Brown C, Dagit R, Scott PA, Shaffer HB

Published Work | 2020 | PeerJ 8:e9248

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Distribution, identification, landscape setting, and conservation of Rana kauffeldi in the northeastern U.S.

Schlesinger, M.D., J.A. Feinberg, N.H. Nazdrowicz, J.D. Kleopfer, J. Beane, J.F. Bunnell, J. Burger, E. Corey, K. Gipe, J.W. Jaycox, E. Kiviat, J. Kubel, D. Quinn, C. Raithel, S. Wenner, E.L. White, B. Zarate, and H.B. Shaffer

Progress Report | 2017

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Phylogenomic analyses of 539 highly informative loci dates a fully resolved time tree for the major clades of living turtles (Testudines)

Shaffer, H.B., McCartney-Melstad, E., Near, T., Mount, G. G., and P.Q. Spinks

Published Work | 2017 | Molecular Phylogenetics and Evolution, 115: 7-15

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Turtles and tortoises of the world during the rise and global spread of humanity: first checklist and review of extinct Pleistocene and Holocene chelonians. In: Rhodin, A.G.J., Pritchard, P.C.H., van Dijk, P.P., Sau- mure, R.A., Buhlmann, K.A., Iverson, J.B., and Mittermeier, R.A. (Eds.). Conservation Biology of Freshwater Turtles and Tortoises: A Compilation Project of the IUCN/SSC Tortoise and Freshwater Turtle Specialist Group

Turtle Extinctions Working Group [Rhodin, A.G.J., Thomson, S., Georgalis, G., Karl, H.-V., Danilov, I.G., Takahashi, A., De La Fuente, M.S., Bourque, J.R., Delfino M., Bour, R., Iverson, J.B, Shaffer, H. B., and Van Dijk, P.P.].

Published Work | 2015 | Conservation Biology of Freshwater Turtles and Tortoises: A Compilation Project of the IUCN/SSC Tortoise and Freshwater Turtle Specialist Group. Chelonian Research Monographs 5(8):000e.1–66

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Desert Tortoises in the Genomic Age: Population Genetics and the Landscape

H. B. Shaffer, E. McCartney-Melstad, P. Ralph, G. Bradburd, E. Lundgren, J. Vu, B. Hagerty, F. Sandmeier, C. Weitzman, R. Tracy

Progress Report | 2015

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