San Diego Natural History Museum--Your Nature Connection[BRCC San Diego Natural History Museum: Herpetology Department]


Research Activities
   - Department Staff
   - Associates
   - Volunteers
   - Students
Contact Us


Department Staff

Bradford D. Hollingsworth, Ph.D., Curator

Bradford D. Hollingsworth, Ph.D., Curator

Brad has served as the department’s curator since 2000, after serving as a postdoctoral fellow, guest curator of exhibits, expedition lead herpetologist, museum store employee, and volunteer. He received his doctorate from Loma Linda University and obtained both his M.S. and B.S. from San Diego State University. Brad’s research focuses on the evolution and biogeography of the herpetofauna of Baja California and its associated islands (see research activities). Brad is also an Adjunct Professor at San Diego State University where he regularly teaches a zoology course.

Selected Publications
Hollingsworth, B.D. 2004. Understanding the Diversity of Chuckwallas and the Debate Over Names. Iguana 11(2):78-86.

Savage, J.M., B.D. Hollingsworth, K.R. Lips, and A.P. Jaslow. 2004. A new species of rainfrog (genus Eleutherodactylus) from the Serranía de Tabasará, West-Central Panama and reanalysis of the fitzingeri species group. Herpetologica 60(4):519-529.

Hollingsworth, B.D. 2004. The Evolution of Iguanas: An Overview of Relationships and A Checklist of Species. Pp. 19-44. In: A.C. Alberts, R.L. Carter, W.K. Hayes, and E.P. Martins (Eds.), Iguanas: Biology and Conservation. University of California Press, Berkeley.

Galina-Tessaro, P., L.L. Grismer, B.D. Hollingsworth, and A. Ortega-Rubio. 2002. Distribution and conservation of lizards in the Vizcaíno Biosphere Reserve, Baja California Sur, México. The Southwestern Naturalist 47(1):40-55.

Grismer, L.L. and B.D. Hollingsworth, 2001. A taxonomic review of the endemic alligator lizard Elgaria paucicarinata (Anguidae: Squamata) of Baja California, México with a description of a new species. Herpetologica 57(4):488-496

Wiens, J.J. and B.D. Hollingsworth. 2000. War of the iguanas: Conflicting phylogenies, long branch attraction, and disparate rates of molecular and morphological evolution in iguanid lizards. Syst. Biol. 49(1):69-85. (See abstract)

Hollingsworth, B.D. 1998. The systematics of chuckwallas (Sauromalus) with a phylogenetic analysis of other iguanid lizards. Herpetological Monographs 11:38-191. (See abstract)

Hollingsworth, B.D., C.R. Mahrdt, L.L. Grismer, B.H. Banta, and C.K. Sylber. 1997. The occurrence of Sauromalus varius on a satellite islet of Isla Salsipuedes, Gulf of California, México. Herpetological Review 28(1):26-28.

Grismer, L.L., J.A. McGuire, and B.D. Hollingsworth. 1994. A report on the herpetofauna of the Vizcaíno Peninsula, Baja California, México, with a discussion of its biogeographic and taxonomic implications. Bulletin of the Southern California Academy of Sciences 93(2):45-80. (See abstract)

Melissa A. Stepek, M.S., Collection Project Manager

Melissa A. Stepek, M.S., Collection Project Manager

Melissa has served as the department's NSF Collections Project Manager since May 2008. She earned her M.S. in Biology from East Stroudsburg University and her B.A. in Anthropology from the University of California, San Diego. Melissa has over twelve years of wildlife and GIS field experience with a wide variety of agencies. She has a broad range of zoological and collection interests, but her main focus is herpetology. Her specialty is the behavioral ecology of freshwater semi-aquatic turtles.

Laura E. Williams, Collections Technician

Laura E. Williams, Collections Technician

Laura started at the museum in 2005 as a volunteer. In 2007, she was hired as the herpetology collections technician, working to renovate and care for the collection. She also works in the museum’s education department where she often travels to elementary schools to give talks about reptiles and amphibians. Currently, Laura is working toward her B.S. in Biology at San Diego State University focusing on animal behavior.