Education
Dr. Kaiser's academic degrees come from McGill University in Montréal, Canada (B.Sc. in Marine Biology, 1988; Ph.D. in Zoology 1993). He subsequently completed postdoctoral fellowships at Würzburg University, Germany (cytogenetics of leptodactylid and dendrobatid frogs) and La Sierra University (systematics of neotropical rocket frogs, genus Colostethus). He has been a faculty member here since 1997.

Research Interests
Dr. Kaiser is a broadly interested student of evolution, with publications ranging from sponges to fossil lizards, and from nematode parasites to snake skulls. His main research interest lies in the diversity of amphibians and reptiles on tropical islands. For the past decade, Dr. Kaiser's research has focused on the systematics and biogeography of frogs in the genera Eleutherodactylus and Colostethus, in particular on the link between Eastern Caribbean island frog populations and those on the South American mainland. He has more recently begun investigating the herpetofauna of the Península de Paria in northeastern Venezuela and, with his colleague Lee Grismer, the herpetofaunas of Roatán, Honduras, and of Pulau Tioman, West Malaysia.

Selected Publications
Reiswig HM & Kaiser H. 1989. Description of Mycale bamfieldense n. sp. (Porifera, Demospongiae, Poecilosclerida) from Vancouver Island, British Columbia. Can J Zool 67:674-677.

Kaiser H. 1992. The trade-mediated introduction of Eleutherodactylus martinicensis (Anura: Leptodactylidae) on St. Barthélémy, French Antilles, and its implications for Lesser Antillean biogeography. J Herpetol 26:264-273.

Kaiser H, Coloma LA & Gray HM. 1994. A new species of Colostethus (Anura: Dendrobatidae) from Martinique, French Antilles. Herpetologica 50:23-32.

Kaiser H, Hardy JD Jr & Green DM. 1994. The taxonomic status of Eastern Caribbean and South American frogs currently ascribed to Eleutherodactylus urichi (Anura: Leptodactylidae). Copeia 1994:780-796.

Kaiser H, Sharbel TF & Green DM. 1994. Systematics and biogeography of Eastern Caribbean Eleutherodactylus (Anura: Leptodactylidae): evidence from allozymes. Amphib-Rept 15: 375-394.

Kaiser H & Henderson RW. 1994. The conservation status of Lesser Antillean frogs. Herpetol Nat Hist 2:41-56.

Kaiser H, Green DM & Schmid M. 1994. Systematics and biogeography of Eastern Caribbean frogs of the genus Eleutherodactylus (Anura: Leptodactylidae) with the description of a new species from Dominica. Can J Zool 72:2271-2237.

Kaiser H. 1995. Caribbean frogs: How molecules and genes are helping to resolve questions of their systematics, evolution, and biogeography. Futura 10:88-94.

Caldwell MW, Carroll RL & Kaiser H. 1995. The pectoral girdle and forelimb of Carsosaurus marchesetti (Aigialosauridae), with a preliminary phylogenetic analysis of mosasauroids and varanoids. J Vert Paleontol 15:516-531.

Kaiser H, Dwyer CM, Feichtinger W & Schmid M. 1995. A new species of Eleutherodactylus (Anura: Leptodactylidae) from Tobago, West Indies, and its morphometric and cytogenetic characterization. Herpetol Nat Hist 3:151-163.

Green DM, Sharbel TF, Kearsley J & Kaiser H. 1996. Postglacial range fluctuation, genetic subdivision and speciation in the western North American spotted frog complex , Rana pretiosa. Evolution: 50:374-390.

Kaiser H. 1996. Systematics and biogeography of Eastern Caribbean Eleutherodactylus (Anura: Leptodactylidae): consensus from a multidisciplinary approach. p. 129-140. In R Powell & RW Henderson (eds.), Contributions to West Indian Herpetology: A Tribute to Albert Schwartz. Society for the Study of Amphibians and Reptiles, Ithaca, New York.

Kaiser H, Mais C, Bolaños F, Steinlein C, Feichtinger W & Schmid M. 1996. Chromosomal investigation of three Costa Rican frogs from the 30-chromosome radiation of Hyla with the description of a unique geographic variation in nucleolus organizer regions. Genetica 98:95-102.

Green DM, Kaiser H, Sharbel TF, Kearsley J & McAllister KR. 1997. Cryptic species of spotted frogs, Rana pretiosa complex, in western North America. Copeia 1997:1-8.

Kaiser H. 1997. Origins and introductions of the Caribbean frog, Eleutherodactylus johnstonei (Leptodactylidae): management and conservation concerns. Biodivers Conserv. 6:1391-1407.

Dwyer CM & Kaiser H. 1997. Relationship between skull form and prey selection in the thamnophiine snake genera Nerodia and Regina. J Herpetol 31:463-475.

Censky E & Kaiser H. 1999. The Lesser Antillean fauna. Pp. 181-221. In: BI Crother (Ed.), Caribbean Amphibians and Reptiles. Academic Press, San Diego.

Kaiser H, Casper GS, Bernstein N. 2000 Investigating Amphibian Declines: Proceedings of the 1998 Midwest Declining Amphibians Conference. Iowa Academy of Science, Cedar Falls, Iowa.