Dennis has spent more than half of his life working with Lindblad Expeditions. He first studied biology in the Sonoran Desert. It was his work with the Arizona-Sonora Desert Museum that brought him into contact with Sven Lindblad. Dennis was working with sea turtles in Mexico, desert tadpoles in southern Arizona and evaluating various legume trees for arid lands agriculture throughout the Sonoran Desert. Sven asked him if he would be interested in working on a ship as a naturalist in Baja California… a simple ‘yes’ turned out to be perhaps the most important decision he ever made!
At first, life as a Lindblad naturalist, working during the winter while on break from university, exploring Baja California while guiding and lecturing, was a positive feedback loop for his academic goals. Spending time with guests, who possessed incredible amounts of life experience and enthusiasm, soon eroded Dennis’ dreams of a career in Academia. However, during this time he earned a master’s degree with a thesis on the reproductive strategies of Sonoran Desert toads and a PhD with a dissertation on the mechanical design and biogeography of columnar cacti (large cacti including the saguaro and the cardon).
For almost 40 years Dennis has explored and learned with Lindblad. At first in the Sonoran Desert, then the temperate rainforest of Southeast Alaska, the topical rainforests of South America and Oceania and many, many other places: dry to wet, hot to cold. As his world experience increased, so did Dennis’ interests… from reptiles and amphibians, to flowering plants, insects and other invertebrate and lichens. He also worked for 15 years as an Undersea Specialist diving and making videos from Antarctica to Svalbard to Papua New Guinea. Now he is out of the water and on the tundra, so what next? With Lindblad Expeditions there is no limit with the whole world to choose from!