Cullen has been a bat lover and BCI supporter from an early age. From a BCI member at age 12 to a scientist and one of our board of directors! 


Cullen GeiselmanName: Cullen Geiselman, PhD

Title: Vice Chair – BCI Board of Directors

Organization: Bat Conservation International

Female Conservation Menor:

Joyce Thurau for teaching me how to take bats out of misnets and Janet Tyburec for teaching me the ropes at BCI

Where did you go to school and what did you study?

BA, Environmental Science and Policy, Duke University

PhD, Ecology and Evolutionary Biology, Columbia University  

What is your focus in bat conservation?

I work to expand the world of bat conservation by involving zoos, parks, schools, and other conservation organizations in disseminating information about and enthusiasm for our flying mammals while providing them avenues to take action for bat conservation. 

How have you been involved with Bat Conservation International? 

In my life, I have had the fortune to wear many hats at BCI, first as a young supporter (age 12) visiting Bracken Cave and its sister sites in Mexico with my mom and BCI Founder Merlin Tuttle, to a BCI staff member in the late 1990s, and finally as the Vice-Chair of the board today.

Cullen with a batWhat is the most satisfying part of your involvement with bat conservation?

It is exhilarating to be part of a strong team from co-teaching Bat Conservation and Management workshops with fellow BCI staff to gathering data in the forests of French Guiana with my PhD advisor and his team from which we co-author a book on seed dispersal. 

What’s your favorite species and why?

Nectar feeding bats for their hovering work at flowers and sugar-sweet smell.


lesser long-nosed batDo you have any advice for people who want to get involved in bat conservation?

Find a good team and project close to where you plan to live.