Don Swann talks to Enviro Jounalism students on a field trip to Saguaro National Park

Don E. Swann, Biologist, Saguaro national Park

Wednesday, April 5, 2023,

2:30-3:3:00 pm,

ASA Koffler Great Room & Zoom


The Saguaro is our signature Arizona plant, but have you every wondered how it is prospering given the change in climate and Tucson’s tremendous growth?  How is data collected, and are there ways local residents can help our treasured saguaros thrive?  These are questions Don Swann is looking forward to answering for us.

Don measuring Saguaros

Don will discuss the large “citizen science” program that the Saguaro National Park does every 10 years to monitor the health of the population of our signature species, the saguaro.  Besides providing background on the park and the saguaro, he’ll discuss how the population has changed in the park over the past 80 years, and how it may change in the future.  He’ll show how data is collected so that local desert communities like Academy Village have the opportunity to invest time to create a similar program with our Saguaros.

Don Swann has worked at Saguaro National Park for over 30 years, has been an author or co-author on more than 20 scientific papers on the saguaro and other Sonoran Desert plants and wildlife.  Originally from the east coast, he attended Brown university, then received an MA in Wildlife Ecology from the University of Arizona.

Compiled and edited by Richard Parrott, Academy Village Volunteer

You can connect to Zoom either by using the following URL: or by opening a browser to and typing in Meeting ID: 954 5651 1620 and Passcode: 85747 

Apr 5: “The Saguaro Census at Saguaro National Park”