October 16 Presentation: Field Herping in Mexico

Join the Tucson Herpetological Society on October 18 for “Field Herping in Mexico” presented by Brandon Dietrich, who will discuss his findings on Tiger Rattlesnakes in the Peloncillo Mountains.

Brandon’s interest in reptiles began at a very young age, and he became interested and fascinated with their lives and the nature of their lives and habitats. At a young age, he explored the desert on his bicycle with friends to find animals. Thus, began a lifetime interest in field herping.

Brandon has contributed to the successful captive reproduction of many species in private ands public collections and authored care instructions for exotic animals, particularly vipers. He is also working on range extensions and documenting species in mountain ranges that are herpetologically unexplored.

Recently Brandon’s focus is on Tiger Rattlesnakes in the Peloncillo Mountains and collecting DNA and venom samples to determine if there is a difference between the Peloncillo Crotalus tigris and populations in Mexico. The Guadalupe Canyon population of Crotalus tigris is isolated and is a very different animal than those from other localities.

About:

Brandon has spent his entire life in Arizona, except for time served in the Marine Corps and Army Infantry. He retired from the military in 2016. Originally from Marana, AZ, he played football and was in Kenpo, Jui Jitsu, and kickboxing. He joined the Marine Corps at 18 and went to the infantry. Brandon has traveled to over 40 countries with a focus on Southeast Asia and Australia. He surfs, skydives, and scuba dives when he can.

Brandon went to school to be a certified mechanic on Harley Davidson and Kawasaki and is also a certified aircraft mechanic. He received a combat infantry badge for combat deployments to the Middle East. Even with many injuries and broken bones from combat, military service, and an extreme lifestyle, Brandon continued to herp.

Brandon has a vast appreciation for the Sky Islands and the diversity in each range. Much of his time is spent reading topographic maps and exploring habitat. The Mexican Sky Islands have many secrets remaining to be discovered.

Meeting Time:
7:15pm

Meeting Place:
City Ward 3 Meeting Room – 1510 E Grant Rd – Tucson AZ 85719

Southeast corner of Grant and Vine between Campbell and Mountain Avenues

Pre-meeting Eats:
Blue Willow

Southeast block of Campbell and Glenn

September 18 Presentation Changed: The Mohave Rattlesnake (Crotalus scutulatus)

Michael Cardwell will informs us, and debunk misinformation, about the Mohave Rattlesnake (Crotalus scutulatus)

The Mohave Rattlesnake (Crotalus scutulatus) has been commonly characterized in both popular and scholarly publications for decades as the “most dangerous,” most deadly” and the “most aggressive” of rattlesnakes. Its venom is famously neurotoxic in most parts of its range, yet, amazingly, it is also highly variable geographically. Toxicologists have been intensely studying Mohave Rattlesnake venom for more than forty years and it is widely hypothesized that the cocktail of toxins in snake venoms is specifically adapted to each species’ diet and predatory behavior. Even so, almost no effort had been invested in understanding the natural history and ecology of Mohave Rattlesnakes until 2001.

Mike Cardwell, local wildlife biologist and adjunct researcher with San Diego State University, has been using radiotelemetry to study the private lives of rattlesnakes for the past 18 years – including the first long-term field study of Mohave Rattlesnakes. He will discuss the natural history and behavior of Mohave Rattlesnakes, as well as what we know about their venom and the injuries caused by their bites. Along the way, he will describe currently-recommended first aid measures and bust some common myths.

Among his many accomplishments, Mike co-hosted the first Biology of the Rattlesnakes symposium at Loma Linda University in 2005. He is co-editor of The Biology of Rattlesnakes (2008), authored the Mohave Rattlesnake species account for Rattlesnakes of Arizona (2016), and served on the Wilderness Medical Society panel that revised treatment guidelines for pitviper bites in North America (2015). Mike holds an MS degree in ecology, evolution and conservation. His original four-year Mohave Rattlesnake field study was prominently featured in the Animal Planet television series Venom ER.

Meeting Time:
7:15pm

Meeting Place:
City Ward 3 Meeting Room – 1510 E Grant Rd – Tucson AZ 85719

Southeast corner of Grant and Vine between Campbell and Mountain Avenues

Pre-meeting Eats:
Rubio’s Mexican Grill – 2906 N Campbell Ave – Tucson AZ 85719

Northeast block of Glenn and Campbell