First session: Cathy Hoyt Executive Director Chihuahuan Desert Nature Center. Topic: Fire and Succulent Recovery.Best survival and recovery rate post fire? Mammillaria and Echino. species immediately post fire, but secondary mortality may be a greater issue. One reason: rotted bases provide termite homes and erosion pedestals plants. What will happen? Another problem: flash flooding. Not so good for recovering succulents. Or for erosion.