Scientists Investigate Decline of Joshua Trees in California's Mojave Desert
In the Mojave National Preserve, scientists are investigating the decline of Joshua trees, a key species in the desert ecosystem. A National Park Service effort to replant Joshua trees, which were cut down by a Southern California Edison contractor, has seen limited success, with only 14% of the 193 seedlings surviving. Researchers, led by Anne Polyakov from the Society for the Protection of Underground Networks, are exploring the role of mycorrhizal fungi in supporting the trees' survival. These fungi form symbiotic relationships with plant roots, potentially aiding in nutrient and water absorption. The decline of Joshua trees is attributed to human development, wildfires, and climate change, which threaten their habitat. The research aims to improve restoration efforts by understanding the underground fungal networks that could support the trees' growth. 
