Much like a physician monitors a patient's heartbeat and blood pressure for diagnostic purposes, National Park Service officials need accurate information about the resources in their care. Specifically, they need to know how and why natural systems change over time, and what amount of change is normal, in order to make sound management decisions.
In 1998, Congress authorized and funded an initiative to build a stronger scientific foundation for the management and protection of natural resources in national park units across the country. Under the Natural Resource Inventory & Monitoring Program, Coronado National Memorial and 10 other parks in the Sonoran Desert and Apache Highlands are served by the Sonoran Desert Network, whose scientists have designed and implemented an integrated program to provide park managers with the scientific information they need for sound decision making.
The first phase of the program was to verify which natural resources were in the parks via scientific inventories of plants and animals, as well as physical resources, such as air and water quality, climate, geology, and soils.
The second phase of the program is long-term "vital signs" monitoring. Vital signs are a set of key natural resources and ecosystem processes selected to represent the overall health or condition of park resources. Vital signs data can provide early warning of ecosystem changes, allowing park managers to develop effective mitigation measures and reduce management costs.
At Chiricahua National Monument and 10 other southwestern parks, the Sonoran Desert Network (SODN) conducts long-term inventory, monitoring, analysis, and reporting on key park resources to assess the condition of park ecosystems and develop a stronger scientific basis for stewardship and management of natural resources. At Chiricahua National Monument, the network monitors air quality, climate, exotic plants, groundwater, landbirds, seeps, springs, and tinajas, terrestrial vegetation and soils, and washes.