Many national parks in the American Midwest are surrounded by agricultural or urban areas or are in highly fragmented or rapidly changing landscapes. An environmental stressor is a physical, chemical, or biological condition that affects the functionin
Stroh, Esther D. estroh@usgs.gov,Struckhoff, Matthew A. mstruckhoff@usgs.gov,Shaver, David,et al. Vulnerabilities of national parks in the American Midwest to climate and land use changes. 2016-01-01.