Many pollinators across the globe are experiencing population threats and declines (Potts et al. 2010). Approximately 85 percent of the world’s flowering plants depend on animals, mostly insects, for pollination (Ollerton et al. 2011). As over 80 percent of the United States population lives in cities (U.S. Census Bureau 2016),...
The Altar Valley is an important working landscape that supports biodiversity and vulnerable species in Pima County, Arizona (Huckelberry 2000). This semi-desert grassland, alluvial valley and 713,807-acre watershed composed of 39 subbasins serves as an aquifer to a portion of southwestern Tucson. This region of Southern Arizona has been identified...
Native, wild bee populations play an important functional role in terrestrial ecosystems through pollination services. In recent years, increased attention has been paid to the importance of bumble bee species and their contribution to the agricultural economy, in large part because of the widespread losses of populations across landscapes, both...
Humboldt Redwoods State Park in southern Humboldt County, California is a coastal redwood forest, a highly unique and valued ecosystem. It has many social, cultural, ecological, and economic values, including recreational benefits, heritage and aesthetic values, high biodiversity, nutrient cycling, and climate regulation. However, Humboldt County is at risk of...