Utah State University Extension
Bees provide an important ecosystem service by contributing to the pollination of crop and wild plant species. Many factors have been attributed to bee declines, including habitat loss, improper apiary management, pesticide usage, climate change, pests and pathogens, competition among native and introduced bee species, poor nutrition, and other factors (Koh et al., 2016; Goulson et al., 2015; Graves et al., 2020; Soroye et al., 2020). Acting together, these factors intensify the pressure for survival beyond the adaptability of many species. This fact sheet reviews the factors contributing to decline in bee populations and what can be done to protect these pollinators.
Mull, Ann; Gunnell, Jaydee; Hansen, Sheriden M.; Ramirez, Ricardo; Walker Bravo, Andree'; Zesiger, Cody; and Spears, Lori R., "Factors Contributing to Bee Decline" (2022). All Current Publications. Paper 2250.