Over 250 species of wild bee exist in the UK, the vast majority being solitary species. Unlike honey bees, solitary bees live alone and are even more vulnerable to habitat and pesticide pressures — yet receive far less conservation attention.
Solitary bee welfare is primarily an ecological issue — habitat quality determines whether individuals can complete their life cycle successfully. A mining bee unable to find bare ground for nesting faces reproductive failure and individual death without offspring. A mason bee in a garden with no suitable hollow stems or nest holes cannot reproduce despite abundant flowers. The moral status of individual solitary bees is uncertain but the precautionary principle suggests that preventing unnecessary suffering and death through habitat provision and pesticide avoidance is the appropriate response. The ecological value of solitary bee populations makes their welfare and conservation essentially inseparable.