Hedgehog populations have declined by more than 50 percent in the UK since 2000. Understanding threats helps prioritize interventions that improve survival and welfare.
Hedgehog decline combines habitat loss, prey depletion, and direct mortality into a compounding welfare crisis. Individual hedgehogs experiencing pesticide-depleted foraging areas face chronic nutritional stress. Road casualties suffer traumatic injuries that are frequently not fatal immediately, leaving animals to die over hours. Strimmer injuries cause severe lacerations requiring veterinary intervention. At the population level, declining hedgehog numbers represent a loss of individual animals capable of complex experience including social play and individual territory recognition. Garden interventions including hedgehog gaps in fences, prey-rich habitats, and pesticide reduction can meaningfully help.