Northern and southern elephant seals face extreme physiological demands during breeding season. Understanding their welfare during this intense period guides better coastal management.
Elephant seal breeding season involves some of the most extreme physiological challenges of any mammal. Fighting males sustain serious wounds — infection of bite injuries can be fatal. The energetic cost of breeding is enormous: males return to sea severely depleted, needing months of intensive feeding to recover. This depleted state creates vulnerability to stress from human disturbance or prey shortage. Females weaning pups at 4 weeks must then find food rapidly or face dangerous weight loss. Pups weaned too early — from disturbance-driven maternal abandonment — face starvation unless rescued. Climate change affecting foraging conditions at sea is an emerging welfare threat that compounds these natural stresses. Maintaining disturbance-free breeding beaches, enforcing buffer zones, and monitoring body condition of returning seals provides the most effective welfare protection.