Harbor seal pupping season is critically vulnerable to human disturbance — evidence-based beach management protects mother-pup pairs from welfare-harmful disruption.
Harbor seal pupping welfare is directly threatened by the overlap of breeding season and peak beach recreation. The welfare mechanism is clear: human or dog approach causes cows to flush from beaches, abandoning pups that may be too young to survive independent of maternal nursing and protection. Even brief separations cause stress hormone elevation in both cows and pups, and repeated disturbance leads to permanent abandonment of pupping sites. The welfare management response — exclusion zones with appropriate fencing and signage, dog leash enforcement, and public education about maintain distance — is straightforward and effective when implemented. Community engagement that creates "seal steward" volunteer programs for monitoring and education produces more durable beach management than enforcement alone.