Hippopotamuses are vulnerable to habitat loss, drought, and human conflict. As highly social, aquatic mammals with complex behavioral needs, individual welfare suffers significantly when water habitats are degraded or lost.
Hippopotamus welfare is directly linked to water access. During droughts, hippos forced into remaining pools experience severe overcrowding — dominant males wound subordinates repeatedly in resource competition. Skin exposure without water causes cracking and infection. Human-wildlife conflict at water points and crop raid areas results in injuries from spearing, shooting, and trapping that are rarely immediately lethal. Calves separated from mothers in these confrontations face starvation. Habitat protection that maintains permanent water bodies and reduces conflict at agricultural margins directly addresses the most prevalent individual welfare harms in hippo populations.