Welfare of Wild Animals Affected by Coastal Development

Coastal development including seawall construction, marina development, and beach hardening destroys intertidal habitat and disrupts the wildlife communities dependent on it.

Key Facts

Over 50% of the worlds coastlines are now modified by human infrastructure in some way
Intertidal zones support some of the highest biodiversity per unit area of any habitat on Earth
Seawall construction eliminates the gradual transition zones where intertidal species diversity peaks
Beach lighting for coastal developments disorients nesting sea turtles and hatchlings
Living shorelines using oyster reefs and salt marsh restoration provide habitat value that hard seawalls cannot

Welfare Considerations

Coastal development physically erases the habitat of millions of intertidal animals — creatures adapted over evolutionary time to the dynamic transition between sea and land. When seawalls replace beaches, the species that lived in the gradient between them simply have nowhere to go. Sea turtles nesting on developed beaches face lighting disorientation and beach hardening that prevents successful nesting. Living shoreline approaches — oyster reefs, salt marsh restoration, managed retreat — serve both human coastal protection goals and wildlife welfare, often at lower long-term cost than hard infrastructure.

What You Can Do

Support living shoreline approaches over hard seawall construction in coastal development decisions
Advocate for sea turtle-safe lighting on coastal developments during nesting season
Donate to organizations working on coastal habitat restoration and protection
Engage with coastal planning processes to raise wildlife welfare alongside flood risk management