• The Point Reyes Beach as viewed from the Point Reyes Headlands

    Point Reyes

    National Seashore California

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  • 2014 Changes to the Superintendent's Compendium

    Point Reyes National Seashore will be including an unmanned aircraft closure to the Superintendent's Compendium. The NPS invites the public to submit written suggestions, comments, and concerns about this change. Comment deadline is August 19. More »

Coastal Dunes

diverse coastal dune habitat at Abbotts Lagoon
 

The coastal dunes rise above the reach of the highest tides. When strong winds pelt you with sand at the Point Reyes beach, you can leave. The plants here can’t. They tough out growing on our wild shore with special adaptations. To keep from being completely buried by sand, beach strawberry and beach morning glory can grow up new shoots from horizontal underground stems. The sand has few nutrients available for plants, so dune lupine allows special bacteria into its roots that converts nitrogen in the soil into a form plants can use. Grasses are particularly good at conserving water in their leaves, perhaps too good. Much of the grass you see is invasive. European beachgrass is a highly invasive grass that has taken over vast tracts of dunes. Iceplant, native to South Africa, has likewise colonized a large portion of our dunes. Its fleshy leaves prevent water loss and help it outcompete native vegetation. At Abbotts Lagoon, the park removed 50 acres of these and other invasive plants, and now the endangered beach layia and Tidestrom's lupine are growing there.

Learn more at sfnps.org's Coastal Dunes page and Coastal Dunes image gallery.

Learn more about the Fire Ecology of Coastal Dunes.

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Did You Know?

Relative global annual avg. temperatures. Red bars indicate temps above & blue bars indicate temps below the 1901-2000 avg. temperature.

According to a 2009 report from the National Oceanic and Atmospheric Administration, climate change will likely lead to an increase in extreme weather in the USA. Fortunately, there is still time to limit climate change by reducing emissions of heat-trapping pollution and taking other actions. More...