Lanphere Dunes

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Coordinates: 40°53′56″N 124°8′41″W / 40.89889°N 124.14472°W / 40.89889; -124.14472
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The Lanphere Dunes before a storm

The Lanphere Dunes National Natural Landmark a unit of the Humboldt Bay National Wildlife Refuge Complex, is located in Humboldt County, California. The dune complex consists of the wave slope, fore dune, herbaceous and woody swales, coniferous and riparian forest, freshwater swamp, freshwater marsh, brackish marsh, salt marsh, and intertidal mudflats. The site exemplifies dunes succession.[1][2]

History

The area was historically occupied by Wiyot prior to European settlement when, in the 1930s, William and Hortense Lanphere made it their home. For the next 40 years they maintained the dunes in a relatively pristine state.[3][4] In 1975 a movement for permanent protection was made by the Lanpheres and faculty from Humboldt State University who used the area for botany classes.[5] Working with The Nature Conservancy the area was protected and turned over to the National Wildlife Refuge System for management.[6] Site management focuses on the prevention and eradication of invasive plants and the restoration of dune and estuarine processes.[7] In January 2021, nine hundred acres of Lanphere Dunes and Ma-le'l Dunes, the first dune habitat restoration project on the West Coast, were designated as National Natural Landmarks by the U.S. Department of the Interior and will continue to be managed by the U.S. Fish and Wildlife Service and the Bureau of Land Management.[2]

Flora and fauna

Flora

Due to its isolation, Lanphere Dunes is home to many uncommon and geographically displaced flora including two

reindeer lichen (Cladonia rangiferina).[8][9]

Many of the lichens and flora that still thrive in the Lanphere Dunes, including reindeer lichens, date back to the

Nature Conservancy.[1] After starting the restoration project in 1992, native plant cover in Lanphere Dunes increased by 47% by the year 1997 without the assistance of active re-planting.[11]

Native species of dunes grass that have experienced a comeback in population count are

Convolvulus soldanella), and dune tansy also referred to as (Tanacetum douglasii).[12] Together, all these dune grasses form the fore dune's ecosystem that used to be extensive along the coast before the spread of invasive species.[1][12]

Fauna

Lanphere Dunes provides shelter and forage for larger animals including

coyote, gray fox, Virginia opossum and raccoon can be found in a wide variety of the refuge habitats.[9][13]

References

  1. ^ a b c d "Lanphere Dunes". Humboldt Bay National Wildlife Refuge. U.S. Fish and Wildlife Service. Retrieved January 26, 2021.
  2. ^ a b Wear, Kimberly. "Lanphere Dunes and Ma-le'l Dunes Named National Natural Landmarks". North Coast Journal News Blog. North Coast Journal. Retrieved January 22, 2021.
  3. ^ Lanphere, Hortense (1990). Bedlam on the Slew. Allen Press.
  4. ^ Rogers, Louisa (June 23, 2022). "Exploring the Lanphere Dunes". North Coast Journal. Retrieved October 6, 2022.
  5. ^ Harrell, Ashley (February 28, 2024). "How a 'pistol-packing mama' defended a rare stretch of California coastline". SFGATE. Retrieved February 29, 2024.
  6. ISBN 978-0-520-92836-7
    .
  7. ISBN 978-0-943460-38-3
    .
  8. ^ "Illustrated Plant List North Coast: Eureka to Samoa". CalFlora. CalFlora. Retrieved January 26, 2021.
  9. ^ a b "Lanphere Dunes". iNaturalist. iNaturalist. Retrieved January 26, 2021.
  10. ^ Steinberg, Sabra. "Mad River Bluffs Background Description and Management Plan" (PDF). McKinleyville Land Trust. California Coastal Conservancy. Retrieved January 26, 2021.
  11. ^ a b Martin, Tunyalee. "A Success Story Lanphere Dunes Unit, Northern California" (PDF). The Nature Conservancy. Retrieved December 12, 2014.
  12. ^ a b Kanwischer, Derek H. "The Geography of Invasive Plant Species on the Coastal Dunes: Northern California". self. Retrieved December 12, 2014. Unpublished thesis Montana State University 5-03-2003
  13. ^ "Wildlife-Humboldt Bay Region". Humboldt Bay National Wildlife Refuge. U.S. Fish and Wildlife Service. Retrieved January 26, 2021.

External links

40°53′56″N 124°8′41″W / 40.89889°N 124.14472°W / 40.89889; -124.14472

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