San Nicolas Island

Coordinates: 33°15′51.4″N 119°32′20.4″W / 33.264278°N 119.539000°W / 33.264278; -119.539000
Source: Wikipedia, the free encyclopedia.
Not to be confused with Ilha de São Nicolau, Cape Verde.
Map of Channel Islands

San Nicolas Island (

2000 U.S. Census, the island has since remained officially uninhabited, though the census estimates that at least 200 military and civilian personnel live on the island at any given time. The island has a small airport, though the 10,000 foot (3,000 m) runway is the second longest in Ventura County (slightly behind the 11,102 ft (3,384 m) one at the Naval Air Station Point Mugu). Additionally, there are several buildings including telemetry reception antennas.[3]

San Nicolas Island

History

Archaeological evidence suggests that San Nicolas Island has been occupied by humans for at least 10,000 years.

California mission system. Within a few years of their removal from the island, the Nicoleño people and their unique language became extinct.[citation needed
]

Lone Woman of San Nicolas Island

Main article: Juana Maria

The most famous resident of San Nicolas Island was the "Lone Woman of San Nicolas Island", christened Juana Maria; her birth name was never known to anyone on the mainland. She was left behind (explanations for this vary) when the rest of the Nicoleños were moved to the mainland. She resided on the island alone for 18 years before she was found by Captain George Nidever and his crew in 1853 and taken to Santa Barbara.[9] Her story is famously fictionalized in the award-winning children's novel Island of the Blue Dolphins by Scott O'Dell.[10]

Whaling

The steam-schooner California and its two whale catchers Hawk and Port Saunders operated off San Nicolas in 1932 and 1937, catching about 30 fin whales off the island from October to early December in the former year.[11][12]

Munitions testing

Missile firing, it is taking off at about a 30 degree angle with flames coming out the back
A U.S. Navy MQM-8G Vandal missile firing from San Nicolas Island, California (USA), in 1999.
White Sands Proving Ground was selected for the Trinity nuclear test.[13] Between 1957 and 1973, and in 2004 and again in 2010, U.S. military research rockets were launched from San Nicolas Island. The launchpad was situated at 33°15′51.4″N 119°32′20.4″W / 33.264278°N 119.539000°W / 33.264278; -119.539000. It remains part of the Pacific Missile Range
.

San Nicolas Island currently serves as a detachment of Naval Base Ventura County. In addition to the Port Hueneme and Point Mugu, San Nicolas Island is military-owned and operated.

The island belongs to the U.S. Navy and is part of the Naval Air Center's Sea Test Range associated with the Naval Air Warfare Center, Weapons Division at Point Mugu. The island has a 10,000 foot runway, communications and missile tracking equipment, missile and target launch areas. There are also mock cities used for urban warfare training.[14]

Geography

The highest point is Jackson Hill, with an elevation of 907 feet above sea level.[15]

Geology

Composed primarily of

volcanic rocks (primarily andesite) exist on the southeast end of the island.[19]

Stone available to natives for tool making on San Nicolas Island was largely limited to

mudstones.[19] This material is dense and not easily workable.[20]

Climate

Under the Köppen climate classification, San Nicolas Island features a semi-arid climate (Köppen BSk) with mediterranean characteristics.[21] Winters are mild with an average temperature of 55.3 °F (12.9 °C) in February, the coolest month and is the season where most of the precipitation falls.[22] Summers are dry and warm with an average of 64.7 °F (18.2 °C) in September, indicating a seasonal lag. Temperatures above 90 °F (32.2 °C) are rare, occurring on 2 days per summer.[22] The average annual precipitation is 8.58 inches (218 mm), with the wettest month being February and the driest month being August. On average, there are 36 days with measurable precipitation.[22]

Climate data for San Nicolas Island
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 83
(28) 		83
(28) 		78
(26) 		96
(36) 		100
(38) 		91
(33) 		91
(33) 		95
(35) 		103
(39) 		100
(38) 		88
(31) 		82
(28) 		103
(39)
Mean daily maximum °F (°C) 61.3
(16.3) 		60.5
(15.8) 		61.2
(16.2) 		63.2
(17.3) 		64.7
(18.2) 		66.3
(19.1) 		69.1
(20.6) 		70.7
(21.5) 		71.1
(21.7) 		69.7
(20.9) 		66.5
(19.2) 		62.4
(16.9) 		65.6
(18.7)
Daily mean °F (°C) 55.6
(13.1) 		55.3
(12.9) 		56.0
(13.3) 		56.9
(13.8) 		58.9
(14.9) 		60.4
(15.8) 		62.9
(17.2) 		64.3
(17.9) 		64.7
(18.2) 		63.2
(17.3) 		60.5
(15.8) 		57.1
(13.9) 		59.6
(15.3)
Mean daily minimum °F (°C) 50.1
(10.1) 		50.2
(10.1) 		50.6
(10.3) 		50.7
(10.4) 		53.0
(11.7) 		54.5
(12.5) 		56.6
(13.7) 		57.9
(14.4) 		58.4
(14.7) 		56.7
(13.7) 		54.5
(12.5) 		51.8
(11.0) 		53.7
(12.1)
Record low °F (°C) 36
(2) 		37
(3) 		38
(3) 		40
(4) 		41
(5) 		47
(8) 		44
(7) 		46
(8) 		48
(9) 		40
(4) 		42
(6) 		38
(3) 		36
(2)
Average precipitation inches (mm) 1.67
(42) 		2.00
(51) 		1.34
(34) 		0.58
(15) 		0.05
(1.3) 		0.02
(0.51) 		0.01
(0.25) 		0.06
(1.5) 		0.17
(4.3) 		0.26
(6.6) 		0.58
(15) 		1.84
(47) 		8.58
(218)
Average precipitation days (≥ 0.01 in) 6 7 4 5 3 1 1 0 1 2 3 6 36
Source: WRCC (normals 1933–1976)[22]

Biota

Flora

There is little ecological diversity on San Nicolas Island. The island was heavily grazed by sheep until they were removed in 1943.

Lomatium insulare
.

The dominant plant community on the island is coastal bluff

scrubland, with giant coreopsis (Coreopsis gigantea) and coyote brush (Baccharis pilularis) the most visible components. The few trees present today, including California fan palms (Washingtonia filifera) were introduced in modern times. However, early written accounts and the remains of ancient plants in the form of calcareous root casts indicate that, prior to 1860, brush covered a portion of the island.[23]

The absence of grazing animals on San Nicolas Island serves to protect the highly developed

microbial biodiversity have been conducted, preliminary evidence suggests San Nicolas holds significant algal diversity.[24] The island's terrestrial cyanobacteria appear to be particularly diverse, and several new endemic species have been recently described.[25]

Fauna

Island night lizard.

There are only three species of endemic land

deer mouse (Peromyscus maniculatus exterus), and island fox (Urocyon littoralis dickeyi). Two other reptiles, the common side-blotched lizard (Uta stansburiana), and the southern alligator lizard (Elgaria multicarinatus), were at one time thought to be endemic, but an analysis of mitochondrial DNA indicates that both species were most likely introduced in recent times.[26]

More than 10 endemic

Xerarionta tryoni (ssp. tryoni and hemphilli).[27]

Large numbers of birds can be found on San Nicolas Island. Two species are of particular ecological concern: the western gull (Larus occidentalis) and Brandt's cormorant (Phalacrocorax penicillatus), which are threatened by island foxes.

Conservation and restoration

The

Ramona, in San Diego County with the assistance of the Humane Society of the United States.[35] Cats were officially declared eradicated in 2012.[34] The eradication effort took 18 months and cost $3 million.[34]

Channel Islands Restoration (CIR) works with the U.S. Navy on restoration projects throughout San Nicolas Island. Together they have rebuilt and expanded an old native plant nursery. CIR has been eradicating several invasive species on the island including Sahara mustard from the habitat of Cryptantha traskiae, a threatened plant in the

Borage family. CIR has worked to restore San Nicolas Night Lizard (Xantusia riversiana riversiana) habitat with extensive plantings of prickly pear cactus (Opuntia littoralis). The shelter providing habitat has helped to increase night lizard populations. This night lizard species is endemic to only three of the eight Channel Islands and was recently removed from the endangered species list due to conservation efforts.[36]

References

  1. ^ Lassos, Jerry. "Island of the Blue Dolphins". www.nps.gov.
  2. ^ Block Group 9, Census Tract 36.04, Ventura County United States Census Bureau
  3. ^ "San Nicolas Island – Channel Islands California". Beachcalifornia.com. Retrieved 2014-08-14.
  4. ^ Davis, Troy, Jon M. Erlandson, Gerrit L. Fenenga, & Keith Hamm. 2010. Chipped stone crescents and the antiquity of maritime settlement on San Nicolas Island. California Archaeology 2:185–202.
  5. ISBN 978-0-520-21271-8
    . Retrieved 28 November 2020.
  6. ^ Gudde, Erwin Gustav (1960). California Place Names. University of California Press. p. 291. Retrieved 28 November 2020.
  7. ^ Grinëv, Andrei V. (Fall 2017). "Foreign Ships along the Shores of Russian America". Alaska History. 32 (2). Translated by Bland, Richard. Alaska Historical Society: 29–51. Retrieved 31 October 2020.
  8. ISBN 978-1-908145-06-2
    . Retrieved 28 November 2020.
  9. ^ Sahagun, Louis (March 5, 2015). "With island dig halted, Lone Woman still a stinging mystery". Los Angeles Times.
  10. ^ Carlson, Cheri (April 5, 2019). "How the true story behind 'Island of the Blue Dolphins' is being kept alive". Ventura County Star. Retrieved May 20, 2019.
  11. ^ Pacific Fisherman (Vol. 31, 1933), p. 42.
  12. ^ Pacific Fisherman (Vol. 35, 1937), p. 48.
  13. ^ "Trinity Atomic Web Site". Walker, Gregory. Archived from the original on 2010-04-20. Retrieved 2010-08-20.
  14. ^ "San Nicolas Island". The Center for Land Use Interpretation. Archived from the original on January 17, 2020. Retrieved February 13, 2024.
  15. ^ https://www.nps.gov/subjects/islandofthebluedolphins/upload/San-Nicolas-Island-Map.pdf [bare URL PDF]
  16. ^ Meighan, Clement W. and Hal Eberhart. 1953. Archaeological Resources of San Nicolas Island, California. American Antiquity vol. 19 no. 2, pp. 109.
  17. ^ Thorne, Robert F. 1996. The California Islands. Annals of the Missouri Botanical Garden vol. 56 no. 3, pp. 394.
  18. ^ Vedder, J. G., and Robert M. Norris. 1963. Geology of San Nicolas Island, California Geological Survey Professional Paper 369. United States Government Printing Office, Washington D.C., pp. 31.
  19. ^ a b Vedder, J. G., and Robert M. Norris. 1963. Geology of San Nicolas Island, California Geological Survey Professional Paper 369. United States Government Printing Office, Washington D.C., pp. 27–29.
  20. ^ a b Rosenthal, E. Jane. 1996. "San Nicolas Island Bifaces: A Distinctive Stone Tool Manufacturing Technique." Journal of California and Great Basin Anthropology vol. 18 no. 2, pp. 304.
  21. doi:10.1127/0941-2948/2006/0130
    . Retrieved December 1, 2012.
  22. ^ a b c d "General Climate Summary Tables". Western Regional Climate Center. Retrieved December 1, 2012.
  23. Natural History of the Islands of California
    (paperback), University of California Press, Berkeley. pp. 339–340.
  24. ISSN 1527-0904
    .
  25. ISSN 0022-3646
    .
  26. ^ Schoenherr, Allan A., C. Robert Feldmeth, and Michael J. Emerson. 2003. Natural History of the Islands of California (paperback), University of California Press, Berkeley. pp. 342–347.
  27. ^ [1] Atlas of Native California Terrestrial Snails in Ventura County
  28. S2CID 254288276
    .
  29. ^ "San Nicolas Island Restoration Project". Island Conservation.
  30. ^ "Clearing the cats of San Nicolas Island". Los Angeles Times. 18 March 2012. Retrieved 6 July 2016.
  31. ^ "Complex effort to rid San Nicolas Island of cats declared a success". Los Angeles Times. 2012-02-26. Retrieved 14 June 2016.
  32. ^ "San Nicolas Island". NOAA. Retrieved 14 June 2016.
  33. ^ Restoration Activities – Montrose Settlements Restoration Program – Pacific Region – DAARP National Oceanographic and Atmospheric Administration
  34. ^ a b c Steve Chawkins (February 26, 2012). "Complex effort to rid San Nicolas Island of cats declared a success". Los Angeles Times. Retrieved February 28, 2012.
  35. ^ McCormack, P. Island's feral cats get home at rehab center. San Diego Union-Tribune December 24, 2009.
  36. ^ "San Nicolas Island". Channel Islands Restoration. Archived from the original on March 5, 2022. Retrieved February 13, 2024.

External links

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