Academic literature on the topic 'San Luis Obispo Region (Calif.)'
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Journal articles on the topic "San Luis Obispo Region (Calif.)"
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Niccum, Elizabeth M., Donald E. Lehrman, and William R. Knuth. "The Influence of Meteorology on the Air Quality in the San Luis Obispo County-Southwestern San Joaquin Valley Region for 36 August 1990." Journal of Applied Meteorology 34, no. 8 (August 1995): 1834–47. http://dx.doi.org/10.1175/1520-0450(1995)034<1834:tiomot>2.0.co;2.
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DeCarli, P., F. Rivera, W. Brown, and Mark Gaskell. "208 Evaluation of Vegetable Soybean Cultivars from a Range of Maturity Groups for Edamame Production in California." HortScience 34, no. 3 (June 1999): 478A—478. http://dx.doi.org/10.21273/hortsci.34.3.478a.
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Coastal California vegetable growers produce a wide range of specialty crops for diverse domestic and export markets. Vegetable-type soybean (Glycine max L.) cultivars are grown and consumed fresh in many parts of the world, but particularly in Japan and Asia, where they are known as edamame. Traditional soybean maturity group classification may not be applicable for fresh-market edamame, particularly in mild coastal California growing conditions. We evaluated a total of 55 vegetable soybean cultivars during the 1998 growing season from maturity groups ranging from group 00 to group VI. Replicated field plots were planted on 30-31 May 1998 in San Luis Obispo, Calif. (lat. 35.12°N.). Cultivars from maturity Groups 00 and I began producing on 4 Sept., followed in 7 to 10 days by maturity Group II and III, and by harvest of maturity Group III and IV cultivars on 19 Sept. Harvest of Group IV cultivars continued until 24 Oct. Percent marketable (two- and three-seeded) pods ranged from 86% to 17% among the cultivars. Marketable yields ranged more than 15-fold, with cultivars such as `Sapporo Midori', a group 00 cultivar popular in Japan, producing 348 g/plant, to cultivars such as `Early Hakucho' and `Envy' producing 20 and 5 g plant, respectively.
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McDonald, V., S. Lynch, and A. Eskalen. "First Report of Neofusicoccum australe, N. luteum, and N. parvum Associated With Avocado Branch Canker in California." Plant Disease 93, no. 9 (September 2009): 967. http://dx.doi.org/10.1094/pdis-93-9-0967b.
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In 1953, branch cankers on California avocado (Persea americana Mill.) trees were attributed to a Botryosphaeria anamorph, Dothiorella gregaria (teleomorph B. ribis) (2), and the disease was known as Dothiorella canker. Since this time, it has been suggested that this fungus should probably be classified as Fusicoccum aesculi Corda (teleomorph B. dothidea) (3). To our knowledge, B. dothidea is the only reported Botryosphaeriaceae species causing Dothiorella canker on avocado in California. Between the summer of 2008 and the winter of 2009, five trees from each of eight avocado orchards in five counties (San Diego, Riverside, Ventura, Santa Barbara, and San Luis Obispo) were surveyed for Dothiorella canker symptoms to verify the associated Botryosphaeriaceae species. Typical Dothiorella canker symptoms observed included darkened and friable bark with a dried, white, powdery exudate. Underneath the bark, cankers were variable in shape and some penetrated into the heartwood. Small sections of tissue (0.5 cm2) were excised from two to four separate cankers per tree and placed onto potato dextrose agar amended with tetracycline (0.01%) (PDA-tet). The most frequently isolated fungi, based on general growth pattern, speed, and colony color, were in the Botryosphaeriaceae with the following percent recovery by county: Riverside–40 and 100% (site 1 and 2, respectively); San Diego–60% (site 3); Ventura–42 and 53% (site 4 and 5, respectively); Santa Barbara–33% (site 6); and San Luis Obispo–32 and 60% (site 7 and 8, respectively). Pycnidia of Botryosphaeriaceae species were also observed on old diseased avocado tree branches. Sequenced rDNA fragments (ITS1, 5.8S rDNA, ITS2, amplified with ITS4 and ITS5 primers) were compared with sequences deposited in GenBank. Four different Botryosphaeriaceae species were identified and included Neofusicoccum australe, B. dothidea, N. luteum, and N. parvum, with species nomenclature based on the work of Crous et al. (1). Pathogenicity tests were conducted in the greenhouse on 1-year-old avocado seedlings, cv. Hass, with one randomly chosen isolate from each of the Botryosphaeriaceae species noted above. Four replicate seedlings were stem-wound inoculated with a mycelial plug and covered with Parafilm. Sterile PDA plugs were applied to four seedlings as a control. Over a period of 3 to 6 months, seedlings were assessed for disease symptoms that included browning of leaf edges and shoot dieback. Mean vascular lesion lengths on stems were 64, 66, 64, and 18 mm for B. dothidea, N. parvum, N. luteum, and N. australe, respectively. Each fungal isolate was consistently reisolated from inoculated seedlings, thus fulfilling Koch's postulates. To our knowledge, this is the first report of N. australe, N. luteum, and N. parvum recovered from branch cankers on avocado in California. These results are significant because Botryosphaeriaceae canker pathogens are known to enter the host plant through fresh wounds (pruning, frost, and mechanical). With high-density planting becoming more common, which requires intensive pruning, the transmission rate of these pathogens could increase in California avocado groves. References: (1) P. W. Crous et al. Stud. Mycol. 55:235, 2006. (2) F. F. Halma and G. A. Zentmyer. Calif. Avocado Soc. Yearb. 38:156, 1953. (3) W. F. T. Hartill and K. R. Everett. N. Z. J. Crop Hortic. Sci. 30:249, 2002.
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Matlock, Melissa, Suellen Hopfer, and Oladele A. Ogunseitan. "Communicating Risk for a Climate-Sensitive Disease: A Case Study of Valley Fever in Central California." International Journal of Environmental Research and Public Health 16, no. 18 (September 5, 2019): 3254. http://dx.doi.org/10.3390/ijerph16183254.
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Valley Fever, or Coccidioidomycosis, a fungal respiratory disease, is prevalent with increasing incidence in the Southwestern United States, especially in the central region of California. Public health agencies in the region do not have a consistent strategy for communication and health promotion targeting vulnerable communities about this climate-sensitive disease. We used the behavior adaptation communication model to design and conduct semi-structured interviews with representatives of public health agencies in five California counties: Fresno, Kern, Kings, San Luis Obispo, and Tulare County. While none of the agencies currently include climate change information into their Valley Fever risk messaging, the agencies discuss future communication methods similar to other health risk factors such as poor air quality days and influenza virus season. For political reasons, some public health agencies deliberately avoided the use of climate change language in communicating health risk factors to farmers who are particularly vulnerable to soil and dust-borne fungal spores. The effectiveness of health communication activities of the public health agencies has not been measured in reducing the prevalence of Valley Fever in impacted communities. Given the transboundary nature of climate influence on Valley Fever risk, a concerted and consistent health communication strategy is expected to be more effective than current practices.
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Cantu, D. A. "America The Bountiful. San Luis Obispo, Calif.: Vocational Education Productions, 1992. Video Tape Series. Each video tape may be purchased individually for $89.95, or the entire six tape series for $375." OAH Magazine of History 8, no. 1 (September 1, 1993): 60–61. http://dx.doi.org/10.1093/maghis/8.1.60-a.
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Barth, A., RK Walter, I. Robbins, and A. Pasulka. "Seasonal and interannual variability of phytoplankton abundance and community composition on the Central Coast of California." Marine Ecology Progress Series 637 (March 5, 2020): 29–43. http://dx.doi.org/10.3354/meps13245.
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Variations in the abundance and composition of phytoplankton greatly impact ecosystem structure and function. Within the California Current System (CCS), phytoplankton community structure is tightly coupled to seasonal variability in wind-driven coastal upwelling, a process that drives changes in coastal water temperatures and nutrient concentrations. Based on approximately a decade (2008-2018) of weekly phytoplankton measurements, this study provides the first characterization of the seasonal and interannual variability of phytoplankton abundance and composition in San Luis Obispo (SLO) Bay, an understudied region within the CCS. Overall, the seasonality of phytoplankton in SLO Bay mirrored that of the larger CCS; diatoms dominated the community during the spring upwelling season, whereas dinoflagellates dominated the community during the fall relaxation period. While we observed considerable interannual variability among phytoplankton taxa, of particular note was the absence of a fall dinoflagellate-dominated period from 2010 through 2013, followed by the return of the fall dinoflagellate-dominated period in 2014. This compositional shift coincided with a major phase shift of both the Pacific Decadal Oscillation (PDO) and North Pacific Gyre Oscillation (NPGO). In addition to exerting a strong influence on the seasonality of phytoplankton community succession and transition between diatom- and dinoflagellate-dominated periods, the state of both the PDO and NPGO also influenced the extent to which environmental conditions (temperature and upwelling winds) could predict community type. These results highlight the importance of long-term datasets and the consideration of large-scale climate patterns when assessing local ecosystem dynamics.
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Úrbez-Torres, J. R., W. D. Gubler, and J. Luque. "First Report of Botryosphaeria iberica and B. viticola Associated with Grapevine Decline in California." Plant Disease 91, no. 6 (June 2007): 772. http://dx.doi.org/10.1094/pdis-91-6-0772c.
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Grapevine decline symptoms in California include dead spurs and cordon and trunk dieback due to canker formation in the vascular tissue. Seven Botryosphaeria spp. are known to be associated with grapevine cankers in California, viz. Botryosphaeria australis, B. dothidea, B. lutea, B. obtusa, B. parva, B. rhodina, and B. stevensii (3). Recently, B. iberica and B. viticola also were isolated from grapevine cankers in a field survey that was conducted throughout California. Identification was based on morphological comparisons along with DNA analyses with previously identified isolates from Spain (1,2): B. iberica (CBS115035, ex-type) and B. viticola (CBS117006 and CBS117009, ex-type). DNA sequences of the rDNA internal transcribed spacer region (ITSI-5.8S-ITS2), part of the β-tubulin gene (BT2), and part of the translation elongation factor 1-α gene (EF1-α) from B. iberica and B. viticola isolates from California were amplified using primers ITS4/ITS5, Bt2a/Bt2b, and EF-728F/EF-986R, respectively. All DNA sequences of B. iberica and B. viticola from California showed 99 to 100% homology with those previously identified and deposited in GenBank. B. iberica, isolated from grapevine cankers from San Luis Obispo County (central coast), formed colonies on potato dextrose agar (PDA) that were dark green with aerial mycelium, optimum growth at 20 to 25°C, and formed pycnidia after 15 days of incubation at 25°C. Conidia were brown, one-septate, oblong to ovoid with a rounded apex, and measured (20.1-) 22.5 to 23.5 (-27.1) × (8.1) 9.3 to 9.8 (-11.2) μm, length/width ratio = 2.4 (n = 60). B. viticola, isolated from grapevine cankers in Sonoma (north coast), San Luis Obispo, Santa Barbara (south coast), Riverside (southern California), and Yolo (Sacramento Valley) counties, formed colonies on PDA that were dark green to grayish with aerial mycelium, optimum growth at 25°C, and formed pycnidia after 2 weeks. Conidia were brown, one-septate, oval to oblong, and measured (16.6-) 19.3 to 20.3 (-23.5) × (8.1) 9.3 to 9.6 (-11.1) μm, length/width ratio = 2.1 (n = 60). Two isolates of each species were used to complete pathogenicity tests (B. iberica: ATCC MYA-4110, ATCC MYA-4111; B. viticola: ATCC MYA-4115, ATCC MYA-4116). Ten fresh pruning wounds on 15-year-old cv. Zinfandel vines were inoculated per isolate using 50 μl of a 5 × 106 conidia per ml suspension. Twenty control pruning wounds were inoculated with the same amount of sterile water. Twelve months after inoculation, all wood inoculated with B. iberica and B. viticola showed internal necrosis extending 35 to 50 and 30 to 35 mm from the point of inoculation, respectively. Necrosis and extent of vascular discoloration in infected wounds was significantly greater (P < 0.05) than in control inoculations (6.5 mm). B. iberica and B. viticola were reisolated from the necrotic region surrounding all inoculation sites. Representative isolates of B. iberica and B. viticola from California were deposited at the American Type Culture Collection (B. iberica: MYA-4110, MYA-4111; B. viticola: MYA-4112 to MYA-4116). Sequences from the studied DNA regions of all isolates were deposited at GenBank. To our knowledge, this is the first report implicating either species as a cause of grapevine decline in California and B. iberica as a pathogen of Vitis vinifera anywhere in the world. References: (1) J. Luque et al. Mycologia 97:1111, 2005. (2) A. J. L. Phillips et al. Mycologia 97:513, 2005. (3) J. R. Úrbez-Torres et al. Plant Dis. 90:1490, 2006.
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Adesemoye, A. O., and A. Eskalen. "First Report of Spencermartinsia viticola, Neofusicoccum australe, and N. parvum Causing Branch Canker of Citrus in California." Plant Disease 95, no. 6 (June 2011): 770. http://dx.doi.org/10.1094/pdis-02-11-0092.
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Dothiorella gummosis and canker on citrus is generally viewed as a minor disease but can result in serious decline of trees. Symptoms, mostly found on branches, include grayish-to-brown cast on cankered bark, which can extend into the xylem. Dothiorella gummosis was earlier believed to be caused by Dothiorella gregaria (2). In a continuing survey on citrus in six California counties (Fresno, Riverside, San Diego, San Luis Obispo, Tulare, and Ventura) in 2010, branch cankers were collected. Small pieces of symptomatic tissues were plated onto potato dextrose agar amended with 0.01% tetracycline (PDA-tet) and incubated at 25°C for 4 days. Fungi most frequently isolated were initially identified as Botryosphaeriaceae based on morphological characters (1,3). Total genomic DNA was PCR amplified with primers Bt2a/2b for the β-tubulin (BT); EF1-728F/986R for the elongation factor α-1 (EF); and ITS4/5 for the internal transcribed spacer ITS1-5.8S-ITS2 regions (3). Sequences were compared in a BLAST search. Spencermartinsia viticola UCP105 was isolated from cv. Parent Washington on Sour Orange rootstock in Tulare County, Neofusicoccum australe UCR1110 from cv. Satsuma in Riverside County, and N. parvum UCR1166 from cv. Meyer Lemon on Volkameriana rootstock in Ventura County. Sequences of UCP105, UCR1110, and UCR1166 have been deposited in GenBank under Accession Nos. JF271766, JF271776, and JF271780 for BT; JF271784, JF271793, and JF271796 for EF; and JF271748, JF271758, and JF271762 for the ITS regions. The sequences matched with isolates in GenBank as follows: ITS region of strain UCP105—98% match with Accession Nos. AY905556–8; BT of strain UCR1110—99% with GU251879–80; and EF of strain UCR1166—98% with GU251238. Pathogenicity tests were conducted by inoculating green shoots of healthy citrus trees similar to cultivar/rootstock from which each isolate was obtained. Fresh wounds were made on 1-year-old citrus shoots with a 3-mm cork borer, and the freshly wounded surfaces were inoculated with 3-mm mycelial plugs from 5-day-old cultures on PDA-tet. Control shoots were inoculated with sterile agar plugs and each treatment had 10 replicates. Inoculated wounds and shoot ends were covered with petroleum jelly and wrapped with Parafilm to prevent desiccation. Shoots were incubated at 25°C in moist chambers for 4 weeks. Lesions were observed on all inoculated shoots except for the control. Mean lesion lengths were 6.4, 7.0, and 6.9 cm for UCP105, UCR1110, and UCR1166, respectively, which were significantly (P = 0.05) different from the control (0.8 cm). The three isolates were reisolated from symptomatic tissues of inoculated shoots to confirm their pathogenicity. This test was repeated and similar results were obtained. Results indicate that there are multiple species in the Botryosphaeriaceae family causing symptoms on citrus that were previously believed to be caused by D. gregaria. To our knowledge, this is the first report of S. viticola, N. australe, and N. parvum on citrus in California. References: (1) P. W. Crous et al. Stud. Mycol. 55:235, 2006. (2) V. McDonald et al. Plant Dis. 93:967, 2009. (3) B. Slippers et al. Mycologia 96:83, 2004.
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Serdani, M., S. Rooney-Latham, K. M. Wallis, and C. L. Blomquist. "First Report of Colletotrichum phormii Causing Anthracnose on New Zealand Flax in the United States." Plant Disease 97, no. 8 (August 2013): 1115. http://dx.doi.org/10.1094/pdis-12-12-1155-pdn.
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Phormium colensoi Hook.f. (syn. P. cookianum), New Zealand flax, (family Xanthorrhoeaceae) is popular in ornamental landscapes in the United States because of its sturdy blade-like foliage available in diverse colors. In February 2012, the Oregon State University Plant Clinic received three potted plants of P. colensoi ‘Black Adder’ from a commercial nursery in Santa Cruz County, California. The margins and midribs of several leaves had brown lesions that were variable in size, and fusiform to ellipsoidal in shape. Embedded in the lesions were black acervuli without setae that exuded salmon-colored spore masses under moist conditions. Conidia were hyaline, cylindrical to fusiform, straight to slightly curved, and 22.4 to 35.2 × 4.0 to 6.4 (average 24.7 × 4.9) μm. Based on morphology, the fungus was confirmed by USDA-APHIS National Identification Services to be Colletotrichum phormii (Henn.) D.F. Farr & Rossman (2). In March 2012, the California Department of Food and Agriculture Plant Pest Diagnostic Lab received additional samples from the same nursery lot (25% disease incidence) from which a similar fungus was recovered. rDNA sequences of the internal transcribed spacer (ITS) region from the California isolate (GenBank KC122681), amplified using primers ITS1 and ITS4 (2), were 100% identical to multiple species of Colletotrichum, including C. phormii by a BLAST query (JQ948446 through JQ948453). ITS sequence similarity alone is not sufficient to address Colletotrichum taxonomy and must be used in combination with host range and morphology (1). Pathogenicity of C. phormii (isolate CDFA986) was tested on three ‘Black Adder’ plants, which were inoculated with 6-mm agar plugs from a 14-day-old culture grown on half strength potato dextrose agar (PDA). Leaves were wound-inoculated along the midrib using colonized plugs (4). Five leaves per plant were inoculated with C. phormii plugs and five leaves per plant were treated with uncolonized PDA agar plugs as controls. Plants were sprayed with water and incubated in plastic bags at 22°C with a 12-h photoperiod. After 48 h, the bags and caps were removed and plants were kept under the same conditions. Two weeks later, water-soaked lesions had developed on the inoculated leaves. Lesions expanded along the midrib and became fusiform in shape after 21 to 28 days. C. phormii was isolated from lesion margins of all the inoculated leaves, but not from control leaves. This experiment was repeated once with similar results. Another Colletotrichum species, C. gloeosporiodes, also occurs on Phormium spp., but differs from C. phormii in morphology and symptom expression. Subsequent nursery and landscape surveys showed that anthracnose caused by C. phormii occurs on several P. colensoi cultivars as well as on P. tenax in five California counties including Santa Cruz, Yolo, Sacramento, San Luis Obispo, and Solano. C. phormii is also reported to infect P. colensoi and P. tenax in New Zealand, Europe, the United Kingdom, Australia, and South Africa (2,3). To our knowledge, this is the first report of C. phormii causing anthracnose on Phormium in North America. This disease could impact the American nursery trade and New Zealand flax production due to crop loss and increased production costs for pest management. References: (1) J. Crouch et al. Mycologia 101:648, 2009. (2) D. F. Farr et al. Mycol. Res. 110:1395, 2006. (3). H. Golzar and C. Wang. Australas. Plant Pathol. 5:110, 2010. (4) L. E. Yakabe et al. Plant Dis. 93:883, 2009.
Dissertations / Theses on the topic "San Luis Obispo Region (Calif.)"
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Marks, Sharon L. "The Obispeno Chumash indians: San Luis Obispo County's first environmentalists." CSUSB ScholarWorks, 2001. https://scholarworks.lib.csusb.edu/etd-project/1973.
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The primary focus of this project is with the interaction between nature and people. How did the Obispeno Chumash affect their surroundings and what was the outcome? Did changes occur in the environment when other people took over the care of the land? Over the last 250 years, the Obispeno Chumash land has evolved from an ecologically green dominion under their stewardship to the present day where the area is noted for its mission, recreational value, wealth of opportunity, and a nuclear power plant located between Morro Bay and Point Buchon along the ocean.
Books on the topic "San Luis Obispo Region (Calif.)"
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E, Edgar Susan, ed. Mission San Luis Obispo de Tolosa. New York: PowerKids Press, 2003.
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Hoving, Gary L. San Luis Obispo County Sheriff's Department. Charleston, S.C: Arcadia Pub., 2011.
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N, Hill Gerald, ed. Santa Barbara & the Central Coast: California's Riviera. 3rd ed. Guilford, Conn: Globe Pequot Press, 2004.
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Seymour, Barbara. Portrait of a place: San Luis Obispo. San Luis Obispo, Calif. (P.O. Box 612, San Luis Obispo 93406): Garden Creek Publications, 1986.
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E, Edgar Susan, ed. Mission of San Luis Obispo de Tolosa. New York: PowerKids Press, 2000.
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The San Luis Valley : land of the six-armed cross / Virginia McConnell Simmons. 2nd ed. Niwot: University Press of Colorado, 1999.
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Madonna, Phyllis. Madonna Inn: My point of view. San Luis Obispo, Calif: Pick & Shovel Pub., 2002.
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Dupras, Don L. Mineral land classification: Portland cement concrete aggregate and active mines of all other mineral commodities in the San Luis Obispo-Santa Barbara production-consumption region. Sacramento: California Dept. of Conservation, Division of Mines and Geology, 1989.
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Miller, Russell V. Mineral land classification: Portland cement concrete aggregate and active mines of all other mineral commodities in the San Luis Obispo-Santa Barbara production-consumption region. Sacramento: California Dept. of Conservation, Division of Mines and Geology, 1989.
Find full textBook chapters on the topic "San Luis Obispo Region (Calif.)"
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Alexander, Earl B., Roger G. Coleman, Todd Keeler-Wolfe, and Susan P. Harrison. "Southern California Coast Ranges, Domain 3." In Serpentine Geoecology of Western North America. Oxford University Press, 2007. http://dx.doi.org/10.1093/oso/9780195165081.003.0021.
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The Southern California Coast Range domain is a mountainous region with subparallel ridges aligned north–south, or more precisely north, northwest–south, southeast, and with intervening valleys that are controlled by strike-slip faulting. It extends about 400 km from the Golden Gate at the entrance to San Francisco Bay south to the Transverse Ranges that have east–west trending ridges. The domain corresponds to a physiographic region about 400 km long and 100 km wide that is bound by the Pacific Ocean on the west, the Great Valley of California on the east, on the north by the drainage outlet of the Sacramento and San Joaquin Rivers through the Carquinas Straight and San Pablo Bay, and on the south by the Transverse Ranges. Ridges in the Southern California Coast Ranges generally have nearly level crests (Page et al. 1997), but they range considerably in height up to about 1500 m on some of the higher peaks. No streams from the Great Valley cross the Southern California Coast Ranges to the Ocean; the Great Valley drains through the Carquinez Straight and Golden Gate at the north end of these ranges. The larger streams in the Southern California Coast Ranges drain from the Santa Clara Valley, Salinas Valley, and Cuyama Valley to the San Francisco, Monterey, and San Luis Obispo bays. Only relatively small streams drain to the Great Valley, but some of them have large alluvial fans in the valley. There are many Tertiary-faultbound valleys and basins among the mountain ranges. Some of the more prominent basins are the Santa Maria basin, Carrizo Plains, Paso Robles basin, and Watsonville basin. Serpentine is scattered in relatively small bodies throughout the domain and is concentrated along some of the major faults and in the New Idria area (locality 3-12). Climates range from cool and foggy along the coast to warm inland, with hot and dry summers inland from the fog belt.