Anderson Valley, Mendocino County

1954 ◽  
Vol 33 (4) ◽  
pp. 361-367 ◽  
Author(s):  
T. Albert Strobridge
Keyword(s):  
Mendocino County

The Belltoad, Ascaphus truei, in Mendocino County, California

Copeia ◽  
1952 ◽  
Vol 1952 (3) ◽  
pp. 193
Author(s):  
George W. Salt
Keyword(s):  
Ascaphus Truei ◽  
Mendocino County

"Washington is a Long Way Off": The "Round Valley War" and the Limits of Federal Power on a California Indian Reservation

2011 ◽  
Vol 80 (4) ◽  
pp. 557-596
Author(s):  
Kevin Adams ◽  
Khal Schneider
Keyword(s):  
Federal State ◽  
Coercive Power ◽  
Northern California ◽  
The West ◽  
Indian Reservation ◽  
Indian Reservations ◽  
Indian Country ◽  
Mendocino County ◽  
Indian Affairs ◽  
Local Courts

In 1887 the Office of Indian Affairs requested that the Army evict the handful of white trespassers who claimed over 90 percent of the Round Valley Reservation in Northern California. The trespassers turned to local courts to block their evictions, and a county judge dispatched the Mendocino County sheriff to arrest the federal officer who persisted with his orders. The ensuing "Round Valley War" shows that, although elites associated with Indian affairs took federal supremacy on Indian Reservations for granted, and while historians have also tended to treat the West, and "Indian Country" in particular, as a domain where federal prerogatives reigned supreme, in the aftermath of the Civil War anti-statism and Democratic localism presented effective counterclaims to the coercive power of the federal state.

Evaluation of a Low-Cost Program of Road System Traffic Safety Reviews for County Highways

2003 ◽  
Vol 1819 (1) ◽  
pp. 231-236 ◽  
Author(s):  
Stephen H. Ford ◽  
Eugene C. Calvert
Keyword(s):  
Traffic Safety ◽  
Low Cost ◽  
Department Of Transportation ◽  
Rural County ◽  
California Department ◽  
Total Cost ◽  
The Road ◽  
Mendocino County ◽  
Accident Data ◽  
Road System

Mendocino County is a large rural county in northern California with more than 1,000 centerline miles of county-maintained roads. The terrain is mountainous, with a few small inland valleys. During the 1990s, the Mendocino County Department of Transportation developed a program of road system traffic safety reviews to improve signing and markings on the arterials and collectors in the system. The effectiveness of the program was measured by comparing accident data for the reviewed roads with data for roads not included in, or influenced by, the reviews. To control for different groups of factors, two sets of control roads were selected—county-maintained roads not reviewed and state highways within the county. Over two consecutive 3-year review cycles, the number of accidents on the reviewed roads fell by 42.1%, while on the county-maintained roads not reviewed they increased by 26.5%, and on the state highways they fell by 3.3%. The total cost to conduct the reviews and implement the recommended changes was $ 79,300. The accident histories of the control roads were used to define the limits of the range of probable benefits. On the basis of average accident costs provided by the California Department of Transportation, calculated savings ranged from $ 12.58 million to $23.73 million, yielding a costs-to-benefits ratio between 1:159 and 1:299. The county is expanding the road system traffic safety review program to cover its entire maintained road system.

The iron-rich blueschist-facies minerals: 3. Zussmanite and related minerals

1980 ◽  
Vol 43 (329) ◽  
pp. 605-614 ◽  
Author(s):  
Robert Muir Wood
Keyword(s):  
Concentration Gradient ◽  
Ferrous Iron ◽  
Type Species ◽  
The Other ◽  
Manganese Concentration ◽  
Pressure Side ◽  
Mendocino County ◽  
Cell Dimensions ◽  
New Form ◽  
Cell Base

SummaryZussmanite has been found at only one locality: the Laytonville Quarry, Mendocino County, California. There are, however, present at this locality, two separate, but apparently inter-related minerals that from the evidence of chemistry, and limited diffraction information, appear to be zussmanite-type species. Their relative structural similarities are demonstrated within two rocks from the quarry in which a manganese concentration gradient has allowed ferrous-iron-rich zussmanites to develop partly contiguous overgrowths of one or other of these two minerals, one of which is a new form that has a provisionally determined ideal formula of KAlMn3−5Si17O42(OH)14 and that is separated from ideal zussmanite compositions (of the form KAlSi17O42(OH)14) by an immiscibility gap. The other ‘zussmanite-type’ mineral has a composition that closely resembles a manganese-rich form of minne-sotaite.The first zussmanite-type species (ZU2) has been separated and not unambiguous diffraction information obtained of its cell dimensions and powder lines, which are similar to those of zussmanite but appear to have an 8 % smaller cell-base and only a two-layer repeat (as in some of the zussmanite polytypes, and as in the talc structure). It is therefore considered possible that ZU2 has an altered compatibility between the tetrahedral and octa-hedral sheet overlap, perhaps from 13 (as in zussmanite) to 12. Whilst zussmanite appears to be a blueschist-eclogite mineral, ZU2 occurs under conditions at the low-pressure side of the blueschist facies.An intermediate between zussmanite and the manganoan ‘minnesotaite’ is found in one rock in which the rims of zussmanite have been leached of potassium. As minnesotaite is more of a range of compositions than a structure (there is mounting evidence that it is not a simple talc-analogue) a consideration of the Laytonville manganoan minnesotaite as a zussmanite mineral is not unreasonable.

The meiotic behaviour of natural F1 hybrids between Trimerotropis suffusa Scudder and T. cyaneipennis Bruner (Orthoptera: Oedipodinae)

1983 ◽  
Vol 25 (5) ◽  
pp. 467-477 ◽  
Author(s):  
Bernard John ◽  
David C. Lightfoot ◽  
David B. Weissman
Keyword(s):  
Centric Fusion ◽  
Variable Number ◽  
Meiotic Behaviour ◽  
F1 Hybrids ◽  
Genotypic Differences ◽  
Meiotic Analysis ◽  
Sparse Vegetation ◽  
West Texas ◽  
Mendocino County ◽  
Division Spindle

Trimerotropis suffusa Scudder is a species which ranges from the Rocky Mountains to the Californian Sierras and the Cascade Mountains of Oregon. Additionally, to the south, it is found along the coast of California to Mendocino County. Trimerotropis cyaneipennis Bruner has a distribution from West Texas through New Mexico, Arizona, Colorado, Utah, and Nevada to southern Oregon and southern California. These two species are most commonly ecologically isolated from each other, the latter generally occurring in desert regions or those with sparse vegetation whereas T. suffusa is found in woodland situations (Strohecker et al. 1968). Even where they approximate in their distributions, the ecotones which separate them are normally broad enough to preclude contact between them. These species have, however, been found in microsympatry in a narrow ecotone in the Pueblo Mountains of Southeast Oregon. Hybrid individuals intermediate in morphology, crepitation, and diploid chromosome number occur within this ecotone. A meiotic analysis of three such hybrid males indicates that the parental species are distinguished by a fixed centric fusion. This difference tends to be obscured in the parental karyotypes which both contain a variable number of metacentric chromosomes, some fixed and some polymorphic, of inversion origin. Meiotic behaviour also identifies two potential sources of infertility in these hybrids. First, irregular segregation of the fusion chromosomes, following either linear orientation of the three-multiple chain or else from failure of the chain to form. Second, pairing failure, usually in one less commonly in two, of the autosomal pairs not involved in the fusion system. The extent of these anomalies varied between the three hybrid individuals indicating that genotypic differences between the parents also play a role in determining multiple orientation and the levels of pairing failure in both the multiple and in the other autosomes which form univalents. The univalents that do form may either segregate at random or may lag on the first division spindle. In the latter event they inhibit cytokinesis at first division, and sometimes also at second division, giving rise to macrospermatids which are, respectively, diploid (2x) or tetraploid (4x). The net result of such an anomalous meiosis is that most of the sperm produced by all three hybrids is either polyploid or aneuploid.

Revision of the milliped genus Xystocheir Cook (Polydesmida: Xystodesmidae)

1996 ◽  
Vol 74 (7) ◽  
pp. 1336-1363 ◽  
Author(s):  
Rowland M. Shelley
Keyword(s):  
San Francisco ◽  
Sierra Nevada ◽  
Pacific Coast ◽  
Local Population ◽  
Species Group ◽  
Western Slope ◽  
Species Status ◽  
The Pacific ◽  
Mendocino County ◽  
Species Groups

The California milliped genus Xystocheir Cook, occurring along the Pacific Coast and the western slope of the Sierra Nevada, comprises nine species, three being divided into a total of seven subspecies; the species are combined into four species-groups named for the oldest component. Xystocheir dissecta (Wood), abundant around San Francisco – San Pablo and Monterey bays, comprises intergrades, one true subspecies, and two apparent semispecies that are treated as subspecies; additionally, a local population in southern Mendocino County has achieved reproductive isolation and attained species status. Two new combinations, X. reducta (Causey) and X. modestior (Chamberlin), are proposed, along with the following new synonymies: Paimokia Chamberlin under Xystocheir, X. acuta Cook, X. francisca and X. milpitas, both by Chamberlin, and Cheirauxus sapiens Chamberlin under X. d. dissecta, new status; and Delocheir conservata and D. dalea, both by Chamberlin, under X. dissecta taibona Chamberlin, new status. The following new species-group taxa are diagnosed: the subspecies Xystocheir dissecta microrama, Xystocheir modestior haerens, and Xystocheir stolonifera uncinata, and the species X. prolixorama, X. solenofurcata, X. brachymacris, X. stenomacris, X. bistipita, and X. stolonifera.

Localizing control: Mendocino County and the ban on GMOs

2008 ◽  
Vol 26 (1-2) ◽  
pp. 95-105 ◽  
Author(s):  
Marygold Walsh-Dilley
Keyword(s):  
Mendocino County
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