Secular decline in cranioskeletal size over two millennia of interior central California prehistory: Relation to calcium deficit in the reconstructed diet and demographic stress

An osteometric study of residual rickets (RR) skeletal plasticity has been made of a time-ordered sequence of fifteen series of adult skeleton sets (n=359) from the Great Valley of central California (GV), spanning the three archaeological horizons of California Indian prehistory in this region: Early (EH), Middle (MH) and Late (LH). By least-squares linear regression analysis, a clear and continuous downward trend obtained in cranioskeletal size in both sexes, proceeding from EH to LH in the GV sequence, pari passu with a steady upward trend in the RR-15 score. To ascertain if dietary calcium deficit (CADEF), a known cause of active rickets, can explain the observed secular increase in RR, the aboriginal diet was reconstructed by the diet grid method: CADEF was found to rise from borderline in the EH, to moderate in the MH, to severe in the LH, as the subsistence base shifted gradually away from hunted prey, and storable seed foods—mainly leached acorn meal—became the dominant source of energy. Further regression analysis has shown that the secular upward trend in CADEF is highly correlated with the temporal clines of the GV sequence, directly with the RR-15 score, and inversely with cranioskeletal size: in round numbers, one grade of CADEF brings about a loss of 120 cm³ or 4 per cent in partial skeleton volume. Two biocultural influences—demographic stress (DS) in females, and the less common ‘male nutritional advantage interaction co-factor’ (MNAIC)—modulate the primary bone antitrophic CADEF effect: DS enhancing, MNAIC ameliorating.     

Archaeological Amerindian and Eskimo cranioskeletal size variation along coastal western North America: relation to climate,the reconstructed diet high in marine animal foods,and demographic stress

A quantitative bioenvironmental study of cranioskeletal size has been made of a latitude-ordered sequence of 14 series of adult skeleton sets (N=305): the archaeological remains of aboriginal maritime peoples inhabiting the west coast of North America between southern California and the Arctic. Of eight osteometric parameters of cranioskeletal size developed, the most important are partial skeleton volume (PSK) and cranial capacity (CC); and the principal bone-affecting environmental factors are the northerly climate (CLIM2c), the reconstructed diet deficient in calcium and overabundant in animal foods and vitamin D (DIET3c), and demographic stress (DSg). Prior research has demonstrated that cranioskeletal size increases with geographical latitude and decreases under dietary calcioprivation and unphysiologically high birth rates. Upon linear multifactorial statistical analysis our main finding, limited to the Amerindian subsequence (n=11 series) from the Santa Barbara Channel, the San Francisco Bay Region and the Northwest Coast, is that PSK and CC vary in direct proportion to CLIM2c, and inversely with DIET3c and DSg. Controlling for the latter two osteoantitrophic factors, coastal Amerindian female PSK rises by 9% between 34 and 54°N latitude, CC by 5%; and the male incremental rates are somewhat higher, 13 and 10%, respectively. This newly discovered climate-dependent race cline, an example of Bergmann's Rule, is interpreted as factual evidence of a mid-Wisconsin or earlier arrival date for the first Palaeoindians. Cranioskeletal size of the very small (n=3 series) Western Eskimo subsequence approximates the northernmost values of the coastal Amerindian distribution. © 1998 John Wiley & Sons, Ltd.     

Infrastructural Activism: Google Bus Blockades,Affective Politics,and Environmental Gentrification in San Francisco

Between 2013 and 2018, the San Francisco Bay Area saw the rise of “Google bus blockades”—a form of protest against gentrification, growing inequality and a housing crisis linked to the economic impacts of the technology sector on the region. Based on two years of ethnographic fieldwork with housing activists in the San Francisco Bay Area, this article argues that the disruptive tactic of “the Google Bus blockade” can be understood as a form of infrastructural activism—a flexible political form that uses the interruption of infrastructure for political ends. The blockades politicised the “Google buses” and transformed them into symbols of gentrification and sites of resistance. Protestors constructed a political analysis that drew connections between struggles for housing, racial and environmental justice and brought together material, affective and political critiques of infrastructure.     

Industry builds the city: the suburbanization of manufacturing in the San Francisco Bay Area, 1850–1940

The San Francisco Bay Area demonstrates how industrial dispersal had created the sprawling form of the American metropolis. Neither change in transport modes nor residential suburbanization is principally responsible for shaping the outward spiral of urbanization. Manufacturing began its outward march from the outset of the city's industrialization, establishing peripheral nodes of employment and working class residence within San Francisco, then beyond the city limits in South San Francisco and especially the East Bay. The main cause of decentralization has been industrial shifts; the outbreak of new activities in new places, normally in the form of industrial districts at various spatial scales. A second cause has been the orchestration of development by business leaders through property ownership and political manoeuvring guided by a general vision of metropolitan expansion, whether in co-operation or competition with one another.     

Avian resource depression or intertaxonomic variation in bone density? A test with San Francisco Bay avifaunas

Previous analyses of the Emeryville Shellmound fauna suggested that ever-expanding late Holocene human populations of the San Francisco Bay area depressed a wide range of vertebrate taxa, including cormorants (Phalacrocorax), geese (Anserinae), and large shorebirds (e.g., Numenius, Limosa). Far-reaching implications for prehistoric human behavior, historical ecology, and modern conservation biology have resulted from that work. We test the generality of the bird-based conclusions here by documenting temporal trends in avifaunal abundances from five additional sites located on the San Francisco Peninsula. Analyses of these data reveal patterns identical to those found at Emeryville, showing significant declines through time in the relative abundances of both geese and cormorants between about 2000 and 700 B.P. New photon absorptiometric-based density data for cormorants, geese, and ducks (Anatinae) are used to determine if the declines through time in the relative abundances of geese and cormorants are correlated with variation in the extent of density-mediated attrition observed in these faunas. The data and analyses presented here suggest that while density-mediated attrition played a role in structuring element abundances in these avifaunas, there is no evidence that it varied systematically through time to produce the revealed patterns in taxonomic abundances. Resource depression thus remains a viable hypothesis for the declining abundances of large-sized waterbirds during the late Holocene of the San Francisco Bay region. The new bone density data we present should be useful to analyses of archaeological and paleontological avifaunas wherever these or related taxa are found around the world.     

Brackish water foraging: isotopic landscapes and dietary reconstruction in Suisun Marsh,Central California

While bone stable isotope signatures of humans foraging in open coastal and fully terrestrial environments have been relatively well documented, the signature of foraging near brackish-water estuaries is less well known. This study examines the Central California isotopic landscape, or isoscape, showing how foods in different ecosystems have distinctive isotopic compositions. We present new bone collagen and apatite stable isotope data from two Late Holocene sites (CA-SOL-11 and CA-SOL-69) near Suisun Marsh, a low salinity brackish water estuary upstream from San Francisco Bay. Faunal remains at the sites include significant numbers of aquatic resources including fish and shellfish, in addition to terrestrial mammals, while paleobotanical remains suggest mainly terrestrial nuts and seeds. Stable isotope data at the population level corroborate this finding and show consumption of significant levels of brackish water nutrients, including both dietary protein and dietary carbohydrates and fats, paired with terrestrial foods. This dietary focus generates a unique brackish-water isotopic signature that is distinct from others in Central California. The documentation of an isoscape with strong regional gradients can be of tremendous help in reconstructing ancient patterns in subsistence, migration, and trade.     

Paleodietary analysis of a San Francisco Bay Area shellmound: stable carbon and nitrogen isotope analysis of late Holocene humans from the Ellis Landing site (CA-CCO-295)

The late Holocene archaeofaunal record of the San Francisco Bay Area demonstrates temporal declines in the abundance of low-cost, high-ranked marine and terrestrial resources. During later periods of occupation, faunal assemblages are often dominated by lower-ranked, higher-cost resources, suggesting an increase in diet breadth through time. Archaeological resource intensification models argue that this marks a late Holocene decline in foraging efficiency in the Bay Area, driven by human-induced harvest pressure. This study examines dietary change in the region using stable carbon and nitrogen isotope data from 65 human burials, spanning two temporal components (cal AD 55–890 and cal AD 762–1550) at the Ellis Landing site (CA-CCO-295). The strong linear relationship between collagen carbon and nitrogen isotope values reflects both marine and terrestrial food consumption, with individuals showing a high level of dietary variability at the site. No temporal trend or meaningful sex differences were found in isotope values. The widening of diet breadth predicted by the archaeofaunal record occurred prior to the occupation of the Ellis Landing shellmound site. The trend in exploiting a greater amount of terrestrial resources during the Middle and Late Period in central California was supported by isotopic evidence.     

The Post‐Industrial “Shop Floor”: Emerging Forms of Gentrification in San Francisco's Innovation Economy

The San Francisco Bay Area in California is undergoing a technology‐driven wave of growth arguably more thoroughgoing than the first “dot‐com” bubble, fueling hypertrophic gentrification and tales of a deeply class‐divided, “Blade Runner kind of society”. While Silicon Valley is still the industry's employment center, San Francisco is seeing faster tech firm growth, and is transforming its downtown to become more “livable” and promoting public space as key to innovation. In this context, this paper offers a reading of urban public space not just as a consumption amenity but also as the “shop floor” of a labor process that goes beyond the walls of the firm to mobilize the social itself in the production of privately appropriated value. With innovation now the watchword of gentrification, the stakes of this shift oscillate between the total commodification of urban vitality and the recognition of the social process of value production itself.     

Geochemical methods for inferring seasonal occupation of an estuarine shellmound: a case study from San Francisco Bay

Seasonal patterns of Native American residence and use of shell mounds of the San Francisco Bay area, California are of great interest. This work investigates seasonal occupation by means of a new method for interpretation of geochemical data from Mytilus trossulus specimens recovered from one of these structures, the Ellis Landing Shell Mound (CA-CCO-295). The approach, which is suitable for relatively small shell fragments from a variety of archaeological contexts, is used to infer the environmental conditions (temperature and salinity of ambient water) at harvest time, compared with average conditions for the period, and thus estimate the season during which the shells were harvested. This information, in turn, is employed to evaluate current models about the growth and construction of prehistoric shell mounds in San Francisco Bay. The method was applied to seven different lenses in the shell mound ranging in age from ∼240 cal yr BP to ∼3510 cal yr BP. We found that, although seasonal occupation varied over time, it generally was confined to summer through late fall, with little indication of winter gathering. Our findings suggest that California shell mounds, such as Ellis Landing, were constructed in a very different manner than some other mounded places used by contemporaneous hunter-gatherers elsewhere in North America.     

A functional analysis of grinding stones from an early holocene site at Donghulin,North China

The processes that led to the transition from small mobile groups of hunter-gatherers in the Late Pleistocene to sedentary communities of the Early Holocene in north China are poorly understood. The Donghulin site in Beijing was occupied at the onset of the Holocene, and excavations have revealed a rich archaeological record for investigating the changing subsistence strategies during this transitional period. A functional study of two grinding stones (a slab and a handstone) near a burial dated to 9220–8750 cal BC at Donghulin investigated the range of plants exploited during this early occupation period. Starch residues indicate that the grinding stones were used for processing plants, and confirm processing of acorns, which is consistent with the incidence of oak in the pollen record. The usewear, with only rare patches of developed polish, suggests that plant parts of low silica content were processed, although usewear on the handstone suggests processing of two or more plant taxa. The results suggest that the use of grinding stones to process plant foodstuffs, particularly acorns, may have played a major role in the subsistence strategy during the transitional period to sedentism and agriculture in some parts of north China.     

New insights about the construction and use of shell mounds from the geochemical analysis of mollusks: an example from the greater San Francisco Bay

A new method developed by Schweikhardt et al. (2011) for the geochemical analysis of bay mussels is applicable (when combined with radiocarbon assessments) for examining the seasonal construction patterns and growth cycles of coastal mound sites over time. Ideally suited for the analysis of mollusk fragments in museum collections, this method allows archaeologists to evaluate divergent models about the functions of mound sites, as well as the mobility practices and social organizations of the mound builders. In this case study, the method is employed to examine two adjacent mounds (Ellis Landing, Brooks Island) in the San Francisco Bay Area, California to assess whether their occupants may have participated in a broader multi-site community dating to the Late Period (1100–250 BP).     

Mousterian vegetal food in Kebara Cave,Mt. Carmel

This paper reconstructs the vegetal diet of the Middle Paleolithic humans in Kebara cave (Mt. Carmel, Israel) on the basis of a large collection of charred seeds and other vegetal food remains uncovered during the excavations. The human choices of mainly legumes reflects the gathering activities during springtime when often the common hunted species (gazelle and fallow deer) were fat depleted. Minor fall activities are indicated by the collection of acorns and pistachio nuts. This vegetal dietary information adds another aspect to the range of subsistence activities of the late Mousterian occupants of Kebara cave, and sheds further light on the semi-sedentary use of the cave as revealed from analysis of animal bones.     

Surviving in the margins of a genocide case in the making: recognizing the economy of testimony at stake in research on political violence

ABSTRACT

In this article, we aim to draw attention to the hopes, frustrations and disillusions that so-called ‘transitional justice’ projects produce in drastically poor, war-torn, historically marginalized but politicized Indigenous communities. Drawing on extensive ethnographic research we conducted separately between 1982 and 2010 in Guatemala and Mexico, we describe the ways in which the world came to know about Finca San Francisco’s massacre, committed by the Guatemalan army on 17 July 1982, as part of its scorched earth policy. We then look at the various forms of reparations its survivors have been the subject of. In so doing, we focus more specifically on how the Center for Human Rights Legal Action (CALDH), the non-governmental human rights organization that was behind the Ríos Montt genocide case, mobilized Finca San Francisco’s massacre survivors to become participants in the trial. After examining how the survivors of Finca San Francisco responded to CALDH’s mobilization efforts, we reflect on the kind of ‘gift’ these survivors expected in return for their stories of annihilation and destruction. Our goal is to bring to light the ‘economy of testimony’ that human rights activists, journalists or social scientists become entangled in once they ask genocide survivors to testify about the brutal deaths of their loved ones.     

Patterns of Cranial Trauma in a Prehistoric Population from Central California

Evidence of cranial trauma was investigated in a skeletal sample from the site CA-Ala-329 located on the eastern side of San Francisco Bay, Central California. The sample included 365 crania, including 134 adult males, 104 adult females, 22 adults of indeterminate sex and 105 subadults. Evidence of cranio-facial fracture was found in eight individuals, one of whom is an adolescent. Thus, the frequency in adult crania of traumatic injury is 7/260 (2.7 per cent). Of the seven individuals of known sex displaying such cranial trauma, all are male. The injuries are generally suggestive of some form of interpersonal aggression, with five healed vault fractures, one lesion with an embedded obsidian fragment (a probable projectile point) and two healed facial fractures. Further clear evidence of interpersonal aggression has been previously determined in this sample and has been reported at even higher levels elsewhere in California. © 1997 by John Wiley & Sons, Ltd.     

Strandloping as a Resource-Gathering Strategy in the Cape,South African Holocene Later Stone Age: The Verloren Vlei Record

ABSTRACT

Elands Bay and adjacent coastline near the mouth of the Verloren vlei on the South African Atlantic coast offered Later Stone Age foragers a variety of marine, estuarine, and terrestrial food resources. We suggest that strandloping (beachwalking or beachcombing) by latest Holocene foragers as a regular practice constituted an important component in their repertoire of subsistence activities. Washed-up mussels, seals, birds, whales, and other recently dead animals would have been available to such strandlopers. We distinguish strandloping as a subsistence practice from the procurement of living prey, including shellfish, mammals, birds, and other animals. The Holocene archaeological record of the Elands Bay area suggests changes through time in resource use, and these changes appear to be recognizable in patterns of shellfish gathering. During the latest part of the Holocene, between about 1,500 and 300 years ago, subsistence practices display a distinctive character that perhaps conforms more strongly than previously to what we conceive of as strandloping.     

Race,Waste, and Space: Brownfield Redevelopment and Environmental Justice at the Hunters Point Shipyard

This paper advances the concept of “waste formations” as a way of thinking together processes of race, space, and waste in brownfield redevelopment projects. Defined as formerly industrial and contaminated properties, in the 1990s brownfields emerged as the grounds for new forms of urbanization and an emerging environmental remediation industry. Through their redevelopment, the twentieth century's urban wastelands—environmentally degraded, economically divested, and often racially marked—have become sites of investment, resignification, and value formation. The concept of waste formations provides a critical framework on the ways these socio‐ecological transformations rework twentieth century urban inequalities—in particular, the articulation of waste and toxic waste—and the ways they produce new geographies of environmental injustice through the displacement of toxic waste to newly waste‐able spaces. This paper develops an analytic of waste formations and applies it to the process of brownfield redevelopment at the Hunters Point Shipyard in southeast San Francisco.     

Some Aspects of the Influence of Scientific and Technical Progress on the Formation of Economic Regions (with particular reference to the United States)

The concentration of research and development in the San Francisco Bay area is found to have attracted related aerospace and electronics industries, thus giving rise to a new type of economic region focused on research activities. The atomic and aerospace industry of New Mexico arose because of the need of having manufacturing facilities near testing grounds and missile ranges in desert areas, but is virtually unrelated to the rest of the New Mexico economy. Industries not dominated by any particular locational factor are being attracted to the dry subtropics of the United States, where the provision of water supplies and refrigeration and air-conditioning produces attractive living conditions for a skilled labor force. Advances in computer technology and electrical communications facilitate centralized industrial management and thus affect plant location.     

World City Network Integration in the Eurasian Realm

A team of authors from the Globalization and World Cities (GaWC) research network explores the main empirical features of the global economic integration of Eurasia through an analysis of the (shifting) position of that macroregion's key cities. More specifically, they examine the gateway roles played by key cities in four major subregions—China, the former Eastern Bloc (FEB, i.e., Central and Eastern Europe), former Soviet Union (FSU), and India—in the channeling of transnational flows of capital, goods, knowledge, and people in 2000-2008, focusing on the globalization of firms in the financial and business service sectors. Although cities in the four subregions share a common recent history of transition from closed and state-centered to open and market-based economies, the study reveals the persistence of distinctive geographical idiosyncrasies in their connections across the globe. Journal of Economic Literature, Classification Numbers: F020, F200, O180, P300. 4 figures, 3 tables, 1 appendix, 39 references.     

Baseline Models for Two‐Mode Social Network Data

Baseline models have been used in the analysis of social networks as a way to understand how empirical networks differ from “random” ones. For the purposes of social network analysis, a “random” network is one chosen—at random—from a population of possible graphs derived from a given generating function. Although these principled hypothesis tests have a long history, many of their properties and extensions to multiple data structures—here, specifically two‐mode data—have been overlooked. This article focused on applications of different baseline models to two data sets: donations and voting of the 111th U.S. Congress, and organizations involved in forums on watershed policy in San Francisco, USA. Tests using each data set, but with different baseline reference distributions, will illustrate the range of possible questions baseline models can address and the differences between them. The ability to apply different models and generate a constellation of results provides a deeper understanding of the structure of the system.