The Changing Spatial Concentration of America’s Rural Poor Population

This paper documents changing patterns of concentrated poverty in nonmetro areas. Data from the 1970 through 2000 U.S. Census Summary Files reveal the changing shares of poor people and children living in rural counties with disproportionately poor populations. Nonmetro poverty rates – both overall and for children – declined more rapidly than metro rates in the 1990s. The 1990s also brought large reductions in the number of high-poverty nonmetro counties, and declines in the share of rural people, including rural poor people, who were living in them. In particular, the number and percentage of rural people living in extremely poor counties (i.e., over 40 percent) declined dramatically. This suggests a “drying up” of America’s rural pockets of poverty and indicates a decline in spatial inequality in nonmetro America, at least at the county level. On a less optimistic note, concentrated poverty among rural minorities remains exceptionally high (e.g., almost one-half of rural blacks live in poor counties). Moreover, the recent transformation of concentrated rural poverty may be short-lived. Rural children – especially rural minority children -- have poverty rates well above national and nonmetro rates, the concentration of rural minority children is often extreme (i.e., over 90 percent lived in high-poverty counties), and the number of nonmetro counties with high levels of persistent child poverty remains high. Rural children may be more disadvantaged than ever, if measured by their lack of exposure to middle-class role models, and their economic divergence with the rest of the nation’s children

The Changing Faces of America’s Children and Youth

Recent U.S. Census Bureau projections indicate that by the middle of this century, non-Hispanic whites will cease to be a majority of the American population. In this article we document how for America’s youngest residents, the future is already here. America’s rapidly changing racial and ethnic composition has important implications for intergroup relations, ethnic identities, and electoral politics

The changing faces of America\u27s children and youth

The U.S. Census Bureau estimates indicate that between July 2008 and July 2009, 48.6 percent of the 4 million children born in the United States were minorities. In contrast, nearly 60 percent of the children born ten years ago were non-Hispanic white. This rapid change demonstrates that America\u27s youth are at the forefront of the country\u27s rapidly shifting demographic makeup. This brief reveals the factors causing this increase in the proportion of minority births

Population growth in new Hispanic destinations

Natural increase—more births than deaths—is now the major engine of Hispanic population growth in many large metro areas and their suburbs, as well as numerous smaller metropolitan areas and rural communities. Hispanics now account for half of U.S. population growth, and Hispanic population growth is the reason many communities grew instead of declined

The Changing Spatial Concentration of America\u27s Rural Poor Population

This paper documents changing patterns of concentrated poverty in nonmetro areas. Data from the Decennial U.S. Census Summary Files show that poverty rates—both overall and for children—declined more rapidly in nonmetro than metro counties in the 1990s. The 1990s also brought large reductions in the number of high-poverty nonmetro counties and declines in the share of rural people, including rural poor people, who were living in them. This suggests that America\u27s rural pockets of poverty may be “drying up” and that spatial inequality in nonmetro America declined over the 1990s, at least at the county level. On a less optimistic note, concentrated poverty among rural minorities remains exceptionally high. Roughly one-half of all rural blacks and one-third of rural Hispanics live in poor counties. Poor minorities are even more highly concentrated in poor areas. Rural children—especially rural minority children—have poverty rates well above national and nonmetro rates, the concentration of rural minority children is often extreme (i.e., over 80% lived in high-poverty counties), and the number of nonmetro counties with high levels of persistent child poverty remains high (over 600 counties). Rural poor children may be more disadvantaged than ever, especially if measured by their lack of access to opportunities and divergence with children living elsewhere. Patterns of poverty among rural children—who often grow up to be poor adults— suggest that recent declines in concentrated rural poverty may be short-lived

The changing faces of America's children and youth

Recent U.S. Census Bureau projections indicate that by the middle of this century, non-Hispanic whites will cease to be a majority of the American population. In this article we document how for America's youngest residents, the future is already here. America's rapidly changing racial and ethnic composition has important implications for intergroup relations, ethnic identities, and electoral politics.Population ; Youth

Correlating Methane Production to Microbiota in Anaerobic Digesters Fed Synthetic Wastewater

A quantitative structure activity relationship (QSAR) between relative abundance values and digester methane production rate was developed. For this, 50 triplicate anaerobic digester sets (150 total digesters) were each seeded with different methanogenic biomass samples obtained from full-scale, engineered methanogenic systems. Although all digesters were operated identically for at least 5 solids retention times (SRTs), their quasi steady-state function varied significantly, with average daily methane production rates ranging from 0.09 ± 0.004 to 1 ± 0.05 L-CH4/LR-day (LR = Liter of reactor volume) (average ± standard deviation). Digester microbial community structure was analyzed using more than 4.1 million partial 16S rRNA gene sequences of Archaea and Bacteria. At the genus level, 1300 operational taxonomic units (OTUs) were observed across all digesters, whereas each digester contained 158 ± 27 OTUs. Digester function did not correlate with typical biomass descriptors such as volatile suspended solids (VSS) concentration, microbial richness, diversity or evenness indices. However, methane production rate did correlate notably with relative abundances of one Archaeal and nine Bacterial OTUs. These relative abundances were used as descriptors to develop a multiple linear regression (MLR) QSAR equation to predict methane production rates solely based on microbial community data. The model explained over 66% of the variance in the experimental data set based on 149 anaerobic digesters with a standard error of 0.12 L-CH4/LR-day. This study provides a framework to relate engineered process function and microbial community composition which can be further expanded to include different feed stocks and digester operating conditions in order to develop a more robust QSAR model

Behind at the Starting Line: Poverty Among Hispanic Infants

In this brief, authors Daniel Lichter, Scott Sanders, and Kenneth Johnson examine the economic circumstances of Hispanic infants using the Census Bureau’s American Community Survey annual microdata files from 2006 through 2010. They report that a disproportionate share of Hispanic infants start life’s race behind the starting line, poor and disadvantaged—an important finding because the proportion of all U.S. births that are Hispanic is growing rapidly. The poverty risk is especially high among rural Hispanic infants and those in new destinations. Despite higher poverty risks, Hispanic infants receive less governmental assistance. High Hispanic infant poverty has immediate and long-term consequences for infants and the nation. Failing to invest in families and children now has long-term consequences because early childhood poverty tends to set into motion a series of lifecycle disadvantages (such as insufficient parenting, bad neighborhoods, underfunded schools, and poor health care) that greatly increases the likelihood of poverty in adulthood. The authors conclude that whether today’s Hispanic children will assimilate into America’s economic mainstream is an open question, but the Hispanic infants who will help reshape America’s future require public policy attention now