# population pressure hypothesis

Population pressure, the environment and agricultural intensification : variations on the Boserup hypothesis : Pression demographique, environnement, et intensification agricole: modifications apportees a l'hypothese de Boserup (French) Increasing mouths to feed forced a more reliable and productive means to obtain food. the hospital administrator may want to test the hypothesis that the average length of stay of patients admitted to the hospital is 5 days As Blaikie and Brookfield (1987, p. 30) put it, the Boserup model ‘may be likened to a toothpaste tube—population growth applies pressure on the tube, and somehow, in an undefined way, squeezes out agricultural innovation at the other end.’ Even within a single set of ecological, technological, and demographic conditions, population pressure may prompt very different patterns of agricultural change because of differences in farmers' ability to invest, withstand risk, and attract subsidy. The long-term environmental consequences of agricultural development was a potentially destabilizing factor in all ancient states. Durkheim then went on to explain that specialization is not caused by population or social density but is an adaptation to it, making explicit references to Darwin's principles. The ecological-economic model restates the validity of the neo-Malthusian 'Population Pressure Hypothesis' (PPH) as a major factor of land degradation. Patients trust healthcare providers to protect the privacy of those disclosures. Their population densities grew more slowly than the Kofyar's, and they showed a clear aversion to theintensification of agriculture. Population Pressure Hypothesis (Mark Cohen, 1973). Agricultural facilities constructed with corvée labor represented prime agricultural land that the state could claim as its own without alienating existing property owners. Much of the empirical research done under the natural science paradigm has focused on estimating carrying capacity to identify areas of population pressure. Population-Pressure-Conflict Hypothesis; First developed by Carneiro (1970) Growth in population brings land under total utilization; Further increases in population create a shortage of land; This results in conflict; Conflict and warfare stimulate urbanization; Interregional & Intraregional Exchange Hypothesis; Trade networks lead to urbanization This may mean building on existing craft skills; often crafts judged as marketable are unfamiliar locally, and have to be taught. Lace, from the sixteenth to the nineteenth centuries, moved from courts to town gentry to village bonnets. Figure 1 schematically depicts different concentration/efficiency trajectories. Population Pressure Hypothesis (Edge Hypothesis. Archaic states were characterized by highly productive agricultural systems. The difference of two proportions follows an approximate normal distribution. Population pressure, the environment and agricultural intensification : variations on the Boserup hypothesis : Pression demographique, environnement, et intensification agricole: modifications apportees a l'hypothese de Boserup (French) When emigration is temporary and sex-selective, it disrupts family formation and the pace of childbearing by delaying marriage and separating couples. The long-run effects of emigration on population size stem from the fact that emigration entails not only the loss of the emigrant but the loss of the emigrant's descendants as well. The APCO was selected for this review to address the common criticism that health informatics research is often not grounded in theory or a conceptual framework [43–46]. Handwoven and hand-printed textiles have for centuries been among India's most successful export industries. For example, during the peak years of mass emigration, 1864–1914, emigration losses reduced potential population growth by 40 percent in Norway and by 25 percent in Sweden (Lowell 1987, p. 5). Thus policy reform and institutional change are called for, rather than policy interventions in private fertility decisions to counter these effects’ (p. 7). The same forces of economic development and modernization that stimulate emigration also operate to reduce fertility in the sending population. The development context within which most contemporary emigration originates makes a rise in birth rates an unlikely response to emigration. . In contrast, the organelle genomes of these two lineages evolved to opposite ends of the spectrum of genomic complexity, despite similar effective population â¦ According to Malthusian theory, the size and growth of the population depend on the food supply and agricultural methods. Drug $$X$$ must achive greater lowering of blood pressure than drug $$Y$$ to reject the null hypothesis; In a two-tailed alternative hypothesis $$H_0: \mu_1 = \mu_2$$ Healthcare is becoming more integrated and collaborative due to, Computers & Mathematics with Applications. Hypothesis testing is an essential procedure in statistics. States did have good reason to construct agricultural facilities. Boserup's view of, population or social density but is an adaptation to it, making explicit references to Darwin's principles. html lang="en-US" dir="ltr" data-reactroot="" data-reactid="1" data-react-checksum="-244352454">, "For societies practicing agriculture, inter- and intra-group competition for [increasingly scarce subsistence] . The vast majority of these states were dependent upon agriculture augmented by some form of water-control, terracing, and/or fertilizer. Farmers may well achieve a higher marginal return on efforts to attract subsidy (e.g., fertilizer from a government program, irrigation ditches constructed by an NGO, or new seed stocks from a development project) than on plowing or tree felling. Eder's (1991, p. 246) observation that farmers ‘make their production decisions in terms of pesos per hour, not kilograms per hour’ is apt, although it is not so much a cash/energy dichotomy but a gradient. A vital step in Darwin's thinking came when he read Malthus' Essay on Population, which argued that populations breed so rapidly that they outstrip their food supply. Apprenticeship was initially rejected, since they were seeking a pure re-creation of the essence of each craft. Such systems enhanced both agricultural productivity and reliability. Its mission is to encourage and facilitate the cross-cultural study of human culture, society and behavior in the past and present. Peasants were drawn to newly available, high quality land, and they were willing to pay for access to it. But periods of state formation do not coincide with periods of population pressure, and the study of contemporary irrigation systems in tribal societies suggests that such systems can be built and managed without centralized forms of government. Among the studies which treat craft production are several in Graburn's Ethnic and tourist arts (1976); see especially the chapters by Graburn (on Inuit soapstone carving), Kent (Puebio and Navajo weaving in the American Southwest), and Salvador (on Mola applique blouses made by Cuna Indians). Their makers are coming to be known as designer craftsmen,' and also as ‘artist craftsmen.’ There is a debate, as with some of the ethnic crafts, as to whether this is ‘art’ or ‘craft.’. Contemporary approaches to intensification tend to stress multiple and cascading causes which may be locally contextual and historically contingent (e.g., Kirch 1994). A hypothesis test evaluates two mutually exclusive statements about a population to determine which statement is best supported by the sample data. Null and alternative hypotheses must be mutually exclusive; In this case alternative hypothesis is single-tailed. Timing of population peaks of Norway lemming in relation to atmospheric pressure: A hypothesis to explain the spatial synchrony Vidar Selås a, 1 1 Department of Ecology and Natural Resource Management, Norwegian University of Life Sciences, P.O. Games of strategy will be more common in societies where political power is based on a "network strategy" (386). Durkheim even mentioned alternative responses to population pressure, such as emigration. Specifically, all highlight direct and indirect responses to, Intensification and Specialization, Archaeology of, ). In the twentieth century some firms concentrating on garment manufacture attempted to secure advantages of efficiency and control through factory production. 1977, Turner and Brush 1987). These are finally sold to consumers in Western gift shops, department stores, and clothing stores (buyer, personal communication). Use the Pima.tr data set to evaluate the hypothesis that the population mean of diastolic blood pressure for Pima Indian women is not 70. Project effort is directed towards teaching skills, securing access to materials and tools, and marketing. The review [33] found a paucity of research on the matter, but concluded that patient privacy perspectives were context-dependent and varied depending on how, with whom, and in what capacity PHI is used. In more scientific terms, there is overshoot when the ecological footprint of a human population (demographic pressure) in a geographical area exceeds that place's carrying capacity, damaging the environment faster than it can be repaired by nature, potentially leading to demographic push and possibly ecological and societal collapse. There are many craft production niches in both industrial and developing societies; this is an open set. It appears that in the 1980s a broad consensus was struck on the net assessments of demographic change. DEFINITION: A theory that population increase in the Near East/Southwest Aisa upset the balance between people and food, forcing people to turn to an agricultural way of life, credited to Lewis Binford. Age-adjusted mean systolic blood pressure (mm Hg) in adults aged 18 years and over, by hypertension status, sex, and race A hypothesis test can help determine if a difference in the estimated proportions reflects a difference in the population proportions. C. Food Abundance Hypothesis (Carl O. Sauer, 1952). The potential for HIE to improve the quality, safety, and efficiency of healthcare has made its implementation a policy priority [7]. The link between population pressure and CPRs could be traced back to Malthus1in 1798 who argued that there are diminishing returns to additional labour to land (Wilber, 1978). Where farmers do not have long-term rights to land, the private rate of discount is higher than the social rate of discount, hence private investments in land productivity will be lower than the societal optimum. Hypothesis Testing - Example - Evaluating Medication. "Political integration, social stratification, size of community and class stratification are correlated with crime" (266). Therefore, efficiency of production strategies can vary culturally, and even a purely ‘calorific’ analysis must consider social institutions that affect costs and benefits. e.g. In his study of several rural Japanese pottery-making communities, Singleton found that high demand led in some to an opening of apprenticeship to outsiders, with a decline in the authority of the master (Singleton, in Coy 1989). (75). Two salient concepts in these theories are ‘privacy paradox’ [41] and ‘privacy calculus’ [42]. Products are used by the maker or given as gifts. In Boserup's theory, agricultural methods depend on the size of the population. Definition of population pressure : the sum of the factors (as increase in numbers or excessive food consumption) within a population that reduce the ability of an environment to support the population and that therefore tend to result in migration and expansion â¦ Swallow's study of one such company finds that in a volatile export market the costs of factory production (maintaining plant and machinery, labor troubles) remain higher than those of cottage craftsmen and cottage laborers managed by intermediate capitalist merchants, under conditions of population pressure and lack of alternative unemployment (Swallow, in Goody 1982). High Blood Pressure for Health Professionals external icon includes clinical practice guidelines, systematic evidence reports, fact sheets, and more information on hypertension. The joint Darwin–Wallace papers were published in that year, while Darwin rushed to complete the Origin of Species. In the Malthusian view, when food is not sufficient for everyone, â¦ The implications of these hypotheses serve to draw a critical distinction between biologic age (aging) and chronological age and, thereby, offer an answer to a question that presently matters most in the field of hypertension: Why has it been so difficult to disentangle the genetic components of essential hypertension and to identify the variant genes responsible for elevated blood pressure in a large â¦ Major factors shaping agricultural change beyond Boserup's simple model may be grouped into the categories of ecological, social, and political-economic. Where lowered efficiency is not necessary for higher production concentration, the slope would be flatter, as indicated by non-Boserupian trajectory A. Suggested that planting was known but not necessary until population pressure forced the need. First, producers are assumed to exert the minimum effort required to meet their needs (the law of least effort). While occasionally a seamstress, weaver, or potter becomes skilled enough to sell skills or products on the market, for most commodization is not a factor. 3. what are basic of hypothesis ? Where the Kofyar had relied on pre-existing institutions for mobilizing labor to facilitate intensification, the Tiv relied on a set of interlocking institutions to facilitate movement (Stone 1997). The privacy paradox describes a phenomenon where internet users fail to engage in privacy-protective behaviours despite voicing privacy concerns. Generally, the null hypothesis states that the two … Although it requires high labor inputs (e.g., Clark and Haswell 1967), the pattern of declining yields may be overridden by the distinctive ecology of the paddy in which fertility tends to increase rather than decrease (Bray 1986). Antagonistic pleiotropy, as originally proposed by Williams, 52 is an evolutionary hypothesis with important ramifications for age-dependent rise in pulse pressure in humans. Generally, the null hypothesis states â¦ However, it is clear that Darwin's commitment to branching evolution went far beyond the conventional social values later linked to his theory, while his application of the population principle undermined Malthus' own ideology, which was an attempt to discredit the optimism of social progressionists. Tiv began migrating northward in the 1930s from a homeland known for settlement mobility (Bohannan 1954), and settlement was also highly mobile in the Assaikio area. The ability to attract such subsidy is politically mediated, and it often varies sharply among segments of a farming population. Population pressure and the social evolution of agriculturalists Southwestern Journal of Anthropology â¢ Vol/Iss. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. URL: https://www.sciencedirect.com/science/article/pii/B0080430767041589, URL: https://www.sciencedirect.com/science/article/pii/B0080430767030679, URL: https://www.sciencedirect.com/science/article/pii/B0080430767022105, URL: https://www.sciencedirect.com/science/article/pii/B0080430767020593, URL: https://www.sciencedirect.com/science/article/pii/B0080430767020672, URL: https://www.sciencedirect.com/science/article/pii/B0080430767000589, URL: https://www.sciencedirect.com/science/article/pii/B0080430767041437, URL: https://www.sciencedirect.com/science/article/pii/B0080430767022208, URL: https://www.sciencedirect.com/science/article/pii/B0080430767008342, URL: https://www.sciencedirect.com/science/article/pii/S1386505618303009, Population and Technological Change in Agriculture, International Encyclopedia of the Social & Behavioral Sciences, , which argued that populations breed so rapidly that they outstrip their food supply. Research has also analyzed the effects of increasing human populations on species loss and ecosystems. upon the crop production technology. Potential harms of privacy breaches include economic and social discrimination, hidden influence and manipulation, coercion, or censorship [18]. This gave Darwin the basis on which to erect a comprehensive account of evolution. Best studied is the production and marketing of luxury goods such as oriental rugs/carpets (see Spooner in Appadurai 1986) and carved hardwood furniture (Cooper 1980). . We optimize the generation of resources and infrastructure, increasing the load capacity. But agriculture is not only practiced partly for social ends; it is practiced by social means, which can have marked effects on how agricultural methods respond to changes in population. A hypothesis test can help determine if a difference in the estimated proportions reflects a difference in the population proportions. Much controversy also surrounds the degree of Darwin's commitment to the idea of progress. The emigration of women who are ready to begin childbearing has a larger impact on long-run population size than the emigration of women who have completed childbearing. Dependence on agriculture for subsistence will be positively associated with various forms of socioeconomic competition. Customized craft production also continues to be important, for instance in fine furniture, jewelry, pottery, and textiles. The ‘Arts and Crafts movement’ associated with William Morris in England in the second half of the nineteenth century had counterparts in the United States, and later Japan. This holds constant the effects of external subsidy that is often available. Blood pressure (mm Hg) Page 4 National Health Statistics Reports n Number 35 n March 25, 2011 Figure 3. (1997) argue that even in the intensive lowland cereal production systems, where Green revolution technologies were most successfully adopted, price and trade policy distortions are leading to significant levels of environmental and ecological degradation. She concluded that ‘Rapid population growth can slow development, but only under specific circumstances and generally with limited or weak effects’ (Birdsall 1988, p. 529). Although the selection theory undermines the ladder model of progress, historians now accept that Darwin's thinking was influenced by the assumption that competition is the driving force of a more general form of progress. Failures in agricultural intensification can be attributed to one or more of the following reasons: persistence of uncertain long-term rights to land; encroachment of cultivation onto marginal lands; collective effort required for watershed-level protective investments; and an inappropriate policy environment. In Mesopotamia, irrigation led to the salinization of the soil, first causing agriculturalists to switch from wheat to more salt-tolerant barley and then to abandon salinized areas all together. the hospital administrator may want to test the hypothesis that the average length of stay of patients admitted to the hospital is 5 days P. Pingali, in International Encyclopedia of the Social & Behavioral Sciences, 2001. Farmer incentives for regenerating soil fertility and for making erosion-prevention investments are high if secure long-term land rights exist, both to currently cultivated land and to fallow land. Beginning in the ideology of self-sufficiency with which Gandhi led the movement for independence, this continues to be centrally organized. Population pressure definition: the force exerted by a growing population upon its environment , resulting in dispersal... | Meaning, pronunciation, translations and examples Third, agricultural facilities expanded food production within the immediate hinterlands of political capitals, making it possible to feed the urban populace. E.M. Brumfiel, in International Encyclopedia of the Social & Behavioral Sciences, 2001. 1). The process of population induced technological change is by no means automatic; there are several instances where societies faced with growing population pressure have not been able to achieve sustainable intensification. Nelson Shen, ... David Wiljer, in International Journal of Medical Informatics, 2019. The CFIP consists of four data-related dimensions of privacy concern: collection, unauthorized secondary use, improper access, and errors. State a conclusion in context. However, there is a pattern of reverting to commissioning both weaving and making up of garments from smaller units—cottage weavers and small workshops. Bowler, in International Encyclopedia of the Social & Behavioral Sciences, 2001. Permanent emigration represents a loss of population in the place of origin. Boserup's view of population pressure as an independent variable driving intensification inverted the earlier Malthusian formulation. In our example, the alternative hypothesis is that there is a mean difference in blood pressure between groups: H1: The difference in systolic blood pressure between groups is not 0. For example, hunter-gatherer tribes living under low-density conditions have been known to specialize in the natural products available in their territory, trading with other tribes for other things that they need. For instance, Durham's analysis of environmental destruction in Latin America compares two separate feedback loops, both of which include population increase (Durham 1995, pp. C. Food Abundance Hypothesis (Carl O. Sauer, 1952). Population modeling became of particular interest to biologists in the 20th century as pressure on limited means of sustenance due to increasing human populations in parts of Europe were noticed by biologist like Raymond Pearl. This movement reacted to industrial production by romanticizing craft production, seeing it as preserving old techniques and a classical vision of beauty expressed in individual hand skills. Social anthropologists have studied craft production in some of these niches; other awaits research. This modern cottage industry is cheaper for manufacturers for the familiar reasons: low rates of pay; a dependent labor force lacking employment alternatives; no need to maintain plant or machines; flexibility of labor force which is only given work when demand is high. 1. He came to appreciate that, even in a stable environment, specialization would allow natural selection to continue the process of divergence by which species separate from close relatives. Malthusian population theory suggests that a reduction in the population pressure on existing resources through emigration could trigger a rise in birth and survival rates in the sending population. Information privacy, hereinafter referred to as privacy, is commonly defined as an individual’s desire or ability to control data about themselves [1–3]. Morrison, in International Encyclopedia of the Social & Behavioral Sciences, 2001. At one time, archaeologists believed that states came into existence in order to construct and manage intensified agricultural systems as a response to the problem of population pressure (this is the ‘hydraulic hypothesis’ of state formation). Farming is not necessarily better or easier, population increases lead to population pressure on resources and thus fissioning and mirgration, Domestication happens on the margin of natural habitats. Later in his career, Durkheim, along with Mauss and others, advanced a sociology of knowledge according to which our basic categories of thought, including space, time, causality, and substance, are to be explained by social causes (e.g., Durkheim 1912, Durkheim and Mauss 1903). Humans are also able to control their populations voluntarily. While Malthus saw arable land as limiting increases in production, Boserup optimistically asserted that constantly increasing population (an assumption shared with Malthus) acted as a motor, driving technological changes in land use along an extensive–intensive continuum. Much of the empirical research done under the natural science paradigm has focused on estimating carrying capacity to identify areas of population pressure. HIE presents a great challenge to patient privacy as it increases the flow of PHI. The pressure of the population leads to war. As with other attempts to make household craft production economically viable alongside industrial production, partially mechanized processes have been introduced to support handcraft skills (e.g., multiple-spindle spinning jennies are wired to electricity by villagers, Bayly, in Appadurai 1986). Page last reviewed: January 28, 2020 Although this mode of craft production for final sale in the commodity-rich markets of the West probably far exceeds in volume that of luxury goods, it seems as yet not to have been studied by anthropologists. A hypothesis test can help determine if a difference in the estimated proportions reflects a difference in the population proportions. It is usually concerned with the parameters of the population. Definition of a hypothesis It is a statement about one or more populations. The difference of two proportions follows an approximate normal distribution. Indeed, individual craft production may be seen as the separation of craft skills from the market. We use cookies to help provide and enhance our service and tailor content and ads. Logic of the NRC report and research institutions exchange, luxuries—and the tools for making these, were the of... 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