Consulta: subjectFacets:"Population growth"
Registros recuperados: 22
Data/hora: 09/06/2024 11:26:19

Revisiting the Environmental and Socioeconomic Effects of Population Growth: a Fundamental but Fading Issue in Modern Scientific, Public, and Political Circles
Provedor de dados: 7
Autores: Mora, Camilo; Department of Geography, University of Hawaii; cmora@hawaii.edu.
Reversing ongoing declines in human welfare and biodiversity is at the core of human development. Although numerous institutions and avenues are in place to reverse such trends, there seems to be limited consideration of population growth as an ultimate driver. I review recent studies showing how the issue of population growth has been downplayed and trivialized among scientific fields, which may in part account for the reduced public interest in the issue and in turn the limited will for policy action. Different sources of evidence suggest that population growth could fundamentally affect society, nature, and the climate. Although tackling the issue of overpopulation will suffer from major impediments including scientific motivation, public scientific...
Tipo: Peer-Reviewed Synthesis
Palavras-chave: Biodiversity loss; Climate change; Debt; Employment; Population growth; Public outreach.
Ano: 2014

Demographic response to the manipulation of adult females in corn mouse populations
Provedor de dados: 67
Autores: Gómez,María D; Steinmann,Andrea R; Priotto,José W.
Variation in population abundance is a consequence of changes in demographic parameters such as survival and recruitment. These demographic parameters can be affected by intraspecific competition, thus adults may play an important role infl uencing the survival and/or reproduction of juvenile individuals in many species of small mammals. We present an analysis of Calomys musculinus populations using capturemark- recapture models in order to evaluate the effect of female removal on their demography. The study was carried out in four enclosures during two different periods: a reference period and a treatment period, with the removal of adult females. Reference period was analyzed to describe population demography without manipulations. In treatment period,...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Adult female removal; Calomys musculinus; Population growth; Recruitment; Survival.
Ano: 2012
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2012000200005

Dynamics of benthic copepods and other meiofauna in the benthic boundary layer of the deep NW Mediterranean Sea
Provedor de dados: 5
Autores: Guidi-guilvard, L. D.; Thistle, D.; Khripounoff, Alexis; Gasparini, S.
A continuous high-resolution time-series survey of the hyperbenthic community and local environmental conditions was conducted in the benthic boundary layer (BBL) of the DYFAMED-BENTHOS station (43 degrees 24.61'N, 7 degrees 51.67'E at 2347 in depth in the NW Mediterranean) between January 1996 and April 1998 using bottom-moored sediment traps and a current meter. Sediment traps were set 4 m above the bottom. Hyperbenthos was collected as 'swimmers', i.e. those organisms that are alive when they enter the traps but are not part of the particle flux. Identification of these organisms showed that similar to 90%, were meiobenthic, Copepods dominated and comprised on average 75%, of total swimmers. They were followed by nauplii (12%), annelids (7.8%),...
Tipo: Text
Palavras-chave: Biodiversity; Population growth; Emergence; Resuspension; Benthic storms; Hyperbenthos; Swimmers; Deep sea.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-7416.pdf

Major Demographic Changes in Bangladesh and their Socio-economic Correlates: Analysis of Trends
Provedor de dados: 31
Autores: Mohammad,   Hossain; Tisdell,   Clement A.
Catalogues the demographic changes in Bangladesh during the period 1975-2000 and examines how they relate to key socio-economic attributes.  Trends are examined in population growth, growth of the working age population, women’s workforce participation, age-dependency ratio, female-male ratio, longevity, fertility, mortality and mean age at first marriage.  Bangladesh has made significant breakthroughs in all these areas, a feat not matched by most other South Asian countries, but comparable with the South-East Asia region as whole.  The study isolates factors contributing to the changes in each attribute.  It assesses the correlation between Bangladesh’s demographic changes and selected socio-economic indicators namely, its per capita GDP, female labour...
Tipo: Working or Discussion Paper
Palavras-chave: Population growth; Growth of the working age population; Women’s workforce participation; Bangladesh; International Development; Labor and Human Capital.
Ano: 2003
URL: http://purl.umn.edu/106950

Is population growth conducive to the sustainability of cooperation?
Provedor de dados: 31
Autores: Stark,   Oded; Jakubek,   Marcin.
This paper asks whether population growth is conducive to the sustainability of cooperation. A simple model is developed in which farmers who live around a circular lake engage in trade with their adjacent neighbors. The payoffs from this activity are governed by a prisoner’s dilemma “rule of engagement.” Every farmer has one son when the population is not growing, or two sons when it is growing. In the former case, the son takes over the farm when his father dies. In the latter case, one son stays on his father’s farm, whereas the other son settles around another lake, along with the “other” sons of the other farmers. During his childhood, each son observes the strategies and the payoffs of his father and of the trading partners of his father, and...
Tipo: Working or Discussion Paper
Palavras-chave: Population growth; Imitation; Sustainability of cooperation; Community/Rural/Urban Development; Farm Management; Institutional and Behavioral Economics; Land Economics/Use; Production Economics; Productivity Analysis; C72; D01; D83; J19; J62; R12; R23.
Ano: 2011
URL: http://purl.umn.edu/109965

Rural America at a Glance, 2010 Edition
Provedor de dados: 31
Autores: Kusmin,   Lorin D.; Hertz,   Thomas.
Rural America At A Glance, 2010 Edition highlights the most recent indicators of social and economic conditions in rural areas for use in developing policies and programs to assist rural areas. The 2010 edition focuses on the U.S. rural economy, including employment trends, poverty, and demographics.
Tipo: Report
Palavras-chave: Rural indicators; Population; Employment; Rural unemployment; Nonmetropolitan; Nonmetro; Rural economy; Metro; Rural America; Census data; Population growth; Unemployment; Poverty; Demographics; ERS; USDA; Community/Rural/Urban Development.
Ano: 2010
URL: http://purl.umn.edu/96637

ALTERNATIVE SERVICE DELIVERY STRATEGIES FOR LOCAL GOVERNMENTS
Provedor de dados: 31
Autores: Brunet,   Alexia; McNamara,   Kevin T.; Deboer,   Larry.
A model for observing public service delivery choice in the presence of economic expansion is presented. Regression techniques were used to estimate the share of county population served by volunteer fire protection from variables measuring community demands for and relative costs of fire protection services.
Tipo: Conference Paper or Presentation
Palavras-chave: Firefighters; Volunteer organizations; Taxes; Municipal service demands; Local spending; Population growth; Median voter; Public Economics.
Ano: 2001
URL: http://purl.umn.edu/20705

Food Security Assessment: Why Countries Are at Risk
Provedor de dados: 31
Autores: Shapouri,   Shahla; Rosen,   Stacey L.
Food insecurity in many low-income, developing countries is projected to intensify unless steps are taken to reverse the performance trend of key contributing factors: agricultural productivity, foreign exchange earnings, and population growth. For the poorest countries, an increase in agricultural productivity is the key to improving food security. In these countries, imports play a small role in the domestic food supply because of limited foreign exchange availability. This study evaluates availability and distribution of food and analyzes their trends through 2008 by projecting food gaps to maintain per capita consumption, meet nutritional needs, and fulfill requirements stemming from unequal food distribution.
Tipo: Report
Palavras-chave: Food security; Developing countries; Productivity; Foreign exchange availability; Import capacity; Income distribution; Population growth; Nutritional requirements; Per capita consumption; Food Security and Poverty.
Ano: 1999
URL: http://purl.umn.edu/33614

Rural America At A Glance, 2008 Edition
Provedor de dados: 31
Autores: Kusmin,   Lorin D.
Rural America At A Glance, 2008 Edition highlights the most recent indicators of social and economic conditions in rural areas for use in developing policies and programs to assist rural areas. The 2008 edition focuses on employment, poverty, population change, and demographic characteristics of nonmetro areas.
Tipo: Report
Palavras-chave: Rural indicators; Population; Employment; Rural unemployment; Nonmetropolitan; Nonmetro; Rural economy; Metro; Rural America; Census data; Population growth; Employment; Unemployment; Poverty; Demographics; ERS; USDA; Agricultural and Food Policy; Community/Rural/Urban Development.
Ano: 2008
URL: http://purl.umn.edu/59019

Water for rural development:  Background paper on water for rural development prepared for the World Bank
Provedor de dados: 31
Autores: Molden,   David J.; Amarasinghe,   Upali A.; Hussain,   Intizar.
Tipo: Working or Discussion Paper
Palavras-chave: Water management; Irrigation management; Rural development; Water resources development; Small scale systems; Land management; Groundwater; Environment; Health; Water policy; Institutions; Food consumption; Water supply; Water demand; Water allocation; Crop yield; Cereals; Water scarcity; Food production; Food security; Crop production; Population growth; Crop Production/Industries; Environmental Economics and Policy; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Health Economics and Policy; Institutional and Behavioral Economics; Resource /Energy Economics and Policy.
Ano: 2001
URL: http://purl.umn.edu/92777

Nonmetropolitan Outmigration Counties:  Some Are Poor, Many Are Prosperous
Provedor de dados: 31
Autores: McGranahan,   David A.; Cromartie,   John; Wojan,   Timothy R.
Population loss through net outmigration is endemic to many rural areas. Over a third of nonmetro counties lost at least 10 percent of their population through net outmigration over 1988-2008. Some of these counties have had very high poverty rates, substantial loss in manufacturing jobs, and high unemployment. Lack of economic opportunity was likely a major factor in their high outmigration. Most high net outmigration counties, however, are relatively prosperous, with low unemployment rates, low high school dropout rates, and average household incomes. For these counties, low population density and less appealing landscapes distinguish them from other nonmetro counties. Both types of outmigration counties stand out on two measures, indicating that...
Tipo: Report
Palavras-chave: Migration; Net migration; Rural development; Life-cycle migration; Population growth; Nonmetropolitan; Nonmetro; Rural economy; Metro; Rural America; Census data; Population growth; Demographics; ERS; USDA; Community/Rural/Urban Development.
Ano: 2010
URL: http://purl.umn.edu/96769

Rural America At A Glance, 2009 Edition
Provedor de dados: 31
Autores: Kusmin,   Lorin D.
Update of an annual series, the 2009 edition of Rural America At A Glance deals with effects of the major recession on rural America. Initially, effects of the recession were mitigated in nonmetro areas by high commodity prices throughout much of 2008, but as the recession deepened, prices fell. Both nonmetro and metro areas experienced rising unemployment as manufacturing and other major employment sectors contracted, and they were similarly affected by the mortgage foreclosure crisis. However, even before the current recession, nonmetro poverty rates had risen in the growth years after the 2001 recession, against the usual trend during a time of economic expansion; the nonmetro poverty rate has exceeded the national poverty rate since 2001. The nonmetro...
Tipo: Report
Palavras-chave: Rural indicators; Population; Housing markets; Employment; Rural unemployment; Nonmetropolitan; Nonmetro; Rural economy; Metro; Rural America; Census data; Population growth; Unemployment; Poverty; Demographics; ERS; USDA; Agricultural and Food Policy.
Ano: 2009
URL: http://purl.umn.edu/59017

The Farmers' Plea to Environmentalists
Provedor de dados: 31
Autores: Avery,   Dennis T.
This paper critically examines linkages between alternative farming practices and environmental quality. Environmental impacts of high-yield farming are contrasted to those of low-yield farming. Traditional low-yield farming systems, while being promoted by environmental groups, have resulted in massive famine, higher cancer rates, soil erosion, and losses in wildlife habitat. Organic farming and other low-yield systems are land intensive and invade marginal farmland, thereby destroying wildlife habitat and biodiversity. Low-yield farming has not and cannot produce enough food to meet the food needs of the world’s population. By contrast, high-yield farming minimizes land use for food production and increase the availability of land for wildlife habitat...
Tipo: Journal Article
Palavras-chave: High-yield farming; Environmental quality; Wildlife habitat; Biodiversity; Population growth; Hunger; Free trade; Agricultural and Food Policy; Food Security and Poverty.
Ano: 1996
URL: http://purl.umn.edu/90375

UK parliamentary inquiry into global food crisis: call for evidence: How to better manage water so that 9 billion people can be fed equitably, healthily, safely and sustainably by 2050
Provedor de dados: 31
Autores: Chartres,   Colin J.
Invited submission from the International Water Management Institute (IWMI) to the United Kingdom Parliament on 2 June 2009.
Tipo: Report
Palavras-chave: Research institutes; Agricultural research; Policy; Water resource management; Irrigated farming; Rainfed farming; Farming systems; Food security; Water productivity; Water scarcity; Population growth; Water reuse; Food production; Water use; Biofuels; Urbanization; Climate change; Agricultural and Food Policy; Agricultural Finance; Community/Rural/Urban Development; Consumer/Household Economics; Crop Production/Industries; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Political Economy; Production Economics; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy.
Ano: 2009
URL: http://purl.umn.edu/91800

Spatial variation in water supply and demand across river basins of India
Provedor de dados: 31
Autores: Amarasinghe,   Upali A.; Sharma,   Bharat R.; Aloysius,   Noel; Scott,   Christopher A.; Smakhtin,   Vladimir U.; de Fraiture,   Charlotte.
India is a large country with regional differences in per-capita water supply and demand. Attempts to describe the water situation in India at a national level are often misleading due to the tremendous diversity in the water situation across the country. This Report analyzes the spatial variation of water supply and demand across river basins in India. The study identifies basins that are water-scarce because of inadequate water availability to meet the effective demand. It also identifies issues that are important for estimating the future water demand and for the formation of policy for future water-resources development and management.
Tipo: Report
Palavras-chave: Water supply; Water demand; River basins; Catchment areas; Water availability; Water scarcity; Estimation; Irrigation water; Domestic water; Population growth; Urbanization; Groundwater extraction; Crop production; Policy; Water transfer; India; Agricultural and Food Policy; Community/Rural/Urban Development; Consumer/Household Economics; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Food Consumption/Nutrition/Food Safety; Production Economics.
Ano: 2004
URL: http://purl.umn.edu/52966

India’s water future to 2025-2050: business-as-usual scenario and deviations
Provedor de dados: 31
Autores: Amarasinghe,   Upali A.; Shah,   Tushaar; Turral,   Hugh; Anand,   B.K.
With a rapidly expanding economy many changes are taking place in India today. The business-as-usual (BAU) scenario, which assumes the continuation of current trends of key water demand drivers, will meet the future food demand. However, it leads to a severe regional water crisis by 2050, where many river basins will reach closure, will be physically water-scarce and will have regions with severely overexploited groundwater resources. While the alternative scenarios of water demand show both optimistic and pessimistic water futures, the scenario with additional productivity growth is the most optimistic, with significant scope for reducing future water demand.
Tipo: Report
Palavras-chave: Water demand; Water supply; Population growth; Crop production; Crop yield; Groundwater; Irrigation; Food security; Crop Production/Industries; Food Security and Poverty; Resource /Energy Economics and Policy.
Ano: 2007
URL: http://purl.umn.edu/44522

Does Broadband Access Impact Population Growth in Rural America?
Provedor de dados: 31
Autores: Mahasuweerachai,   Phumsith; Whitacre,   Brian E.; Shideler,   David W.
Tipo: Conference Paper or Presentation
Palavras-chave: Population growth; Broadband; Spatial econometric; Average treatment effects; Community/Rural/Urban Development.
Ano: 2009
URL: http://purl.umn.edu/49303

Rural America At A Glance, 2007 Edition
Provedor de dados: 31
Autores: Kusmin,   Lorin D.
Rural America At A Glance, 2007 highlights the most recent indicators of social and economic conditions in rural areas for use in developing policies and programs to assist rural areas. The brochure provides information on key rural conditions and trends for use by public and private decisionmakers and others involved in efforts to enhance the economic opportunities and quality of life for rural people and their communities.
Tipo: Report
Palavras-chave: Rural indicators; Population growth; Employment; Rural unemployment; Rural economy; Nonmetro; Metro; Creative occupations; Rural America; Natural amenities; Census data; Educational attainment; College education; Poverty; Domestic migration; ERS; USDA; Agricultural and Food Policy; Community/Rural/Urban Development.
Ano: 2007
URL: http://purl.umn.edu/59020

RESULTS OF THE RURAL CASS COUNTY BUSINESS AND SERVICES PREFERENCE SURVEY
Provedor de dados: 31
Autores: Hodur,   Nancy M.; Coon,   Randal C.; Leistritz,   F. Larry.
Changing demographics in rural and urban North Dakota have provided both opportunities and challenges for rural communities.  Cass County boasts the state's largest and fastest growing urban center, but the impact of the county's growth extends beyond the Fargo-West Fargo city limits.  Towns like Casselton, Horace, and Kindred have experienced substantial changes not only in the number of residents, but also in the composition of households and their business and service needs and preferences.  To address these questions, the Rural Cass County Business and Services Preference Survey was designed to identify and quantify residents' perceptions on a variety of issues.  This report details respondents' perceptions on quality of life issues, business and...
Tipo: Working or Discussion Paper
Palavras-chave: Rural development; Rural Cass County; Population growth; Community/Rural/Urban Development.
Ano: 2003
URL: http://purl.umn.edu/23595

The Case of Smallholder Dairying in Eastern Africa
Provedor de dados: 31
Autores: Ngigi,   Margaret.
Agriculture plays a crucial role in the economy of sub-Saharan Africa. A feature of particular significance about the region is that the majority of households are heavily dependent on agriculture as their major source of livelihood. Smallholder agriculture is the principal producer of staple foods and cash crops, accounting for very large shares of national production and marketed output. For the respective countries, therefore, the performance of smallholder agriculture has crucial implications for the overall economic development process including the alleviation of rural poverty. The demands created by steadily increasing populations, and the pressing need to increase agricultural productivity means that these countries must continuously adopt methods...
Tipo: Working or Discussion Paper
Palavras-chave: Dairying; East Africa; Uganda; Kenya; Livestock; Smallholders; Poverty alleviation; Population growth; Agricultural productivity; Small farmers; Rural poor; Livestock Production/Industries; Q1; Q15.
Ano: 2005
URL: http://purl.umn.edu/59246

DEVELOPMENT AT THE URBAN FRINGE AND BEYOND:  IMPACTS ON AGRICULTURE AND RURAL LAND
Provedor de dados: 31
Autores: Heimlich,   Ralph E.; Anderson,   William D.
Land development in the United States is following two routes: expansion of urban areas and large-lot development (greater than 1 acre per house) in rural areas. Urban expansion claimed more than 1 million acres per year between 1960 and 1990, yet is not seen as a threat to most farming, although it may reduce production of some high-value or specialty crops. The consequences of continued large–lot development may be less sanguine, since it consumes much more land per unit of housing than the typical suburb. Controlling growth and planning for it are the domains of State and local governments. The Federal Government may be able to help them in such areas as building capacity to plan and control growth, providing financial incentives for channeling growth...
Tipo: Report
Palavras-chave: Land development; Sprawl; Large-lot housing; Land zoning; Population growth; Housing; Specialty agriculture; High-value agriculture; Rural amenities; Smart growth; Land Economics/Use.
Ano: 2001
URL: http://purl.umn.edu/33943

Reproduction and survival of Muscina stabulans under laboratory conditions
Provedor de dados: 65
Autores: Krüger,Rodrigo Ferreira; Ribeiro,Paulo Bretanha; Erthal,Simone Giehl; DeSouza,Og.
This is the first published report concerning reproduction and survival using life table analyses of fertility and survival for Muscina stabulans maintained under laboratory conditions with artificial diets. The intrinsic rate of growth, reproduction rate and average generational time were obtained, suggesting a rapid population growth under these rearing conditions. These findings permitted the creation of time models of survival and oviposition, as well as a quantitative estimate of the adaptation capacity of this species.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Life table; Survival analysis; Population growth.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782010000300030