How was the American student population distributed across geographic areas and how has this changed over time? The implications for the educational system would be crucial. The size of the school...doi:10.1007/978-3-319-89423-2_2Verdugo, Richard R....
摘要: Data from the 1980 population census of South Africa are presented on the spatial distribution of the population. The data are presented separately for major ethnic groups. A summary of changes since 1951 is also included. (ANNOTATION)...
Climate change may affect natural ecosystems in a variety of ways. In the short term, climate change can alter the mix of plant species in land ecosystems such as grasslands. In the long term, climate change has the potential to dramatically alter the geographic distribution of major vegetation...
Alien plant species can considerably threaten biodiversity and stability of ecosystems; change their structure, function, and biogeographic distribution; and eventually cause environmental degradation and substantial socioeconomic damage1,2,3,4,5,6. Increases in urbanization and the human population are oft...
This paper takes an initial step in that direction by focusing upon the geographic distribution of elderly minority populations in the United States. The study is carried out at several spatial scales, and it is concluded that elderly minority populations tend to be even more segregated than their...
To evaluate the geographic concentration of adult obesity prevalence by census tract (CT) in King County, WA, in relation to social and economic factors. Measured heights and weights from 59 767 adult men and women enrolled in the Group Health (GH) health care system were used to estimate ob...
especially in Poaceae and Cyperaceae.However,the number of C 4 species in Chenopodiaceae decreases with increase of atmospheric temperature and humidity.The results of the survey show a wide geographic distribution of C 4 plants and demonstrated the distribution of some C 4 species in arid and ...
economic geography- the branch of geography concerned with the production and distribution of commodities Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc. Want to thank TFD for its existence?Tell a friend about us, add a link to this page, or ...
The article addresses the naming practice and population origin of the parish of Desne-Rujnica, covering the territory of Mount Rujnica on the right bank o... Šunjić, Maja 被引量: 0发表: 2018年 加载更多来源期刊 Human Biology 19910401 研究点推荐 Cultural factor geographic distribution ...
A Elizabeth 被引量: 0发表: 2014年 Estimates of birth prevalence rates of spina bifida in the United States from computer-generated maps A computer-generated mapping procedure was developed to estimate geographic and race-specific birth prevalence rates of open spine bifida. The estimates are based...