But this pattern means that the share of the global population aged 65 years or above is projected to rise from 10% this year to 16% in 2050. Again the distribution will be unequal with some countries, in East Asia an...
A growing world population and the discoveries of science may alter this pattern of distribution in the future.①(As men slowly learn to master diseases, control floods, prevent famines, and stop wars,fewer people die every year;and in consequence the population of the world is steadily increasi...
Population agglomeration of major city clusters has increased, with the population of the Guangdong-Hong Kong-Macao Greater Bay Area, the Yangtze River Delta and the Chengdu-Chongqing cluster growing rapidly by 35.0%, 12.0% and 7.3% respectively. Shanghai, Beijing, Guangdong and Zhejiang all h...
However, regarding their microscale distribution, the pen shells in our surveys were recorded also outside the seagrass meadows boundaries, at times up to 1 km away. Hence, seagrass sheltering can potentially be ruled out as the sole explanatory factor for the distribution pattern of the species...
Demography is the statistical study of human populations. It encompasses the study of the size, structure, and distribution of these populations, and spatial and/or temporal changes in them in response to birth, migration, aging, and death. Population change depends on the rate of natural increas...
2006 . Population structure and distribution pattern of Taxus cuspidata in Muling region of Heilongjiang Province, China. Journal of Forestry Research,17 (1) : 80 - 82.Yuan-gang Zu,Hua-feng Chen,Wen-jie Wang,Shao-quan Nie. Population structure and distribution pattern of Taxus cuspidata ...
Arbuscular mycorrhizal fungi (AMF; phylum Gomeromycota) associate with plants forming one of the most successful microbe–plant associations. The fungi promote plant diversity and have a potentially important role in global agriculture. Plant growth depe
To study fractal character which might exist in the distribution of insect, two new variables, scale and direction,were introduced to characterize spatial distribution pattern of the over wintering larvae of Chilo supressalis and its simulated sampling. The results indicate that: 1) The population ...
This is in turn influenced by recombination, gene flow and dispersal, which leave their characteristic signatures in the genome. Evidence for these expectations comes from a recent global study from our laboratory demonstrating the non-random distribution of azole resistance in multilocus microsatellite ...
structure.Within all the three sites in Longwangshan,the populations were generally of contagious distribution type,and this could be closely correlated to the growing habitats and reproductive mode of P.subaequalis.Additionally,some suggestions concerning ecological protection of this species were put ...