population change
4.According to analysis, the key phase of the population change is the 3rd-4th instar larvae and the 1st-2nd instar larvae take second place. The key factor caus-ing the population change is food nutrition factor.
5.The authers extracted the data of giant panda ( Ailuropoda melanoleuca ) population and the related factors that influence the population from Foping Reserve and published literature, then predicted the population dynamics in 100 years, analysized the probable long-term survival state, and examined the sensibility of the population size under the change of environment, migration rate, carrying capacity and catastrophes with the help of VORTEX model.
6.The evidence indicates that this model describes the economic growth in China very well, if holding population growth, capital accumulation and institutional change factor constant, Chinese provinces converge at about the rate that the augmented Solow model predicts.
7.By analysis of nationwide data of population, the article explored a series of aging indices such as the coefficient of aged population, the number of centenarians and its change in proportion, the level of longevity, of life and the expectation of life at the age of zero etc.
10.It is generally thought that habitat fragmentation will lead plant population to experience an erosion of genetic variation, reduction of genetic diversity and change of genetic structure, and make plant population more divergent due to random genetic drift, high level of inbreeding and reduced gene flow.
