Over generational time, selection can create populations that have adapted to succeed in specific environments Population bottleneck An event in which a population's size is severely reduced, e.g., by a natural disaster like volcanic eruption or disease like the Black Plague.
"The depletion, deterioration and exhaustion of resources and the worsening ecological environment have become bottlenecks and grave impediments to the nation's economic and social development".
"The depletion, deterioration and exhaustion of resources and the worsening ecological environment have become bottlenecks and grave impediments to the nation's economic and social development," wrote China's environment minister late last month.
Frankly, the general view in the government has been that the environment is a bottleneck.
The accuracy and poor real-time performance of moving objects in a dynamic range complex environment become the bottleneck problem of the target location and tracking.
In a communication environment, the major bottleneck to supporting fast data access in Grids is the high latencies of Wide Area Networks (WANs) and Internet.
However, the limited survival and engraftment of transplanted cells due to a hostile ischemic environment is a bottleneck for effective utilization and commercialization.
This strengthens the idea that the structure of the cristae plays an important role in oxidative phosphorylation, including the possibility that it creates local environments separated by bottlenecks of restricted diffusion [33] [35].
The authors also argue that the observed lower genetic diversity, which correlates with smaller effective population sizes, likely arose as a consequence of limited food and space in the subterranean environment and/or periodic bottleneck events [ 8, 23].
"The depletion, deterioration and exhaustion of resources and the deterioration of the environment have become serious bottlenecks constraining economic and social development".
