The growth of a population over time can sometimes be approximated by which graph? A. A straight line. B. A parabola opening downwards. C. A curve that starts slowly and then grows rapidly. D. A wavy line. 相关知识点: 试题来源: 解析 C。解析:人口增长通常开始缓慢然后迅速增长,图像是一...
Countries with the highest fertility levels tend to be those with the lowest income per capita. Global population growth has therefore over time become increasingly concentrated among the world's poorest countries, most of which are in sub-Saharan Africa, read the release. Even though population gr...
Many populations, over time, exhibit periods of growth and decline. Cyclic changes in population growth can be caused by seasonal, or other environmental changes, or can be driven by density-dependent processes, such as predation, like the snowshoe hare and lynx example depicted here. ...
必应词典为您提供Population-growth的释义,un. 人口增长;种群增长; 网络释义: 人口成长;族群成长;族群增长;
the population will remain the same over time. Figure 1 illustrates a density plot of a population that changes based on this equation. It shows a population that grows rapidly, with growth slowing as resources become limited, until the population stabilizes at K. The equation shown pro...
POPULATION GROWTH IN SPACE AND TIME: SPATIAL LOGISTIC EQUATIONS. How great an effect does self-generated spatial structure have on logistic population growth? Results are described from an individual-based model (IBM) wi... Law,Richard,Murrell,... - 《Ecology》 被引量: 343发表: 2003年 ...
This article summarizes the recent literature on population momentum, usually defined as the subsequent population growth or decline after replacement conditions have been achieved. We review total momentum, its constituent parts (nonstable and stable momentum), trends over time, and how momentum is af...
For example, McKenzie County in North Dakota, with a 2020 population of just15,242, was the fastest-growing U.S. county over the past decade. The county’s138%increase was driven primarily by theBakken oil boomin the area. High-growth counties in Texas also grew as new sources of energ...
aThere is controversy over whether population growth is good or bad. Over-population and continuing population growth are making substantial contributions to the destruction of Earth's life support systems. 有争论在人口增长是否是好或坏的。 人口过剩和继续的人口增长做对地球的生命维持系统的破坏的坚固贡...
LTRE analyses are used to explore changes in population growth rate λ over time or space resulting from experimental manipulations, changes in environmental conditions (e.g., artificial exposure to pollutants, food provisioning, or manipulation of predator densities)97, or alternative assumptions about...