3 results for 'population'
... for any two species you care to observe, there has to be something different about their needs for both to share the same habitat.
Another principle involves the grow of species in the absence of controlling factors (i.e. predation, lack of food, breeding habitat). When not controlled, population numbers will climb at an exponential rate (x2) until it reaches the carrying capacity of the environment, after which there will be a precipitous falloff due to all resources being consumed or disease infecting the population, or both.
In a healthy ecological system, factors such as... (more)
...exception. But here, too, massive intervention, vis-à-vis the Boer War and eventual settlement of Europeans, accompanied by an equally massive application of repression and cultural genocide, had much to do with their successes. Yet it was the inevitable dearth of new ideas by the white population of that country that allowed the emergence of new ideas from the repressed majority, brought an end to apartheid, and allowed for the beginnings of a new set of agreements to be considered. It remains to be seen (and the visibility ahead is at the moment somewhat murky) how these agreements... (more)
World population is to hit seven billion any moment, says the UN. The prospect of a crowded planet putting further pressure on the earth’s thinly stretched resources raises a question. Should we celebrate or fret about the seven billion mark? According to the UN Population Fund, let’s do a bit of both. Population increase brings with it environment, livelihood and life quality concerns, and their attendant policy challenges. On the positive side, people in many parts of the globe are living longer, healthier lives. Average life expectancy has increased from about 48 years to about 68. Couples... (more)
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