(1) Mayan Collapse: The Impact of Human Activities, Population Crashes, the Impa
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Question
(1) Mayan Collapse:
The Impact of Human Activities, Population Crashes, the Impact on the Biosphere
Consider all of these bullets that came out of the lectures in module 6, Ecology, and especially the material in module 6 part 6, module 6 part 7 as well as the 46 minute video:
• Factors such as food, disease, changes in temperature or water can all affect the population size.
• Factors in the environment can limit this exponential growth (environmental resistance). Then the population size would remain in a steady state.
• When the population levels off into a steady state this becomes the carrying capacity of the environment related to a particular population.
• Our industrial society lives on borrowed carrying capacity.
• Consider the changes in reindeer population on an island in Alaska.
• The population grew to 2000 and then declined in 1950 to 8 animals.
• This is described as a population crash.
• If something is not done quickly, population growth may explode in the LDCs from 4.4 billion to 10.2 billion or even 14.2 billion by the year 2100.
(2) Do the same thing for another human population from Africa, or the Mid-East (your choice) that also experienced such a population crash.
(3) Then, with this in mind compare what happened historically with the exponential growth in the modern LDCs in the world today?
(4) Given all that you know why has there SO FAR not been a serious population crash in these countries and what do you think that the future holds for them and for all of the world civilization, assuming that NOTHING is done to combat their exponential population growth rates.
(5) Finally if you had the ability to make changes in the way things work in the world what would you do to attempt to combat, or at least minimize, potential future population crashes
Explanation / Answer
1. Mayan collapse refers to the classic maya civilization decline between the 8th and 9th century.There is also abandonment of maya cities in the southern lowland of mesoamerica .The reason behind this collapse is a mystery but there were some researchers theory,like the foreign invasion etc.
2.Yes,there is similar fertility decline in Africa in the 21th century .It results in the substantial population growth and the population is adversely affected.
3.Exponential growth in the least developed country ,leads to the population crash .As there is limitations of resources and increasing population pressurize the resource and there is severe competition which results in population decline or collapse.
4.LDCs country whose population grows at a faster rate , results in population crash .If we are not control our population ,then it may be a dangerous impact on world civilization .So it is our duty to control population at own level rather than any other government policies.
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