What Happened to all the Palm Trees on Easter IslandSo what happened to all the palm trees on Easter Island?
The Easter Island (also called Rapa Nui) is a small island in the midst of a very large sea. It covers only 166 km^2 (64 mi^2) and is 2250 km from the next island (Pitcairn Island) and over 3700 km from South America, the next mainland.
There is no doubt that you have been told something about this intriguing island, which is connected with speculation about what brought the people down. Indeed, you have probably learned more about this island because it is not quite as unsustainable as the countless other South Pacific isles. In an era in the island's past, the company had a rather refined cultural and technological background.
Proof of the technique was its capacity to move the large rock sculptures for which the island is best known over long stretches. Archipelago people civilized a large part of the island with several cultures. Estimates of the island's minimum number of inhabitants are 7,000 and up to 20,000.
Yet the populace and civilisation must have collapsed. The first time Europe's vessels registered their interactions with the island (around 1700), there were only a few thousand, but these humans lived in a very dismal area. From the very outline of this island you can see why its fascinating past and that.
It is a small island in the middle Pacific and our own in the middle Milky Way. When the world began to disintegrate and the people and the community collapsed, these island inhabitants had no place left. This case studies will investigate the populations, farming and farming and farming practice used on Easter Island from around 400 AD to around 1700 AD.
We' ll analyse the very slow exhaustion of the Easter Island's physical assets using a'systems' system. Easter Island's history has special characteristics, which they make accessible for investigation with a system beginning. Firstly, it is very similar to the system modell for sustainable development; there are proposals for economic development, harvesting, bad fortune.
Secondly, the process seems to be in equilibrium at all times; only if we look at the long-term effects of these process, do we see the effects of a light over-harvest or an accident last year. Third ly, the descriptive has some basic patterns that could be linked together to get a better image; there is demographic increase, harvesting of trees, ground humidity, farming and fisheries.
Some of the populations we will consider are: the number of humans, palm trees and cats. There is a equilibrium between fertility and mortality rate. There will be more babies as there are more persons, i.e. there will be a higher rate of cadavers. Number of trees is also a equilibrium between the number of palm kernels that sprout and thrive and the number of trees that fell.
And the third line in our cast will be the mice. Rdents were taken to the island by humans. Those mammals have a pivotal part in this issue. Humans feed the mice and the mice feed on the palm fruits, which reduces the number of trees. They are just like the others; good feedbacks for the birth of a rata and various kill control factor.
Rat has a beneficial effect on childbirth. Humans' fertility rates rise with more mice ( "rats" and the fertility rates fall when mice are low). Rat has a detrimental effect on mortality. Mortality rates rise when there are too few mice. Humans have a beneficial effect on tree harvest.
More trees are being felled because they are needed for harvesting fish and cultivating farmland. Rat has a detrimental effect on the germinating rates of palm fruits. When new palm seed germinates successfully, the proportion is reduced by the number of rat as the rat chews on the seed.
Palms have a beneficial effect on the birth of a rata, as the palm fruits are eaten by the rivals. You can see in the graph below that there is a lot of good feedback and little wasted. After the historic note of how the humankind was growing, humans are cutting more and more trees.
These trees were needed to build fishery vessels, and they needed more and more ground for growing them. They would have had a hard time reaping trees alone, but this was made worse by eating a rat, and the rat had to rely on the trees to feed itself.
They felled enough trees as the populations grew and ran out of trees to catch them. At the same time, they could not only not catch enough trees to catch them, but their other sources of nutrition, the mice sank. A further theoretical circumstance is that the system achieves a balanced state.