New England Forests
When the pilgrims arrived in 1620, they cut down most of the forests in the New England area in order to clear land for farming and to build houses. However, from 1850 to 1950, many people abandoned farms in favor of jobs in the textile industry. Others moved away because the land in the Midwest was cheaper. In any case, once these farmers left, the forest ecosystem began to recover. Seeds were carried to the abandoned fields by animals and the wind. Over time, the fields had many plant species thriving. The goldenrod group began to dominate the fields by growing taller, thus outcompeting other plants for the sun. This drew outbreaks of the leaf beetle, that specialized in eating goldenrods. The goldenrod population fell, …show more content…
They poisoned the prairie dogs and destroyed their natural habitats to make more room for farming, causing the decline of not only the prairie dog population, but also the black-footed ferret because the ferrets depend on the prairie dogs as a source of food. The carrying capacity for ferrets decreased. In 1981, a small population of ferrets were discovered in Wyoming, so scientists quickly took action to begin conservation. Not soon after, a wave of disease reduced the population of ferrets even more. Scientists bred the ferrets until there were enough to release back into the wild. They chose many different areas with a low risk of extermination instead of releasing them all in one place because another round of disease could very well kill off the population for good. The risk was too high. The rescue effort is successful so far with 1000 ferrets in the wild, but not over. Scientists are currently working on ways to combat plague - vaccines, powder to kill fleas that carry disease, etc. If the wild population exceeds 1500 ferrets, the ferrets can be moved from the endangered species list to the “threatened” species …show more content…
It has had a lot of economic development in recent times, causing its consumption and pollution levels to go up as people have the means to buy more. Coupled with the growing population, consumption and pollution levels in China are higher than that of any other country. As greater numbers of people purchase, more materials need to go into the production of these appliances, and more electricity, oil, and raw metals are demanded. The use of the appliances, the mining of raw materials, and the production of the appliances all contribute to carbon dioxide emission, and air and water pollution. China is now implementing higher fuel efficiency standards, and is investing in renewable energy. It has tried to limit its population through implementation of the one child policy, abortions, sterilizations, and deeming certain pregnancies illegal. These measures have significantly decreased population growth; the population may even decline by
When the pilgrims arrived in 1620, they cut down most of the forests in the New England area in order to clear land for farming and to build houses. However, from 1850 to 1950, many people abandoned farms in favor of jobs in the textile industry. Others moved away because the land in the Midwest was cheaper. In any case, once these farmers left, the forest ecosystem began to recover. Seeds were carried to the abandoned fields by animals and the wind. Over time, the fields had many plant species thriving. The goldenrod group began to dominate the fields by growing taller, thus outcompeting other plants for the sun. This drew outbreaks of the leaf beetle, that specialized in eating goldenrods. The goldenrod population fell, …show more content…
They poisoned the prairie dogs and destroyed their natural habitats to make more room for farming, causing the decline of not only the prairie dog population, but also the black-footed ferret because the ferrets depend on the prairie dogs as a source of food. The carrying capacity for ferrets decreased. In 1981, a small population of ferrets were discovered in Wyoming, so scientists quickly took action to begin conservation. Not soon after, a wave of disease reduced the population of ferrets even more. Scientists bred the ferrets until there were enough to release back into the wild. They chose many different areas with a low risk of extermination instead of releasing them all in one place because another round of disease could very well kill off the population for good. The risk was too high. The rescue effort is successful so far with 1000 ferrets in the wild, but not over. Scientists are currently working on ways to combat plague - vaccines, powder to kill fleas that carry disease, etc. If the wild population exceeds 1500 ferrets, the ferrets can be moved from the endangered species list to the “threatened” species …show more content…
It has had a lot of economic development in recent times, causing its consumption and pollution levels to go up as people have the means to buy more. Coupled with the growing population, consumption and pollution levels in China are higher than that of any other country. As greater numbers of people purchase, more materials need to go into the production of these appliances, and more electricity, oil, and raw metals are demanded. The use of the appliances, the mining of raw materials, and the production of the appliances all contribute to carbon dioxide emission, and air and water pollution. China is now implementing higher fuel efficiency standards, and is investing in renewable energy. It has tried to limit its population through implementation of the one child policy, abortions, sterilizations, and deeming certain pregnancies illegal. These measures have significantly decreased population growth; the population may even decline by