Sunday, March 22, 2020
Research Proposal on Endangered Species Essay Example
Research Proposal on Endangered Species Essay Recent era of high technologies and developing industries led our society to the new stage of evolution. However, besides obvious advantages for civilization, the twentieth century brought certain problems in life of our planet. Nature began suffering soundly from products of human civilization. There is a great number of factors that influence decrease of population of various species (McGavin 13). One of the endangered species is Cuban Solenodon, very rare animal. There exist only two species of Solenodons ââ¬â Solenodon cubanus and Solenodon paradoxous. Cuban Solenodon (scientific name ââ¬â Solenodon cubanus) belongs to the family of Solenodontidae, Soricomorpha order, Mammalia class of Chordata phylum. This rare species was uncovered by Wilhalm Peters in 1861. These small (around 50 cm long) shrew-like animals live mostly in Cuban Oriente Province. Since its discovery, Cuban Solenodon was mainly found in this area, being Cuban endemic. Historical investigation has showed that species of Solenodon, the ancestors of modern Cuban Solenodon, were rather distributed animals around thirty million years ago (MacDonald 49). They lived in the area of moders North America. However, the size of population was not estimated. We will write a custom essay sample on Research Proposal on Endangered Species specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Research Proposal on Endangered Species specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Research Proposal on Endangered Species specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Therefore, the spieces is not young, having long history of development. Unfortunately current population size of this animal is very small. There were found only several decades of animals in the end of nineteenth century. In the period from 1890 to 1970 (Massicot) no animals were cought. After that, few specimen were caught in 1970-es and in 1999. Total number of representatives of Cuban Solenodon found since its discovery equaled 36 animals. However, only several years ago, in 2003, 37-th specimen was caught. Still there are no accurate data on current population of this animal. Solenodons live in a wild nature and are protected by law. Hence, solenodons are not kept in Zoo parks as the animal is difficult to keep in captivity and is considered a threatened species. Although Cuban Solenodon is classified as endangered species, many biologists think that the small population size of this animal is conditionad by its lifestyle. Indeed, Solenodon cubanus is a nocturanl animal, mostly being active at night while sleeping at daytime (Answers.com). Besides, solenodons live in burrows. These facts are considered by some scientists to be reasons for rarity of this animal, as it is rather difficult to find solenodon in wild nature. Moreover, reproduction of Cuban Solenodon is very low. These animals produce maximum one litter per six months, having mostly one offspring (sometimes two) per litter. Therefore, there exist natural factors conditioning small population and rarity of Cuban Solenodon. However, there are many other facts that affected the small population size of this species. There is very little known about natural events that caused small population of Solenodon Cubanus. Still, some factors and processes in twentieth century indeed affected its distribution. One of the reasons is considered the slash of tropical forest for agricultural needs. As long as solenodons live in wet forests, it was very dangerous for their population. Besides, the introduction of some animals (mongoose, dogs, and cats) caused decline of Cuban Solenodon population (Theusch). Being historically very unfamiliar with predators, solenodons can not fight with these animals and defend themselves. Therefore, the decrease of population size of Solenodon Cubanus depends totally on various kinds of human activity. Cuban Solenodon was for the first time classified endangered species in 1970. Current status of this animal is also endangered, being in the Red List of Threatened Species. This species is protected by law and federal regulations of many countries, including the United States of America and Cuba. Unfortunately, the status of this rare animal and its protection does not make its population grow. On my view, very little can be done now for saving this species from going extinct besides decreasing our activity on deforestation. I believe that people will recognize the volume of enormous harm they cause to the wild nature. And I sincerely hope that once we can see this little animal in a wild forest of Eastern Cuba with our own eyes.
Thursday, March 5, 2020
Rise of the modern presidncy form T. roosevelt to fdr essays
Rise of the modern presidncy form T. roosevelt to fdr essays The modern presidency began to rise in about 1900 with Theodore Roosevelt. He began a theme of the 20th century of more federal power within the government and more power of the president in particular. Theodore Roosevelt was president from 1901-1909. Both government and presidency increased during his term. You can see this by the way he regulated big business. He appealed directly to the nation, increasing presidential power, since progressivism had support of America. Roosevelt had engagement in world affairs on his mind and tried to create a more stable world. The panama canal was built while he was in office. He thought it was the responsibility of a civilized nation to help stabilize others. Taft took over for the next four years and somewhat decreased both presidential strength and federal power. There was less land regulation and he chose to have much less control of congress than he could have. It was his personal opinion that it crossed over the checks and balances system of our government. Taft stepped back from foreign affairs also with much less engagement. Woodrow Wilson was in office for two terms, from 1913-1921. Americas support for progressivism allows Wilson to act as leader of government and nation increasing the role of the president. He also increased the federal governments power by putting into effect the federal reserve system. He wanted to stay out of war at first and was even using lines for his reelection with peacekeeping intentions. This comes from the strong American public opinion to stay out of the war and world affairs. He did although end up going to war and failed as a leader when he couldnt get the allied nations support. He did create the league of nations. Harding and Coolidge both decrease the effects of government and the presidency but it does not go back to zero. They serve from 1921-1929 and take a much more isolationalist approach to foreign affairs because it was now the...
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