Wednesday, February 19, 2020

The Mountain Pine Beetle Infestation in Robson Provincial Park Research Paper

The Mountain Pine Beetle Infestation in Robson Provincial Park - Research Paper Example Beetle infestation is in abundance in low height lodgepole pine forests of the SBS bio-geo-climatic zone. The issue of pine beetle infestation is interrelated with seral-stage distribution and fire risks, which have been discussed while recommending management policy on Robson Park’s mountain pine beetle infestation. Treatment options have been suggested for single tree fall and burn, prescribed burning and selective tree removal, considering the overall ecosystem and environment at the heart of every decision to be taken and reviewed, and if needed, changed annually for the policy management of Robson Park mountain pine beetle infestation spanning a period of 10 years. Mount Robson Provincial Park is located in east-central British Columbia, just west of the British Columbia / Alberta border and Jasper National Park. It has been facing the problem of Mountain Pine Beetle Infestation for a long time. BC Parks centrally manages all fourteen parks that come under its management. To write a specific policy on mountain pine beetle infestation for Robson Provincial Park, it is crucial and mandatory to know what has been done by BC Parks in policy formulation on vegetation management and tree removal policy for all parks under its management. For this, we need to review the contexts and purposes that make vegetation management crucial for the parks so that any specific policy for Robson Provincial Park fits into overall conservation management policy framework of BC Parks. Vegetation management includes fire management, insect & disease management, vegetation restoration, and plant collection. It is significant to note that BC Parks has addressed all vegetation management issues by following the long-term ecosystem saving concerns.  Ã‚  

Tuesday, February 4, 2020

Refutation on Agassiz Essay Example | Topics and Well Written Essays - 1250 words

Refutation on Agassiz - Essay Example Although Agassiz started his work while still at the University, he won his reputation in the United States between the years 1807 and 1873 during his final studies of fossil fishes. This essay seeks to discuss the Agassiz theory and some of its refutation. The paper refutes the theory due to its insistence on the inclusion of glaciers, ‘threefold parallelism’ concept and its racist attitudes. That is because Darwin and other scientists argue that glacier is not the only force that has shaped geology worldwide and also all beings are equal. In the 1840’s Agassiz immigrated to America where he become a professor of comparative zoology at Harvard University (Wendel 162). It has been recorded that Agassiz was the first man to challenge and oppose Charles Darwin’s theory of evolution. According to him, the theory is scientifically wrong since it is unable to show evidence of transformation of a fossil animal or plant to another or one kind of living to the other. Agassiz main reason for rejecting the Darwin’s theory was based on paleontology since the fossil records did not prop up the evolution. Though Agassiz has been closely associated with the development of the glacial theory, it has been identified that he did not develop it. According to Gould and Morey, the hypothesis was developed by Jens Esmark, Jean de Charpentier, and other natural scientists in the early 1800’s. He only made a little original contribution of expanding the concept of an ice age to a global catastrophe using analytical evidence. Besides, he also developed the idea of uniformitarianism to explain the development of the earth. Moreover, Agassiz borrowed some of the ideas from his theory of mass extinction so as to improve the glacial theory. These plans included the great ice age, climate change, and evolution, and the biblical flood. As a result, the glacial theory becomes widely accepted by most