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Environmental Science
The issue of non-native and often invasive species has been a concern for the environment scientists over the decades. The animals, fish and plants that are introduced to a new environment often have two reactions, either demise or invade and dominate and rarely will one find that there is a smooth cohabitation between the new species and the native species. Focusing on plants in specific, most species that are used in gardens represent none native species which can result to two things; they can either become invasive and put at risk the native species that are in existence or they can end up dying at the end of each season. As a policy maker I will look at some of the disadvantages of having non-native species in my area and suggest alternative ways of achieving the same ends without necessarily involving the non-native species.
The introduction of non-native species has continued to raise a lot of ecological concern in the world. There are various disadvantages that these nonnative species can cause on any land where they are introduced in....
Once these nonnative species are introduced in a new area, they might end up invading the new areas which are adjacent to that particular area they occupy through natural dispersal such as transport by water current. This can lead to invasion of these non-native species in areas that were not intended to be introduced. Secondly these nonnative species can end up displacing the native species by preying on them or even out-competing them for resources like space, food or both.in some cases this can lead to the elimination of indigenous species from an area where the non-native species have invaded. Apart from competition there can also be predation, habitat alteration, herbivory, disease as well as some genetic alterations. All these occur when non-native species are introduced in areas where native species are found. Another disadvantage is that the nonnative species can end up reproducing with native species in an area leading to creation of hybrids .these hybrids end up altering the genetic pool in a process referred to as genetic pollution which is a change that can not be…
References
Manchester, S. & Bullock, J. (2001). The Impacts of Non-native Species on UK Biodiversity and the Effectiveness of Control. Journal of Applied ecology. Retrieved March 26, 2014 from http://onlinelibrary.wiley.com/doi/10.1046/j.1365-2664.2000.00538.x/full
Non-Indigenous Occupiers of the Hudson River Valley There are animals and plants that are often considered to be native to any given region, they are vital to the ecosystem of the regions and need to be kept in balance to perpetuate the ecosystem of the region. When there is an elimination of threat to one of the native occupiers of the region, then there is a potential for risk of decimation
Native Americans The Aleutian Islands run from the Peninsula of Kamchatka in the Asiatic portion of Russia to Alaska. All the islands are bare and mountainous and the coasts rocky and surrounded by crashing waves and enormous breakers. (Larkin, unpaged) Some believe the Aleutians offer the worst weather in the world: Weather fronts originating in the South Pacific create storms hundreds of miles long and many weeks in duration (Sipes, unpaged)
Desert Indian Woman: Stories and Dreams, by Frances Manuel and Deborah Neff. Specifically, it will discuss and include Frances Manuel's tribal origins, traditions, and culture of this American Indian woman in the past, present, and future, along with contemporary issues as she functions in Tribal and non-Indian societies. Frances Manuel is a woman caught between the culture of the past and the society of the future. As she struggles
Native Americans: Separate and Unequal Native American Isolation Native Americans have continued to represent a marginalized ethnic minority in the United States, despite repeated efforts at assimilation. No one argues publicly anymore that Native Americans are inferior to Whites, but the taint of racism seems to remain embedded in public policy decisions concerning this demographic. Accordingly, Native Americans have attempted to insulate themselves from the influence of what can only be described
Most Native Americans would demonstrate exceptional tolerance to other religions but their own religious beliefs are based on nature. Even though years of assimilation had initially damaged the cultural roots of Native Americans, there is now a new kind of cultural and social change that we notice in this group. People are working hard to reclaim their cultural identity, which has triggered a gradual process of cultural renewal. This cultural
Prior to the landing of the Spanish, the population was estimated to have been upwards of 20 million, making these Mesoamerican cultures some of the most advanced in certain areas with the ability to sustain a large population (Hamnett, 1999). The geographic area now known as the West Indies, Caribbean Islands, Mexico and Central America were very different places just a few short years prior to 1492. Central to the