Non Native Species Essay

1675 words - 7 pages

Non-native species is a term commonly used to refer to plants and animals introduced to a foreign environment mostly by humanity either intentionally or accidentally.. Such exotic invaders die because they cannot adjust to the introduced ecosystem, which implies they entail domestication. However, some thrive to the extent of dominating their new ecosystem by spreading quickly and widely. These kinds of invaders do not have their native predators and with time take over the ecosystem from native species (David and Sweeney 53). The term invasive can refer to introduced species and diseases as well. Approximately 50,000 non-native species have been introduced in the US up to date. Non -native species can be referred to as invasive if it poses danger to the ecological systems. Introduced species that need to be taken care of by humans in order to thrive are known as ornamental plants. Other than human activities, non-native species can be introduced through climatic change due to natural selection whereby new organisms that can survive are established. Continental drift is another factor known to contribute to the presence of non-native species. However, these are slow processes and the most common is human activity. During past centuries, immigration has taken place globally man relocating to extremely far destinations whereby his movements yielded to the transportation of plants as well as other organisms to completely new environments away from their native ecosystem. To protect these ecosystems, native species and the economy of US, respective authorities have devised regulatory measures meant to control the introduction of new foreign species by humans. Invasive species encounter extremely strict measures imposed on them despite their benefits, which they will bring to their new environment. Early detection and immediate response is the best strategy to protect the ecosystem. This is the reason for screening of non-native species in the US border. This essay seeks to explain benefits of screening non-native species besides relaying effects of invasive species US’ environment.
Identifying, Quantifying and screening Non-native species
Experts have contended that the ongoing disease outbreaks and non-native species invasion could have prevented early in advance but it is inevitable now. This is by blocking initial entry at the US borders such that they are unable to enter. A Ghanaian importer responsible for the importation of Gambian rats, which led to the highly vulnerable monkey-pox virus cited borders’ laxity. During an interview Carroll’s sentiments concerning this laxity cited, “Europe uses strict quarantines to catch diseased wildlife imports, making inexpensive for both the exporter and importer. That’s why he loved to send animals to the United States, because there are no rules.” In contrast, appropriate ways have been devised against the importation of live animals, which implies this report meant that maybe agencies mandated with this...

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