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What is Island Biodiversity? An explanation of island biodiversity should start with a definition of islands.
Yet this definition is elusive. Although we can all agree that an island, strictly speaking, is a piece of land surrounded by water, beyond this stiupulation, there is no single accepted definition.
Islands located within seas can be categorized in many ways, including by their area; by their altitude into high and low-lying islands; by a combination of the size of the land area, and political and demographic criteria to identify small island developing States; by their distance from the nearest continent; whether there are inhabited or not; the number of inhabitants; or whether they are continental land areas that used to be connected to the mainland or oceanic those that rose from the sea as a result of coral deposits, volcanic activity or tectonic forces islands.
At the SCBD, work on island biodiversity emphasizes oceanic islands and particularly small island developing States SIDS because these systems are often perceived to be the most at risk. In terms of biodiversity, the issue is clearer: Species become island dwellers either by drifting on islands, like castaways, as they break off from larger landmasses in the case of continental islands or by dispersing across the ocean to islands newly emerged from the ocean floor oceanic islands.
Henceforth they are confined to small, isolated areas located some distance from other large landmasses. Over time, this isolation exerts unique evolutionary forces that result in the development of a distinct genetic reservoir and the emergence of highly specialized species with entirely new characteristics and the occurrence of unusual adaptations, such as gigantism, dwarfism, flightlessness, and loss of dispersability and defence mechanisms.
Genetic diversity and population sizes tend to be limited, and species often become concentrated in small confined areas. The legacy of a unique evolutionary history, many island species are endemic—found nowhere else on Earth. Islands harbour higher concentrations of endemic species than do continents, and the number and proportion of endemics rises with increasing isolation, island size and topographic variety.
The island of Cuba is home to 18 endemic mammals, while mainland Guatemala and Honduras, both nearby, have only three each. Madagascar is home to more than endemic species, making it the nation with the highest number of endemic species in sub-Saharan Africa. It has often been remarked that islands make a contribution to global biodiversity that is out of proportion to their land area.The Easter Island Located Near Chile - Easter Island is a Polynesian island that covers roughly 64 square miles in the southeastern Pacific Ocean, and it is located near Chile’s west coast and east of Tahiti.
As such, the council of elders should devise the laws that will create order in the island of Tagg. The elders will utilize legal theories in formulating laws for governing the Island. Marmor () indicates that authorities normally formulate laws, which guide the populace in nations endowed with natural resources.
Diversity and the Island Nation of Tagg Name Instructor Task Date Diversity and the Island Nation of Tagg Introduction Diverse nations promote understanding among citizens using legal structures.
It is the mandate of authorities to ensure that the structures in place benefit the populace. Population diversity may be defined as the presence of varied cultural, religious, social and related backgrounds among people living in the same environment (Anleu, ). Diversity has also been proven to make group smarter—as in, they create better solutions than homogenous groups do.
Community Connection Greater connections to diverse consumers is the result of people having first hand cultural perspectives. Diversity in Tagg Island Population diversity may be defined as the presence of varied cultural, religious, social and related backgrounds among people living in the same environment (Anleu, ).
Usually, diversity generates a crisis during settlement for a compromise which is necessary for co-existence.