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Loss of biodiversity - caused and solved by globalisation?: Difference between revisions
Loss of biodiversity - caused and solved by globalisation? (view source)
Revision as of 15:24, 5 December 2009
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==Loss of Biodiversity== | ==Loss of Biodiversity== | ||
On the ecosystem dimension of biodiversity there is already a high degradation: The graphic on the right side illustrates this fact impressively. | On the ecosystem dimension of biodiversity there is already a high degradation: The graphic on the right side illustrates this fact impressively. | ||
In history there where many natural extinction of species (cf. Gaston & Spicer, 2004, pp. 20ff), but the current rates of extinction are estimate to be roughly 100 times higher than typical rates in the fossil record: There are estimations that the increase will be 1000-10.000 times higher in the future (cf. UNEP, 2007, p.164). | In history there where many natural extinction of species (cf. Gaston & Spicer, 2004, pp. 20ff), but the current rates of extinction are estimate to be roughly 100 times higher than typical rates in the fossil record: There are estimations that the increase will be 1000-10.000 times higher in the future (cf. UNEP, 2007, p.164). | ||
Quantifying loss of genetic diversity is difficult, but it is clear that the extinction of species and declines of population lead to a loss of genetic diversity (cf. UNEP, 2007, p. 165). | Quantifying loss of genetic diversity is difficult, but it is clear that the extinction of species and declines of population lead to a loss of genetic diversity (cf. UNEP, 2007, p. 165). | ||
Causes for this loss of biodiversity are clear: | Causes for this loss of biodiversity are clear: | ||
1. Habitat loss, degradation and fragmentation | 1. Habitat loss, degradation and fragmentation | ||
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5. Pollution | 5. Pollution | ||
(cf. UNEP, 2007, p. 169; Gaston & Spicer, 2004, p. 135). | (cf. UNEP, 2007, p. 169; Gaston & Spicer, 2004, p. 135). | ||
These reasons are undoubted- but in which way they are caused by globalization is discussed in an argumentative manner. | These reasons are undoubted- but in which way they are caused by globalization is discussed in an argumentative manner. | ||