Future climate change driven sea-level rise : secondary consequences from human displacement for island biodiversity

© 2012 Blackwell Publishing Ltd.

Bibliographische Detailangaben
Veröffentlicht in:Global change biology. - 1999. - 18(2012), 9 vom: 24. Sept., Seite 2707-19
1. Verfasser: Wetzel, Florian T (VerfasserIn)
Weitere Verfasser: Kissling, W Daniel, Beissmann, Helmut, Penn, Dustin J
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2012
Zugriff auf das übergeordnete Werk:Global change biology
Schlagworte:Journal Article Indo-Malaysia conservation priorities extinction risk global change human migration human settlements insular biodiversity range contractions sea-level change
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520 |a Sea-level rise (SLR) due to global warming will result in the loss of many coastal areas. The direct or primary effects due to inundation and erosion from SLR are currently being assessed; however, the indirect or secondary ecological effects, such as changes caused by the displacement of human populations, have not been previously evaluated. We examined the potential ecological consequences of future SLR on >1,200 islands in the Southeast Asian and the Pacific region. Using three SLR scenarios (1, 3, and 6 m elevation, where 1 m approximates most predictions by the end of this century), we assessed the consequences of primary and secondary SLR effects from human displacement on habitat availability and distributions of selected mammal species. We estimate that between 3-32% of the coastal zone of these islands could be lost from primary effects, and consequently 8-52 million people would become SLR refugees. Assuming that inundated urban and intensive agricultural areas will be relocated with an equal area of habitat loss in the hinterland, we project that secondary SLR effects can lead to an equal or even higher percent range loss than primary effects for at least 10-18% of the sample mammals in a moderate range loss scenario and for 22-46% in a maximum range loss scenario. In addition, we found some species to be more vulnerable to secondary than primary effects. Finally, we found high spatial variation in vulnerability: species on islands in Oceania are more vulnerable to primary SLR effects, whereas species on islands in Indo-Malaysia, with potentially 7-48 million SLR refugees, are more vulnerable to secondary effects. Our findings show that primary and secondary SLR effects can have enormous consequences for human inhabitants and island biodiversity, and that both need to be incorporated into ecological risk assessment, conservation, and regional planning 
650 4 |a Journal Article 
650 4 |a Indo-Malaysia 
650 4 |a conservation priorities 
650 4 |a extinction risk 
650 4 |a global change 
650 4 |a human migration 
650 4 |a human settlements 
650 4 |a insular biodiversity 
650 4 |a range contractions 
650 4 |a sea-level change 
700 1 |a Kissling, W Daniel  |e verfasserin  |4 aut 
700 1 |a Beissmann, Helmut  |e verfasserin  |4 aut 
700 1 |a Penn, Dustin J  |e verfasserin  |4 aut 
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773 1 8 |g volume:18  |g year:2012  |g number:9  |g day:24  |g month:09  |g pages:2707-19 
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