Aufsatz in einer Fachzeitschrift
Scenarios of freshwater fish extinctions from climate change and water withdrawal



Details zur Publikation
Autor(inn)en:
Xenopoulous, M.; Lodge, D.; Alcamo, J.; Märker, M.; Schulze, K.; Vuuren, D.
Publikationsjahr:
2005
Zeitschrift:
Global Change Biology
Seitenbereich:
1557-1564
Jahrgang/Band:
11
Erste Seite:
1557
Letzte Seite:
1564
ISSN:
1354-1013

Zusammenfassung, Abstract
Reductions in river discharge (water availability) like those from climate change or increased water withdrawal, reduce freshwater biodiversity. We combined two scenarios from the Intergovernmental Panel for Climate Change with a global hydrological model to build global scenarios of future losses in river discharge from climate change and increased water withdrawal. Applying these results to known relationships between fish species and discharge, we build scenarios of losses (at equilibrium) of riverine fish richness. In rivers with reduced discharge, up to 75% (quartile range 4-22%) of local fish biodiversity would be headed toward extinction by 2070 because of combined changes in climate and water consumption. Fish loss in the scenarios fell disproportionately on poor countries. Reductions in water consumption could prevent many of the extinctions in these scenarios.


Schlagwörter
Climate change, fish richness, global rivers, IPCC, reduced discharge, Scenarios, species–discharge, water consumption, WaterGAP


Autor(inn)en / Herausgeber(innen)

Zuletzt aktualisiert 2019-25-07 um 13:11