Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/108036
Title: | Fragmentation of Andes-to-Amazon connectivity by hydropower dams | Authors: | Anderson, Elizabeth P. Jenkins, Clinton N. Heilpern, Sebastian Maldonado-Ocampo, Javier A. Carvajal-Vallejos, Fernando M. Encalada, Andrea Rivadeneira, Juan Francisco Hidalgo, Max Cañas, Carlos M. Ortega, Hernan Salcedo, Norma Maldonado, Mabel Tedesco, Pablo A. |
Issue Date: | Jan-2018 | Publisher: | American Association for the Advancement of Science | Serial title, monograph or event: | Science Advances | Volume: | 4 | Issue: | 1 | Abstract: | Andes-to-Amazon river connectivity controls numerous natural and human systems in the greater Amazon. However, it is being rapidly altered by a wave of new hydropower development, the impacts of which have been previously underestimated. We document 142 dams existing or under construction and 160 proposed dams for rivers draining the Andean headwaters of the Amazon. Existing dams have fragmented the tributary networks of six of eight major Andean Amazon river basins. Proposed dams could result in significant losses in river connectivity in river mainstems of five of eight major systems-the Napo, Marañón, Ucayali, Beni, and Mamoré. With a newly reported 671 freshwater fish species inhabiting the Andean headwaters of the Amazon (>500 m), dams threaten previously unrecognized biodiversity, particularly among endemic and migratory species. Because Andean rivers contribute most of the sediment in the mainstem Amazon, losses in river connectivity translate to drastic alteration of river channel and floodplain geomorphology and associated ecosystem services. | URI: | https://hdl.handle.net/10316/108036 | ISSN: | 2375-2548 | DOI: | 10.1126/sciadv.aao1642 | Rights: | openAccess |
Appears in Collections: | I&D MARE - Artigos em Revistas Internacionais |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
FragmentationofAndes-to-Amazonconnectivityby hydropowerdams.pdf | 5.19 MB | Adobe PDF | View/Open |
Page view(s)
42
checked on Jul 17, 2024
Download(s)
26
checked on Jul 17, 2024
Google ScholarTM
Check
Altmetric
Altmetric
This item is licensed under a Creative Commons License