@article{fdi:010072441, title = {{F}ragmentation of {A}ndes-to-{A}mazon connectivity by hydropower dams}, author = {{A}nderson, {E}. {P}. and {J}enkins, {C}. {N}. and {H}eilpern, {S}. and {M}aldonado-{O}campo, {J}. {A}. and {C}arvajal-{V}allejos, {F}. {M}. and {E}ncalada, {A}. {C}. and {R}ivadeneira, {J}. {F}. and {H}idalgo, {M}. and {C}anas, {C}. {M}. and {O}rtega, {H}. and {S}alcedo, {N}. and {M}aldonado, {M}. and {T}edesco, {P}ablo}, editor = {}, language = {{ENG}}, abstract = {{A}ndes-to-{A}mazon river connectivity controls numerous natural and human systems in the greater {A}mazon. {H}owever, it is being rapidly altered by a wave of new hydropower development, the impacts of which have been previously underestimated. {W}e document 142 dams existing or under construction and 160 proposed dams for rivers draining the {A}ndean headwaters of the {A}mazon. {E}xisting dams have fragmented the tributary networks of six of eight major {A}ndean {A}mazon river basins. {P}roposed dams could result in significant losses in river connectivity in river mainstems of five of eightmajor systems-the {N}apo, {M}aranon, {U}cayali, {B}eni, and {M}amore. {W}ith a newly reported 671 freshwater fish species inhabiting the {A}ndean headwaters of the {A}mazon (>500 m), dams threaten previously unrecognized biodiversity, particularly among endemic and migratory species. {B}ecause {A}ndean rivers contribute most of the sediment in the mainstem {A}mazon, losses in river connectivity translate to drastic alteration of river channel and floodplain geomorphology and associated ecosystem services.}, keywords = {{COLOMBIE} ; {EQUATEUR} ; {PEROU} ; {BOLIVIE} ; {BRESIL} ; {ANDES} ; {AMAZONE} {BASSIN}}, booktitle = {}, journal = {{S}cience {A}dvances}, volume = {4}, numero = {1}, pages = {eaao1642 [7 p.]}, ISSN = {2375-2548}, year = {2018}, DOI = {10.1126/sciadv.aao1642}, URL = {https://www.documentation.ird.fr/hor/fdi:010072441}, }