A wide, generally shallow reservoir with surrounding wet grassland and bogs. Human activities include livestock-farming and arable agriculture.
This is a very important site for resident and passage waterbirds. Species of global conservation concern that do not meet IBA criteria: Tetrax tetrax (38-63 non-breeding individuals).
Pressure/threats to key biodiversity
Threats come from the transfer of water from the River Ebro to the River Besaya which is reducing the water-level of the reservoir (`Other' threats, above), and a project to create a golf course. Hunting is forbidden.
National None International None
BirdLife International (2020) Important Bird Areas factsheet: River Ebro dam. Downloaded from
http://www.birdlife.org on 24/09/2020.