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“A major bottleneck to conservation of freshwater ecosystems is the lack of information on where the most important sites of biodiversity are located. This lack of information has hindered the development and implementation of appropriate management actions for freshwater species, as well as private sector efforts to minimise impacts through the adoption of effective environmental safeguards” says Laura Máiz-Tomé – Programme Officer at ������ϲʿ�������ֳ�ֱ�� Freshwater Biodiversity Unit, Cambridge.

Based on the ������ϲʿ�������ֳ�ֱ�� Red List published data on species conservation status and distributions of freshwater fishes, mollusc, odonata and aquatic plants, 218 KBAs were confirmed by regional experts, covering an area of 100,021 km² (13% of the study area). Of these KBAs, 11 also qualify as Alliance for Zero Extinction sites (AZE). AZEs sites are places where species evaluated to be Endangered or Critically Endangered are restricted to single remaining sites. These results highlight the urgency to develop and implement effective conservation actions for freshwater biodiversity and better water management.

Data gathered by the regional experts show that threats to freshwater species primarily include alterations in hydrology (dams and water abstraction for irrigation and human consumption), competition and predation by invasive alien species, and domestic and agricultural water pollution. These types of threat tend to spread rapidly throughout catchments due to the high levels of hydrological connectivity. For this reason:

“Management of KBAs at the catchment scale is needed to ensure effective species protection from both upstream and downstream threats often originating from some distance outside of KBAs, and to maintain the quality, quantity and timing of water flows required to sustain freshwater ecosystems. Countries in the north western Mediterranean sub-region are recommended to implement an Integrated River Basin Management approach (IRBM or similar) to better coordinate conservation and management actions across sectorial policies such as water, energy and agriculture” says William Darwall – Head of the ������ϲʿ�������ֳ�ֱ�� Freshwater Biodiversity Unit, Cambridge.

“IRBM is especially relevant for transboundary catchments in the Iberian Peninsula such as for the Duero and the Tajo rivers, where it is strongly recommended that Spain and Portugal fully implement the principles of the EU Water Framework Directive and the UN Watercourse Convention to promote sustainable water use and the protection of connected aquatic ecosystems beyond national boundaries” adds Laura Máiz-Tomé –������ϲʿ�������ֳ�ֱ�� Freshwater Biodiversity Unit, Cambridge.

Protected areas are a potentially powerful tool for conservation. However, they are often delineated primarily for terrestrial species such that they fail to include targeted management for the many restricted range and threatened species living in freshwater habitats. This project has found significant gaps in the protected areas coverage of freshwater species, with 16% of the sites identified as freshwater KBAs falling outside of any existing ‘terrestrial’ KBAs or protected areas.

“These sites should be considered within future strategies for improving the representation of freshwater biodiversity within the protected areas network across the Mediterranean region” says Catherine Numa, Species Programme Coordinator at the ������ϲʿ�������ֳ�ֱ�� Centre for Mediterranean Cooperation in Malaga.

In 2012, the (CEPF) and the MAVA Foundation funded ������ϲʿ�������ֳ�ֱ�� to fill the gaps in the Red List assessments of freshwater species in the Mediterranean Basin Hotspot and work with the relevant stakeholders to identify and validate Freshwater Key Biodiversity Areas for the southern and eastern Mediterranean sub-regions. In 2015 the ������ϲʿ�������ֳ�ֱ�� Centre for Mediterranean Cooperation in partnership with the ������ϲʿ�������ֳ�ֱ�� Freshwater Biodiversity Unit, received additional funds from the MAVA Foundation to complete the work initiated in 2012 to identify freshwater Key Biodiversity Areas in the north western Mediterranean (Portugal, Spain, France, Italy and Malta). Key Biodiversity Areas, are defined as sites of importance for the global persistence of biodiversity.

Raising awareness

As part of the process 128 potential Site Champions have been identified as individuals/ organizations best placed to raise awareness of the KBAs and the issues faced with regard to biodiversity threat, and to help to implement the required actions to safeguard these globally important sites.

KBA Data Availability

The KBA data will soon be freely available through a number of different online sources, including: and the ^TM���� managed by BirdLife International on behalf of the KBA Partnership.

The report is available here:��

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