Experts estimate that hundreds of bats fled the Mavrokolympos dam before flooding occurred, following unexpected infrastructure damage in January. This information was disclosed by Agriculture Minister Maria Panayiotou during a recent parliamentary session, responding to inquiries regarding the fate of the Egyptian fruit bats (Rousettus aegyptiacus) that inhabit the dam’s drainage area.
- While the flooding incident at the Mavrokolympos dam raised concerns about the bats, it also highlighted the ongoing efforts to support and sustain the thriving populations of this species in Cyprus.
Unexpected Infrastructure Damage Causes Rapid Flooding
The incident at the Mavrokolympos dam began on 19 January 2025, when damage to the base of the drainage tower resulted in uncontrolled water leakage. Minister Panayiotou described the situation as unforeseen, leading to the flooding of the drainage tunnel where the bats resided.
Authorities Confirm No Bats Trapped in Flooded Tunnel
As soon as the authorities became aware of the situation, they sought to confirm whether any bats had been trapped inside the drainage tunnel. However, safe access was compromised due to the large and rapidly accumulating leak, which created hazardous conditions within the tunnel.
Using specialist bat detection equipment, officials were able to verify that no bats remained trapped. The minister stated, “The estimation of experts was that the animals abandoned the tunnel before it filled with water and mud.” This assessment provided some reassurance regarding the well-being of the bat colony.
Environmental Impact Concerns Raised
MP Charalambos Theopemptou raised concerns during the parliamentary session about whether a thorough Environmental Impact Assessment had been conducted prior to the actions taken by the Water Development Department. He questioned if proper protocols were followed to prevent the potential deaths of these bats.
Minister Panayiotou clarified that the incident fell under the category of force majeure, indicating it was an unforeseen occurrence rather than a planned action. “No gate opening occurred, but the dam emptied due to leakage,” she explained. This statement highlighted that the situation was beyond the control of the authorities and did not involve any deliberate actions that might have necessitated an assessment.
Legal Framework and Environmental Directives
The minister further noted that the provisions of EU Directive 92/43/EEC did not apply in this case. Since the flooding resulted from force majeure rather than voluntary actions by authorities, there was no obligation to notify the European Commission or undertake mitigation measures as would typically be required.
Furthermore, she reassured that numerous natural caves and cavities in the surrounding area could have provided refuge for any bats that left the tunnel prior to the flooding. Authorities are also investigating whether the bats may have integrated into existing colonies in nearby locations.
Positive Trends for the Egyptian Fruit Bat Population
Despite the incident, the Egyptian fruit bat population in Cyprus has shown encouraging growth in recent years. Minister Panayiotou reported that old colonies have been re-establishing, new colonies are forming, and there is a general increase in known populations across the island.
Following the repairs to the dam and the cleaning of the drainage tunnel, authorities expect that the habitat will again be suitable for recolonisation by the bats. Relevant departments will closely monitor the area to document any potential return of the species in the near future.
Next Steps for Mavrokolympos Dam
As authorities work on repairing the damage caused by the flooding, they remain vigilant regarding the ecological implications of the incident. Minister Panayiotou expressed confidence in the resilience of the Egyptian fruit bats and their ability to adapt and thrive in suitable environments.
She emphasised that the situation was a reminder of the importance of monitoring wildlife populations and ensuring that proper protocols are in place to protect them, even in the face of unexpected challenges.
While the flooding incident at the Mavrokolympos dam raised concerns about the bats, it also highlighted the ongoing efforts to support and sustain the thriving populations of this species in Cyprus.





