Cerová vrchovina PLA & Bükk NP
Connectivity of diverse mosaic landscapes of Slovakian & Hungarian Carpathians
The Carpathian mountains
- playground of the ConnectGREEN Project
The Carpathian mountain range represents one of the least fragmented areas in Europe. These mountains harbour natural treasures of great beauty and ecological value, and provide shelter for about one third of the carnivores in Europe. One of the major threats to the preservation of the unique biodiversity of the Carpathians is the fragmentation of the landscape, caused by the rapid modernization of the region (e.g. construction of highways and recreation facilities, urban development). What were once well‑connected habitats have deteriorated into isolated islands. This has led to the loss of favourable wildlife habitats, landscape fragmentation, animals being killed while crossing the roads (traffic mortality), noise and light disturbance. In the long run, these developments can have even fatal consequences for wildlife populations, limiting wildlife movement and gene flow between the (sub)populations of the species.
ConnectGREEN Project aims to contribute to maintaining and improving ecological connectivity between natural habitats, especially between Natura 2000 sites and other protected areas of transnational relevance in the Carpathian ecoregion, namely in the Czech Republic, Hungary, Romania, Slovakia and Serbia.
At the Carpathian level, ecological corridors were modelled and ground proofed with national and international experts. In four pilot areas, project partners demonstrated ways to identify and secure ecological corridors with the involvement of local stakeholders. Their efforts were catalogued in Action Plans in which next steps were agreed with experts and local stakeholders to further mitigate threats to ecological corridors in the pilot areas.
Cerová vrchovina Protected Landscape Area & Bükk National Park
Overview of the pilot site
ConnectGREEN’s fourth pilot area is situated in the western Carpathians on the border between Hungary and Slovakia, which sustains an enormously rich plant and animal kingdom, thanks to the area’s unique climate and its unusually varied terrain. The northern section of the pilot area consists of the Cerová vrchovina Protected Landscape Area (PLA) in Slovakia: spanning across 16,771 hectares, its territory is predominantly covered by Pannonian flora, which sets it apart from the rest of Slovakia. The northern, more alpine section of the PLA, hosts viable populations of all three European large carnivore species, while the middle part, which is transected by the I/16 first class road and the future R2 expressway, acts only as a transitory area for large carnivores. In the south, experts have confirmed a permanent presence of wolves and recorded sightings of bears. Still functioning migration corridors across the border to the Bükk, Aggtelek and Duna-Ipoly National Parks in Hungary ensure that this is the area in the country where large carnivores are most likely to be encountered. The Bükk National Park Directorate manages 884,736 hectares, 43,169 ha of which form the national park, while the rest is divided among 9 landscape protection reserves, 14 nature conservation areas and 39 natural monuments.
(c) G. Nagy
Field work in the pilot site
On the Hungarian side of the pilot area, the team, supported by the ASP Bükk National Park Directorate and Bükk Mammal Research Group Association, used modelling performed with previously gathered data to designate monitoring sites that were best suited to provide crucial information on the routes of migratory wildlife. The methods deployed in the field encompassed linear transect methods, camera trapping, acoustic monitoring and the evaluation of data received from third parties, such as roadkill incidents. On the Slovak half of the pilot area, the mapping was realised by local experts, who sought to verify the permeability of migration corridors previously identified in digital modelling.
Challenges
One of the most important source of human-wildlife conflict in the pilot area was found to be the highways, in particular the new road segment of the M30 highway connecting Miskolc with Košice, and the R2 expressway from Trenčín to Košice, which is currently under construction. The expressway, once completed, will be located on the border of the Pannonian and Alpine bioregions and is likely to significantly affect the spread of large carnivores from Slovakia to Hungary if no adequate mitigation measures are implemented. Aside from the intensively used roads, the increasing number of fences being erected throughout the landscape is becoming a growing threat to the ecological permeability of the area.
Creating partnerships
The fieldwork on the ground was accompanied by efforts to engage with local stakeholders in the pilot area to convince the wider public of the importance of ecological connectivity for effective biodiversity conservation. The team also engaged in direct discussions with relevant local authorities and decision makers and involved them in the drafting of an action plan of measures to be implemented in the pilot area as a follow-up to the work performed under ConnectGREEN. In the Hungarian section of the pilot area, the project partner MATE University sat down with numerous mayors to discuss the needs and challenges that they see in their communities in the future, and together sought to find joint solutions that took into account the demands of both the people and wildlife in the area.
On the Slovak side of the pilot area, the ConnectGREEN Methodology on the Identification of Ecological Corridors proved a very valuable resource welcomed by many actors met in the course of the project. It has allowed for the implementation of important measures that the authorities in question would not otherwise have had the time or resources to identify, explore and test. Along with other project results, the Methodology provides valuable information and arguments to defend the interests of nature protection in spatial planning.
Looking ahead
The monitoring under ConnectGREEN has confirmed that large carnivores are returning to Hungary through Slovakia - while a major conservation success, this also requires proper preparation of local citizens, foresters, hunters, farmers, as well as the managers of the area’s national parks. Close collaboration is needed to ensure a harmonious coexistence in the future. ConnectGREEN has made an important step in this regard by identifying the ecological corridors running through the pilot area. These must be granted greater protection and be integrated into spatial planning to ensure their long-term preservation.
(c) G. Nagy