After our spring/summer break, needed to leave the animals undisturbed during nesting and fledging season, we began a new season of overgrown grasslands restoration.
The upcoming season will take place from 1st of September 2022 until March 31st 2023. Overgrown grasslands will continue to be restored in the Ježević dry grassland, situated between the villages Koljane and Cetina. During the previous season 47,6 ha of dry grassland was already restored, an area we will increase in the upcoming season.
Grasslands are being restored by manually removal of woody vegetation, especially juniper (Juniperus oxycedrus). Juniper bushes have been taking over grassland areas for decades, and as a plant species that is not normally eaten by grazing animals the only viable method of removal is manually removing the plants, as it used to be done in this area in the past when more people and animals lived here.
By restoring the overgrown areas, we are hoping to attract species whose habitat is dry grassland, and are currently declining in number due to habitat loss. The short-toed lark (Calandrella brachydactyla) and the stone-curlew (Burhinus oedicnemus) are examples of bird species that depend on this habitat and are therefore at risk, not only in Ježević dry grassland, the only such grassland left on Dinara, but at the very few remaining habitats of this kind left in Croatia overall. The last breeding pair of the stone-curlew was recorded here two years ago and the species has since disappeared from this area due to habitat loss. We are hoping to see it return after restoring almost 50 ha of open grassland last season and expanding that area further in the upcoming season.
We chose the Ježević dry grassland specifically as it is the last recorded site of nesting stone-curlews on Dinara as well as a current habitat of the short-toed lark. We want to continue restoring and expanding this area to reverse the negative habitat trends affecting the quality of this habitat that is needed for these and other species dependant on open habitats. Some sites have only become so overgrown recently so we will also try to restore those areas to attract breeding birds.
This season our goal is to restore at least an additional 53 ha of dry grassland, with the aim that these areas once cleared will be continually used and maintained, meaning they should be used for grazing. It is a natural and best way to maintain grasslands, therefore extensive cattle breeding significantly contributes to maintaining biodiversity. We are hopeful the cleared areas will therefore not only remain cleared but will also expand, increasing the number of farmers and cattle.
In addition to grassland restoration, we will continue our work on restoration of ponds and wells, mountain trails and dry walls. All of which are important parts of our cultural heritage as well as helpful assets for the local farmers.
As last year, restoration work ends at the end of March for a very important reason. In the, spring nature wakes up and many animal species begin their mating season, which for birds means the beginning of their nesting season. At this time nature is at their most vulnerable, and especially ground-nesting birds such as the stone-curlew, short-toed and other larks. Even unintentional human disturbance, which may not seem harmful, are a danger for the nests and the young if they occur in areas where these rare species nest. If disturbances occur and result in nests being destroyed while they have eggs or before the fledglings learn how to fly, it can mean the breeding effort was unsuccessful and therefore the survival of the birds is less likely.
Due to its exceptional biodiversity and preservation of nature, Dinara was declared a Nature Park, thusly we invite all individuals and institutions to be considerate towards nature and respect its cycles. We suggest all institutions and individuals, before organising event and activities in nature, to consult the relevant expert institutions (public institutions for the management of protected areas and other protected natural values or, in case of Dinara, the Ministry of Economy and Sustainable Development), as well as public land managers such as Croatian Forestry or local government units to acquire necessary permissions.