Deadwood beetles and other deadwood inhabitants
The biodiversity in deadwood, which provides a habitat for countless organisms, is enormous. For many animals such as birds, bats and insects of all kinds, deadwood structures are essential for spending part to most of their lives in them. In the Donau-Auen National Park, deadwood structures are consciously left and enriched in order to make this valuable habitat usable again for the many creatures that depend on it. For particularly endangered species such as the deadwood beetle alpine longhorn beetle, scarlet flat beetle or oak longhorn beetle, targeted mapping is carried out and its findings are incorporated into the management.
German tamarisk & Dwarf bulrush
Both species are pioneer species that were typical for the Danube wetlands before the Danube was regulated. On extreme sites where they have to survive drought and flooding, they can hold their own against competitors. Habitat loss and loss of structure-forming processes have constantly decimated both species.
They are currently classified as critically endangered in Austria and extinct in the national park area. Hydraulic engineering measures and renaturation projects have led to improvements in habitat quality for these plants in recent years. For some years now, breeding has been used to try to preserve the species and reintroduce them into their natural habitat at suitable sites.
Other species supported by special promotion and monitoring programmes
In addition to these representatives, there are many other rare species that are supported by special promotion and research programmes in the Donau-Auen National Park. These include the plants black poplar, common ash, wild grapevine, crayfish claw and several orchid species. Among the animals, increased attention is paid to various bat species, European ground squirrel, beaver, imperial eagle, kingfisher, dice snake, sterlet, Danube crested newt and primeval crayfish.