First dietary assessment of a generalist mesocarnivore, the golden jackal (Canis aureus) in Austria.

The golden jackal (Canis aureus) has rapidly expanded its range in Europe, prompting questions about its ecological impact and management. The species' expansion strategy differs from other European countries. Despite its presence demonstrated for thirty years, it still has a limited presence in Austria; its successful reproduction has just recently been confirmed. Our study provides the first comprehensive insights into the dietary habits of jackals in Austria. The analysed jackal stomachs, with 48 food items, revealed a diverse diet. The primary foods were wild ungulates, mostly from scavenging, mostly cervids and partially wild boar, making up nearly half of their diet. Domestic animals and household food comprised secondary sources, while plant matter had tertiary importance. The consumption of small mammals, birds, and invertebrates had little importance. We detected the consumption of a smaller carnivore, a marten. Our findings align with observations from other central-southeastern European regions, indicating that jackals exhibit diverse and opportunistic foraging behavior. This adaptability will likely contribute to their continued expansion in Austria and Europe. Further research is needed to explore potential ecological implications. Addressing the golden jackal's expansion requires coordinated conservation and management to balance its coexistence with humans and local biodiversity preservation. [ABSTRACT FROM AUTHOR]