Across the rivers and forests of southeastern Europe, golden jackals are moving closer to towns and villages—not out of hunger, but strategy. A new study published in Nature Ecology & Evolution reveals why these carnivores are thriving in human landscapes where once they would have vanished: wolves, which once kept jackal populations in check across the continent, have become so rare in certain regions that settlements themselves now act as a refuge. Researchers call it a "human shield"—and it could reshape which animals dominate European ecosystems for generations.
The research, led by Nathan Ranc and colleagues, analyzed howling survey data collected from 2001 to 2017 across 8,991 locations in 13 European countries. The finding is both unexpected and significant: wolves have historically been the strongest constraint on jackal populations, but human settlements weaken this natural control. When people are nearby, jackals appear emboldened. They congregate near towns and villages where wolves—which actively avoid human activity—are unlikely to hunt them.
This dynamic mirrors patterns researchers have observed in North America with coyotes, which occupy a similar ecological niche to golden jackals. But the European context is distinct. Unlike coyotes, which faced an almost complete absence of large predators across much of North America, jackals in Europe are encountering a recovering but still fragmented wolf population. Wolves were nearly exterminated from the continent centuries ago through relentless hunting and poisoning campaigns; they survived only in the most remote frontier regions. Now, as conservation efforts gain traction, wolves are slowly returning to parts of eastern and central Europe. Yet their return is uneven—they remain largely absent from the Mediterranean and western regions where jackals have begun to flourish.
The study examined which environmental factors predict jackal presence, and the results paint a picture of a species well-suited to a changing continent. Shorter snow-cover duration, intermediate forest cover, and proximity to water all favor jackals. But the single most telling finding concerns the role of human proximity. Jackals in wolf-free regions actively avoid human settlements, but in areas where wolf packs roam, jackals gravitate toward people.
The implications are striking. Today, golden jackals occupy only about 13 percent of Europe's suitable habitat, concentrated in southeastern countries like Bulgaria, Romania, and the Balkans. Yet the researchers found that 75 percent of the continent's total area is environmentally suitable for the species—nearly six times more territory than they currently inhabit. If the "human shield" effect continues to operate as climate change progresses and human development spreads, jackals could eventually occupy vast swaths of territory where they've been absent for thousands of years, from the Mediterranean north toward Alpine regions.
The question facing European conservation is not whether jackals will expand, but whether that expansion can be managed alongside wolf recovery. The authors note that ongoing wolf restoration may naturally limit jackal range in some areas, but the persistent combination of human settlement, climate warming, and shifting land use is likely to keep offering jackals a path forward. Europe's rewilding future, it seems, will be shaped as much by where people live as by which predators return.