When invasive species such as Sika deer have no natural predators, humans become the only control. In a crisis this urgent, every effort to make space for our native species is welcome, however big or small. In 2022, a global study examined 150 years of invasive species removal across 1,000 islands; nearly nine out of 10 attempts were successful, creating conditions for recovery. [ ‘We don’t have a plan’: Invasive species take hold as action lags legislationOpens in new window ]Doing the work isn’t easy. When invasive species such as Sika deer have no natural predators, humans become the only control.

Source: The Irish Times April 04, 2026 12:33 UTC