In natural ecosystems or species, detectable changes can be considered as 'impact' or 'response'. The distinction between 'observed impacts'  and'observed responses'  is not always clear. For example, autonomous distributional shifts in wild species induced by increasing temperatures  may reduce risk to the species , but this process can be enhanced or supported by human intervention such as intentional changes in land use. Observed autonomous changes in natural ecosystems or species unsupported by human intervention are treated as impacts .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report