New studies since AR5, with more sophisticated analyses designed to capture complex responses, indicate that past estimates of the proportion of species impacted by recent climate change were underestimates due to unspoken assumptions that local or regional warming should lead solely to poleward/upward range shifts and advancements of spring timing  . More complex analyses have documented cases of winter warming driving delayed spring timing of northern temperate species due to chilling requirements, and increased precipitation driving species' range shifts downslope in elevation, and eastward and westward in arid regions . Further new studies have shown that phenological changes have, in some cases, successfully compensated for local climate change and reduced the extent of range shifts . The limited number of studies of this type make it difficult to estimate the generality of these effects globally .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report