What is readily apparent is that the trends reported are not homogeneous in terms
of both location and species. It is the latter that is of most concern. It is quite clear
that at a single location there have been a range of responses to a warming climate;
some quite dramatic and some negligible and some even opposite to that expected.
Fitter and Fitter (2002) reported that annual species responded more than perennials,
insect-pollinated species responded more than wind-pollinated species, and those
close to the centre of their distributional range responded more than range edge