Effects of Climate Change on Ticks and Tick-Borne Diseases in Europe
Figure 4
An analysis
of the long-term changes in climate suitability for the tick Ixodes ricinus in Europe (1900–1999). A
temporally extensively gridded dataset was subjected to a temporal analysis to
understand how climate has changed in 100 years and how this trend affected the
climate suitability for the tick. Areas are divided into suitable and
unsuitable (the last, without colors in the figure). In the panel “A,” the area
marked as suitable and stable means no changes in suitability for the tick.
Deterministic increase or decrease means a continued trend towards increasing
or decreasing climate suitability. Panel B shows the areas where random walk
trend has been observed. These areas are subjected to periodic cycles of
climate, thus allowing cycles of increasing or decreasing climate suitability
for the tick. (Estrada-Peña and Venzal 2006 [50], with permission from Ecohealth).