This figure shows the spring trends of phenology 1971-2000 grouped by their mean onset date. Each dot represents a station. Dot size adjusted for clarity. A negative phenological trend corresponds to an earlier onset of spring.
Albania,Austria,Belgium,Bosnia and Herzegovina,Bulgaria,Croatia,Czech Republic,Denmark,Estland,Finland,France,Germany,Greece,Ireland,Italy,Kosovo (UNSCR 1244/99),Latvia,Lithuania,Luxembourg,Montenegro,Netherlands,Norway,Poland,Portugal,Romania,Serbia,Slovakia,Slovenia,Spain,Sweden,Switzerland,The Former Yugoslav Republic of Macedonia,United Kingdom
Estrella, Nicole, Sparks, Tim H. und Menzel, Annette, 2009, 'Effects of temperature, phase type and timing, location, and human density on plant phenological responses in Europe', Climate Research, 39(3), S.235–248.
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