Woodland Trust

Nature's CalendarNature Detectives

Keep your eyes peeled for the first snowdrop flowers opening - record them on our survey!

Current researchSycamore. Michael Calvert


Researchers are using data collated by Nature's Calendar in numerous ongoing studies

We will let you know more when they publish papers. Links to journals and media coverage will be retained on our research archive page.

Questions being tackled include:

  • What are the effects of spring temperatures and the severity of the preceding winter on trees coming into leaf at different latitudes?

  • Do February temperatures determine when plants flower and do early spring flowers respond most quickly to temperature?

  • Has natural selection had an impact on phenology over time and what makes species more adaptable?

  • Do differences in phenology and local adaptation suggest changes in competitive advantage between woodland trees, shrubs and ground flora?

  • Has the phenology of orange tip butterfly and its food-plants, garlic mustard and cuckoo flower, co-evolved?

  • Is there loss of synchrony nationally between oak-leafing, winter moth emergence and blue tit egg-laying?

  • How does potential loss of synchrony across food chains (marine, freshwater and on land) vary in relation to temperature?

  • Can the potential for climate change to disrupt pollination be modelled successfully using our flowering data?

  • Do links between satellite observations and our records help identify relations between day length and temperature in triggering events?

  • How do our records supplement the known distribution of common frog in Suffolk?