Phenoweb project

@phenoweb.bsky.social

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The www.phenoweb.org project examines the effects of climate on phenology and trophic interactions across woodland food webs. The study encompasses 44 field sites across Scotland and has been run since 2014 by researchers at Edinburgh University

Nest box attached to a tree with a carpet of bluebells in the background.
Plot showing the cumulative percentage of trees in first budburst and first leaf across the Phenoweb Transect since 1 April 2026. Orange line shows southern sites, while the blue line shows northern sites. The black line represents the transect-wide trend.
One blue tit egg in a cozy looking nest lined with feathers.
A snowy mountain scene taken in the northern Cairngorms on 5 April 2026.
Fieldworker kneeling on the ground helping to install the Soprano device as it snows.
The change in date of the first oak leaf. Black points represent the mean (+/- SE) first oak leaf date in each year, across all oak trees studied on our transect across Scotland (with day 1 equal to the 1 April). The light grey points represent the first oak leaf date for individual trees. The regression line represents the estimated mean (+/- 95% CI).
One of our Field Assistants, Charlotte, checking on the progress of a blue tit nest inside of a woodcrete nest box that is attached to a tree. Photo: Megan Thompson
A single blue tit egg in a nest inside a woodcrete nest box.