Example of the "Mismatch visualiser" showing the delay between Winter moth (larval onset) versus great tit (arrival)

Phenological Mismatch Observatory

We would like to take this opportunity to present a project created using PEP725 data. Nandini Saxena describes her work as follows: ‘The Phenological Mismatch Observatory is an open-access platform that synthesises iNaturalist and eBird citizen science data to produce phenological mismatch scores for species pairs that depend on each other ecologically. The PEP725 Germany…

Flowchart depicting the data collection and access mechanisms and how PEP725's open-access model supports global collaboration.

PEP725: 15 years of driving European and global phenology science

Our latest publication: Templ, B., Scheifinger, H., Ostovary, I., Ungersböck, M. and Ressl, H. (2026), PEP725: 15 years of driving European and global phenology science. New Phytol. https://doi.org/10.1111/nph.70869 Phenology – the timing of seasonal biological events – is a sensitive indicator of climate change and ecosystem dynamics. Long-term, broad-scale phenological data are crucial for understanding and…