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Anniversary image marking 75 years of phenology in Switzerland, showing a plant bud being photographed with a smartphone, overlaid with seasonal icons, data graphics, and a Swiss map
75 Years of the Swiss Phenology Network

We warmly congratulate the Swiss Phenology Observation Network on reaching 75 years of continuous, invaluable work! Since its founding in 1951 by Bernard Primault of MeteoSwiss, the network has depended on the steadfast commitment of over 700 volunteer observers spread across 160 sites, tracking the seasonal rhythms of 26 native and cultivated plant species—from budding…

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New R Package pep725 for Analyzing PEP725 Data

Barbara and Matthias Templ developed the R package pep725, to support the spatio-temporal analysis and diagnostic characterization of phenological data from the Pan European Phenology database (PEP725). The pep725 package provides tools for: The package includes several vignettes demonstrating typical workflows, including data access, quality diagnostics, spatial analyses, and visualization of phenological patterns. Availability The…

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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…

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Logo EGU26 General Assembly
EGU26 / Vienna, Austria & Online | 3 – 8 May 2026

Plant and animal phenology under the pressure of climate change Phenological changes induced by ongoing climate change are affecting species, ecosystems, and even the global climate by altering species performance, species interactions (potential mismatches and new opportunities in the food web), and water and carbon cycles. Observations of plant and animal phenology as well as…

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