CC-BY-NC 4.0 Tanja Lumetsberger

Institution: Universität für Weiterbildung Krems

Project lead: Tanja Lumetsberger

Dr.-Karl-Dorrek-Str. 30, 3500 Krems

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Current projects

City Nature Challenges in Austria

Every observation counts!

The City Nature Challenge (short: CNC) is an annual nature competition between regions that takes place in spring (usually at the end of April, beginning of May) and is held simultaneously in various cities and regions worldwide. On four consecutive days, people around the world document the diversity of wild animal, plant and fungi species in their region using photos and sound recordings and share them on iNaturalist. Together with others the observations are then identified to species level on iNaturalist.

The CNC was invented by the Natural History Museum of Los Angeles County and the California Academy of Sciences in 2016 and is organized by them since then annually. 2018 the CNC went globally, and hundreds of cities and regions are participating since then in this friendly challenge every year: Which region makes the most observations? Which region has the most species? Which region can motivate the most participants?

All observation of wild organisms in the participating regions count!

Since 2020, several Austrian cities and region are also participating in this international event. The CNC is organized by each of the participating cities or regions on their own. The “City Nature Challenges in Austria” project acts as an umbrella project for these participating cities and regions in Austria.

The aim of the CNC is to reacquaint people with their local biodiversity, to arouse curiosity and to discover nature on their doorstep. You can use the observation platform iNaturalist to exchange ideas with other nature lovers and learn and improve your knowledge of the species by identifying species together with others. This data helps research, administration, and nature conservation: it contributes to a better understanding of the status of species and their distribution in Austria. Due to the large number of observations, robust data on phenology can be obtained, area expansions of invasive species or of rare/sensitive species can be detected, and rediscoveries and new finds are also possible.

When?

The next City Nature Challenge takes place from April 26^th to 29^th 2024. Planning for the 2025 CNC event already starts in October 2024.

Participate

Everyone can participate in the City Nature Challenge by making observations or help identifying observations to species level! No registration to the project is necessary. All you need is a camera (smartphone or digicam) and a free iNaturalist account for uploading the photos. In Salzburg and Vorarlberg, Observation.org and the ObsIdentify app are used to collect data. The use of both platforms is free of charge.

Now, simply take photos of wild animal, plant or fungi species between April 26^th and 29^th 2024 in the participating regions and post them on iNaturalist. That is all it takes for your observation to count in the City Nature Challenge!

You can also help identify species on iNaturalist submitted during the CNC. Or simply tell your family, friends or colleagues that the CNC is happening in their region.

iNaturalist is a citizen science platform where everyone can post images or sound recordings of their species observations and identify it together with other users. It is run by the California Academy of Sciences and the National Geographic Society. Beside the documentation of biodiversity users can also get in exchange with each other over the platform.

What’s with the data?

The observations reported to iNaturalist during the course of the CNC can be viewed and used by any user of the observation platform. So they are freely available. In addition, verified observations (which have the status of "research grade") are shared with GBIF "Global Biodiversity Information Facility" – an international biodiversity database – used by scientists worldwide for their research. In addition, the observations are also available in the Austrian Biodiversity Atlas with a slight delay.

Through your iNaturalist account, you can control how your observations and photos may be used (by providing a Creative Commons license) and you can also remove your observations at any time by deleting your account.

Podcast episode

In April 2023, coordinator of the region Krems-Wachau-Melk, Tanja Lumetsberger, presented futher insights and details about the City Nature Challenge in our podcast Wissen macht Leute. You can listen to the episode here (in German).