Wandelen over de campus
Wandelen over de campus

Join the Bioblitz and discover nature on our campus!

Spring is in full swing, and so is nature on our campus. Have you ever stopped to think about which birds are flying around, which wild bees are visiting the flowers, or which animals live in the soil? Time to find out! From 30 April to 2 July, Radboud University is taking part in the Bioblitz: a nationwide challenge in which we work together to record as many different species as possible. You can go out on your own or join one of our organised walks.

What is a Bioblitz?

A Bioblitz is an exciting race against the clock: finding as many different species as possible – from mammals and plants to insects, frogs, mosses and fungi – within a defined area and time frame. Radboud University is taking part for the third time this year, alongside no fewer than 52 other Dutch educational institutions. Together, we are getting to know nature in an accessible way and collecting valuable scientific data on biodiversity on our own campuses.

How do you take part?

It’s easier than you think. You don’t need to be an expert on nature, as we’re using the Obsidentify app, which automatically identifies species based on your photos. The count is tracked via the Waarneming.nl platform. Every sighting entered on Waarneming.nl between 30 April and 2 July, within the boundaries of the campus, automatically counts towards the final result. At the bottom of this post, you’ll find a handy guide to help you get started quickly.

Guided walks: explore the campus with experts

Fancy exploring further? Then join one of our guided walks, organised by the Ecology Department and the Biodiversity Project Group. Come and spot moths or bats at dusk, search for soil creatures with a magnifying glass, and much more

The provisional programme:

  • Plants — Friday 1 May, 12.30–13.30 | Start: Huygens Building rear entrance
  • Campus walk to mark the Westhoff Lecture — Tuesday 19 May, 12.30–13.30 | Start: Huygens Building | Tour in English and Dutch
    Register for the Westhoff Lecture at 14.00 here (in Dutch) 
  • Birds — Thursday 21 May, 12.30–13.30 | Start: Oud Heyendaal
  • Bees & butterflies — Thursday 28 May, 12.30–13.30 | Start: Huygens Building
  • Moths — Tuesday 2 June, 1 hour after sunset | Start: greenhouse complex
  • Soil animals — Thursday 18 June, 12.30–13.30 | Start: Tiny Forest
  • Bats — June, in the evening | Start location to follow

Keep an eye on the university calendar for final details and radboudwandelingen [at] ru.nl (registration).

Enter the photo competition!

Have you taken a lovely photo of a (rare) species? Share it and be in with a chance of winning the audience award or the jury prize. The competition runs until 25 June 2026.  

Would you like to find out more about the national Biodiversity Challenge? Visit the WUR website.

beeldmerk Biodiversity Challenge
biodiversity-challenge-bioblitz-instructions-en.docx

Instructions Biodiversity Challenge

Contact information

Organizational unit
Campus & Facilities
Theme
Sustainability