OPEN, the portal that facilitates everyone’s participation in the observation of biodiversity

Citizen science

What’s this ?
We have all had, at one time or another, the opportunity to observe nature and its diversity, with wonder.
Observing for your pleasure is good… but observing and allowing the scientific community to benefit from your observations is better! This is participatory science: scientific programs to which we can all, specialists or amateurs, contribute by collecting observations, on a voluntary basis.

What’s the point ?
Firstly to improve knowledge on biodiversity.
Scientific research programs, species inventories: the better we know about biodiversity, the better we can protect it.
But also to educate and raise awareness of biodiversity issues, through citizen involvement and pedagogy through action.

For who ?
For everyone ! Whether you are a beginner, an insider or an expert in the field of observation.
In any case, you benefit from the support of expert observers who will be able to verify your identifications.
Birds, molluscs, plants, pollinating insects…: whatever your interests, you will inevitably find what you are looking for in the wide variety of participatory science programs.

Scientific credibility
Citizen science is not just for experts. But then, how to be sure of their scientific seriousness?

  • All observers, beginners and experienced, follow a well-defined data collection protocol. This protocol frames the data collected and specifies the desired collection techniques, which facilitates the scientific exploitation of the data a posteriori.
  • Observers have tools to help identify species, such as the taxonomic reference or the list of probable species by geographical area. To go further, some observation programs call on expert observers – the “verifiers” – to support the most novices.
  • Suspicious data is discarded. All transmitted data includes at least a date, a place, a species and an observer. By cross-checking these elements with each other, erroneous data are discarded.

OPEN is not a data site!

OPEN does not allow you to upload your observation data to the database of the citizen science program of your choice. To do this, you will need to go directly to the website of the program concerned.

Some examples of featured observatories

BioObs (Base for the inventory of underwater observations)

BioObs is a tool made available to all divers, it is for those who want to: – Identify the species encountered during a dive. Compile a record of their observations on one or more dives. – View their naturalist dive log. – Contribute to a scientific approach to the inventory of species. – Know the range of each species. – Learn about observable species at different sites. BioObs accompanies the evolution of the practice of divers. It meets the expectations of those who want to know more about the natural environment in which they live. BioObs allows everyone, autonomous or dive guide, to prepare the dive by learning about the observable species in the planned dive area.

Urban prairie anthologies

Green space managers want to know the effect of their management practices on the quality of grasslands, but also to assess the dynamics and evolution of these environments. Scientists have associated themselves with these questions by providing suitable tools to answer them, in the form of standardised monitoring of grassland flora. The aim is to collect data on these ecosystems over a long period and over a wide geographic area. Managers are thus invited to contribute to a collective effort to collect data on grassland flora. These data make it possible to calculate an indicator of the ecological quality of grasslands in relation to the associated management methods and thereby provide a tool to help in the choice of practices to be favored in the field.

BioLit: coastal observers

BioLit is a national participatory science program on coastal biodiversity. carried by “Planète Mer” and supervised by the National Museum of Natural History; it proposes to monitor this biodiversity through various actions. Each action corresponds to a theme of long-term monitoring of the terrestrial and marine biodiversity of the coast, or the pressures exerted there. They make it possible to respond to scientific and environmental concerns about the evolution of coastal habitats and species. The program takes place all year round, on the entire metropolitan coast and even overseas. It is aimed at a wide audience, with or without knowledge, to allow as many people as possible to participate. Alone or accompanied by an environmental education structure, you will always find an action to carry out on the coast. It’s up to you to choose which one you want to participate in.


Phénoclim is a scientific and educational program that invites the public to measure the impact of climate change on the fauna and flora in and around the mountains. Initiated in 2004, it is based on two scientific disciplines: PHENOlogy and CLIMatology, to question the rhythms of nature. The data collected in different mountain ranges allows researchers to better understand the functioning of ecosystems in each season and to study the effects of climate variations on the environment.

Do you live in the Vosges, the Jura, Corsica, the Alps, the Pyrenees or the Massif Central? Do you want to observe nature in a useful way? Phenoclim is made for you! Throughout the year, you can take part in data collection free of charge (phenological dates, snow cover, temperatures, etc.). From the plains to the tops of the peaks, all the observations are interesting for carrying out comparative analyses.