Know more

About cookies

What is a "cookie"?

A "cookie" is a piece of information, usually small and identified by a name, which may be sent to your browser by a website you are visiting. Your web browser will store it for a period of time, and send it back to the web server each time you log on again.

Different types of cookies are placed on the sites:

  • Cookies strictly necessary for the proper functioning of the site
  • Cookies deposited by third party sites to improve the interactivity of the site, to collect statistics

Learn more about cookies and how they work

The different types of cookies used on this site

Cookies strictly necessary for the site to function

These cookies allow the main services of the site to function optimally. You can technically block them using your browser settings but your experience on the site may be degraded.

Furthermore, you have the possibility of opposing the use of audience measurement tracers strictly necessary for the functioning and current administration of the website in the cookie management window accessible via the link located in the footer of the site.

Technical cookies

Name of the cookie


Shelf life

CAS and PHP session cookies

Login credentials, session security



Saving your cookie consent choices

12 months

Audience measurement cookies (AT Internet)

Name of the cookie


Shelf life


Trace the visitor's route in order to establish visit statistics.

13 months


Store the anonymous ID of the visitor who starts the first time he visits the site

13 months


Identify the numbers (unique identifiers of a site) seen by the visitor and store the visitor's identifiers.

13 months

About the AT Internet audience measurement tool :

AT Internet's audience measurement tool Analytics is deployed on this site in order to obtain information on visitors' navigation and to improve its use.

The French data protection authority (CNIL) has granted an exemption to AT Internet's Web Analytics cookie. This tool is thus exempt from the collection of the Internet user's consent with regard to the deposit of analytics cookies. However, you can refuse the deposit of these cookies via the cookie management panel.

Good to know:

  • The data collected are not cross-checked with other processing operations
  • The deposited cookie is only used to produce anonymous statistics
  • The cookie does not allow the user's navigation on other sites to be tracked.

Third party cookies to improve the interactivity of the site

This site relies on certain services provided by third parties which allow :

  • to offer interactive content;
  • improve usability and facilitate the sharing of content on social networks;
  • view videos and animated presentations directly on our website;
  • protect form entries from robots;
  • monitor the performance of the site.

These third parties will collect and use your browsing data for their own purposes.

How to accept or reject cookies

When you start browsing an eZpublish site, the appearance of the "cookies" banner allows you to accept or refuse all the cookies we use. This banner will be displayed as long as you have not made a choice, even if you are browsing on another page of the site.

You can change your choices at any time by clicking on the "Cookie Management" link.

You can manage these cookies in your browser. Here are the procedures to follow: Firefox; Chrome; Explorer; Safari; Opera

For more information about the cookies we use, you can contact INRAE's Data Protection Officer by email at or by post at :


24, chemin de Borde Rouge -Auzeville - CS52627 31326 Castanet Tolosan cedex - France

Last update: May 2021

Menu Logo Principal


In Natura

Our long-term monitoring programme of a wild roe deer population is based in the hills of the Coteaux et Vallons de Gascogne in the canton of Aurignac, south-west France. It is a heterogeneous agricultural landscape of around 12000 ha where the remaining woodland is fragmented and the landscape structure varies locally. We have conducted an annual capture-mark-recapture exercise on this hunted population since 2001 using a number of catch sites which vary in local habitat composition, allowing us to compare behavioural tactics across a gradient of landscape openness. We have caught well over 700 individual deer in total, and released the majority with a GPS (Global Positionning System) collar to track their movement behavior at small (daily activity) and large (dispersal) spatial scales. We take blood, fecal and hair samples to generate data on health, diet, and genetics. We also catch fawns during spring to study the early life stage which is so critical for understanding the population dynamics of large herbivores. We use proximity sensors to provide information on mother-young relationships, and we carry out direct observations to describe individual behavioural traits (vigilance, flight initiation distance, gregariousness, etc.) and to estimate reproductive success.  Much of the work involves understanding how landscape structure influences behaviour (e.g. the resource acquisition-risk avoidance trade-off) so we annually maintain an exhaustive GIS (Global Information System) of the study site describing changes in land use and agricultural and sylvicultural practices. Lastly, we study the impacts of this large herbivore on its ecosystem (ecosystem engineer sensu Jones et al. 1997, Ecology 78: 1946-57) by consuming vegetation and transferring seeds, nutrients and pathogens between landscape compartments.