Figure Box 2.

Procedures for the robust archiving of resurvey records. Data may not need to be made available to all but it is crucial that its existence not be forgotten given the opportunity they provide to answer fundamental ecological questions. Given the pressure for scientists to publish, archiving may ultimately be best incentivised through credit for data publication. In the meantime, and while barriers to this outcome are still present, it is imperative that metadata and the records themselves are robustly archived with researchers able to find out about their existence through online search tools e.g. DataONE.