Sierra Morena lynxes to be released in Doñana

Three Iberian lynxes taken from Andújar in Sierra Morena are to be released in Doñana. Key to the transfer has been the control of feline leukemia within Doñana (Consumer). As far as I know this is the first time lynxes have been moved. It seems to me that before carrying out such drastic measures they should cut the number deaths of lynx in the Doñana, i.e. sort out the problem of traffic around the park first.