While no consensus exists thus far as to whether or not migration can be considered as a way of adaptation or as a failure of adaptation strategies, it is indeed often a survival mechanism for those affected.
尽管迄今为止，对于是把移徙视为一种适应办法还是适应战略的失败还没有达成共识，但移徙对受影响者来说确实往往是一种生存机制。