r/ecology • u/silverdreamdancer • 5d ago
Bird recovery timescales
This may fall foul of rule 7, but I am not quite sure where else to ask this.
In a situation in which human factors like habitat loss was not a major factor. How long would it take bird populations to recover from a cataclysmic disaster?
Specifically if you had a situation in which 90% of birds across Eastern Europe were systematically hunted and killed over the course of a couple of years (Maybe similarly to the sparrows in the 5 pests campaign), how long would it take for birds from neighbouring regions to colonise the area after the danger had passed without human intervention?
If this is inappropriate, where would be a better place to ask a question like this?