Theory 54/Metapopulation/Termination phase
Collapse Is a Connectivity Threshold
The claim
A network collapses when connectivity falls below a threshold, and the collapse is abrupt because extinction and colonisation both weaken.
01Mechanism
Below the threshold, colonisation cannot keep pace with extinction anywhere.
02Prediction
Collapse should be abrupt at a connectivity value.
03Refutation
Gradual decline with connectivity would remove the threshold.