Theory 09/Populations are well mixed
Dispersal Is Fat-Tailed
The claim
Plant gene flow is leptokurtic, so isolation by distance fails at short range while long-distance events dominate at large range.
01Mechanism
Most seeds fall near the parent while a few travel far; the tail governs connectivity.
02Prediction
Relatedness should fall steeply then flatten.
03Refutation
Exponential decay would remove the fat tail.