Table 1 Hypotheses concerning the arrival and occurrence of Batrachochytrium salamandrivorans within sites (\(\psi\)) and populations (\(\theta\)), given it occurs in the United States.

From: Batrachochytrium salamandrivorans (Bsal) not detected in an intensive survey of wild North American amphibians

 Occupancy (\(\psi\))
LowHigh
Prevalence \(\left( {\varvec{\theta}} \right)\)
HighRecently invaded, rapid transmissionEndemic, rapid transmission
LowRecently invaded, slow transmissionEndemic, slow transmission