Starlings and house sparrows were removed from injurious listing because they were well-established in North America with no hope of stopping or removing them. So does USFWS intend to eliminate Plethodon, Siren, Notophthalmus, or Taricha from North America? Do they consider this as possible or desireable? Most of the native species listed are Plethodon. Apart from two species isolated in the Rocky Mountains (P.neomexicanus, P.idahoensis), these form more or less contiguous populations in eastern North America. Even without spread via fish, insect, air, waterway, bird, vehicle tires, footwear, etc, Bsal once introduced to the wild can spread virtually continent-wide just by moving Plethodon-to-Plethodon. A movement ban will not stop it, and other [often human] vectors will be a greater and faster hazard. Only three species are known to occur naturally outside the USA, with each occurring in both Canada and the USA, and each having contiguous populations along the border which conjoin Pacific (P.vehiculum), Rocky Mountain (P.idahoensis), and Eastern regions (P.cinereus). An import ban on Plethodon will have no useful effect. Siren occur in Mexico, with contiguous populations in Mexico, so import or movement bans will have no value with respect to Siren either.
In any case, banning these species will not impair movement of the fungus via untested or tested and 'non-vector' [a possibly spurious conclusion] species. It will also not be in hobbyists' interests to test species not-yet-banned, as that could simply lead to an extension of the ban. Conversely, for genera already listed, testing could be useful to show that banning of entire genera based on one or two species might be premature and wrong.
We [I?] need to look more closely at the Act with regard to eggs. If the law bans shipping of eggs, then the interim listing would be deceptive once again by suggesting otherwise.
