Let me try to add something. In its structure, SARA is quite prescriptive and is charging us largely to look at the immediate threats that species are facing. It's the emergency ward.
Understanding that in the spread of many invasive species, diseases, and things such as that, there are underlying long-term trends, SARA, in the way it is structured, is really telling us to tackle the immediate current urgency. In that case, it's actually pulling the invasive weeds that prevent the native grass from growing.
It's clear that a comprehensive environmental policy needs to look at the long-term underlying causes, but SARA itself, as legislation, is built for this current immediate response.