Generally about the Y2Y (yukon to yellowstone
http://www.y2y.net/ ) wildlife corridor, but many specifics about Banff and the surrounding area.
http://www.nytimes.com/2006/05/23/sc...l?pagewanted=1
Likely you will need to sign up.
Points for discussion:
Is your ecological impact something you are concerned about or is it irrelevant to you?
Do you make any specific efforts to minimize your impact, locally or while out in Banff or other 'wild' areas?
I will contribute some of my opinions if others find the topic worthwhile.
edit - added y2y link