Compiled by Lori Hennings for the Portland, Oregon Metro Parks District, April 2016
Any human related activity can disturb wildlife. In order to meet The Nature Institute’s dual goals of protecting natural resources and providing access to nature, TNI has tried to strategically locate trails in less sensitive habitat and to ensure that human activity is as non-disruptive as possible. Part of that strategy has been to allow public access, while limiting certain activities such as bringing dogs into natural areas.
The evidence that dogs negatively impact wildlife is overwhelming. It is clear that people with dogs – on leash or off – are much more detrimental to wildlife than people without dogs. Dogs (Canis lupus familiaris) are considered to be a subspecies of wolves (Canis lupus), and wildlife perceive dogs as predators. (30) Impacts include:
Click here to read the full literature review.