Photo Credit: National Park Service
http://news.yahoo.com/blogs/ticket/fighting-drugs-border-violence-arizona-organ-pipe-cactus-132342614.html
The attached article speaks of the complications brought about in Organ Pipe Cactus National Monument by drug runners who use the area on a daily basis. A wide array of issues are discussed, everything from armed guards escorting guests to the decline in visitors. However, what is not discussed is the impact on wildlife.
In an effort to stop the flow of drugs across the border, fences have been constructed throughout several portions of the park. Fences, of course, block the natural movements of wildlife. Therefore, these fences could potentially decrease the flow of genes between metapopulations. Fences, too, prevent the establishment/reestablishment of populations. Together, these factors reduce the ability of wildlife populations to overcome obstacles placed in their way, increasing the likelihood of localized extirpations/extinctions.
Drug runners have "made" dirt roads throughout the park, left garbage behind, and assuredly harassed wildlife (intentionally of unintentionally) at all hours of the day and night. With this much damage being done, the land needs management. Management that would have to be performed under the protection of armed guards. Realistically, how likely is this?
Along the border with Mexico, wildlife faces problems where fences are in position and they face challenges where they are not. Management, in this case, must begin with humans. The vast majority of what is crossing this section of the border is marijuana. Therefore, I say legalize it. To be fair, this statement is also supported by many of my other views, but this is further support (also let me note that I do not partake, it isn't my cup of tea). Legalizing would not only allow land managers to get in and do their jobs, it could help to prevent future degradation of the ecosystem caused by drug runners. Going "green" really can be green.