Fences are one of humanity's most frequent landscape alterations, with their combined length exceeding even that of roads by an order of magnitude. Despite their ubiquity, they have received far less research scrutiny than many human-built structures. Despite the difficulty in studying these structures, the movement-restricting effects of fences have profound ecosystem consequences. "To put it simply, in a fenced world, there are winners and there are losers," say the authors. Generalist and disturbance specialist species fare well, whereas specialist species often struggle with restricted access to habitat, altered community composition, and changes to the ecosystems on which they depend. As an example of the potential "losers," the authors highlight research indicating that "a planned US-Mexico border fence would dangerously restrict gene flow among desert bighorn sheep, isolating populations across the border."A planned US-Mexico border fence????? Bizarre illusion, pure DNC nonsense. In their "minds", Trump invented the concept of fencing. In plain reality, the southern border has been partly fenced for 100 years. About 2/3 of the border has a fence. Trump TALKED about a wall, but has only added a dozen miles** during his four years as Pied Piper. Obama did a much better job of border enforcement. Well, if all fences are ORANGE MAN BAD, then we should develop ways to break down all walls in nature. Dissolve all nests and hives. Use noise-canceling and smell-canceling devices to eliminate territorial markers among animals and plants. Remove the bark from trees, and stop trees from poisoning insects that invade their shade boundaries. Remove the skin and cell walls from all animals, since skin "isolates populations" of viruses and bacteria across the border. = = = = = ** Let's compare this achievement with an ordinary fence contractor with 4 employees and one truck. Judging from what I've seen in the neighborhood, fence contractors can put up about 100 feet in a day. In four years of constant work with no weekends, 100 * 365 * 4 = 27 miles. So four guys could do twice as much work as the entire Federal government. Admittedly the border wall is taller than the typical household fence, so put on two crews with two trucks.
Labels: Carbon Cult
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