We get pretty steeped around here in energy and policy and what Kara had for breakfast. But every once in a while we like to go outside. Especially this time of year – and specifically during a freakishly warm winter – when the weather warms and we SpinachHeads get to leave the cannery and spend more time in the fields, if you will.
Today’s topic: wildlife corridors, and whether or not they actually work to unite populations of species despite development of roads and highways and ongoing growth of cities. The idea is a brainchild of friend-of-the-blog (in our dreams) E.O. Wilson, who hypothesized back in the 60s that the biggest threat to species survival was habitat isolation, and the more we cut off major parts of habitat, the more dire some species’ peril becomes.
So do they work? That’s the question Fred Pearce at New Scientist asked earlier this week. And it got us thinking. There really isn’t much academic evidence we’ve come across to show that corridors indisputably work as intended.
There is, Pearce points out, lots of proof that species like to travel through tunnels (do they hold their breath?!) and travel. But there’s little to ...