Thursday, September 13, 2012

Lots of dead ends

The IUCN has profiled a lot of the very endangered animals it likes, and the comments are full of the stuff that had kept me frustrated with environmentalism for most of my life, like desperate calls to "wake up."  A commenter says

According to the Queensland Museum book of dinosaurs we have already lost 99% of species on this planet over time. We have to be more responsible as a species to try and save what we have left. 
This stuff bothers me because it's framed as an alarming talking point, but it's really just how things work.  Natural selection gives us an unsentimental system that makes most species dead-ends.  Where one goes extinct, another is supposed to arise and take advantage of the empty ecological niche.  The problem is that people have stepped in to fill a number of niches, and that's been harmful to biodiversity.  Where people are, large predators tend to disappear.  

It's not that people don't understand that there are competing interests, it's just that they're very difficult to balance.  

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