Indicators, Surrogates, Umbrellas – Good Reads to Help Understand What they all Mean

  I don't know about you but I've had to do a bit of homework in order to be able to weigh in on the ongoing surrogate/indicator/umbrella/etc species discussions. Somewhere amidst the email traffic, I discovered three articles that were useful in clearing away some of my confusion. They might be of use to you, [...]