The conserva-tion biologist’s analytical toolbox therefore com-prises methods that mainly serve to simplify thecomplexity of the real world such that it is under-standable and (partially) predictable. The quantifi-cation of these relationships–from the effects ofhabitat loss on biodiversity (Chapter 4) to the im-plications of small population size for extinctionrisk (Chapter 10)–is the backbone of analyticalconservation biology and evidence-based decisionmaking. Without quantified relationships androbust measures of associated uncertainty, recom-mendations to improve biodiversity’splightviamanagement intervention or policy change aredoomed to fail.
When I think about what the work on the ground must be like, I often wonder things like, "how in the world do you estimate how many of a rare animal live in such large areas?" Are people literally going out, scouring places, catching and tagging these animals to make sure they aren't recounting animals? are they relying on tracks and other evidence? I really wonder what this work is like in the most practical sense. The theory, analysis, and projections that follow kind of seem like a practical mystery to me because I don't really understand how they get the data.