Biology: Gaston’s Law, part 2: an example

Tutoring biology, laws of ecology can be fascinating. The tutor mentions an example of Gaston’s Law.

In a previous post I mention Gaston’s Law: the principle that a species with a small range is typically harder to find even within it, compared to a species with a large range.

Even if not by name, bird watchers know Gaston’s Law. For instance, ravens live throughout Canada, and are easy to encounter casually. The eastern bluebird, on the other hand, is limited (in Canada) mainly to the southeastern part of the country. I lived within its range for years but can’t recall seeing one.

Source:

Hoar, Tyler L. et al. Birds of Canada. Edmonton: Lone Pine Publishing, 2010.