Roof Ecology

Looking out my window I can see the top of the roof over the porch of Belknap. Over the years, the roof has accumulated gravel and soil on top of it and moss has grown. Scattered around the roof are pine cones and various other debris, either fallen from trees or tossed onto the roof by students. The diversity of the mosses is in fact greater than any I have seen elsewhere on campus. Here is an independent little ecosystem, it will be interesting to see if it develops further over my time here.