ENVS200 Chapter Notes - Chapter 9: Great Bear Rainforest, Mayfly
Document Summary
Chapter 9 intro, life histories and the niche. Different species living side-by-side differ in a number of important ways. They may reproduce at vastly different rates, have lifetimes that differ by several orders of magnitude, and produce offspring of substantially different sizes. The great bear rainforest is a lush region of coastal british columbia. As a larva, the mayfly had lived in the stream for a year. Her adult stage lasts just this one day, during which she mates, deposits her eggs in the stream, and then dies. Looking across the water, we see trout flashing as they swim to the surface to consume the adult mayflies that linger too long. We tie on our mayfly lure, wade into the water, and cast away. Cedar, mayfly, fish, and humans all have lives intertwined in a web of ecological connections, but which differ greatly in scale and timing.
