Chapter 5: Boundaries

Boundaries in nature are akin to boundaries in any other system on this planet: they are sometimes solid, sometimes permeable, and are the marker between distinct functioning networks. In the natural world, they follow a general pattern; energy produced in the least mature side is used to allow the more mature side to move along its ecological succession. These boundaries can be wide or brief, and symmetrical or asymmetrical, but energy transfer is the main engine for development on both sides. ​But what happens when an ecosystem does not become more mature as a result? Physical disturbances and hardship within an ecosystem can cause this phenomenon, as can exploitation by a more mature or powerful system.

Reading and Discussion Questions

Answer the following questions in the comments section below after you've finished reading the chapter:

1. What is the general pattern of boundaries in nature?
2. What is ecological succession, and how can it be hampered?
3. Identify boundaries in the environment around you. If you have a garden where wildlife is present, where do you think the energy taken from your landscape is eventually deposited?

Further Research and Reading

The Nine Boundaries Humanity Must Respect to Keep the Planet Habitable

Article: Safe and Just Earth System Boundaries