Primary production is the foundation for everything in the consumer arena. There is no other option. You can’t make something out of nothing. That is the lesson from nature and given that we ultimately are a part of nature, we are subject to the same rules. In a practical sense, what does this mean?
Take the coral reef as an example. This is probably the single richest, most diverse, ecosystem in the underwater world. Yet they are all based in aquatic deserts. The waters are crystal clear because there is so little in them. Rich waters full of nutrients and plankton, are murky and coloured. Coral reefs have a huge organic matrix primarily made up of living coralline algae and coral, sponges, soft corals, and other living structures. It provides and amazing array of physical and biological niches for species to find ways to make a living. However, there is an important aspect of this wonderful place that is sometimes not well understood — and it is a perfect metaphor for some of the richest most diverse econosystems in the world as well. If we examine the trophic pyramid for a coral reef (here in very simplistic and diagrammatic form) we see a peculiar thing. The first diagram shows the contribution from primary producers using local resources.Continue reading