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Janine Benysus, in her ground-breaking book Biomimicry, acknowledged Permaculture as a way to create food forests by mimicking the workings of the natural forest. The insights are still relevant. She had predicted Nature would be a powerful educational model. There are now an abundance of designs based on nature. One of these thriving design sciences is evident in the number of good mature permaculture sites worldwide.

And as we develop more observation skills, Nature becomes our patient mentor.

Revisiting Biomimicry’s Principles

Janine Benyus¹: “9 Basic Principles of Biomimicry and how they work:

1. Nature runs on sunlight. This is true of nearly every living creature, but not all.  The very rare exceptions include tubeworms in the depths of the ocean that eat chemicals released from volcanos. There are recent discoveries showing a few rare organisms do not need full sunlight. And sadly, with climate change we are witnessing the struggle of some plants to survive in full sunlight. The permaculture strategy to stack plants in a food forest is valuable here. We can fit a lot of plants into an intensive space and out-compete weeds.
2. 

   Nature uses only the energy it needs. If a creature harvests more than it needs, the harvest is not wasted. Squirrels often forget where they buried their nuts, these nuts either sprout into new trees or are eaten by other creatures. The trees benefit from this forgetful relationship.
   Most predators will kill only the weak animals in a herd. Most kill only as needed. There are always puzzling exceptions. Foxes will bury their kill and dig it up to eat later, they believe in banking. But it is difficult to see the wisdom of a predator that kills all the flock of hens without leaving some animals to reproduce. Perhaps cunning doesn’t imply planning skills as seen in Ants farming fungus or aphids.

3. Nature fits form to function.
   When a function is needed, a form evolves: The camel evolved great nostrils to minimise water-loss. The termite uses insulation to prevent the nest from overheating. Bears and skunks burrow for comfortable hibernation. Functional design today learns from nature.
   

4. Nature recycles everything.
   Energy, chemicals, and matter are used and reused by nature. Where there is desolation, very little matter is moved or transformed but where there is life there is constant change.
5.  Nature rewards cooperation.
   This is essential in the web-of-life. Many plants rely on close relationship with their pollinators. Flowers reward the bees by providing them with nectar. There are often competitors and cheats in a natural system (eg. robber bees who by-pass the stamens and raid the nectar by drilling holes in the base of the lower) but the bulk of the work is done through happy, productive relationships.
6. Nature banks on diversity.
   Through diversity, there are many different types of creatures, with a variety of habits and needs. There is an intricate co-habitation in a rich tapestry of living organisms.
7. Nature demands local expertise. In some species, we find local expertise, size and functional diversity in the one colony. Ants are a good example of diversity and are one of the most successful and diverse species on the planet (15–25% of the terrestrial animal biomass.[8)
8. Nature curbs excesses from within. When there is a limit of resources, many natural processes will curb population growth. Some species are less fertile without adequate nutrients. Some species of animals can delay the implantation of a fertile embryo, enabling them to delay pregnancy until the season is more favourable.
9. Nature taps the power of limits.
   This principle was more controversial at time of writing and is has mixed metaphores (a limit is not a power source) so it is difficult to qualify.
   Janine wrote:“real survivors are the Earth inhabitants that have lived millions of years without consuming their ecological capital, the base from which all abundance flows.” Our ecological capital includes energy, nutrients and genetic material.  Fortunately, for humanity, there a constant and free energy input from the sun, a strong life force and a rich bank of genetic material.  With careful management we can maintain a clean supply of nutrients.

Limits create responses. Innovation such as variation and diversity is stimulated by limits.  Because farming exports nutrients, there are real limits. 

Some farming ideas can help reduce nutrient loss ie. with the use of good water management to help minimise erosion. We can build soil organically by supporting micro-fauna and flora.

An integrated system like Permaculture uses less ecological capital.  It recognises our limits helps us focus for resilience.
1Benyus, Janine (1997). Biomimicry: Innovation Inspired by Nature. New York, USA: William Morrow & Company. ISBN 978-0-688-16099-9.

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