SABBATICAL

SABBATICAL

Thursday, October 15, 2009

KILL THE INSECTS?

Sometimes the most important truth can be hidden in plain sight. There are over 250,000 flowering plants that have been described. That is probably a modest estimate, but I am not a Botanist and don’t want to over-sell. There are over 750,000 insects described. That number is actually much bigger and is expected to go over a million. Together this means that two thirds of all life forms are monopolized by these two groups. This is not an accident. These two groups of living things live together in an intimate way. Flowering plants could not exist without the service of insects to aid them in sexual reproduction, which we call pollination. And most insects could not exist without the shelter, surface, and food (nectar, pollen and plant parts) provided by the plants.

This concept of living together is a delicate and changing arrangement. Sometimes this balance between organisms is upset and we call the result predation, or parasitism, or disease, or extinction, or some other term. The problem is that it is very difficult to know what will upset the balance between any two or three organisms. How do we know what to avoid or how to avoid it. It is akin to a complex structure built out of toothpicks. It is hard to predict which tooth pick can be removed and which cannot without causing the collapse of the whole system. Generally humans don’t have a clue what we are doing in this regard

Mankind has put a lot of energy into killing insects. Ironically mankind relies heavily on the flowering plants for food and fiber. High mountain peaches, cherries, apples, pears, and apricots are just a few of the hundreds of plants we find desirable that rely on insects. So if plants need insects, and insects need plants, and man needs plants, then doesn’t man need insects?

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