The number of butterflies has been declinung. Humans are using too many toxic products in their gardens, and everywhere in general. We will see a big decline in flora and fauna if this goes on much longer.
Butterflies pollinate almost by accident. They usually have a very wide range of flight, so the pollen gleaned off a flower in your yard may end up across town. There has been some research showing that a few of our endangered native plants may be exclusively pollinated by butterflies and could be lost without them. There is much more research needed in this area.
http://www.cas.usf.edu/garden/butterflyImportance.htm
Let us create a butterfly friendly nature wherever we can, so that future generations can enjoy the beauty that we enjoy as well.
Love,
Sue