The plant life that exists in the Good Harbor Beach area, as in any ecosystem, consists of a variety of species that can be understood base on how each came to occupy its place in the ecosystem. Some, the native ones, evolved in place over millennia and developed interlocking relationships with animals and other forms of life to create a naturally diverse biological abundance. In more resent times non-native species have been introduced that have not evolved locally. Of these, some have managed to be incorporated into the existing ecosystem without ill effect and have even added to the existing diversity. Other, invasive species, have become so dominant that the biodiversity of the area is threatened. To gain a full understand of these important concepts please join us for an onsite presentation by Chris Leahy.