Tip of the Week: Invasives Create Monocultures, Kill Diversity
Posted in Gardening Tips on October 4th, 2010 by Sonia Uyterhoeven – Be the first to comment |
Sonia Uyterhoeven is Gardener for Public Education. Join her each weekend for home gardening demonstrations on a variety of topics in the Home Gardening Center. |
Years ago, I returned home to Massachusetts after living in England for 10 years and drove around my old neighborhood with a friend. I commented on a pretty purple flower I saw growing in a wetland area. When I asked her what it was, she cringed and told me it was purple loosestrife (Lythrum salicaria, pictured. Photo by Wikipedia user Meggar). At first I thought her reaction was severe until, continuing our drive, I realized it had taken over many wetland areas. Where were the native cattails (Typha), the sedges (Carex), and the swamp milkweed (Asclepias incarnata) that I had grown up with?
Ecosystems are by definition complex, and the lives of their inhabitants are interconnected. When an ecosystem is thrown out of balance by an invasive intruder, more than the flora suffers.
Insects, birds, amphibians, and mammals all depend on the native flora for food, shelter, and nesting sites and materials. An area stripped of its native vegetation creates a sterile environment that is no longer inhabitable to many creatures. read more »