The Importance of "Catastrophes"
Hurricane Idalia just passed us this morning and left our landscape intact. Not the same for areas near Cedar Key and the Big Bend area of Florida which were hammered by 100+ mph winds and devastating high tides. Large swaths of Florida were recently submerged in saltwater and likely will remain so for at least several days. As most plants are not at all adapted to saltwater inundation, a great many landscape plants and vegetation in natural areas will perish. News reports often refer to such events as catastrophic ones, yet it is these very events that determine the ecology of an area. Wildfires, severe freezes, avalanches, and hurricanes are vital to the nature of plant communities everywhere. They may be uncommon, but that doesn't diminish their importance. They are so-called "keystone" events. What we take as "normal" plant communities are their result. Florida is a unique example - at least for North America. We are shaped like an open sock. Pla