Sunset Cruise on Rookery Bay, Southwest Florida
Saturday 26 April 2008
Part 3: More About The Mangroves
Dr. Jackson told of a time he went to Costa Rica and visited old growth mangroves, which were a hundred feet tall and 3 feet in diameter. He said we don’t have old growth here in Florida any more because mangroves had been cut down and used to make furniture, but they’re starting to make a comeback. Anyhow, he described walking UNDER the roots of the old growth mangrove trees in Costa Rica, and he said that for him, it was like walking through a cathedral.
Video: Cruising by some mangroves. Audio: Early explorers faced the tangle of the mangroves – and lots of skeeters!
There are a variety of mangroves, and they grow in a sort of wave depending upon how far you are from the shore. Red ones grow in the water, then the black ones, then the white, and finally the buttonwoods grown the furthest inland.
Video: Bookin’ along at a decent speed. Audio: Lots of wind, but beginning of Dr. Jackson talking about Kleptoparasitism which is a kind of piracy amongst living organisms. I believe he was referring to the Magnificent Frigatebird
Dr. Jackson explains that estuaries are shallow, and this allows mangroves to take root and rise to the skies, as well as allowing other plant life to thrive in the water; the shallowness allows for sunlight to reach the bottom, giving rise to photosynthesis.
Because photosynthesis can happen in the shallow waters of this bay, grasses and other plants can grow here, providing food, hiding places, and nursery grounds for many, many forms of wildlife. This includes the mangrove islands.
Video: Panning a mangrove island where lots of birds are settling down for the evening. Audio: talking about clam seeds that start out as parasites
Video: Cruising by mangroves. Audio: Describing fish farms/hatcheries
Many of the life forms that thrive in the rookery and the mangrove islands can also thrive elsewhere, but there are a few that are found exclusively in the mangroves. The one that Dr. Jackson mentioned was the the mangrove cuckoo
NEXT TIME: Popular inhabitants of the rookery