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Copyrights: All pictures were taken by amateur photographer Bruce Guthrie (me!) who retains copyright on them. Free for non-commercial use with attribution. See the [Creative Commons] definition of what this means. "Photos (c) Bruce Guthrie" is fine for attribution. (Commercial use folks can of course contact me.) Feel free to use in publications and pages with attribution but you don't have permission to sell the photos themselves. A free copy of any printed publication using any photographs is requested. Descriptive text, if any, is from a mixture of sources, quite frequently from signs at the location or from official web sites; copyrights, if any, are retained by their original owners.
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Specific picture descriptions: Photos above with "i" icons next to the bracketed sequence numbers (e.g. "[1] ") are described as follows:
EVER2_060118_088.JPG: Pure, Clean Water:
Look closely at the surface of the Glades. Floating on the water or encrusting the ground is a spongy mat called periphyton. It consists of algae species that grow only in low-nutrient water. During the winter dry season, periphyton may look gray and dead, but it is merely dormant, harboring microscopic life until summer rains arrive.
The entire Everglades food web has evolved in pure, low-nutrient water. Changes in water quality due to nutrient contamination (the introduction of phosphates and nitrates) now threaten the natural Glades, from the microscopic level to the replacement of periphyton and sawgrass with thick stands of cattails.
If nutrient contamination continues, how will the Everglades look to future generations? Will the Glades still be a natural "River of Grass," or a broad expanse of cattails, lower in diversity, and poorer in wildlife? The answer depends on efforts to protect water quality.