In the next slide we see the same area as it appeared from the air in 2004. The dark spots that you see are the shadows of large Australian pines.
These artificially created uplands, resulting from dredge and fill for housing developments that were never built and mosquito control canals, created habitat that is perfect for invasion by invasive non-native species such as Australian pine, Brazilian pepper, carrotwood, melaleuca, and Schefflera.
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