In some fairly alarming news, scientists have discovered that a harmful blight, known as laurel wilt disease, is taking a massive toll on the Everglades. In particular, this disease affects swamp bay trees, avocado trees, and even sawgrass--all of which can be seen on an airboat ride. Disturbingly, scientists have recorded evidence of laurel wilt disease across more than 500 square miles within the Everglades--over one-sixth of the preserved area--since it was discovered in 2011.
Similar to the massive python overpopulation in the same region, this disease was introduced by a non-native species. The redbay ambrosia beetle, which is smaller than a grain of rice, carries with it the fungus that spreads this deadly disease. This creature likely arrived from Asia at the Port of Savannah, continuing down to Florida and the Everglades through packing crates.
A number of tree islands and patches of sawgrass have been destroyed by this fungus, distinguishable by the deep purple hue it gives to affected leaves. The fungus kills trees by suffocating the xylem and phloem that transport water and nutrients from roots to leaves.
Swamp bay trees play an important role, as food sources for a number of creatures throughout the Everglades that you might see on an airboat ride. The berries on these trees provide food for wild turkeys, squirrels, and black bears, while the leaves give nutrients to butterflies and other important insect species. When these trees die off, they leave space for invasive species, like Brazilian pepper trees, to take root, which do not provide nearly as much food for animals. Due to this deadly cycle, many experts believe that the laurel wilt disease poses much more of a threat to the Everglades than the python issue.
Efforts are in place to develop vaccinations for the disease, as well as to aid in the propagation of healthy species. Scientists from the University of Florida have teamed up with state officials to develop a thorough plan.
At Wild Florida, we understand the importance of conserving native species, and we want to spread that understanding to you! Call us today at (866) 532-7167 to book your airboat ride.
