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The red mangrove is one of the four mangrove species found in
the mangrove ecological community. The other species within this
community are the white mangrove (Laguncularia racemosa),
black mangrove (Avicennia germinans), and buttonwood (Conocarpus
erectus). Scientifically, they are distantly related and
are only grouped based on ecological function within the community.
The mangrove community |
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plays an important role in tropical and subtropical regions
of the world. Different mangrove species protect and stabilize
low lying coastal lands and provide protection and food sources
for estuarine and coastal fishery food chains. Mangroves serve
as feeding, breeding, and nursery grounds for a variety of fish,
shellfish, birds, and other wildlife. Mangroves also produce
3.6 tons per acre of leaf litter per year which benefit estuarine
food chains. An estimated 75% of the game fish and 90% of the
commercial species in south Florida depend on the mangrove system. Waterfront development has strongly affected the habitat of mangrove communities. Removal of these trees and the destruction of mangrove wetland habitats endanger the natural systems of Florida's coastal zone. The result of removal or damage to the mangrove communities has affected Florida's coastal land by causing erosion and a decrease in food at the base of the food chain supporting commercial fisheries. |
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| Identifying Characteristics | ||
Size/Form: |
The red mangrove is a tall tree that reaches 70' to 80' in height in the tropics; however in Florida, it is characterized as a short bushy tree reaching about 20' in height. It is characterized by its numerous above ground roots called prop roots. | |
Leaves: |
The persistent leaves are oppositely arranged, 3" to 5" long and 1" to 2" wide. They are elliptical in shape, dark green on top, and paler below. Leaf margins are smooth. | |
Flowers: |
The flowers on the red mangrove are a pale yellow and appear in the spring. | |
Fruit: |
The leathery fruit is a rusty-brown conical berry. Before it falls from the tree, one seeds germinate and send down an initial root, 6" to 12" long. When the fruit falls this root lodges in the soil and the top begins to grow immediately. This is a unique plant adaptation to the wet environment. | |
Bark: |
The thick gray to gray-brown bark is ridged and scaly. | |
Habitat: |
The red mangrove grows in brackish areas along creeks, bays,
and lagoons. |
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Photos Click on thumbnails to see a larger image in a new window. Close the new window to return to this page. |
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![]() Leaves, seeds, and initial roots |
![]() Flowers |
![]() Prop roots |
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