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Transcript of Mangrove Presentation
Western: West Africa, Caribbean, Florida, Atlantic, South America, and Pacific North and South America The intertidal zone is the area between the land and sea that is covered by water at high tide and uncovered at low tide Organisms in living in the intertidal zone must endure the harshness of both land and sea, and have developed special adaptations:
- having shells (such as crabs, marine snails, and bivalves); thick and tough outer coatings
- Besides physical adaptations, some species must develop an entire way of life to accomodate the harsh conditions - Leaves with glands that excrete salt
-Tolerate large amountsof salt in their leaves
- Restrict stomata to conserve its fresh water
-turn their leaves to reduce surface area exposed to hot sun American alligator
Alligator mississipensis Ardea herodiasGreat blue heron Callinectes sapidus
blue crab Chasmodes bosquianusStriped blenny Red Mangroves vs. Black Mangroves Function of prop roots supply air to the underlying roots/provide support/stability to the mangrove
traps mud/silt that flows with the tide, increases soil around it Mangrove Productivity Coverage of coastal shores provides diverse species of birds, mammals, crustaceans
preserve water quality/reduce pollution
detritus = waste or debris of any kind, gravel, sand, salt, other material produced by erosion Mangrove Food Web Mangrove Food Web Primary Producers: - Seagrasses, phytoplankton
corals, detritus Primary: - Sea cucumbers, sponges,
damsel fishes, amphipods sea urchins Secondary: - Sea turtles, sprets, parrot fishes,
butterfly fishes, surgeon fishes Tertiary: Mangrove Questions 1) Name areas around the world where mangroves can be found (distribution).
2) What is the intertidal zone?
3) Name an insect that has adapted well to living in the intertidal zone
4) What are some of the functions of prop roots
5) What is detritus? - Dolphins, eels, tunas, squids,
octopuses, crabs, birds Red Mangrove and Fish Diagram: Spotted Mangrove crab Ladder horn snail Mudskippers Red Snapper Oysters Benefits of Mangroves for birds: Mangrove provide shelter:
Tangled roots and branches give protection
Allows close proximity to fish and food sources, more eficient to feed young and themselves
Easy to bathe Rookeries and Nesting Birds in Mangroves: Rookery: A breeding colony of rooks, typically seen as nests Nesting birds in Mangroves:
Great Blue Heron
Double Crested Comorant
Louisiana Heron Ibis Brown Pelican Eagle Reddish Heron