Saturday, February 23, 2013

Friday 2/22



Mangroves

There are three types of mangroves, the Black Mangrove, the Red Mangrove, and the White Mangrove.

The black mangrove has specialized tubular roots that take in oxygen.  They stick straight up from out of the ground and these bristles are known as pneumatophores.  This is probably the most tolerant of salty conditions.
 Benefits (organism): Provides a breeding, nursery, and a feeding zone for the environment.
Benefits (humans): Used for fishing poles, charcoal, and honey from the mango blossoms.

The Red Mangrove is more tree like that have an aerial root system which stabilizes the trees.  The roots also contain a waxy substance to keep the salt out because their not tolerant of it.
Benefits (organisms): It applies to young fish that hide in the mangroves from bigger predators.
Benefits (humans): Takes the impact of storms and lessens it, also prevents sediment erosion also helps the fishing industry by keeping the young fish alive until they are big so humans can eat them.

The White Mangroves are the shortest of the mangroves and have un-buttressed roots.  The leaves have adapted from the salty environment by developing special glands that allow salt to pass from the inside the tree to the outside.
Benefit (organisms): Many insects eat the sugars extracted from the leaves.
Benefits (humans): Used for wood for fences, tools, and fishing poles.



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