mangrove swamps Flashcards
define mangrove swamps
Blanket term used to describe tropical communities dominated by trees and shrubs that can grow in salt water or very salty soils
what was reported in walsh 1974
sixty to seventy five percent of the coastline in tropical regions is lined with mangroves
what are the four types of mangroves
white red black buttonwood
where do mangroves grow
on shores with little wave action
what are mangroves often associated with
leeward side of islands
what does lack of high water movement mean
fine sediments settle out forming a muddy bottom which tend to be anoxic - lacking oxygen
what is the scientific name for red mangrove
rhizophora mangle
what zonation is the red mangrove in
Usually most seaward mangrove tree in bahamas and caribbean
how does the red mangrove stabilise itself
Has numerous pop roots that extend from the trunk and help to stabilize the tree in the shifting mud substrate in which it grows
how do the seeds germinate
germinate while still attached to the tree forming arrow shaped seedlings which grow to 25 to 30 cm in length before they detach from the parent plant
Seedlings float in the water with which rooting end down until they reach water of a suitable depth to allow them to take root
what is the scientific name for black mangroves
avicennia germinans
where does the black mangrove dominate
the next landward zone
what does the area of the black mangrove receive
high tide water and can remain flooded for long periods of time leading to a highly saline anoxic mud substrate
what is the black mangrove distinguished by
pneumatophores vertical roots that extend above the water from the main horizontal root network
Allow oxygen to diffuse into the roots of the plant so compensating for the lack of oxygen in the mud
what is the scientific name for white mangrove
laguncularia racemosa