Mangroves 2: Mangrove as Plant
MANGROVES 2: Mangrove as Plant
Rhizophera stylosa, Channel Island (Michael Michie)
Mangroves are vascular plants which are able to grow under saline conditions. Some of the plants are able to withstand being inundated by high tides twice daily whilst others are less resistant and prefer a habitat closer to the very high tide mark. There are many mangrove species, 36 of whichc are represented in Darwin Harbour.
All mangroves have a number of adaptations to the extreme conditions of the intertidal zone. They include;
root systems adapted for absorbing air in muddy environments
salt tolerance through a number of strategies
seeds growing into seedlings while the seed container is still attached to the tree (vivipary).
Some of the mangrove species are widely distributed. The small bushy tree Scyphiphora hydrophylacea also occurs in India, Indonesia and New Guinea. Xylocarpus mekongensis which has large soft pneumatophores is named after the SE Asian river and is found from East Africa to the Pacific.