12 Questions
What type of environments do mangroves forests tolerate?
salt water or salty soils
What is the function of the prop roots in Red Mangroves?
to stabilize them at sea
What is the purpose of the pneumatophores in Black Mangroves?
to obtain oxygen
What is the function of the nectary glands in White Mangroves?
to secret sugar to attract wasps and bees to defend the plant against predators
What is the characteristic of the leaves of Buttonwood (Grey Mangrove)?
smooth, thick, and waxy
What is the unique feature of the propagules, or young seedlings, of Red Mangroves?
they drop and float until they stick in the mud and grow into a new tree
What is the primary function of the bark of Red Mangroves?
To produce tannic acid
Which type of mangrove has adapted to grow in anoxic environments?
Black Mangroves
What is the primary function of the nectary glands in White Mangroves?
To produce sugar
Which type of mangrove has a root system that prevents drying out?
Buttonwood
What is unique about the propagules of Red Mangroves?
They drop and float until they stick in the mud
Which type of mangrove has two color forms in the Bahamas?
Buttonwood
Study Notes
Mangroves Forest
- Mangroves are plants that grow on the leeward side of a coastal community, tolerating saltwater or salty soils.
Zonation of Mangroves
- The zonation of mangroves from sea to shore includes:
- Red Mangroves
- Black Mangroves
- White Mangroves
- Buttonwood
Red Mangroves
- Have prop roots that stabilize them at sea
- Propagules (young seedlings) drop and float until they stick in the mud and grow into a new tree
- Bark contains tannic acid, which turns reddish brown when it oxidizes
Black Mangroves
- Found in muddy areas with little or no oxygen (anoxic)
- Have adapted by developing vertical roots (pneumatophores) to obtain oxygen
White Mangroves
- Found on the shore
- Have fleshy leaves to help retain water
- Have nectary glands that secrete sugar to attract wasps and bees to defend against predators
Buttonwood (Grey Mangrove)
- Has a reg root system
- Has smooth, thick, waxy leaves that prevent drying out
- In the Bahamas, there are two color forms: Green Buttonwood and Silver Buttonwood
Mangroves Forest
- Mangroves are plants that grow on the leeward side of a coastal community, tolerating saltwater or salty soils.
Zonation of Mangroves
- The zonation of mangroves from sea to shore includes:
- Red Mangroves
- Black Mangroves
- White Mangroves
- Buttonwood
Red Mangroves
- Have prop roots that stabilize them at sea
- Propagules (young seedlings) drop and float until they stick in the mud and grow into a new tree
- Bark contains tannic acid, which turns reddish brown when it oxidizes
Black Mangroves
- Found in muddy areas with little or no oxygen (anoxic)
- Have adapted by developing vertical roots (pneumatophores) to obtain oxygen
White Mangroves
- Found on the shore
- Have fleshy leaves to help retain water
- Have nectary glands that secrete sugar to attract wasps and bees to defend against predators
Buttonwood (Grey Mangrove)
- Has a reg root system
- Has smooth, thick, waxy leaves that prevent drying out
- In the Bahamas, there are two color forms: Green Buttonwood and Silver Buttonwood
Explore the different types of mangroves, their unique characteristics, and their zonation from sea to shore. Learn about the adaptations of red, black, white mangroves, and buttonwood.
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