A whisper from the woods

Traveling with Trees, June 2024

Jul 15, 2024

A Visit with Mangrove Trees in the Florida Keys

By Jennifer Troyan

 

The Florida Keys consist of a series of tropical islands extending approximately 120 miles from the southernmost point of Florida, nestled between the Atlantic Ocean and the Gulf of Mexico. This island chain hosts the only living coral barrier reef in the continental United States.

During a recent visit to Key Largo and John Pennekamp State Park, I saw and met a network of mangrove trees.

Key Largo, an island in the Florida Keys, is renowned for being the location of the United States’ first underwater park. This place is special to me because it combines many loves – trees, ocean, snorkeling, and diverse flora and fauna (some of which are only found in the Florida Keys).

Mangrove trees are a unique group of trees and shrubs that thrive in coastal intertidal zones, primarily in tropical and subtropical regions. Coastal intertidal zones are areas along the shoreline that are alternately exposed to air during low tide and submerged underwater during high tide, creating rich and diverse ecosystems.

Here are some key features and facts about mangroves:

  1. Adaptation to Saline Environments: Mangroves are highly adapted to saline conditions. They have specialized root systems, such as prop roots and pneumatophores (aerial roots), that allow them to cope with high salinity and low oxygen levels in the soil.
  2. Diverse Species: The term “mangrove” encompasses various species of trees and shrubs. Common mangrove species include the red mangrove (Rhizophora mangle), black mangrove (Avicennia germinans), and white mangrove (Laguncularia racemosa). All three of these species type reside in Key Largo.
  3. Ecological Importance: Mangroves play a crucial role in coastal ecosystems. They act as a buffer against storm surges and coastal erosion, provide habitat for a variety of marine and terrestrial species, and serve as important breeding and nursery grounds for fish and other wildlife.
  4. Carbon Sequestration: Mangroves are significant carbon sinks. They capture and store large amounts of carbon dioxide, helping to mitigate climate change.
  5. Water Filtration: These trees help filter pollutants from water, improving water quality by trapping sediments and absorbing excess nutrients.
  6. Economic Benefits: Mangroves support local economies through fisheries, tourism, and timber and non-timber products.

Overall, mangrove trees are vital to the health of coastal environments and human communities near these ecosystems.

Waters around mangrove ecosystems are teeming with a diverse array of creatures. These environments provide vital habitats and breeding grounds for various species.

Common creatures include:

  1. Fish: Juvenile snappers, groupers, tarpon, and mudskippers.
  2. Crustaceans: Fiddler crabs, mangrove tree crabs, and penaeid shrimp.
  3. Mollusks: Oysters and mangrove periwinkle snails.
  4. Birds: Herons, egrets, spoonbills, and kingfishers.
  5. Reptiles: Crocodiles, alligators, and sea turtles.
  6. Mammals: Dolphins and manatees.
  7. Invertebrates: Jellyfish, sponges, and sea anemones.
  8. Flora: Seagrasses in nearby shallow waters.

Mangroves support a vast network of life, vital for coastal ecosystems.

Mangrove trees support the fish we humans eat. A sign at The Mangrove Trail, a boardwalk through mangroves (in John Pennekamp State Park) suggests we remember mangrove trees when we eat a seafood dinner or enjoy the diversity of the reef. For this, they help support our population and protect our environment.

While at their visiting center, there was more information to learn. Mangroves are the only trees in the world that can grow directly in salt water – they form true Ocean Forests.

Growing up on the East Coast of South Florida, there are many mangrove forests and I love to spend time with the trees when I can. I have known about mangrove trees since early childhood. They provide a sense of safety, protection, and comfort. They are connected and strong. Their roots are mighty. Can you imagine being the protector of breaking surf from water surges? That’s strength! It’s easy to feel peace amongst such beauty and resilience. I typically leave feeling grateful for the amazing abundance of life, feeling lucky to be able to go visit them and meet like-minded people along the way. May you have the opportunity to meet some beautiful trees and forests along the way. If not, try watching a nature documentary. If that’s the closest you can get, it’s a pretty good substitute. There are some studies that indicate that if you are not able to spend time in nature, even watching a documentary can lower your stress levels and leave you in a nice state of relaxation.

 

An Important Holiday
July, 11 – World Population Day

Established by the United Nations in 1989 to raise awareness about global population issues, World Population Day highlights the importance of population-related challenges such as family planning, gender equality, and sustainable development.

Mangrove trees are vital for sustainable development, which is a key focus of World Population Day. They help mitigate climate change, protect coastal communities, support biodiversity, and provide economic resources. Preserving mangroves is essential for managing the impacts of a growing global population.

As stewards of this planet, we have a responsibility to take care of all life, including our trees, plants, humans, and creatures, great and small. We can make a difference, one small act at a time. 

 

Quotes to Ponder

“Mangroves are the rainforests by the sea, a unique and vital ecosystem teeming with life.” – Unknown

“In the intricate web of life, mangroves play a crucial role, standing as sentinels between land and sea.” – Unknown

Photography by Jennifer Troyan.

 

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