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Markus Matern

Working, Where Others Have Fun

Isaac Martinez

Tamarindo Estuary, Guanacaste

Between Tamarindo and Playa Grande, Costa Rica

5:25 p.m. Local Time - Sept. 22, 2007

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© 2007 Isaac Martinez, Some Rights Reserved. Creative Commons License

Caption

The Tamarindo Wildlife Refuge protects a large estuary, mangrove forest and tropical dry forest in an area covering almost 400 hectares. A navigation by boat in esturay offers an opportunity to observe rare and abundant wildlife - including dozens of bird species and three species of monkeys - while learning about the unique ecosystem of the mangrove forest.

Mangrove forests are part of a productive ecosystem that supports abundant life through a food chain that starts with the trees. The leaves of mangrove plants, like all green plants, use sunlight to convert carbon dioxide gas to organic compounds in a process called photosynthesis. The carbon absorbed by plants during photosynthesis, together with nutrients taken up by plants from the soil, provide the raw materials for tree growth. Tree growth is essential in sustaining the life of all other organisms that live in the mangroves. Live and decaying mangrove leaves and roots provide carbon and nutrients that are used by other organisms in the mangrove ecosystem.

Nothing is wasted in a mangrove forest. Mangrove plants shed large numbers of nutrient-rich leaves which are either broken down by fungi and bacteria or are eaten by small crabs that live on the forest floor. Decaying organic material breaks down into small particles (detritus) which are covered with a protein-rich bacterial film. Detritus is the food source for many species of molluscs (snails), crustaceans (crabs, shrimps and prawns) and fish, which in turn are the food source for larger animals. Nutrients released into the water through the breakdown of leaves, wood and roots also feed the plankton and algae that form part of the mangrove ecosystem.
more photos of Playa Grande area at http://hotelbulabula.com/360photos.asp

http://www.isaacmartinez.com

Equipment

Nodal Ninja 3, NIkon D200, PTGui 7.3, Photoshop CS3, Cubic Converter
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