sea turtles

Turtles on the Upswing

| ChrisHardmanWriter

ENCOURAGING NEWS COMES FROM the beaches of Tortuguero, Costa Rica, where endangered green sea turtles nest by the thousands. Continuing an upward trend, the 2005 nesting season was one of the busiest on record with a total of 91,615 sea turtle nests recorded over a 4-month period. Researchers from the Caribbean Conservation Corporation (CCC) documented that in one night alone, sea turtles laid 3,000 nests on a 21-mile section of beach. In spite of poachers, beach disturbances, and turtle-eating jaguars, Tortuguero’s sea turtle population is growing steadily. “What we’re seeing are the positive benefits of long-term conservation,” explains Dan Evans of the CCC’s education program.

Located in northern Costa Rica on the Caribbean coast, Tortuguero supports the largest nesting population of green sea turtles in the Atlantic Ocean. By day the sand tells the story of the evening’s activity where rows of perfectly parallel turtle tracks cover the beach. Some of the tracks lead past the high tide mark to the deep pits the turtles dig to lay their eggs, while others only reach halfway up the beach and head back to the water. Researchers call those tracks “half moons,” when a turtle starts the egg-laying process but then changes her mind and returns to the sea. At night, it’s much harder to track the turtles’ activity. The black sand reflects the darkness of the night sky, and unless the moon is clearly visible, it’s nearly impossible to see.

Scientists and volunteers have been patrolling this beach since 1955 when renowned scientist Archie Carr set up a turtle-monitoring program with his students, friends, and family. At the time, Tortuguero’s green sea turtle population seemed on the verge of collapse. But in the years that followed, Carr and his successors at the CCC led a sea turtle campaign that helped sea turtle nesting populations rise from a low of 19,731 nests in 1972 to an all-time high of 92,523 nests in 1998. In half a century they established a permanent research station, welcomed the start of the ecotourism boom, developed a model volunteer research assistant program, and became an international force for sea turtle conservation. The data generated by the CCC’s nearly 50 years of sea turtle work has helped scientists understand the mysteries of the sea turtle and develop strategies to protect it.

CCC’s presence in Costa Rica has had positive effects on the people of Tortuguero as well. CCC collaborates with the local government, provides a variety of jobs, participates in school programs, and assists resident entrepreneurs with their ecotourism ventures. “The community has really shifted and embraces the idea that a sea turtle is worth more alive than dead,” Evans explains. Instead of killing turtles for their meat or shells, villagers can make money by hosting, guiding, or providing services to tourists coming to see the turtles.

Beginning in 1997, the scientists added a new data set to their study when beach-going jaguars started to regularly visit Tortuguero. Based on tracks, motion sensor video, and chance encounters, the researchers have determined that at least one adult male and one female and her cubs are coming out of Tortuguero National Park’s forest to feed on nesting sea turtles. CCC Scientific Director Sebastian Troëng estimates that jaguars kill about 100 of Tortuguero’s sea turtles each year, and although that number may seem high, Both Evans and Troëng agree that jaguars eating turtles are part of a natural process that doesn’t pose a threat to Tortuguero’s thriving sea turtle population. For more information about CCC and their volunteer program, visit ccc@cccturtle.org or call 1-800-678-7853.

Published in Americas magazine: By Chris Hardman

Purses from Plastic

| ChrisHardmanWriter

THE UBIQUITOUS PLASTIC grocery bag—used for lunches, garbage cans, and groceries—is one of the most prolific sources of pollution in modern-day society. Scientists estimate that worldwide people use 500 trillion plastic bags each year. In the Americas alone, the United States reports using 380 billion plastic bags a year. Cheap to buy and easy to store, the plastic bag has become the favorite of grocery stores who no longer ask, “Paper or plastic?”

Lack of recycling programs and improper disposal of the bags create a waste nightmare and environmental hazards that are too complex to track. Non biodegradable plastic bags travel on the wind polluting our oceans and forests or take up permanent residence in our already overcrowded landfills.

Since 2006 an innovative program that started in Costa Rica is using those bags in a most environmentally friendly way. Women living in small villages on the Caribbean Coast convert the plastic bags into thread and weave attractive and colorful purses with them.

Weaving for Nature is run by WIDECAST, a conservation organization that protects sea turtles in the Caribbean and its surroundings. The program solves several problems at once. The bags are re-used, eliminating the need for disposal, and the business gives people an environmentally friendly income source.

The program is organized to promote fair trade standards with an environmental mission. The weaver receives 75% of the profit and the rest goes toward sea turtle conservation efforts. The weavers, mostly housewives in small villages, work under fair and relaxed conditions and are compensated for all stages of production from collecting and washing the bags through the finished product.

According to Didiher Chacon-Chaverri, WIDECAST Country Coordinator in Costa Rica, weavers produce about 3 purses a week that means they can earn $180 a month to supplement their family’s main income.

To date the project has employed more than 50 women in villages on the coast of Costa Rica, Panama and Nicaragua. In 2008 the sale of bags, coin purses, plastic figures and Christmas Tree ornaments generated $75,000 in income for the four coastal communities.

The environmental benefits of this program are far-reaching. Along the Caribbean coast of Costa Rica and other countries, the plastic bag is a deadly enemy of marine habitats.

Because many of these bags are thrown on the ground or tossed into rivers, they often end up in the sea where they suffocate coral and kill sea turtles. For the hapless sea turtle gliding through the ocean, a plastic bag looks just like its favorite food, the jellyfish. The turtle gobbles up the bag and either chokes on the plastic or feels full and stops looking for real food.

Unfortunately plastic waste of any kind affects the entire marine environment. Because plastic bags are made of polyethylene, they are not biodegradable, and even if the bags are broken into smaller pieces, their tiny particles invade all levels of the food chain causing disease and sometimes death for marine life.

The Dolphin Research Center in Florida estimates that 100,000 marine mammals die each year from eating plastic bags.

WIDECAST estimates that each purse made is removing approximately 70 plastic bags from the environment for a total of 12,000 plastic bags a month. The bags are sold throughout Costa Rica in tourist areas and gift shops and online through http://www.inbio.ac.cr.

They range in color and size and come in various styles including beach bags, calabash bags, messenger bags, water bottle cases, and coin purses. For more information about the project, visit latinamericanseaturtles.org.

Published in Americas magazine, September-October 2009, by Chris Hardman