Monday, April 26, 2010

HABITAT AND SPECIES REHABILITATION:
There is still time to save some of the most threatened species and ecosystems that have been pushed so close to extinction that they will perish unless we intervene. In Brazil, tremendous progress has been made in restoring the population of the Golden Lion Tamarin which resides in the dwindling Atlantic forest. According to the World Wildlife Fund for Nature, the species has recovered "from a low of 200 wild animals recorded in the early 1970s to its 1,000th wild birth in March 2001."

The restoration of entire ecosystems is most possible in regions where parts or at least remnants of the original forest still remain and there are few human population pressures. Small clearings surrounded by forest recover quickly and large sections may recover in time especially if we provide some assistance in the reforestation process. After several years, a once barren field can once again support vegetation in the form of pioneer species and secondary growth. Although the secondary forest will be low in diversity and poorly developed, the forest cover will be adequate for some species to return(assuming they still exist). In addition, the newly forested patch can be used for the sustainable harvest of forest products and low intensity logging.

Tracts of replanted forest may have ecological returns in addition to economic ones. In the short term, forests absorb large amounts of atmospheric carbon and the more trees that are replanted, the more atmospheric carbon will be sequestered. Replanting and rehabilitating secondary forests around the world has tremendous potential for offsetting greenhouse gas emissions. Furthermore, rehabilitated forest lands can attract ecotourists and sustain some native forest wildlife.

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