RAINFOREST ROADS

Proliferation of mountain roads a hazard to the environment in SE Asia

(07/12/2012) Mountain roads in rural Southeast Asia are providing market access for remote communities but causing significant environmental harm, including deforestation, landslides, and soil erosion, sometimes undermining the benefits they offer, warns a commentary published in Nature Geoscience.


Peru's rainforest highway triggers surge in deforestation, according to new 3D forest mapping

(09/06/2010) Scientists using a combination of satellite imagery, airborne-laser technology, and ground-based plot surveys to create three-dimensional high resolution carbon maps of the Amazon rainforest have documented a surge in emissions from deforestation and selective logging following the paving of the Trans-Oceanic Highway in Peru. The study, published this week in the early edition of the Proceedings of the National Academy of Sciences, reveals that selective logging and other forms of forest degradation in Peru account for nearly a third of emissions compared to deforestation alone.


Roads are enablers of rainforest destruction

(09/24/2009) Chainsaws, bulldozers, and fires are tools of rainforest destruction, but roads are enablers. Roads link resources to markets, enabling loggers, farmers, ranchers, miners, and land speculators to convert remote forests into economic opportunities. But the ecological cost is high: 95 percent of deforestation in the Brazilian Amazon occurs within 50-kilometers of a road; in Africa, where logging roads are rapidly expanding across the Congo basin, the bulk of bushmeat hunting occurs near roads. In Laos and Sumatra, roads are opening last remnants of intact forests to logging, poaching, and plantation development. But roads also cause subtler impacts, fragmenting habitats, altering microclimates, creating highways for invasive species, blocking movement of wildlife, and claiming animals as roadkill. A new paper, published in Trends in Evolution and Ecology, reviews these and other impacts of roads on rainforests. Its conclusions don't bode well for the future of forests.


Oil road transforms indigenous nomadic hunters into commercial poachers in the Ecuadorian Amazon

(09/13/2009) The documentary Crude opened this weekend in New York, while the film shows the direct impact of the oil industry on indigenous groups a new study proves that the presence of oil companies can have subtler, but still major impacts, on indigenous groups and the ecosystems in which they live. In Ecuador's Yasuni National Park—comprising 982,000 hectares of what the researchers call "one of the most species diverse forests in the world"—the presence of an oil company has disrupted the lives of the Waorani and the Kichwa peoples, and the rich abundance of wildlife living within the forest.


Industry-driven road-building to fuel Amazon deforestation

(03/12/2008) Unofficial road-building will be a major driver of deforestation and land-use change in the Amazon rainforest, according to an analysis published in Philosophical Transactions of the Royal Society B. Improved governance, as exemplified by the innovative MAP Initiative in the southwestern Amazon, could help reduce the future impact of roads, without diminishing economic prospects in the region.


Logging roads rapidly expanding in Congo rainforest

(06/07/2007) Logging roads are rapidly expanding in the Congo rainforest, report researchers who have constructed the first satellite-based maps of road construction in Central Africa. The authors say the work will help conservation agencies, governments, and scientists better understand how the expansion of logging is impacting the forest, its inhabitants, and global climate.


Logging roads lead to disease, social breakdown in Ecuador rainforest communities

(12/04/2006) Logging roads are linked to increased incidence of diarrheal disease and new social problems among communities along the Ecuadorian coast, according to a new study published in the Online Early Edition of Proceedings of the National Academy of Sciences (PNAS) for the week of December 4-8, 2006. Lead by Joseph Eisenberg, assistant professor of epidemiology at the University of Michigan School of Public Health, an international team of researchers examined diarrheal infections and social networks in 21 villages recently connected to a new government-constructed road network in the Choco rainforest of coastal Ecuador. They found that the new roads bring colonists to the region and allow villagers to travel more easily between villages and larger cities. Increased mobility increases the spread of bacteria, viruses and parasites according to Eisenberg.


Roads tied to bushmeat hunting in Africa

(05/09/2006) A new study ties the presence of roads to bushmeat hunting in the Congo rainforest and also raises important questions on global conservation approaches. The study, published in the current edition of conservation Biology, found roads and associated hunting pressure reduced the abundance of a number of mammal species including duikers, forest elephants, buffalo, red river hogs, lowland gorillas and carnivores. The research suggests that even moderate hunting pressure can significantly affect the structure of mammal communities in central Africa. The researchers, lead by William F. Laurance of the Smithsonian Tropical Research Institute, raise an interesting point with considerably wider implications for global conservation efforts, arguing that "as a multinational conglomerate, Shell-Gabon?s interests in environmental management at Rabi... largely reflect their sensitivity to international opinion and pressures from consumers." Drawing on their personal experiences in Africa and Latin America, the team writes "smaller corporations based in developing nations are sometimes less interested and often less capable of financially investing in environmental protection." This observation leads the researchers to ask, "As conservationists, do we pressure large, multinational corporations based in industrial nations to forego major projects in developing countries in an effort to limit environmental degradation, or do we favor such firms over smaller, national companies in the hope that they will be more sensitive to international pressures?" While their question us especially pertinent to Central Africa, it really applies to conservation on a worldwide scale. Multinational corporations can be particularly sensitive to criticism on their environmental policy and, as a result, can actually serve as competent stewards of the environment is some cases. Thus pressure exerted by green groups on large corporations may be an effective means for achieving conservation goals.


Chinese economy drives road-building and deforestation in the Amazon

(04/17/2005) Chinese economy drives road-building and deforestation in the Amazon


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