The rainforest is a highly diverse and complex ecosystem, of which only a very small percentage is known. Because the impact of different disturbances within it is not fully understood, protecting its integrity should be the end goal. However, the threats affecting this ecosystem are only increasing over time, including deforestation and mercury pollution caused by mining.

Mercury can be found in many forms, and while these are naturally available in the environment, a great amount results from its use in human activities like gold mining. Furthermore, although not all of its forms are toxic, methylmercury, the most bioavailable and toxic, bio-accumulates within the food chain, affecting a wide range of species. Bioaccumulation of this neurotoxin in birds has been seen to affect the fitness, coordination, reproduction and survival of species. Its effects include lethargy, loss of appetite, aberrant parenting behavior and reduced motivation to forage. Unfortunately, mercury’s persistence in the atmosphere and ability to travel great distances has allowed it to contaminate areas far from the original source.

Aquatic systems are most efficient at converting mercury to methylmercury, increasing the risk of aquatic species. Because of this, much of the attention and studies of mercury contamination in birds has been focused on species associated with bodies of water. Conversely, terrestrial habitats and their wildlife have received little attention. Variations in soil moisture are expected to increase the bioavailability of mercury; increasing the risk of the long, wide, and complex food webs found in tropical systems.

Because birds are often near or in the top of food chains, they are highly prone to accumulating mercury in their bodies. However, this fact does also make them very good bio-indicators of environmental mercury contamination. They are common, conspicuous, and sampling of feathers and eggshells can confidently detect levels of heavy metals in a non-invasive manner. Particularly in tropical rainforests, more work needs to be done to assess the impact of mercury on birds.

The increasing threat mercury pollution poses to the tropics is drawing more and more attention to this region. As a short-term measure, it is necessary to replace current gold mining techniques, with already existing mercury-free methods. By moving away from this metal, we will ensure healthy human and wildlife communities and more crucially a healthy ecosystem.

Further readings:

Egwumah F.A, Egwumah P.O & Edet, D.I. (2017). Paramount roles of wild birds as bioindicators of contamination. Int J Avian & Wildlife Biol. 2(1):194‒200. DOI: 10.15406/ijawb.2017.02.00041

Appel, Peter & Jøsson, J.B.. (2010). Borax – an alternative to mercury for gold extraction by small-scale miners: Introducing the method in Tanzania. Geological Survey of Denmark and Greenland Bulletin. 87-90.

The Intergovernmental Panel on Climate Change (IPCC), the United Nations body for assessing the science related to climate change, has released a new report on the intersection of climate change and land use. 

The report analyzed over 7,000 scientific publications on the topics of land-climate interactions, including land degradation, desertification, and food security. It found that changes in land conditions, either from land-use or climate change, affect global and regional climate, and at the regional scale, these negative conditions can reduce or accentuate warming and affect the intensity, frequency, and duration of extreme climate events.

Manu National Park, Peru – August 06, 2017: Family of Capybara at the shores of the Amazon rainforest in Manu National Park, Peru

The report also found that in order to keep warming to 1.5ºC or well below 2°C as recommended by the Paris Agreement, major changes in how we use land need to take place. Sustainable land management, including sustainable forest use, can prevent and reduce land degradation, maintain land productivity, and sometimes reverse the adverse impacts of climate change on nature and people.

IPCC concluded that one of the central strategies to mitigate climate change is to protect the forests and wetlands that are still standing and to restore as much of the currently degraded land as possible. This is the type of conservation action we are taking in the headwaters of the Amazon – one of the last wild places left on Earth. By creating new conservation areas, empowering forest users and farmers to use land and natural resources sustainably, and reforesting degraded land, we help mitigate the effects of climate change on all of us. 

Read the IPCC full press release here.

Earlier this year, the government of Peru launched a multi-sectoral and comprehensive mega-operation aimed at eradicating illegal mining and associated crime in La Pampa, Peru, called Operation Mercury. The operation came about in part after Amazon Conservation, through our real-time monitoring program, provided the Peruvian government with key information on the location of illegal mining camps that enabled the government to take coordinated action.

The operation, named after the mercury contaminant that is released into the water as a byproduct of the mining process, took the information we provided and began major efforts to stop the widespread deforestation in the area caused by illegal miners, improve development in the region, and deter other illicit activities such as sex trafficking and child labor that take place in mining camps.

Using our real-time satellite technology and drone overflights, we have been assessing the success of the operation in stopping illegal gold mining. To date, we have found a major reduction in deforestation from gold mining in La Pampa due to the operation. Gold mining-based deforestation has decreased by 92% between 2018 (2,200 acres) and 2019 (165 acres), comparing the situation before and after the start of Operation Mercury.

Despite its significant success, the gold mining deforestation in La Pampa has not yet been completely eradicated and continues in numerous remote and isolated areas, as we show in our latest MAAP report. However, the results of the operation are a big win for conservation, as they show that strong government action can help curb illegal deforestation. And when action does take place, we have seen that forests begin to recover and grow back.  

Amazon Conservation will continue to assess the progress of the operation, and work closely with the government to produce fact-based reports that can be turned into action on the ground.

Our Co-Founder and Ecologist Enrique Ortiz made the news recently through an opinion piece on what can be done to reverse current trends in deforestation and ensure that economic development in the Amazon is not at odds with conservation.

Although deforestation in the Amazon is on the rise, Ortiz highlights that recent success stories show that policies could be established to reverse the trend, at a relatively low cost compared with other climate change mitigation strategies. Incentives for small- and large-scale producers can promote sustainable agricultural practices when farmers tap into underutilized land and improve efficiencies, and economic incentives could encourage reforestation.

Amazon Conservation is implementing many of these conservation solutions on the ground right now, including training farmers and forest users on how to conserve their land and showing them the economic benefits of conservation. Forest users working with Amazon Conservation have seen significant increases in their income because the forest products they harvest are coming from healthier forests. 

Read the full article at The New York Times.

Los Amigos Bird Observatory | Cotingas, manakins, and toucans are among the many fruit-eating birds found in the tropical forest. Unlike the species in temperate zones, tropical bird species have evolved to depend on this resource year-round. However, fruits are a food supply that can be highly patchy in time and space. In areas with pronounced wet and dry seasons, fruit abundance typically peaks during the wet season and is lowest during the dry season. Now, with the end of the rainy season, the abundance is coming to an end. So what will the fruit-eating birds rely on?

Through Amazon Conservation’s Monitoring of the Andean Amazon Project (MAAP), we identify, analyze, track, and publicize deforestation taking place in the Amazon in real-time using high-tech, satellite imagery. We use this information to make local authorities, policymakers, and the general public aware of what is happening on the ground.

Recently, we conducted an in-depth analysis of 2018 data on forest cover loss and found that 2.5 million acres were deforested in the western Amazon (Colombia, Peru, Ecuador, Bolivia, and western Brazil) last year. An average of 5 acres was lost per minute to deforestation last year. Our additional analysis indicated that, of this total, 1.9 million acres were primary forests, which play a vital role as carbon sinks, mediators of the global water cycle and cradles of biodiversity. 

The combination of forces driving deforestation varies in each country. Land grabbing, unsustainable agricultural activities and expansion, and gold mining were among the key drivers of deforestation that we identified in this region.  

Read more on our 100th MAAP Report.