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Public health impacts of ecosystem change in the Brazilian Amazon
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Journal Article
Public health impacts of ecosystem change in the Brazilian Amazon
2015
Overview
The claim that nature delivers health benefits rests on a thin empirical evidence base. Even less evidence exists on how specific conservation policies affect multiple health outcomes. We address these gaps in knowledge by combining municipal-level panel data on diseases, public health services, climatic factors, demographics, conservation policies, and other drivers of land-use change in the Brazilian Amazon. To fully exploit this dataset, we estimate random-effects and quantile regression models of disease incidence. We find that malaria, acute respiratory infection (ARI), and diarrhea incidence are significantly and negatively correlated with the area under strict environmental protection. Results vary by disease for other types of protected areas (PAs), roads, and mining. The relationships between diseases and land-use change drivers also vary by quantile of the disease distribution. Conservation scenarios based on estimated regression results suggest that malaria, ARI, and diarrhea incidence would be reduced by expanding strict PAs, and malaria could be further reduced by restricting roads and mining. Although these relationships are complex, we conclude that interventions to preserve natural capital can deliver cobenefits by also increasing human (health) capital.
Significance Nature threads the very fabric of human lives in remote forest areas of developing countries. Unfortunately, we do not fully understand how ecosystem services (such as human health benefits) could be secured by conserving natural capital. Thus, we analyze a rich dataset on disease, climate, demography, land uses, and conservation policies in the Brazilian Amazon. Unsurprisingly, we find that the health dividends vary across conservation policies and are small relative to the overall burden of these diseases. However, interventions targeted specifically at preserving biodiversity (strict protected areas) generate health cobenefits. Thus, given a chance, nature does its part for human (health) capital, especially for the poor and politically voiceless.
Publisher
National Academy of Sciences,National Acad Sciences
Subject
/ Amazonia
/ Brazil
/ climate
/ Conservation of Natural Resources - methods
/ Conservation of Natural Resources - statistics & numerical data
/ Diarrhea - prevention & control
/ forests
/ Humans
/ Land use
/ Malaria
/ Malaria - prevention & control
/ mining
/ Public Health - statistics & numerical data
/ Respiratory Tract Infections - epidemiology
/ Respiratory Tract Infections - prevention & control
/ roads
