Agriculture News

September 12, 2018

Peace at a price: Scientists see threats to Colombia’s environment

FARC rebels FARC rebels meet in a rebel camp in in Colombia in May 2016. Climate and environmental scientists are raising questions about how the peace process may impact forests that were previously undevelopable because of the rebel presence. (Reuters/Eliana Aponte) Download image

WEST LAFAYETTE, Ind. – After more than five decades of hostility that cost hundreds of thousands of lives, Colombia has embarked on a new era of peace. But the peace brings its own risks: a chaotic transition could leave the country’s richly diverse forests unprotected and, ultimately, lead to a loss of resources and species that would harm rural populations.

Scientists are urging the Colombian government to plan for the future of its forests as soon as possible.

Colombia and the Revolutionary Armed Forces of Colombia (FARC) implemented a peace treaty in 2017, putting an end to more than a half century of fighting. Now, scientists are worried about the effects on the country’s important ecosystems as people pushed to urban areas by violence return to their rural homes and government and private interests look to the forests as prime opportunities to expand mining and agricultural interests.

During its existence, FARC unintentionally staved off deforestation and protected significant ecosystems, said Jeff Dukes, a Purdue professor in the Department of Forestry and Natural Resources and the Department of Biological Sciences, and co-author of a paper that addresses the issues facing Colombia’s environment.

“Fighters were growing drugs there but in general keeping out large-scale conversion of land,” Dukes said. “When you have a major political change like this, there’s the possibility that you’ll get much more pressure for development on the land. Having peace is a good thing, but if there isn’t a lot of thought and protection for forests given up front, there could be massive biodiversity loss and loss of resources throughout Colombia.”

A paper published in the journal Frontiers in Ecology and the Environment lays out the concerns about the forests, which cover about 460,000 square kilometers, or 30 percent of the country. The findings are based on a 2016 meeting in Medellín, Colombia, organized by Purdue biological sciences graduate student Alejandro Salazar, that brought together climate and environmental scientists from Purdue, several Colombian universities — Universidad de Antioquia, Universidad EIA, EAFIT University and Universidad Nacional de Colombia —  as well as Columbia University, the University of Exeter, the University of Miami and the Max Planck Institute.

Colombia — like the rest of the world — is also experiencing changes to its climate, including rising temperatures and reductions in precipitation. Deforestation could further dry out the climate and threaten the habitats of many vulnerable animal species.

Rebels stand FARC rebels stand in a rebel camp in Colombia in May 2016. Their presence kept many forests undeveloped. Scientists warn that the peace process may have unintended consequences for the country's climate and environment. (Reuters/Eliana Aponte) Download image

“If the peace agreement makes access to forest resources more feasible, deforestation rates and habitat fragmentation could spike,” the authors said. “As natural habitat is fragmented or lost, species will face elevated risks of population decline and extinction.”

Forest clearing has already increased since the peace agreement was signed. In 2016, deforestation jumped 44 percent in Colombia. The authors said it will be up to the government to balance ecosystem needs with the desire to utilize land that had been occupied by rebels for so long. They suggest increasing environmental monitoring to understand how ecosystems are changing and using that information to develop strategies for protecting the country’s natural resources.

“Based on other examples of political transitions, Colombia would benefit from thinking very carefully about what it wants its environmental future to look like and what sort of environmental stewardship needs to take place,” Dukes said.

Purdue’s Qianlai Zhuang, professor of agronomy and earth, atmospheric, and planetary sciences, and Maria Uribe, a graduate student in ecological sciences and engineering, were also authors on the paper and contributed to the organization of the 2016 meeting in Colombia. Funding for the project came from Universidad de Antioquia, Universidad Eafit, the Purdue Research Foundation, ICETEX, the Purdue Climate Change Research Center, the Colombia-Purdue Initiative and the Colombian Student Association at Purdue. Other partial funding was from Colciencias, the Ayudar Foundation from the University of Exeter’s College Benefactors and the U.S. Department of Agriculture’s National Institute of Food and Agriculture. 

Writer: Brian Wallheimer, 765-532-0233,

Source: Jeff Dukes, 765-496-3662, 


The ecology of peace: preparing Colombia for new political and planetary climates

Alejandro Salazar1,2, Adriana Sanchez3, Juan Camilo Villegas4, Juan F Salazar4, Daniel Ruiz Carrascal5,6, Stephen Sitch7, Juan Darío Restrepo8, Germán Poveda9, Kenneth J Feeley10, Lina M Mercado7,11, Paola A Arias4, Carlos A Sierra12, Maria del Rosario Uribe2,13, Angela M Rendón4, Juan Carlos Pérez14, Guillermo Murray Tortarolo7, Daniel Mercado-Bettin4, José A Posada4, Qianlai Zhuang2,13, and Jeffrey S Dukes1,2,15

  1.  Department of Biological Sciences, Purdue University, West Lafayette, IN
  2.  Purdue Climate Change Research Center, Purdue University, West Lafayette, IN
  3.  Programa de Biología, Facultad de Ciencias Naturales y Matemáticas, Universidad del Rosario, Bogotá, Colombia
  4.  Grupo GIGA, Escuela Ambiental, Facultad de Ingeniería, Universidad de Antioquia, Medellín, Colombia
  5.  Programa en Ingeniería Ambiental, Universidad EIA, Envigado, Colombia
  6.  International Research Institute for Climate and Society, Columbia University, New York, NY
  7.  College of Life and Environmental Sciences, University of Exeter, Exeter, UK
  8.  School of Sciences, Department of Earth Sciences, EAFIT University, Medellín, Colombia
  9.  Universidad Nacional de Colombia, Sede Medellín, Department of Geosciences and Environment, Facultad de Minas, Medellín, Colombia
  10.  Department of Biology, University of Miami, Coral Gables, FL
  11.  Centre for Ecology and Hydrology, Wallingford, UK
  12.  Max Planck Institute for Biogeochemistry, Jena, Germany
  13.  Department of Earth, Atmospheric and Planetary Sciences, Purdue University, West Lafayette, IN
  14.  Faculty of Sciences, National University of Colombia, Medellín, Colombia
  15.  Department of Forestry and Natural Resources, Purdue University, West Lafayette, IN

Colombia, one of the world’s most species-rich nations, is currently undergoing a profound social transition: the end of a decades-long conflict with the Revolutionary Armed Forces of Colombia, known as FARC. The peace agreement process will likely transform the country’s physical and socioeconomic landscapes at a time when humans are altering Earth’s atmosphere and climate in unprecedented ways. We discuss ways in which these transformative events will act in combination to shape the ecological and environmental future of Colombia. We also highlight the risks of creating perverse development incentives in these critical times, along with the potential benefits – for the country and the world – if Colombia can navigate through the peace process in a way that protects its own environment and ecosystems.

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