Quantcast
Environmental News for a Healthier Planet and Life

Help Support EcoWatch

Which Coffee Is Better for Biodiversity?

Popular

By Jason Daley

When coffee consumers think about the most sustainable way to manage their caffeine habit, they normally think about the cup it's in: Is it recyclable? But what about the coffee itself? Some coffee plantations require clear-cutting; will drinking one type of coffee have a bigger impact on the environment than another?


Coffee, it turns out, doesn't come from just one plant; there are two species of coffee that make it into pots around the world. Coffee cognoscenti insist on arabica beans, the species that tends to have a richer, smoother, more complex flavor. But in recent years, the second species, robusta, is having a renaissance, now accounting for 40 percent of the world coffee market.

Not only is it consumed in developing areas of the world, the brew is used to add extra caffeine to traditional Italian espresso and fill out commercial blends of ground coffee. Farmers love it too because it is less labor intensive and more insect-resistant. In the Western Ghats of India, the seventh-largest coffee producing nation in the world, many farmers are pulling out their finicky arabica bushes and planting robusta.

But sun-loving robusta requires growers to thin forests to let in more light. Shade-grown coffee plantations were known to be good habitat for forest birds since they leave the canopy intact. With the expansion of robusta plantations, researchers wondered if that habitat was at risk.

To solve the mystery, researchers from the Wildlife Conservation Society, Princeton and the University of Wisconsin-Madison, compared the bird biodiversity on arabica and robusta coffee plantations in the Western Ghats. The team gathered data on bird biodiversity on Western Ghats coffee plantations between 2013 and 2015. What they found was surprising. Both Arabica forests, which averaged a 95 percent canopy cover, and robusta farms, averaging an 80 percent canopy, were pretty good at supporting birds. According to the findings, published in Scientific Reports, 79 forest-dependent bird species utilized the plantations, including three of the International Union for Conservation of Nature's Red-Listed species: the Alexandrine parakeet, psittacula eupatria, grey-headed bulbul, pycnonotus priocephalus and the Nilgiri wood pigeon, Columba elphinstonii.

Alexandrine parakeet.Manish Kumarhoto

The study allays some concerns that robusta production dramatically degrades habitat and shows that coffee plantations can complement protected wildlife areas. That's especially important in a place like the Western Ghats, where only a small fraction of the land is legally protected. "An encouraging result of the study is that coffee production in the Western Ghats, a global biodiversity hotspot, can be a win-win for birds and farmers," lead author Charlotte Chang said in a statement.

Krithi Karanth, the Wildlife Conservation Society associate conservation scientist who conducted the surveys in the Western Ghats agroforests, says it's all about the trees. "The trees being there is key factor for taxa like birds," she says. "For endemic forest- dependent birds the trees being there has a positive influence."

Coffee plantations can't compare to undisturbed habitats—the non-farmed forests around them host 350 to 400 species. But Karanth says compared to two other agroforest products in the area, rubber and palm oil, coffee plantations are much better for wildlife. In a previous study in Frontiers in Ecology and Evolution, Karanth and her colleagues found that coffee plantations on average supported 60.5 species of birds, compared to rubber which supported 40.5 and palm oil which supports just 34.1 species.

That's good news for the Ghats and other places where shade grown coffee is still the norm. The story of coffee is not so hopeful elsewhere. In the last fifty years robusta and arabica growers alike have clearcut forests to grow coffee in full sun, which makes both species easier to harvest and more productive. According to one recent study, in 2010, 41 percent of coffee plantations in the world had no shade trees left whatsoever. Much of the deforestation has happened in Brazil and Vietnam, the world's two largest coffee producers, which grow their sun-drenched coffee for mass-produced, bulk, ground coffee.

So what is a coffee-dependent, wildlife-loving person to do? Karanth said consumers have the power to change things by only buying bird-friendly coffee, which usually has the added benefit of being friendly to amphibians, reptiles, mammals and insects as well. Rainforest Alliance Certified Coffee and Bird Friendly certification, developed by the Smithsonian Migratory Bird Center, are the most reliable indicators that coffee has been grown on a shaded plantation managed to benefit birds and caffeine seekers alike.

"As people become more conscious about the environmental impacts of coffee, they are willing to pay a little more for wildlife-friendly coffee," Karanth said. "I do think consumers can make a huge difference by opting to choose wildlife-friendly products."

Reposted with permission from our media associate SIERRA magazine.

EcoWatch Daily Newsletter

A scenic view of West Papua. Reza Fakhrudin / Pexels

By Arkilaus Kladit

My name is Arkilaus Kladit. I'm from the Knasaimos-Tehit tribe in South Sorong Regency, West Papua Province, Indonesia. For decades my tribe has been fighting to protect our forests from outsiders who want to log it or clear it for palm oil. For my people, the forest is our mother and our best friend. Everything we need to survive comes from the forest: food, medicines, building materials, and there are many sacred sites in the forest.

Read More Show Less
Everyone overthinks their lives or options every once in a while. Some people, however, can't stop the wheels and halt their train of thoughts. Peter Griffith / Getty Images

By Farah Aqel

Overthinkers are people who are buried in their own obsessive thoughts. Imagine being in a large maze where each turn leads into an even deeper and knottier tangle of catastrophic, distressing events — that is what it feels like to them when they think about the issues that confront them.

Read More Show Less
A newly developed catalyst would transform carbon dioxide from power plants and other sources into ethanol. DWalker44 / E+ / Getty Images

Researchers at the Department of Energy's Argonne National Laboratory have discovered a cheap, efficient way to convert carbon dioxide into liquid fuel, potentially reducing the amount of new carbon dioxide pumped into the atmosphere.

Read More Show Less
Eureka Sound on Ellesmere Island in the Canadian Arctic taken by NASA's Operation IceBridge in 2014. NASA / Michael Studinger / Flickr / CC by 2.0

A 4,000-year-old ice shelf in the Canadian Arctic has collapsed into the sea, leaving Canada without any fully intact ice shelves, Reuters reported. The Milne Ice Shelf lost more than 40 percent of its area in just two days at the end of July, said researchers who monitored its collapse.

Read More Show Less
Teachers and activists attend a protest hosted by Chicago Teachers Union in Chicago, Illinois on Aug. 3, 2020 to demand classroom safety measures as schools debate reopening. KAMIL KRZACZYNSKI / AFP via Getty Images

The coronavirus cases surging around the U.S. are often carried by kids, raising fears that the reopening of schools will be delayed and calling into question the wisdom of school districts that have reopened already.

Read More Show Less
Prime Minister Jacinda Ardern holds up COVID-19 alert levels during a press conference at Parliament on March 21, 2020 in Wellington, New Zealand. Hagen Hopkins / Getty Images

By Michael Baker, Amanda Kvalsvig and Nick Wilson

On Sunday, New Zealand marked 100 days without community transmission of COVID-19.

Read More Show Less

Trending

Medics with Austin-Travis County EMS transport a nursing home resident with coronavirus symptoms on Aug. 3, 2020 in Austin, Texas. John Moore / Getty Images

The U.S. passed five million coronavirus cases on Sunday, according to data from Johns Hopkins University, just 17 days after it hit the four-million case mark.

Read More Show Less