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Biodiversity battle

Shant ShahrigianNovember 21, 2012

Biodiversity is a vital part of lowering carbon emissions - but an overlooked one, according to forest experts. In a paper for the upcoming UN conference on climate change in Doha, they call for a new point of view.

Three toucans are seen in a cage in an illegal zoo that authorities found in a house of Guatemala City, Guatemala, on 12 March 2010. Dozens of birds, monkeys, deers and other endangered species from Guatemala, Honduras and other countries were seized by authorities. EPA/Ulises Rodriguez +++(c) dpa - Bildfunk+++
Image: picture alliance/dpa

Consider the toucan. The South American bird is beloved around the world for its vibrant beak and proud posture. It is actually known to benefit from deforestation, because it flocks to the kinds of open land that is created when trees are cut down.

Other species are not so lucky. Widespread deforestation is depriving many creatures of their native habitats. Worse still, efforts to reforest land are not always effective. Once animals are driven out, it's hard to bring them back. That has far-reaching consequences, according to a groundbreaking report that the International Union of Forest Research Organizations (IUFRO) is to present at the climate talks in Doha, Qatar.

"We found out that biodiversity is a key determinant of forest ability to sequester and store carbon," said Christoph Wildburger, Coordinator of an IUFRO-led initiative called the Global Forest Expert Panels.

A verdant Bolivian valley
The report calls for a more thoughtful approach to reforestation

Biodiversity's benefits

The new report delves into previously uncharted territory, investigating the connections between biodiversity, forests, carbon emissions and human beings. It argues that the less biodiversity there is in a forest, the poorer job the forest will do of absorbing carbon gas.

The reason isn't simply that decreased biodiversity means fewer bees to pollinate flowers. Rather, they chart out an elaborate system of effects that biodiversity has on a forest's health.

Basically, the more diverse and interconnected the species in a forest are, the healthier the forest will be. And healthy forests mean a whole range of benefits, such as food, water, erosion control – and the removal of carbon from the atmosphere.

"If you have a certain area of forest breaking down because it lost a certain amount of biodiversity, you will lose carbon storage," Wildburger told DW in an interview. If "a forest system will lose its stability, then you will lose a lot of ecosystem services – maybe also carbon sequestration."

Titel/Title: Workers at Armenia Tree Project's Karin nursery Schlagworte/Keywords: Armenia, trees, reforestation, Karin, conservation Wer hat das Bild gemacht/Fotograf? / Who is the photographer: Shant Shahrigian Wann wurde das Bild gemacht? / When was the picture taken: Oct. 5, 2012 Wo wurde das Bild aufgenommen? / Where was the picture taken: Karin, Armenia Bildbeschreibung: Bei welcher Gelegenheit / in welcher Situation wurde das Bild aufgenommen? Wer oder was ist auf dem Bild zu sehen? / What are we seeing in this picture? Who are we seeing? Employees of Armenia Tree Project's Karin nursery loosen soil with their hoes. Bildrechte: (Grundsätzlich nur eine Variante möglich, Nichtzutreffendes bitte löschen.) - Es handelt sich um ein durch einen Verlag, ein Unternehmen oder eine Institution bereitgestelltes Bild (außer eine Bild-Agentur, mit der die DW einen Rahmenvertrag abgeschlossen hat): Angabe der Quelle/des Zulieferers: Rechteeinräumung: Hiermit räume ich der Deutschen Welle das Recht ein, das/die von mir bereitgestellte/n Bild/er zeitlich zu nutzen. Ich versichere, dass ich das/die Bild/er selbst gemacht habe und dass ich die hier übertragenen Rechte nicht bereits einem Dritten zur exklusiven Nutzung eingeräumt habe. / With this form, I give Deutsche Welle the right to use these images. I confirm that I created these images and the rights do not belong to a third party. Shant Shahrigian Freelance reporter and multimedia editor
Involving locals could have many benefitsImage: Shant Shahrigian

Call for action

Wild species are not the only animals discussed in the report, which is titled "Understanding Relationships Between Biodiversity, Carbon, Forests and People: The key to achieving REDD+ objectives."

The paper also calls for policy makers to "add people to the picture" when pursuing REDD+ aims, a set of UN goals to reduce greenhouse gases from deforestation through financial goads. Wildburger pointed to a project in Tanzania as a successful case of involving locals in the fight against carbon emissions.

After swathes of trees were cut in the northern region of Shinyanga, locals banded together to use traditional means of reforestation. According to the report, the area had been "dramatically transformed" by 2000 – with benefits to the environment and locals alike.

Kiefernwald in Sweden. [en] Scots Pine (Pinus sylvestris). Forest in Sweden. | SWE, 2009: Scots Pine (Pinus sylvestris). Forest in Sweden.
Expectations are mixed ahead of the Doha conferenceImage: picture alliance/WILDLIFE

"They got more supplies from different forest goods and services," Wildburger said, "and at the same time there were a lot of carbon benefits because a lot of trees were planted. That's quite a good example of a win-win situation."

As of this summer, 75 countries had joined a partnership to support or implement the REDD+ goals, according to reddpluspartnership.org. The IUFRO report will get its hearing on Dec. 2 in Doha.