State of the world's birds is bleak but not hopeless | Science Matters | David Suzuki Foundation
Photo: State of the world's birds is bleak but not hopeless

Many threatened birds are common species, including turtle doves, meadowlarks, barn swallows and purple martins. (Credit: Linda Tanner via Flickr)

By David Suzuki with contributions from Ian Hanington, Communications Manager

We can't live without birds. Beyond being fascinating and beautiful, they play a crucial role in keeping the world habitable for all life, including people. They disperse seeds, pollinate plants, control insects, provide food and are indicators of the overall health of ecosystems. They also create recreational and economic opportunities, through the immense popularity of birdwatching.

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So we should be concerned about the findings of the report, "State of the world's birds: indicators for our changing world": One in eight — or 1,313 — species of Earth's birds is in danger of disappearing.

"The status of the world's birds is deteriorating, with species slipping ever faster towards extinction," notes the assessment by Birdlife International, a global partnership of conservation organizations. This represents rapid acceleration of a troubling trend: 151 bird species are believed to have gone extinct since 1500.

But the study, released at Birdlife International's 2013 Congress in Ottawa, offers hope: "An annual investment of US$4 billion, used wisely, could improve the status of all known threatened species and virtually halt human-driven extinctions. A further US$76 billion could effectively protect and manage all known sites of global conservation significance. These sums are insignificant in comparison with both the size of the global economy (roughly US$70 trillion per year) and an estimate of the total value of ecosystem services delivered by nature each year (US$22-US$74 trillion)."

Many threatened birds are common species, including turtle doves, meadowlarks, barn swallows and purple martins. In Canada, insectivores, grassland birds and Arctic shorebirds have been declining rapidly since 1970, all because of human activity. But conservation efforts, including regulating pesticides such as DDT, have helped some raptor and waterfowl populations bounce back.

Sadly, we're to blame for the current plight of birds. The report shows industrial-scale agriculture, logging and invasive species are the gravest immediate dangers. It also concludes climate change is an "emerging and increasingly serious threat to species" and "often exacerbates existing threats." Among other problems, a warming planet changes migration and nesting schedules, hindering birds' ability to find insects to eat. It also damages habitat.

One solution for safeguarding bird populations is to ensure habitats critical to their survival — known as Important Bird Areas, or IBAs — are protected, through legislation if necessary. That doesn't mean shutting out human activity, just managing these areas in ways that allow birds to survive and thrive.

As the report shows, investing in conservation comes with benefits beyond helping birds. The more than 12,000 IBAs identified worldwide offer valuable ecosystem services, such as regulating climate and air quality, purifying water and preventing floods, maintaining genetic diversity, providing food and medicines and creating recreation and tourism opportunities.

Education is another component of protecting birds and all threatened plants and animals. As we better understand our connection to nature, the importance of biodiversity and the value of services healthy ecosystems provide, we'll make conservation and biodiversity higher priorities in our decision-making, which will lead to wiser development.

While the BirdLife study identifies climate change as a major threat, it also notes the challenge in balancing environmental factors in energy-project development. Critics oppose wind power because of potential harm to birds, but bird deaths; from windmills are minimal compared to those caused by fossil fuels, climate change, pesticides, highrise buildings, automobile collisions and house cats. A National University of Singapore study shows fossil fuel power generation kills 17 times as many birds per gigawatt-hour of electricity as wind power. And wind farm problems can be overcome with proper siting and improved design. In the Rift Valley/Red Sea flyway, an important area for birds migrating between Eurasia and Africa, BirdLife developed research materials and a web-based tool to map flight patterns and identify places where wind installations should be avoided to keep birds safer.

Plummeting bird populations reflect the state of the global environment — but it's not too late to do something. As Leon Bennun, BirdLife's director of science, information and policy, says, "Effective nature conservation is affordable and it works. It's time to make it happen. The result will be a world that is in every way wealthier and healthier — and that remains diverse and beautiful too."

We need birds. Let's do all we can to avert an extinction catastrophe.

July 11, 2013
http://www.davidsuzuki.org/blogs/science-matters/2013/07/state-of-the-worlds-birds-is-bleak-but-not-hopeless/

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4 Comments

Jul 14, 2013
12:41 PM

Birds and many other species, including us, depend on insects and they have been almost completely eliminated, certainly in built up areas of North America. I will tell you what the toxin is if I am assured that you won’t cut and run. It does take courage to face down a colossus.

Jul 12, 2013
8:15 AM

The change from an old, benign method of aquaculture, to newer industrialization of shellfish farming in Burley Lagoon, Pierce Co.Washington, has coincided with the disappearance of the many birds we considered integral to the Lagoon’s ecology. We suggest that removing potential predators from the sediment in preparation for industrial expansion, and addition of geoduck farming, removed the food resources for the great blue herons, eagles, and even the gulls who used to flock to our Lagoon. Where we would see 10 herons, we only see one or two juveniles and not daily. The State does not have funds to continue bird counting, so it is up to private citizens to alert government to these changes.

Jul 12, 2013
7:10 AM

I’m surprised light pollution is not mentioned as a factor in this article. I have recently tried to launch a campaign in our neighbourhood to get rid of street lamps and only use house lighting that is movement activated on areas of particular concern and down lighting. It was not met with enthusiasm apart from a few. Mostly people worried about their safety. Given that street lighting according to some brief research I did looking at statistics, does very little in regards to security, it is very frustrating to change the usual belief that it does. The lighting disturbs flight and nesting for birds, insects and bats. I wish there was more education around this. Our municipality in Saanich has little response to my letters. I wish there was a public campaign that educated people and politicians on this matter.

Jul 11, 2013
9:24 PM

Dr. Suzuki, I wish our brothers and sisters would tell our children the whey you have been doing for 40 odd yr.s…God Bless you and your work for a better Earth and Man… ” thank you”

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