Waterbirds flock to well-run countries, new study shows

©2015 Igor Perezh
A Tricolored Heron hunts in Everglades National Park, Florida. Photo ©2015 Igor Perezh

A country’s citizens aren’t the only ones to benefit from living in a place that’s run well. In a new study, a team of scientists reports that the most important factor that determines the conservation status of waterbird species is how effectively a country is managed.

“Political instability can weaken legal enforcement, and consequently promote unsuitable, often illegal, killing even in protected areas,” Tatsuya Amano, a conservation biologist at Cambridge University in the U.K., said in a statement. “Although the global coverage of protected areas continues to increase, our findings suggest that ineffective governance could undermine the benefits of these biodiversity conservation efforts.”

Amano is the lead author of a paper published December 20 in the journal Nature.

Conservation scientists have long understood that efforts to protect wildlife are harder to get off the ground in poorly run countries. But until now, they didn’t have enough data to zero in on an identifiable trend.

To tackle that problem, Amano and her colleagues tabulated yearly totals of more than 460 waterbird species from nearly 26,000 spots across the globe, looking into how species’ numbers fluctuated between 1990 and 2013.

The team then compared those changes in waterbird abundance with a dataset from the World Bank called the Worldwide Governance Indicators, which measures factors related to how countries are managed, such as corruption levels and the selection process for leaders.

Crab Plovers and Eurasian Whimbrel flock to Bar Al Hikmann, a critically important coastal wetland in Oman. These intertidal flats and associated salt flats in Oman are recognized as one of most critically important wetlands for waterbirds in the West Asia/East African Flyway. Photo by Taej Mundkur
Crab Plovers and Eurasian Whimbrel flock to Bar Al Hikmann, a critically important coastal wetland in Oman. These intertidal flats and associated salt flats in Oman are recognized as one of most critically important wetlands for waterbirds in the West Asia/East African Flyway. Photo by Taej Mundkur

Their analysis showed, for the first time, that if a country is governed well, it was more likely to have higher bird numbers. What’s more, in those places, conservation efforts were more likely to succeed. This factor had a bigger influence on the bird populations studied than climate change or spikes in the number of people in a given country.

In nations with management issues, particularly in parts of Asia, South America, and Africa, bird numbers have dipped more than in their better-run counterparts in Europe, though even there, many species appear to be trending downward.

Poor governance has likely led to damaged important wetland or the loss of watery habitats altogether in several spots, the authors write. Lax hunting laws, too, might be helping drag down the numbers of waterbirds, which include ducks, flamingos, and pelicans.

The researchers also found that a quickly rising GDP — or gross domestic product, a measure of the value of a country’s economy — was linked to larger drops in bird numbers.

The authors chose waterbirds because of the copious data available on them, collected by groups such as Wetlands International and the National Audubon Society. The wetlands that many of them depend on are also important for humans because they provide services such as clean water, habitat for fish, and protection of coastal areas, but they’ve also been negatively impacted by humans more than other ecosystems. As a result, waterbirds serve as indicators of the pressure that mismanaged countries are likely having on other types of wildlife.

“Our study shows that waterbird monitoring can provide useful lessons about what we need to do to halt the loss of biodiversity,” Szabolcs Nagy, an ecologist with Wetlands International and an author of the paper, said in the statement.

Read the study

Amano, T., Székely, T., Sandel, B., Nagy, S., Mundkur, T., Langendoen, T., … Sutherland, W. J. (2017). Successful conservation of global waterbird populations depends on effective governance. Nature. Retrieved from http://dx.doi.org/10.1038/nature25139

This article was first published by Mongabay.com on December 29, 2017. Republished under a Creative Commons license. 

 

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