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Protecting One-Fifth of Earth's Land Could Save Two-Thirds of Plant Species
Protecting key regions that comprise just 17 percent of Earth’s land may help preserve more than two-thirds of its plant species, according to a new Duke University-led study by an international team of scientists.
The researchers from Duke, North Carolina State University and Microsoft Research used computer algorithms to identify the smallest set of regions worldwide that could contain the largest numbers of plant species. They published their findings yesterday in the journal Science.
“Our analysis shows that two of the most ambitious goals set forth by the 2010 Convention on Biological Diversity—to protect 60 percent of Earth’s plant species and 17 percent of its land surface—can be achieved, with one major caveat,” said Stuart L. Pimm, Doris Duke professor of conservation ecology at Duke’s Nicholas School of the Environment.
“To achieve these goals, we need to protect more land, on average, than we currently do, and much more in key places such as Madagascar, New Guinea and Ecuador,” Pimm said. “Our study identifies regions of importance. The logical—and very challenging—next step will be to make tactical local decisions within those regions to secure the most critical land for conservation.”
Plant species aren’t haphazardly distributed across the planet. Certain areas, including Central America, the Caribbean, the Northern Andes and regions in Africa and Asia have much higher concentrations of endemic species, that is, those which are found nowhere else.
“Species endemic to small geographical ranges are at a much higher risk of being threatened or endangered than those with large ranges," said Lucas N. Joppa, a conservation scientist at Microsoft Research’s Computational Science Laboratory in Cambridge, UK. "We combined regions to maximize the numbers of species in the minimal area. With that information, we can more accurately evaluate each region’s relative importance for conservation, and assess international priorities accordingly.”
To identify which of Earth’s regions contain the highest concentrations of endemic species, relative to their geographic size, the researchers analyzed data on more than 100,000 different species of flowering plants, compiled by the Royal Botanic Gardens in Kew, England.
Joppa and Piero Visconti, also of Microsoft Research’s Computational Science Laboratory, created and ran the complex algorithms needed to analyze the large spatial database.
Based on their computations, Clinton N. Jenkins, a research scholar at North Carolina State University, created a color-coded global map identifying high-priority regions for plant conservation, ranked by endemic species density.
“We also mapped where the greatest numbers of small-ranged birds, mammals and amphibians occur, and found that they are broadly in the same places we show to be priorities for plants,” Jenkins said. “So preserving these lands for plants will benefit many animals, too.”
Without having access to the Royal Botanic Gardens’ plant database, which is one of the largest biodiversity databases in the world, the team would not have been able to conduct their analysis, said Joppa, who received his Ph.D. in ecology from Duke in 2009.
Pimm and Jenkins lead the conservation nonprofit Saving Species, which works with local communities and international agencies to purchase and protect threatened lands that are critical for biodiversity.
“The fraction of land being protected in high-priority regions increases each year as new national parks are established and greater autonomy is given back to indigenous peoples to allow them to manage their traditional lands,” Pimm said. “We’re getting tantalizingly close to achieving the Convention of Biological Diversity’s global goals. But the last few steps remaining are huge ones.”
Visit EcoWatch’s BIODIVERSITY page for more related news on this topic.
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‘Companies Should Not Be Allowed to Use Hazardous Ingredients in Products People Use’: Michelle Pfeiffer Speaks Up for Safer Cosmetics
The beauty products we put on our skin can have important consequences for our health. Just this March, the U.S. Food and Drug Administration (FDA) warned that some Claire's cosmetics had tested positive for asbestos. But the FDA could only issue a warning, not a recall, because current law does not empower the agency to do so.
Michelle Pfeiffer wants to change that.
The actress and Environmental Working Group (EWG) board member was spotted on Capitol Hill Thursday lobbying lawmakers on behalf of a bill that would increase oversight of the cosmetics industry, The Washington Post reported.
By Julia Conley
Scientists at the United Nations' intergovernmental body focusing on biodiversity sounded alarms earlier this month with its report on the looming potential extinction of one million species — but few heard their calls, according to a German newspaper report.
The climate crisis is a major concern for American voters with nearly 40 percent reporting the issue will help determine how they cast their ballots in the upcoming 2020 presidential election, according to a report compiled by the Yale Program on Climate Change Communication.
Of more than 1,000 registered voters surveyed on global warming, climate and energy policies, as well as personal and collective action, 38 percent said that a candidate's position on climate change is "very important" when it comes to determining who will win their vote. Overall, democratic candidates are under more pressure to provide green solutions as part of their campaign promises with 64 percent of Democrat voters saying they prioritize the issue compared with just 34 percent of Independents and 12 percent of Republicans.
President Donald Trump has agreed to sign a $19.1 billion disaster relief bill that will help Americans still recovering from the flooding, hurricanes and wildfires that have devastated parts of the country in the past two years. Senate Republicans said they struck a deal with the president to approve the measure, despite the fact that it did not include the funding he wanted for the U.S.-Mexican border, CNN reported.
"The U.S. Senate has just approved a 19 Billion Dollar Disaster Relief Bill, with my total approval. Great!" the president tweeted Thursday.
"There was a lot of devastation throughout the state," Governor Mike Parson said at a Thursday morning press conference, as NPR reported. "We were very fortunate last night that we didn't have more injuries than what we had, and we didn't have more fatalities across the state. But three is too many."