Quantcast
Environmental News for a Healthier Planet and Life

347 Native Bee Species 'Spiraling Toward Extinction'

Popular
347 Native Bee Species 'Spiraling Toward Extinction'

In the first comprehensive review of the more than 4,000 native bee species in North America and Hawaii, the Center for Biological Diversity has found that more than half the species with sufficient data to assess are declining. Nearly one in four is imperiled and at increasing risk of extinction.

The new analysis, Pollinators in Peril: A systematic status review of North American and Hawaiian native bees, revealed that more than 700 species are in trouble from a range of serious threats, including severe habitat loss and escalating pesticide use.

"The evidence is overwhelming that hundreds of the native bees we depend on for ecosystem stability, as well as pollination services worth billions of dollars, are spiraling toward extinction," said Kelsey Kopec, a native pollinator researcher at the Center for Biological Diversity and author of the study. "It's a quiet but staggering crisis unfolding right under our noses that illuminates the unacceptably high cost of our careless addiction to pesticides and monoculture farming.

"The widespread decline of European honeybees has been well documented in recent years. But until now much less has been revealed about the 4,337 native bee species in North America and Hawaii. These mostly solitary, ground-nesting bees play a crucial ecological role by pollinating wild plants and provide more than $3 billion in fruit-pollination services each year in the United States.

The key findings:

  • Among native bee species with sufficient data to assess (1,437), more than half (749) are declining. (Click here to see a list of the bees as well as their status and geographic range).
  • Nearly one in four (347 native bee species) is imperiled and at increasing risk of extinction.
  • Many of the bee species lacking sufficient data are also likely declining or at risk of extinction, highlighting the urgent need for additional research.
  • The declines are caused primarily by habitat loss, heavy pesticide use, climate change and urbanization.

These troubling findings come as a growing body of research has revealed that more than 40 percent of insect pollinators are highly threatened globally, including many of the native bees critical to unprompted crop and wildflower pollination across the U.S.

To assess current population trends and threats as comprehensibly as possible for the 4,337 described species of North American and Hawaiian bees, Center for Biological Diversity staff reviewed the current conservation status of 316 species as established by state, federal or independent research. We then conducted a comprehensive review of all available literature on native bees to determine a status for an additional 1,121 species.

"We're on the verge of losing hundreds of native bee species in the United States if we don't act to save them," said Kopec, who spent more than a year analyzing the data. "Almost 90 percent of wild plants are dependent on insect pollination. If we don't act to save these remarkable creatures, our world will be a less colorful and more lonesome place."

The assessment highlights five imperiled native bees that offer a vivid snapshot of the unchecked threats driving declines in many native bee species:

Yellow carpet solitary bee: This dark, olive-green bee, whose fate is intertwined with its floral host and California's dwindling vernal pools, is severely threatened with extinction.

Sunflower leafcutting bee: This spectacularly large bee used to be seen patrolling sunflower stands throughout the Great Plains; it is now in steep decline and rarely seen.

Wild sweet potato bee: Known for its unique three-lobed snout, this bee, once commonly seen foraging across much of the East, is now dangerously imperiled.

Gulf Coast solitary bee: Completely dependent on the disappearing coastal plain honeycombhead plant and the barrier-island sand dunes where it nests, this bee is now found only within a shrinking portion of its range along the Gulf Coast.

Macropis cuckoo bee: This nest invader, which takes over the nests of other bee species to lay its eggs, was once common across much of central and eastern North America but is now considered that region's most endangered bee.

Ningaloo Reef near Exmouth on April 2, 2012 in Western Australia. James D. Morgan / Getty Images News

By Dana M Bergstrom, Euan Ritchie, Lesley Hughes and Michael Depledge

In 1992, 1,700 scientists warned that human beings and the natural world were "on a collision course." Seventeen years later, scientists described planetary boundaries within which humans and other life could have a "safe space to operate." These are environmental thresholds, such as the amount of carbon dioxide in the atmosphere and changes in land use.

Read More Show Less

EcoWatch Daily Newsletter

A 3-hour special film by EarthxTV calls for protection of the Amazon and its indigenous populations. EarthxTV.org

To save the planet, we must save the Amazon rainforest. To save the rainforest, we must save its indigenous peoples. And to do that, we must demarcate their land.

Read More Show Less

Trending

UN Secretary General Antonio Guterres delivers a video speech at the high-level meeting of the 46th session of the United Nations Human Rights Council UNHRC in Geneva, Switzerland on Feb. 22, 2021. Xinhua / Zhang Cheng via Getty Images

By Anke Rasper

"Today's interim report from the UNFCCC is a red alert for our planet," said UN Secretary General Antonio Guterres.

The report, released Friday, looks at the national climate efforts of 75 states that have already submitted their updated "nationally determined contributions," or NDCs. The countries included in the report are responsible for about 30% of the world's global greenhouse gas emissions.

Read More Show Less
New Delhi's smog is particularly thick, increasing the risk of vehicle accidents. SAJJAD HUSSAIN / AFP via Getty Images

India's New Delhi has been called the "world air pollution capital" for its high concentrations of particulate matter that make it harder for its residents to breathe and see. But one thing has puzzled scientists, according to The Guardian. Why does New Delhi see more blinding smogs than other polluted Asian cities, such as Beijing?

Read More Show Less
A bridge over the Delaware river connects New Hope, Pennsylvania with Lambertville, New Jersey. Richard T. Nowitz / Getty Images

In a historic move, the Delaware River Basin Commission (DRBC) voted Thursday to ban hydraulic fracking in the region. The ban was supported by all four basin states — New Jersey, Delaware, Pennsylvania and New York — putting a permanent end to hydraulic fracking for natural gas along the 13,539-square-mile basin, The Philadelphia Inquirer reported.

Read More Show Less