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Bumblebees are going extinct because of the climate crisis, but there are easy ways to help – CNN

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If those moments seem few and far between these days, it’s because in North America and Europe the effects of climate change have reduced the odds of seeing a bumblebee by more than 30% on average since the 20th century, according to a new study published Thursday in the journal Science.
Researchers from the University of Ottawa in Canada examined changes in the populations of 66 bumblebee species across the two continents, and compared that with climate changes in those locations.
Their findings highlighted that as climate change causes temperatures and precipitation to increase beyond what bumblebees can tolerate, so does their risk for extinction.
“The things [we] grew up with as kids are fading away very fast,” said Dr. Jeremy Kerr, senior author of the study and a biology professor at the University of Ottawa.
“It’s not just that we’re looking at what our kids will experience; it’s that we are looking back not even a full generation, just to when we were kids, and saying, ‘Could we take our children to places we loved and find what we found?’ What our study says is that that answer is no across entire continents.”

Populations are declining by the decade

The researchers evaluated changes in the presence and diversity of bumblebee species across North America and Europe using a database of around 550,000 records.
They estimated the distribution of the species across the two continents during two time periods: the first from 1901 to 1974, and the second from 2000 to 2015. They then examined whether the average monthly temperatures and total precipitation in the locations exceeded the bees’ tolerance level.
Bumblebees tend to prefer cooler, slightly wet climates in which there’s a variation in seasons. Declines in their populations are associated with increasing frequency of hotter temperatures and drying out of habitats, which raises bumblebees’ risk for extinction and diminishes their chances of colonizing a new area and creating more species.
The researchers found rapid and widespread declines in bumblebee populations across both continents. The likelihood that a bumblebee species would be present between 2000 and 2015 in the areas studied dropped by 46% in North America and 17% in Europe compared to the older period.
“Colonization is when an animal goes to a new place and there was no population of that animal there before, and it establishes a new population,” Kerr said. “If that’s happening a lot, then the species might be doing okay.”
“The amount of local extinctions we saw were eight times more common than these colonization events. Climate change is making these species disappear at a rate they couldn’t keep up with at all to replace themselves.”
Climate across the US and Europe has changed drastically due to human activity during the time periods the authors analyzed. In the past few hundred years, we have warmed the planet to 1.3 degrees Celsius — close to the 1.5 degrees that’s considered a critical warming threshold.
This has driven stronger and more widespread bumblebee declines than previously reported, the authors said.
The loss of bumblebees can contribute to decreasing biodiversity and impairment of ecosystem services, which impact food and water supply; the control of climate and disease; and supporting nutrient cycles and oxygen production.
Bumblebees pollinate plants such as cucumbers, tomatoes, squash, blueberries and melon.
“Bumblebees are among the best pollinators we have in the wildlife system,” said Peter Soroye, co-author and PhD candidate at the University of Ottawa. “[They’re] out for really long periods of the year in a lot of different weather conditions and they visit a really broad range of flowers. They’re really a critical piece of these natural landscapes that we like to enjoy.”
“Plants and crops that rely on pollination from bumblebees are likely to suffer if bumblebee populations continue to decline or vanish altogether, which could result in incredible consequences for the ecosystem,” said Haley Todd, director of programs and education at Planet Bee, a San Francisco non-profit focused on bee conservation. Todd was not involved in the study.

Helping bees survive climate change

Other factors that affect bumblebee populations are the widespread use of pesticides and changing land use that reduces flora available to them.
In the study, the effects of climate change on bumblebees were observed independent of these human practices, meaning if those are accounted for, too, the risk of extinction would be even greater.
“Interactions between these factors are expected to accelerate biodiversity loss for bumblebees and other [species] over broad areas,” the study said.
However, there are still “different and distinct conservation actions that can help combat these drivers of extinction,” Soroye said.
Those include reducing the use of pesticides, planting a diverse array of flowers and shrubs to prevent habitat loss and providing bumblebees with occasional shelter from the sun “during extreme weather events that they’re being subjected to more frequently because of climate change,” Soroye said.
Beekeepers can protect bumblebees from excessive sun and rain exposure by planting shrubs in addition to flowers, and by building hive shelters with roofs and surrounding protective materials such as wood.
The authors suspect that their findings can also be applied to other species facing extinction, such as butterflies and birds.
“There are things we can do and recovery is a feasible thing,” Kerr said. “We’re not saying that what we all need to do is immediately start living in a hut in the woods to recover the situation. It points to a hopeful direction if we choose to intervene.”

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Here’s how Helene and other storms dumped a whopping 40 trillion gallons of rain on the South

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More than 40 trillion gallons of rain drenched the Southeast United States in the last week from Hurricane Helene and a run-of-the-mill rainstorm that sloshed in ahead of it — an unheard of amount of water that has stunned experts.

That’s enough to fill the Dallas Cowboys’ stadium 51,000 times, or Lake Tahoe just once. If it was concentrated just on the state of North Carolina that much water would be 3.5 feet deep (more than 1 meter). It’s enough to fill more than 60 million Olympic-size swimming pools.

“That’s an astronomical amount of precipitation,” said Ed Clark, head of the National Oceanic and Atmospheric Administration’s National Water Center in Tuscaloosa, Alabama. “I have not seen something in my 25 years of working at the weather service that is this geographically large of an extent and the sheer volume of water that fell from the sky.”

The flood damage from the rain is apocalyptic, meteorologists said. More than 100 people are dead, according to officials.

Private meteorologist Ryan Maue, a former NOAA chief scientist, calculated the amount of rain, using precipitation measurements made in 2.5-mile-by-2.5 mile grids as measured by satellites and ground observations. He came up with 40 trillion gallons through Sunday for the eastern United States, with 20 trillion gallons of that hitting just Georgia, Tennessee, the Carolinas and Florida from Hurricane Helene.

Clark did the calculations independently and said the 40 trillion gallon figure (151 trillion liters) is about right and, if anything, conservative. Maue said maybe 1 to 2 trillion more gallons of rain had fallen, much if it in Virginia, since his calculations.

Clark, who spends much of his work on issues of shrinking western water supplies, said to put the amount of rain in perspective, it’s more than twice the combined amount of water stored by two key Colorado River basin reservoirs: Lake Powell and Lake Mead.

Several meteorologists said this was a combination of two, maybe three storm systems. Before Helene struck, rain had fallen heavily for days because a low pressure system had “cut off” from the jet stream — which moves weather systems along west to east — and stalled over the Southeast. That funneled plenty of warm water from the Gulf of Mexico. And a storm that fell just short of named status parked along North Carolina’s Atlantic coast, dumping as much as 20 inches of rain, said North Carolina state climatologist Kathie Dello.

Then add Helene, one of the largest storms in the last couple decades and one that held plenty of rain because it was young and moved fast before it hit the Appalachians, said University of Albany hurricane expert Kristen Corbosiero.

“It was not just a perfect storm, but it was a combination of multiple storms that that led to the enormous amount of rain,” Maue said. “That collected at high elevation, we’re talking 3,000 to 6000 feet. And when you drop trillions of gallons on a mountain, that has to go down.”

The fact that these storms hit the mountains made everything worse, and not just because of runoff. The interaction between the mountains and the storm systems wrings more moisture out of the air, Clark, Maue and Corbosiero said.

North Carolina weather officials said their top measurement total was 31.33 inches in the tiny town of Busick. Mount Mitchell also got more than 2 feet of rainfall.

Before 2017’s Hurricane Harvey, “I said to our colleagues, you know, I never thought in my career that we would measure rainfall in feet,” Clark said. “And after Harvey, Florence, the more isolated events in eastern Kentucky, portions of South Dakota. We’re seeing events year in and year out where we are measuring rainfall in feet.”

Storms are getting wetter as the climate change s, said Corbosiero and Dello. A basic law of physics says the air holds nearly 4% more moisture for every degree Fahrenheit warmer (7% for every degree Celsius) and the world has warmed more than 2 degrees (1.2 degrees Celsius) since pre-industrial times.

Corbosiero said meteorologists are vigorously debating how much of Helene is due to worsening climate change and how much is random.

For Dello, the “fingerprints of climate change” were clear.

“We’ve seen tropical storm impacts in western North Carolina. But these storms are wetter and these storms are warmer. And there would have been a time when a tropical storm would have been heading toward North Carolina and would have caused some rain and some damage, but not apocalyptic destruction. ”

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Follow AP’s climate coverage at https://apnews.com/hub/climate

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Follow Seth Borenstein on Twitter at @borenbears

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Associated Press climate and environmental coverage receives support from several private foundations. See more about AP’s climate initiative here. The AP is solely responsible for all content.

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‘Big Sam’: Paleontologists unearth giant skull of Pachyrhinosaurus in Alberta

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It’s a dinosaur that roamed Alberta’s badlands more than 70 million years ago, sporting a big, bumpy, bony head the size of a baby elephant.

On Wednesday, paleontologists near Grande Prairie pulled its 272-kilogram skull from the ground.

They call it “Big Sam.”

The adult Pachyrhinosaurus is the second plant-eating dinosaur to be unearthed from a dense bonebed belonging to a herd that died together on the edge of a valley that now sits 450 kilometres northwest of Edmonton.

It didn’t die alone.

“We have hundreds of juvenile bones in the bonebed, so we know that there are many babies and some adults among all of the big adults,” Emily Bamforth, a paleontologist with the nearby Philip J. Currie Dinosaur Museum, said in an interview on the way to the dig site.

She described the horned Pachyrhinosaurus as “the smaller, older cousin of the triceratops.”

“This species of dinosaur is endemic to the Grand Prairie area, so it’s found here and nowhere else in the world. They are … kind of about the size of an Indian elephant and a rhino,” she added.

The head alone, she said, is about the size of a baby elephant.

The discovery was a long time coming.

The bonebed was first discovered by a high school teacher out for a walk about 50 years ago. It took the teacher a decade to get anyone from southern Alberta to come to take a look.

“At the time, sort of in the ’70s and ’80s, paleontology in northern Alberta was virtually unknown,” said Bamforth.

When paleontogists eventually got to the site, Bamforth said, they learned “it’s actually one of the densest dinosaur bonebeds in North America.”

“It contains about 100 to 300 bones per square metre,” she said.

Paleontologists have been at the site sporadically ever since, combing through bones belonging to turtles, dinosaurs and lizards. Sixteen years ago, they discovered a large skull of an approximately 30-year-old Pachyrhinosaurus, which is now at the museum.

About a year ago, they found the second adult: Big Sam.

Bamforth said both dinosaurs are believed to have been the elders in the herd.

“Their distinguishing feature is that, instead of having a horn on their nose like a triceratops, they had this big, bony bump called a boss. And they have big, bony bumps over their eyes as well,” she said.

“It makes them look a little strange. It’s the one dinosaur that if you find it, it’s the only possible thing it can be.”

The genders of the two adults are unknown.

Bamforth said the extraction was difficult because Big Sam was intertwined in a cluster of about 300 other bones.

The skull was found upside down, “as if the animal was lying on its back,” but was well preserved, she said.

She said the excavation process involved putting plaster on the skull and wooden planks around if for stability. From there, it was lifted out — very carefully — with a crane, and was to be shipped on a trolley to the museum for study.

“I have extracted skulls in the past. This is probably the biggest one I’ve ever done though,” said Bamforth.

“It’s pretty exciting.”

This report by The Canadian Press was first published Sept. 25, 2024.

The Canadian Press. All rights reserved.

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The ancient jar smashed by a 4-year-old is back on display at an Israeli museum after repair

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TEL AVIV, Israel (AP) — A rare Bronze-Era jar accidentally smashed by a 4-year-old visiting a museum was back on display Wednesday after restoration experts were able to carefully piece the artifact back together.

Last month, a family from northern Israel was visiting the museum when their youngest son tipped over the jar, which smashed into pieces.

Alex Geller, the boy’s father, said his son — the youngest of three — is exceptionally curious, and that the moment he heard the crash, “please let that not be my child” was the first thought that raced through his head.

The jar has been on display at the Hecht Museum in Haifa for 35 years. It was one of the only containers of its size and from that period still complete when it was discovered.

The Bronze Age jar is one of many artifacts exhibited out in the open, part of the Hecht Museum’s vision of letting visitors explore history without glass barriers, said Inbal Rivlin, the director of the museum, which is associated with Haifa University in northern Israel.

It was likely used to hold wine or oil, and dates back to between 2200 and 1500 B.C.

Rivlin and the museum decided to turn the moment, which captured international attention, into a teaching moment, inviting the Geller family back for a special visit and hands-on activity to illustrate the restoration process.

Rivlin added that the incident provided a welcome distraction from the ongoing war in Gaza. “Well, he’s just a kid. So I think that somehow it touches the heart of the people in Israel and around the world,“ said Rivlin.

Roee Shafir, a restoration expert at the museum, said the repairs would be fairly simple, as the pieces were from a single, complete jar. Archaeologists often face the more daunting task of sifting through piles of shards from multiple objects and trying to piece them together.

Experts used 3D technology, hi-resolution videos, and special glue to painstakingly reconstruct the large jar.

Less than two weeks after it broke, the jar went back on display at the museum. The gluing process left small hairline cracks, and a few pieces are missing, but the jar’s impressive size remains.

The only noticeable difference in the exhibit was a new sign reading “please don’t touch.”

The Canadian Press. All rights reserved.

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