Subscribe

Drought-sensitive butterflies could be extinct in UK by 2050

The average global temperature on Earth has increased by 0.8 degrees Celsius (1.4 degrees Fahrenheit) since 1880. Two-thirds of the warming has occurred since 1975.

  • close
    Georgia Ball Keely, 4, smiles as a Malachite butterfly lands on her face during a media opportunity at the Natural History Museum in London, Tuesday, March 31, 2015.
    Kirsty Wigglesworth/AP/File
    View Caption
  • About video ads
    View Caption
of

Climate change may have a widespread effect on butterfly populations in Britain if conservationists don’t act soon. A new study published Monday warns that a continuing rise in global temperatures could cause permanent damage.

“…widespread drought-sensitive butterfly population extinctions could occur as early as 2050,” scientists reported in the journal Nature Climate Change. 

The study found that butterfly species that are especially sensitive to drought are most likely to experience a sharp population decrease during dry spells. And, as the Earth warms, these species are more likely to go extinct due to climate change. According to NASA, the average global temperature on Earth has increased by 0.8 degrees Celsius (1.4 degrees Fahrenheit) since 1880. Two-thirds of the warming has occurred since 1975.

As Agence France-Presse (AFP) reported, scientists led by Tom Oliver of the NERC Center of Ecology and Hydrology in Britain examined data from 129 sites to see how 28 species responded to a severe drought in 1995. The results? Crushing population depletion.

The study looked at six different British butterfly species and found that the species hardest hit were the Pieris brassicae with a 60% population collapse and the Peiris rapae at 56% depleted. Scientists believe the data is a result of both climate change and extreme weather events spurred by these changes:

“There is strong evidence that climate change will have increasingly large impacts on biodiversity. This is especially so from increases in the frequency of extreme events, although the impacts of these have been less studied than responses to gradual change in climatological means. Species responses to climate can be highly nonlinear, with threshold effects of extreme weather events, and in particular droughts, causing population collapse.”

In a critical finding, the researchers discovered a direct link between landscape and recovery: the more fragmented the habitat, the longer it took for populations to revive.

“Conservationists increasingly recognize the importance of reducing fragmentation of natural habitats rather than simply managing protected ‘islands’ in a hostile landscape of intensive farming,” Mr. Oliver told AFP by email.

Scientists say there are ways to stem the tide. If people use land efficiently they can maximize conservation benefits with minimum impact on other land uses such as food and energy production. However, to ensure survival of drought-sensitive species through the entire twenty-first century, a combination of major emissions reductions along with significant reductions in habitat fragmentations is required. 

Recommended: 10 organizations that protect the environment

And you can contribute. Carbon Offsets to Alleviate Poverty offers some tips for drivers looking to cut their carbon emissions. 

  • Alternatives to driving. When possible, walk or ride your bike in order to avoid carbon emissions completely. 
  • Driving style. Speeding and unnecessary acceleration reduce mileage by up to 33%, waste gas and money, and increase your carbon footprint.
  • Tire inflation and other tuning. Properly inflated tires improve your gas mileage by up to 3%. 
  • Avoid traffic. Being stuck in traffic wastes gas and unneccessarily creates CO2. Use traffic websites and apps and go a different way or wait.
  • Combine errands to make fewer trips. Remove excess weight from your car. Use cruise control.
About these ads
Sponsored Content by LockerDome
 
 
Make a Difference
Inspired? Here are some ways to make a difference on this issue.
FREE Newsletters
Get the Monitor stories you care about delivered to your inbox.
 

We want to hear, did we miss an angle we should have covered? Should we come back to this topic? Or just give us a rating for this story. We want to hear from you.

Loading...

Loading...

Loading...

Save for later

Save
Cancel

Saved ( of items)

This item has been saved to read later from any device.
Access saved items through your user name at the top of the page.

View Saved Items

OK

Failed to save

You reached the limit of 20 saved items.
Please visit following link to manage you saved items.

View Saved Items

OK

Failed to save

You have already saved this item.

View Saved Items

OK