Report indicates Mexican monarch butterfly population at ten-year high, reasons unclear
February 2, 2019, 10:40:02 CET | Wikinews

Environment
Related articles


2 February 2019: Report indicates Mexican monarch butterfly population at ten-year high, reasons unclear
27 January 2019: Male Magellanic penguins pine for pairings: Wikinews interviews biologist Natasha Gownaris
12 January 2019: Scientists report correlation between locations of Easter Island statues and water resources
26 November 2018: US National Climate Assessment warns of climate-related damages to economy, ecosystems, human health
10 October 2018: UN Report on Global Warming calls for rapid 'unprecedented' changes globally to limit planetary warming to 1.5 degree C


Collaborate!

Pillars of Wikinews writing
Writing an article

Saturday, February 2, 2019 

The Center for Biological Diversity announced on Wednesday the monarch butterfly population counted over-wintering in Mexico was 144% greater than last year, with the highest overall population since the winter of 2006–2007. Scientists cautioned against an excess of optimism for the species.


Monarch butterflies in hibernation.Image: Brocken Inaglory.
Remarked Center for Biological Diversity scientist Tierra Curry, "This reprieve from bad news on monarchs is a thank-you from the butterflies to all the people who planted native milkweeds and switched to organic corn and soy products[...] But one good weather year won't save the monarch in the long run, and more protections are needed for this migratory wonder and its summer and winter habitats." Milkweed is the sole food of the monarch caterpillar.

According to ecologist Chip Taylor of the University of Kansas, last year's relatively cool temperatures in the insects' migration corridor kept them in the right place at the right time to lay eggs with a good chance of survival. He also said this is not likely to happen again next year. Ecologist Ryan Norris of the University of Guelph in Ontario also said human actions had little to do with the increased population.

Almost all of the monarch butterflies ranging across the continent, as far north as Canada, return to the same wintering area in central Mexico's oyamel fir forests every year. Scientists from the World Wildlife Fund Mexico estimate the population by observing the area turned orange by butterfly bodies on the trees. This year, the butterflies occupied roughly 6.05 hectares (14.95 acres; .0605 square km), up from 2.48 (6.12 acres) last year. The hibernation area was as large as 21 hectares in the 1990s and as low as under a hectare in 2014.

Factors cited for the drop in the monarch's overall population include habitat loss, loss of milkweed to agricultural herbicides, and use of insecticides.

The Center for Biological Diversity and Center for Food Safety requested monarch butterflies be given Endangered Species Act protections from the United States government in 2014. The decision is pending and expected in June of this year. George Kimbrell of the Center for Food Safety said "This year's count is a temporary reprieve that doesn't change what the law and science demands, which is that we protect monarchs under the Endangered Species Act before it's too late."






Have an opinion on this story? Share it!



Sources[edit]
Press release; Tierra Curry (contact). "Eastern Monarch Butterfly Population Rebounds: Ideal Weather Conditions Last Year Renew Hope for Beleaguered Butterfly" — Center for Biological Diversity, January 30, 2019
Associated Press. "Monarch butterfly population wintering in Mexico increases 144%" — The Guardian, January 30, 2019





Share this: 

Source: Wikinews
Share this article:
share article on facebook share article on twitter share article on google+ share article on tumblr share article on blogger share article on reddit

Articles that may interest you:


Floods in central China kill 25

Monday, July 26, 2021  Flooding on a street in Zhengzhou University Image: Sxr369. Fl...
Send us your articles and web-novels!
comments powered by Disqus
Most popular


Recently Viewed:


Report indicates Mexican monarch butterfly populatio...

Environment Related articles 2 February 2019: Report indicates Mexican monarch butterfly p...


Australian state of Victoria to enter five-day lockd...

Thursday, July 15, 2021  Australia Related articles 15 July 2021: Australian state of Vic...


United States: At least fifteen dead in Southern Cal...

Disasters and accidents Related articles 11 January 2018: United States: At least fifteen...


US toy retail giant Toys R Us files for bankruptcy i...

Thursday, September 21, 2017  Economy and business Related articles 21 September 2017...


Study estimates Earth has over three trillion trees

A study published yesterday by Nature estimates the global tree population at just over thre...

Automotive
Reviews | Technology | Projects & Tuning | Events | Racing
Business & Technology
Business & Economy | Mobile | Internet & Media | Security & Privacy | Gadgets & Tech | Software
Lifestyle
Health, Food & Fitness | Fashion | Gardening | DIY | Homes
Society
Accidents | Crime | Culture | Finance | Politics
Science & Environment
Wildlife | Green | Space
Gaming
Reviews
Society
Accidents | Crime | Culture | Finance | Politics
Travel
MM-iNEWS
Copyright & Privacy | Site Roadmap | Sitemap | Contact
Web Development @ OverHertz Ltd
Ω