Featured Research

from universities, journals, and other organizations

Global Warming's Effects Extend To World's Smallest Butterfly

Date:
August 8, 2005
Source:
Blackwell Publishing Ltd.
Summary:
A new study shows that human-induced global warming will accelerate the extinction of this species.

The latest issue of Conservation Biology examines the viability of theSinai baton blue and the results of human population pressures. Thestudy predicts that in the absence of global warming, grazing, andplant collection (three activities directly linked to humans) theworld's smallest butterfly would persist for at least 200 years.

The population could withstand small increases in grazing intensitythat would decrease their climate, but not increases in temperature. Asthe level of global warming raises its impact, extinction rapidlyaccelerates. This implies "... that there may be an annual averagetemperature, specific to each endangered species, above whichextinction becomes much more likely," authors Martin Hoyle and MikeJames state. There is no such threshold of grazing pressure.

The authors mapped the entire global range of this butterfly andobtained data on the intensity of livestock grazing. The Sinai batonblue is one of only two endemic animals in St. Katherine'sProtectorate, one of Egypt's most recently designated protected areas.Based on the authors' model, the effect of global warming on the chanceof extinction does not depend on the future level of habitatdestruction due to this grazing; the growing number of families thatlive on the protectorate keep a small herd of goats and sheep thatgraze on the plants the butterflies thrive on. Global warming is thedeadly culprit.

"If the areas of habitat patches individually fallbelow certain prescribed levels, the butterfly is likely to goextinct,"the authors conclude.

###

This study is published in theAugust issue of Conservation Biology. Media wishing to receive a PDF ofthis article please contact journalnews@bos.blackwellpublishing.net

Conservation Biology is a top-ranked journal in the fields of Ecologyand Environmental Science and has been called, "required reading forecologists throughout the world." It is published on behalf of theSociety for Conservation Biology.

Martin Hoyle is at the School of Biological and Chemical Sciences atthe University of Exeter, Hatherly Laboratories. He has performedresearch on metapopulation dynamics and has been published in numerousjournals.


Story Source:

The above story is based on materials provided by Blackwell Publishing Ltd.. Note: Materials may be edited for content and length.


Cite This Page:

Blackwell Publishing Ltd.. "Global Warming's Effects Extend To World's Smallest Butterfly." ScienceDaily. ScienceDaily, 8 August 2005. <www.sciencedaily.com/releases/2005/08/050805175531.htm>.
Blackwell Publishing Ltd.. (2005, August 8). Global Warming's Effects Extend To World's Smallest Butterfly. ScienceDaily. Retrieved August 21, 2014 from www.sciencedaily.com/releases/2005/08/050805175531.htm
Blackwell Publishing Ltd.. "Global Warming's Effects Extend To World's Smallest Butterfly." ScienceDaily. www.sciencedaily.com/releases/2005/08/050805175531.htm (accessed August 21, 2014).

Share This




More Earth & Climate News

Thursday, August 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

California Drought Stings Honeybees, Beekeepers

California Drought Stings Honeybees, Beekeepers

AP (Aug. 21, 2014) — California's record drought is hurting honey supplies and raising prices for consumers. The lack of rainfall means fewer crops and wildflowers that provide the nectar bees need to make honey. (Aug. 21) Video provided by AP
Powered by NewsLook.com
Thousands Of Species Found In Lake Under Antarctic Ice

Thousands Of Species Found In Lake Under Antarctic Ice

Newsy (Aug. 20, 2014) — A U.S. team found nearly 4,000 species in a subglacial lake that hasn't seen sunlight in millennia, showing life can thrive even under the ice. Video provided by Newsy
Powered by NewsLook.com
Unsustainable Elephant Poaching Killed 100K In 3 Years

Unsustainable Elephant Poaching Killed 100K In 3 Years

Newsy (Aug. 20, 2014) — Poachers have killed 100,000 elephants between 2010 and 2012, as the booming ivory trade takes its toll on the animals in Africa. Video provided by Newsy
Powered by NewsLook.com
Charter Schools Alter Post-Katrina Landscape

Charter Schools Alter Post-Katrina Landscape

AP (Aug. 20, 2014) — Nine years after Hurricane Katrina, charter schools are the new reality of public education in New Orleans. The state of Louisiana took over most of the city's public schools after the killer storm in 2005. (Aug. 20) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins