Navigation Links
Scientists count penguins from space
Date:4/13/2012

A new study using satellite mapping technology reveals there are twice as many emperor penguins in Antarctica than was previously thought. The results provide an important benchmark for monitoring the impact of environmental change on the population of this iconic bird.

Reporting this week in the journal PLoS ONE, an international team of scientists describe how they used Very High Resolution (VHR) satellite images to estimate the number of penguins at each colony around the coastline of Antarctica. Using a technique known as pan-sharpening to increase the resolution of the satellite imagery, the science teams were able to differentiate between birds, ice, shadow and penguin poo (guano). They then used ground counts and aerial photography to calibrate the analysis. These birds breed in areas that are very difficult to study because they are remote and often inaccessible with temperatures as low as - 50C (- 58 degrees Fahrenheit).

Lead author and geographer Peter Fretwell at British Antarctic Survey (BAS) which is funded by the UK's Natural Environment Research Council (NERC) explains, "We are delighted to be able to locate and identify such a large number of emperor penguins. We counted 595,000 birds, which is almost double the previous estimates of 270,000 - 350,000 birds. This is the first comprehensive census of a species taken from space."

On the ice, emperor penguins with their black and white plumage stand out against the snow and colonies are clearly visible on satellite imagery. This allowed the team to analyze 44 emperor penguin colonies around the coast of Antarctica, with seven previously unknown.

"The methods we used are an enormous step forward in Antarctic ecology because we can conduct research safely and efficiently with little environmental impact, and determine estimates of an entire penguin population, said co-author Michelle LaRue from the University of Minnesota and funded by the U.S. National Scien
'/>"/>

Contact: Heather Martin
hert@bas.ac.uk
44-122-322-1226
British Antarctic Survey
Source:Eurekalert

Page: 1 2

Related biology news :

1. Jefferson scientists deliver toxic genes to effectively kill pancreatic cancer cells
2. Scientists identify novel inhibitor of human microRNA
3. Argonne scientists peer into heart of compound that may detect chemical, biological weapons
4. MU scientists go green with gold, distribute environmentally friendly nanoparticles
5. Scientists identify gene that may contribute to improved rice yield
6. Scientists discover why a mothers high-fat diet contributes to obesity in her children
7. MU scientists see how HIV matures into an infection
8. Earth scientists keep an eye on Texas
9. Thinking it through: Scientists call for policy to guide biofuels industry toward sustainability
10. Scientists identify a molecule that coordinates the movement of cells
11. Scientists Find new migratory patterns for Mediterranean and Western Atlantic bluefin tuna
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/22/2015)... ROBERTS, Washington , January 20, 2015 ... and tech stocks, releases video from the CES 2015 (Consumer ... consultant Apollo Robbins . Apollo shows how ... biometric smart wallet, a product of NXT-ID, Inc. (NASDAQ: ...
(Date:1/22/2015)... 22, 2015   EyeLock, Inc. , a market leader of ... Steve Gerber to the new role of Senior Vice ... leading development of mobile platforms and wearable solutions for EyeLock,s ... innovation in the semiconductor industry to his role at EyeLock, ...
(Date:12/22/2014)... , Dec. 22, 2014 Research and Markets ... addition of the "The Global Watermarking and ... http://photos.prnewswire.com/prnh/20130307/600769 ... digital media watermarking and fingerprinting markets. Watermarking aims ...
Breaking Biology News(10 mins):Apollo Robbins Talks about the Illusion of Personal Safety and How Easily Your Wallet is Stolen; If a Wocket Wallet is Stolen the Thief Can't do Anything With it! 2Apollo Robbins Talks about the Illusion of Personal Safety and How Easily Your Wallet is Stolen; If a Wocket Wallet is Stolen the Thief Can't do Anything With it! 3EyeLock Names Steve Gerber as Senior Vice President of Mobile and Wearables 2The Global Watermarking and Fingerprinting Markets 2
... across the American West escalated into a high-profile national feud ... two scientists from the Lone Star State: geologist Robert T. ... naturalist Jacob Boll, who made many of the state,s earliest ... the Bone Wars through their work for one of the ...
... ideas of nature by engaging in practices that are ... study in the Journal of Consumer Research . ... often considered the ideal place to escape from everyday ... as diverse as surfing, tropical island holidays, and the ...
... Bracelets and amulets are in the works at ... than items of mere adornment, the scientists and engineers ... as it were. mHealth is a rapidly growing ... your health through mobile devices. This approach can offer ...
Cached Biology News:Newly discovered letters and translated German ode expand Texas link to infamous Bone Wars 2Newly discovered letters and translated German ode expand Texas link to infamous Bone Wars 3Newly discovered letters and translated German ode expand Texas link to infamous Bone Wars 4Newly discovered letters and translated German ode expand Texas link to infamous Bone Wars 5Trouble in paradise: Does nature worship harm the environment? 2Dartmouth research imparts momentum to mobile health 2Dartmouth research imparts momentum to mobile health 3Dartmouth research imparts momentum to mobile health 4
(Date:1/22/2015)... California (PRWEB) January 22, 2015 Eckert ... Accelerator Mass Spectrometry (AMS) services to the pharmaceutical and ... has joined the company in the position of Director ... years of broad and valuable experience in drug metabolism ...
(Date:1/22/2015)... RBJ today announces the firm brokered a long-term lease totaling ... biopharmaceutical company, at Two Ledgemont Center in Lexington, ... president, and Brian Cohen , senior vice president, represented ... 95 Hayden Ave. Photo - http://photos.prnewswire.com/prnh/20150122/170765 ...
(Date:1/22/2015)... Crystal Diagnostics (CDx) Xpress System, a rapid ... AOAC-PTM Certifications for the six non-O157 Shiga toxin-producing E. coli ... to as STEC or the “Big-6”) as well as Escherichia ... per 325 g of raw ground beef and raw beef ...
(Date:1/22/2015)... Controlled Substance Compliance Services (CSCS), a project managed ... legal requirements around using controlled substances in pharmaceutical research, ... their international operations expand and become increasingly complex, large ... a result of the first phase of the CSCS ...
Breaking Biology Technology:Eckert & Ziegler Vitalea Science appoints Mark Seymour, PhD as Director of Science & Technology 2Eckert & Ziegler Vitalea Science appoints Mark Seymour, PhD as Director of Science & Technology 3Transwestern?RBJ Advises Shire in 202,000 SF Lease, Creating Boston's Largest Suburban Biotech Campus 2Crystal Diagnostics Awarded AOAC-PTM Accreditation for the Rapid Detection of “Big 6” E.coli Food Pathogens 2Global Compliance Service for Controlled Substances to Expand to China 2
... efficiency of solar cells, spending the time and effort to ... of ordinary silicon wafers may not be worth the effort. ... time demonstrated that random, haphazardly grown silicon nanowires can significantly ... broad spectrum of light waves and capturing sunlight streaming in ...
... 12, 2011 For years, dieters and researchers around the ... hCG (human Chorionic Gonadotropin) supplements can have on the ... Capsules by Creative Bioscience, a leader in diet ... healthy can take advantage of the powerful metabolic boost of ...
... 9, 2011 PharmAthene, Inc. (NYSE Amex: ... progress in the development of its second generation anthrax ... at the 100 liter scale and demonstrating 36 month ... completed a 1,500 liter engineering production run for SparVax™. ...
Cached Biology Technology:Hormone-free hCG Zero Capsules™ Boost Metabolism to Enhance Weight Loss Without Starvation 2Hormone-free hCG Zero Capsules™ Boost Metabolism to Enhance Weight Loss Without Starvation 3Hormone-free hCG Zero Capsules™ Boost Metabolism to Enhance Weight Loss Without Starvation 4PharmAthene Achieves Significant Progress in SparVax™ Anthrax Vaccine Program 2PharmAthene Achieves Significant Progress in SparVax™ Anthrax Vaccine Program 3PharmAthene Achieves Significant Progress in SparVax™ Anthrax Vaccine Program 4
...
Auto/Zyme Reagent...
HistoScan HRP Kit Universal Goat Kit...
Interact with both DNA and RNA; fluorescence green (Em=525 nm) bound to DNA; and fluorescence red (Em=~650 nm) bound to RNA....
Biology Products: